Red Jacket LPG Premier User manual

Manual No: 051-327-1 ●Revision: N
Installation Guide
LPG Premier
LPG Premier MidFlow
LPG Premier HiFlow

Notice
Veeder-Root makes no warranty of any kind with regard to this publication, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose.
Veeder-Root shall not be liable for errors contained herein or for incidental or consequential damages in
connection with the furnishing, performance, or use of this publication.
Veeder-Root reserves the right to change system options or features, or the information contained in this publication.
This publication contains proprietary information which is protected by copyright. All rights reserved. No part of this publication
may be photocopied, reproduced, or translated to another language without the prior written consent of Veeder-Root.
Contact Red Jacket Technical Support for additional troubleshooting information at 800-323-1799.
DAMAGE GOODS/LOST EQUIPMENT
Thoroughly examine all components and units as soon as they are received. If any cartons are damaged or missing, write a
complete and detailed description of the damage or shortage on the face of the freight bill. The carrier's agent must verify the
inspection and sign the description. Refuse only the damaged product, not the entire shipment.
VR must be notified of any damages and/or shortages within 30 days of receipt of the shipment, as stated in our Terms and
Conditions.
VEEDER-ROOT’S PREFERRED CARRIER
1. Fax Bill of Lading to V/R Customer Service at 800-234-5350.
2. Call V/R Customer Service at 800-873-3313 with the specific part numbers and quantities that were received damaged or
lost.
3. VR will file the claim with the carrier and replace the damaged/missing product at no charge to the customer. Customer
Service will work with production facility to have the replacement product shipped as soon as possible.
CUSTOMER’S PREFERRED CARRIER
1. Customer files claim with carrier.
2. Customer may submit a replacement purchase order. Customer Service will work with production facility to have the
replacement product shipped as soon as possible.
3. If “lost” equipment is delivered at a later date and is not needed, VR will allow a Return to Stock without a restocking fee.
4. VR will NOT be responsible for any compensation when a customer chooses their own carrier.
RETURN SHIPPING
For the parts return procedure, please follow the instructions in the “General Returned Goods Policy” pages of the “Policies and
Literature” section of the Veeder-Root North American Red Jacket Mechanical Products Price Book. Veeder-Root will not accept
any return product without a Return Goods Authorization (RGA) number clearly printed on the outside of the package.
©Veeder-Root 2018. All rights reserved.

Table of Contents
iii
Introduction
ATEX Conditions for Safe Use: ........................................................................................1
Safety Precautions ............................................................................................................2
Basic Principle of the Red Jacket Submersible LPG Pump ..............................................3
Submerged LPG System Explanation ..............................................................................4
The Electrical Conduit .......................................................................................................5
Direct Installation ..............................................................................................................5
The Manifold .....................................................................................................................8
By-Pass ..........................................................................................................................13
Equalization Line ............................................................................................................13
System Protection ...........................................................................................................14
Potential Problems .................................................................................................14
Low-pressure/Dry-Run Protection Unit (LPG Run Box) .........................................15
Prior to Installing or Replacing LPG Pump or Motor
Electrical Service Information .................................................................................17
Marking...................................................................................................................17
Pump and Motor Weights .......................................................................................17
Installing A Red Jacket Submersible LPG Pump-Motor Unit
General ...........................................................................................................................18
System Description.................................................................................................18
LPG Pump-Motor Unit ....................................................................................................19
Fitting the Pump-Motor Unit into the Manifold or Storage Tank ......................................21
Electrical Connection ......................................................................................................21
Determining Correct Motor Rotation.......................................................................21
Three-Phase Current Unbalance............................................................................21
Typical System Schemes with Submersible LPG Pump-Motor Unit ...............................22
General...................................................................................................................22
Design and Test Pressures ....................................................................................22
Material...................................................................................................................23
Flanges...................................................................................................................23
Name Plate.............................................................................................................23
System Components ..............................................................................................23
Gas Filling .......................................................................................................................28
Gas Filling Requirements .......................................................................................28
Gas filling procedure...............................................................................................28
Servicing The Red Jacket LPG Pump-Motor Unit
Degassing a Manifold and Replacing a Red Jacket LPG Pump-Motor Unit ...................29
Prior to Starting.......................................................................................................29
Degassing Procedure .............................................................................................29
Replace the pump and restart the installation ........................................................29
Filling the manifold and pump-motor unit with liquid...............................................30
Maintenance of the Red Jacket Submersible LPG Pump-Motor Unit .............................31
Yearly Inspections ..................................................................................................31
Troubleshooting Guide ...................................................................................................32

Table of Contents
iv
Figures
Figure 1. Direct Installation of Red Jacket LPG Pump-Motor Unit .........................6
Figure 2. Vertical Manifold with Red Jacket LPG Pump-Motor Unit ......................9
Figure 3. Horizontal Manifold With Red Jacket LPG Pump-Motor Unit ...............11
Figure 4. Example installed position of LPG pumps within manifold ...................19
Figure 5. Discharge Head ....................................................................................20
Figure 6. Example percentage of unbalance calculation .....................................22
Figure 7. Typical Scheme For An Underground LPG Storage Tank
With Vertical Submersible Pump-Motor Unit ........................................25
Figure 8. Typical Scheme For An Aboveground LPG Storage Tank
With Horizontal Submersible Pump-Motor Unit ....................................26
Figure 9. Typical Scheme For A Direct Installation With Vertical
Submersible Pump-Motor Unit ..............................................................27
Figure 10. Service Parts ........................................................................................31
Tables
Table 1. LPG Pump-Motor Unit Models ..................................................................4
Table 2. Recommended Material List for Direct Installation of Red Jacket
LPG Pump-Motor Unit (ref. Figure 1) ........................................................7
Table 3. Recommended Material List for Vertical Manifold with Red Jacket
LPG Pump-Motor Unit (ref. Figure 2) ......................................................10
Table 4. Recommended Material List for Horizontal Manifold with
Red Jacket LPG Pump-Motor Unit (ref. Figure 3) ...................................12
Table 5. Potential Performance Problems .............................................................14
Table 6. Motor Package Contents .........................................................................19
Table 7. Required Data on Manifold Name Plate ..................................................23
Table 8. Example System Components ................................................................23
Table 9. Minimum Design Requirements Vertical Manifold ...................................25
Table 10. Minimum Design Requirements Horizontal Manifold ..............................26
Table 11. Service Parts List ....................................................................................31

1
Introduction
Improvements and market demand have resulted in the development of the latest LPG Premier and LPG Premier
Mid-Flow and LPG Premier Hi-Flow pump-motor units for the Liquefied Petroleum Gas sector of the market place.
These new ATEX certified pump-motor units contain the latest high temperature, non-conductive engineered
materials. EC Type Examination Certificate marking is
c1180 eII 2G Ex b c db IIA T4 Gb DEMKO 13 ATEX 9990794X
The Red Jacket submersible LPG pump and motor designs have more than twenty years of proven service
throughout the world. All major oil and gas companies are using submersible technology. The pumps are used in
filling stations for bottles, automobiles, trucks and buses. In the industrial sector installations include, but are not
limited to, loading facilities, foam, aerosol and paper mills.
The Red Jacket submersible LPG pumps are electrical motor-driven centrifugal types designed for use in LPG
filling station flow metering systems. The pumps are typically installed in a separate manifold direct into the storage
vessels and are approved for use in Autogas motor fuels. Pumps can be installed in vertical and horizontal
applications. The pump has a maximum rotational speed of 3000 RPM and is to be rigidly mounted to the
electrical motor. The pumps provide positive pressure at all times to the flow meters.
The submersible LPG system installation consists of:
• A manifold including, overflow protector, shut off valve, equalization line, electrical junction box and a connection
for a vapor return, pressure gauge and a separate connection for purge valve.
• A cable conduit entry of 1/2-14 inch NPTF threads mounted within the product line (column pipe).
• A motor with internal by-pass and pump section
The electric wires from the electrical junction box to the motor run through the conduit pipe. The conduit pipe is
mounted inside the product line and is sealed against the pumped liquid. The electrical wires are mounted in a
plug (pigtail) which provides a seal into the motor. The color-coded wires are provided with a LPG (propane and
butane) resistant coating.
The pump-motor unit consists of two parts, the motor 50 Hz, 380-415 Vac (stator, rotor, electrical-connections
and bearings) and the pump (multi-stage centrifugal). Motor and pump sections are each enclosed in stainless
steel shells.
The United States Patent Office has granted patent number 6,129,529 to the pump-motor unit design.
ATEX Conditions for Safe Use:
• All submersible pump-motor units, manifolds and associated equipment shall be installed in accordance with the
manufacturer’s installation, operation and service manuals supplied and with local installation requirements.
• Drawing 410742-001 details dimensions of the flameproof joints, non-metallic materials and operating limits.
• This pump-motor unit is not intended to be repaired or adjusted. The pump and motor must be replaced as a
complete set, not individually unless prior approval from Veeder Root is received.
• All installations shall provide reliable electrical connection between the submersible LPG pump, frame, piping,
manifold or junction box and the tank structure for the electrical protection and equipotential bonding.
• The installer must supply a length of electrical conduit so that the motor conductors can be sealed and thereby
separated from the pumped fluid.
• Fasteners securing the discharge head shall be replaced only with fasteners provided in kit 144-220-5.
• Where a differential pressure switch or transducer is installed, each must be capable of ensuring that the
nominated temperature classification is not exceeded.
• Compliance with the Essential Health and Safety Requirements has been assured by compliance with:
EN 60079-0:2012+A11:2013, EN 60079-1:2014, EN 13463-1:2009, EN 13463-3:2005, EN 13463-5:2011,
EN 13463-6:2005, DEMKO 13 ATEX 9990794X.

Introduction Safety Precautions
2
Safety Precautions
The following safety symbols are used throughout this manual to alert you to important safety hazards and
precautions.
• The equipotential bonding must be carried out by the installer in accordance with the nationally applicable
installation regulations. For this purpose the piping components of the installed pump must be used.
• Protection against lightning reduces the risk of loss, damage or injury from direct strikes and against low energy
surges.
• Protection provided by the various methods and approaches as prescribed by NFPA 780 and the IEC 62305
series of standards. Protection to the electronic equipment, communication and signal lines is ensured by
providing surge protection to them.
• FIRE HAZARD! Do NOT use power tools during the installation or maintenance of equipment. Sparking could
ignite fuel or vapors, resulting in fire. Use only spark-proof tools.
Note: This information is generated as a consequence of carrying out the ignition hazard assessment.
EXPLOSIVE
Fuels and their vapors are extremely explo-
sive if ignited.
FLAMMABLE
Fuels and their vapors are extremely flamma-
ble.
WARNING
Warning Alert - read message and follow
instructions to avoid serious injury, death, or
substantial property damage.
TURN POWER OFF
Live power to a device creates a potential
shock hazard. Turn Off power to the device and
associated accessories when servicing the
unit.
ELECTRICITY
High voltage exists in, and is supplied to, the
device. A potential shock hazard exists.
FENCE OFF WORK AREA
Fuels and their vapors are extremely explosive
if ignited. Keep hazardous zone free of unau-
thorised personnel and vehicles. Put up fenc-
ing and/or barricades to safeguard work area.
WEAR EYE PROTECTION
Wear eye protection when working with pres-
surized fuel lines or epoxy sealant to avoid pos-
sible eye injury.
GLOVES
Wear gloves to protect hands from irritation or
injury.
READ ALL RELATED MANUALS
Knowledge of all related procedures before
you begin work is important. Read and under-
stand all manuals thoroughly. If you do not
understand a procedure, ask someone who
does.
WARNING
Portions of this product are to be installed and operated in the highly
combustible environment of a LPG storage tank. It is essential that
you carefully read and follow the warnings and instructions in this
manual, failure to do so, can result in damage to property,
environment, personal injury or death.
OFF
OFF

Introduction Basic Principle of the Red Jacket Submersible LPG Pump
3
Basic Principle of the Red Jacket Submersible LPG Pump
Red Jacket submersible LPG pumps are multi-stage centrifugal pumps. The advantage of the multi-stage
technology is maximum performance by a minimum of energy, respectively 2.25 kW (3 hp) for the Premier pump,
2.25 kW (3 hp) for the Mid-Flow and 3.75 kW (5 hp) for the Hi-Flow pump. During operation, the pressure
increases with approximately 50 kPa (7.25 psi) per stage up to the maximum design pressure of the pump
respectively 1000 kPa (145 psi) for Premier, 880 kPa (127 psi) for Mid-Flow and 1220 kPa (180 psi) for Hi-Flow.
LPG is a mixture of gasses, primarily propane and butane which are vapors at atmospheric pressure. This means
as long as the mixture is under sufficient pressure the mixture remains liquid.
Every stage consists of three parts; a. the diffuser, b. the diffuser plate and c. the impeller. The impellers are
working on the floating principal. This means that during operation the impellers are floating in the liquid. Between
the impeller and the diffuser and between the impeller and the diffuser plate there is a liquid film. This floating
principle avoids any unnecessarily resistance in the pump. As long as all the impellers are floating in the liquid, the
pump runs on maximum capacity with a minimum of energy. All respectively, 17, 21 or 24 diffusers are interlocked
and are enclosed in a stainless steel shell. There is not a requirement for initial bearing running-in period for the
Red Jacket submersible LPG pumps.
For all types of Red Jacket submersible LPG pumps, the minimum differential pressure can never be allowed to go
below 400 kPa (58 psi). This minimum required differential pressure of 400 kPa (58 psi) is to guarantee that
during operation all respectively 17, 21or 24 stages are submerged in the LPG liquid.
Another basic rule for a centrifugal pump is that there must be sufficient liquid available by the inlet of the pump.
The pump can only build differential pressure when the first stage of the pump is completely submerged in the
liquid. This NPSH (Net Positive Suction Head) is for all types Red Jacket submersible LPG pumps 127 mm (5.0
inches) above pump inlet opening.
The motors provided in these submersible pump-motor units are flameproof type 1180 eII 2 G Ex db IIA Gb
with the certificates DEMKO 13 ATEX 9483031U and IECEx UL 13.0034U. They are designed to permit the LPG
to flow through and around the motor and contain an internal bleed (by-pass).
The pumped liquid flows from the impellers between the motor shell and the stator, upward to the column pipe. A
calculated part of the liquid passes through the motor flame barriers (breathers), motor bearings for cooling and
lubrication. This amount of liquid passes through a self-adjusting bypass back into the pumped liquid. A calculated
part of the pumped liquid passes through the internal by-pass to the manifold or storage tank to provide cooling for
the pump/motor assembly.

Introduction Submerged LPG System Explanation
4
Submerged LPG System Explanation
All calculations assume atmospheric pressure is 1013 mbar (14.7 psi) and outside temperature 15ºC (59ºF).
Mixture is assumed to be 40% propane and 60% butane.
The pump-motor units are approved for use with butane and propane and any mix of butane and propane. It has
been assumed that automotive LPG consists predominantly of propane, butane, with small proportions of propene,
butenes and pentanes/pentenes.
Temperature range - 20ºC to + 40°C (-4°F to +104°F)
System pressure - Max. 2500 kPa (362 psi)
Electric connection and motor protection - according to local regulation, or: NEN 1010 & NEN 3413 (Electrical
components in Hazardous Areas), VDE 0100 & VDE 0165 (Electrical components in Hazardous Areas).
The pump-motor unit consists of two parts; the motor 50/60 Hz. 380 - 415 Vac (stator, rotor, electrical
connections and bearings) and the pump (17, 21 or 24 impellers). Motor and pump are enclosed in stainless steel
shells. The Red Jacket submersible Premier, Premier Mid-Flow or Premier Hi-Flow LPG pump is not repairable. The
pump and motor of all three must be replaced as a complete set, not individually.
The stator is fitted with a containment shell of sheet metal and the windings are fully cast in epoxy. The section
with the pigtail (discharge head) consists of a metal body (Ex ’d’ flameproof enclosure) and electrical connections.
The wires in the connectors are cast in epoxy. The rotor conductors are copper bars.
Table 1. LPG Pump-Motor Unit Models
Premier
Nomenclature: LPG300V17-21
50 hertz, 380 – 415 Vac, 3 hp
Setting thermal switch on the switch board: 6.1 amp
70 liter/min by 680 kPa (18.5 gallon/min. by 98.6 psi) (max. efficiency)
Max differential pressure 1000 kPa (145 psi)
Capacity internal by-pass at max pressure: 20 liter/min. (5.3 gallon/min.)
Minimum external flow - not required.
Designed for 1-2 nozzles of 35 liter (9.2 gallon) simultaneously
Premier MidFlow
Nomenclature: LPG300V17-17
50 hertz, 380 – 415 Vac, 3 hp
Setting thermal switch on the switch board: 6.1 amp
130 liter/min by 580 kPa (34.3 gallon/min. by 84 psi) (max. efficiency)
Max differential pressure 880 kPa (127 psi)
Capacity internal by-pass at max pressure: 20 liter/min. (5.3 gallon/min.)
Minimum external flow - not required.
Designed for 2-4 nozzles of 35 liter (9.2 gallon) simultaneously
Premier HiFlow
Nomenclature: LPG500V17-24
50 hertz, 380 – 415 Vac, 5 hp
Setting thermal switch on the switch board: 9.8 amp
130 liter/min by 810 kPa (34.3 gallon/min. by 117 psi) (max. efficiency)
Max differential pressure 1220 kPa (180 psi)
Capacity internal by-pass at max pressure: 20 liter/min. (5.3 gallon/min.)
Minimum external flow - not required.
Designed for 4-5 nozzle’s of 35 liter (9.2 gallon) simultaneously or 150 liter (39.6 gallon) for one nozzle

Introduction The Electrical Conduit
5
The Electrical Conduit
The installer must supply the electrical conduit so that the wires can be sealed from the pumped liquid. The pipe
must be Schedule 80 and threaded 1/2-14 inch NPTF per ANSI B1.20.3 a length of 16.2 to 19.9 mm (0.64 to
0.78 inch). This will result in a thread engagement of 5 to 7 threads. Measurement of the thread profile is specified
in ANSI B1.20.5. Female threads shall gauge at “flush” to “2 turns large” using an L1 plug-gauge. Apply Loctite
565, 570 or 577 thread sealant (Butane and Propane resistant) to both ends of the conduit pipe.
Direct Installation
Installing the submersible pump directly into the storage tank without a manifold is allowable only when permitted
by local regulations.
In such installations, the clearance between the tank bottom and pump inlet must be a minimum of 125 mm (5
inches). A sump directly underneath the pump may be used if the size is at least DN200 (8 inches). Figure 1
illustrates recommendations for the Red Jacket LPG pump directly installed in a tank and Table 2 contains an
itemized material list for the Figure 1 installation.

Introduction Direct Installation
6
Figure 1. Direct Installation of Red Jacket LPG Pump-Motor Unit
FLANGED VALVE
FLANGE
VAPOR LINE
LIQUID LINE WITH
DIRECTION ARROW
4
5
3/4" VAPOR LINE
1 1/4" DISPENSING LINE
9
FILL 2"
15
24
2
1
3
18 11 10 17
20
19
15
14
13
22
21
23
6
16
8
7
12
25
125mm MINIMUM
BOTTOM CLEARANCE

Introduction Direct Installation
7
Table 2. Recommended Material List for Direct Installation of Red Jacket LPG Pump-Motor Unit (ref. Figure 1)
Item Description
Size
(inches)
Recommended
Manufacturer Type/Remark Other
1 Pump 4 Red Jacket
Premier/Premier MidFlow/
Premier HiFlow
2 Excess flow valve 3/4 Rego A3272 G (if applicable)
3 Reducing socket 2 x 3/4 (if applicable)
4 Ball valve 1/4 Argus EK/71 (if applicable)
5 Pressure gauge 1/4 Wika
6 Flange 5 (if applicable)
7 Flange 2
8 Kit conduit box 1 Red Jacket 114-115-5
9 Ball valve 2 Argus EK/71
10 Relief valve 1/4 Rego 3127 G
11 Remote control valve 3/4 Argus EK/71 (Pneu/Electrto)
12 Internal bleed (bypass) Red Jacket Provided in pump motor
13 Remote control valve 2 Argus EK/71 (Pneu/Electrto)
14 Relief valve 1/4 Rego 3127 G
15 Ball valve 2 Argus EK/71
16 Flange 2
17 Reducing socket 2 x 3/4
18 Relief valve 1/4 Rego 3127 G
19 Pressure gauge 1/4 Wika
20 Ball valve 1/4 Argus EK/71
21 Relief valve 1/4 Rego 3127 G
22 Reducing socket 2 x 1-1/4
23 Manhole cover 20
24 Check valve 2 Rego A3186
25 Tank bottom
125mm (5 inches) minimum to
inlet

Introduction The Manifold
8
The Manifold
According to the “Regulations”1, a LPG submersible pump must be installed in a so-called pump well. This pump
well (manifold) is designed so that the submersible pump can be installed and removed under any condition, i.e.
when the storage vessel is either empty or (partly) filled.
A manifold is classified as an unfired pressure vessel, and is designed according to regulations for Pressure
Vessels. The manifold must be suitable for the type of pump, to guarantee the above-described minimum
requirements. Figure 2 illustrates a recommended vertical manifold for the Red Jacket LPG pump and Table 3
contains an itemized material list for the Figure 2 manifold.
1. “Regulations” in this manual refer to “Regulations for LPG Service Stations and Road Tank Trucks in the
Netherlands”; Dutch Ministry of Housing, Physical Planning and Environment.

Introduction The Manifold
9
Figure 2. Vertical Manifold with Red Jacket LPG Pump-Motor Unit
FLANGED VALVE
FLANGE
VAPOR LINE
LIQUID LINE WITH
DIRECTION ARROW
MANIFOLD
12a
31
7
8
3/4" VAPOR LINE
1-1/4" DISPENSING LINE
30
15
18
FILL 2"
21
33 5
21
4
3
34
6
29
24 17 16 23
26
25
21
2019
28
27
9
32
10
22
12
11
14
13
rj/051-327/fig1.eps

Introduction The Manifold
10
Table 3. Recommended Material List for Vertical Manifold with Red Jacket LPG Pump-Motor Unit (ref. Figure 2)
Item Description
Size
(inches)
Recommended
Manufacturer Type/Remark Other
1 Excess flow valve 2 Rego A3292 C (if applicable)
2* Ball valve 2 Worcester A44
3* Manifold 5 acc. 8.5.2b Regulations
4 Pump 4 Red Jacket Premier/Premier MidFlow/
Premier HiFlow
5 Excess flow valve 3/4 Rego A3272 G (if applicable)
6 Reducing socket 2 x 3/4 (if applicable)
7 Ball valve 1/4 Argus EK/71 (if applicable)
8 Pressure gauge 1/4 Wika
9* Closing device 2 acc. 8.5.2h Regulations
10* Flange 5
11* Ball valve 1/2 Argus EK/71
12* Equalization line acc. 8.5.2c Regulations
12a* Excess flow valve 3/4 Rego A3272 G (if applicable)
13 Flange 2
14* Kit conduit box 1 Red Jacket 114-115-5
15 Ball valve 2 Argus EK/71
16 Relief valve 1/4 Rego 3127 G
17 Remote control valve 3/4 Argus EK/71 (Pneu/Electrto)
18 Internal bleed (bypass) Red Jacket Provided in pump motor
19 Remote control valve 2 Argus EK/71 (Pneu/Electrto)
20 Relief valve 1/4 Rego 3127 G
21 Ball valve 2 Argus EK/71
22* Flange 2
23 Reducing socket 2 x 3/4
24 Relief valve 1/4 Rego 3127 G
25 Pressure gauge 1/4 Wika
26 Ball valve 1/4 Argus EK/71
27 Relief valve 1/4 Rego 3127 G
28 Reducing socket 2 x 1-1/4
29* Vent of pump well 1/4 acc. 8.5.2b/c Regulations
30* Ball valve 1/4 Argus EK/71

Introduction The Manifold
11
The Red Jacket LPG pump can also be installed in a horizontal manifold. The pump unit must be supported by
three load bearing supports inside the manifold. The manifold is generally mounted underneath the storage vessel
and requires a vapor return/equalization line back to the vapor space of the storage vessel. Figure 3 illustrates a
recommended horizontal manifold for the Red Jacket LPG pump and Table 4 contains an itemized list for the
Figure 3 manifold.
Figure 3. Horizontal Manifold With Red Jacket LPG Pump-Motor Unit
31 Relief valve 1/4 Rego 3127 G
32* Manhole cover
NW 420
(φ525 mm)
33 Check valve 2 Rego A3186
34* Control rod
Table 3. Recommended Material List for Vertical Manifold with Red Jacket LPG Pump-Motor Unit (ref. Figure 2)
Item Description
Size
(inches)
Recommended
Manufacturer Type/Remark Other
DIRECTION ARROW
LIQUID LINE WITH
VAPOR LINE
FLANGE
FLANGED VALVE
33
3
2
1
4
MANIFOLD
5
6
20
1-1/4" DISPENSING LINE
FILL 2"
32 21
3/4" VAPOR LINE
27
19
28
11
9
22
29 30 31
15
10
13
21
26 25
24
17
16
14
23
7
8
12
3/4" VAPOR LINE
3318
rj/051-327-fig8.eps

Introduction The Manifold
12
Table 4. Recommended Material List for Horizontal Manifold with Red Jacket LPG Pump-Motor Unit (ref. Figure 3)
Item Description
Size
(inches)
Recommended
Manufacturer Type/Remark Other
1 Excess flow valve 2 Rego A3292 C (if applicable)
2* Ball valve 2 Worcester A44
3 Isolator/Support 4 DSI PA/PE4-38 3
4 Pump 4 Red Jacket Premier/Premier MidFlow/
Premier HiFlow
5 Excess flow valve 3/4 Rego A3272 G (if applicable)
6 Reducing socket 2 x 3/4 (if applicable)
7 Ball valve 1/4 Argus EK/71 (if applicable)
8 Pressure gauge 1/4 Wika
9 Excess flow valve 3/4 Rego A3272 G
10* Flange 5
11* Ball valve 3/4 Argus EK/71
12* Vapor return acc. 8.5.2c Regulations
13 Flange 2
14* Kit conduit box 1 Red Jacket 114-115-5
15 Ball valve 2 Argus EK/71
16 Relief valve 1/4 Rego 3127 G
17 Remote control valve 3/4 Argus EK/71 (Pneu/Electrto)
18 Internal bleed (bypass) Red Jacket Provided in pump motor
19 Remote control valve 2 Argus EK/71 (Pneu/Electrto)
20 Relief valve 1/4 Rego 3127 G
21 Ball valve 2 Argus EK/71
22* Flange 3/4
23 Reducing socket 2 x 3/4
24 Relief valve 1/4 Rego 3127 G
25 Pressure gauge 1/4 Wika
26 Ball valve 1/4 Argus EK/71
27 Relief valve 1/4 Rego 3127 G
28 Reducing socket 2 x 1-1/4
29*
Vent of pump well/vapor
return 1/4 acc. 8.5.2b/c Regulations
30* Ball valve 1/4 Argus EK/71

Introduction By-Pass
13
By-Pass
All Red Jacket submersible LPG pumps are required to be coupled to a motor containing an internal bleed (by-
pass).
The Premier pump developed maximum pressure is 1000 kPa (145 psi) differential pressure. The Premier Mid-
Flow pump developed maximum pressure is 880 kPa (127 psi) differential pressure. The Premier Hi-Flow pump
developed maximum pressure is 1220 kPa (180 psi) differential pressure. For pump technical reasons an externally
mounted by-pass is not required.
According to the “Regulations” 1, “An LPG pump shall be provided with an overflow/relief valve to protect the
pump casing from overpressure when pumping against closed discharge. This bypass valve shall discharge into
the LPG storage tank at a predetermined set pressure selected in relation to the pump operating pressure. This
bypass valve shall be of sufficient capacity to handle the maximum flow at this pressure.” The internal bleed in the
Red Jacket LPG motor is designed according to this regulation.
When a local safety regulation requires an external by-pass this requirement must be applied. By the use of an
external by-pass the setting must be above normal pump maximum pressure as stated above. By-pass must be of
the soft-seat type without permanent bleed.
Equalization Line
The function of the equalization line is to equalize the pressure in the vapor space of the tank and the pressure of
the manifold, to overcome running dry of the submersible pump by low liquid level and to equalize the pressure
during refill of the installation.
The design of the equalization line must be so that the outside temperature has no influence on the function of the
equalization line. An internal equalization line is recommended. Note if liquid level is below internal bleed in the
motor, the amount of liquid of the internal bleed will increase the pressure in the manifold if the equalization line is
too small.
The equalization line is one of the most important parts of the installation. As described above the equalization line
needs to be as short as possible and relatively large in diameter. The lower the level of the liquid in the storage
tank the more important is the function of the equalization line.
The functionality of the equalization line can be tested very easily when the liquid level is below the internal by-pass
of the motor.
• Let the pump run against closed valve.
• Measure the differential pressure of the pump.
• If the differential pressure remains the same after 10 or 15 minutes of pump run the equalization line is working.
• If the pressure drops, the pump is cavitating, and the pump will become vapor-locked. In this case, the
equalization line is not sufficient.
31 Relief valve 1/4 Rego 3127 G
32 Storage vessel
33 Check valve 2 Rego A3186
Table 4. Recommended Material List for Horizontal Manifold with Red Jacket LPG Pump-Motor Unit (ref. Figure 3)
Item Description
Size
(inches)
Recommended
Manufacturer Type/Remark Other

Introduction System Protection
14
System Protection
Red Jacket recommends a complete system built around the pump to ensure safety, reliability, stability, and
performance. If the entire system is calculated and built according to accepted specifications, the installation will
operate for many years without requiring any form of maintenance.
There are two pump characteristics that can be checked if performance deteriorates:
1. Its output - flow rate versus pressure.
2. Its electrical connections and amperage consumed under load.
Potential Problems
Red Jacket submersible LPG pumps are multi-stage centrifugal pumps. The advantage of the multi-stage
technology is maximum performance by a minimum of energy, respectively 2.25 kW (3 hp) for the 21 stage
Premier pump, 2.25 kW (3 hp) for the 17 stage Premier MidFlow pump and 3.75 kW (5 hp) for the 24 stage
Premier HiFlow pump. During operation the pressure increases with approximately 50 kPa (7.25 psi) per stage up
to the maximum design pressure of the pump respectively 1000 kPa (145 psi) for the Premier pump, 880 kPa
(127 psi) for Premier MidFlow pump and 1220 kPa (180 psi) for Premier HiFlow pump.
For all types of Red Jacket submersible LPG pumps the minimum differential pressure can never be below 400
kPa (58 psi). This minimum required differential pressure is to guarantee that during operation all respectively 17,
21 or 24 stages are submerged in the LPG liquid. Another basic rule for a centrifugal pump is that there must be
sufficient liquid available by the inlet of the pump. The pump can only build differential pressure when the first
stage of the pump is completely submerged in the liquid. This so-called NPSH (Net Positive Suction Head) is 127
mm (5 inches) above pump inlet opening for all types Red Jacket submersible LPG pumps.
Cavitation is when the liquid flows with a velocity high enough to reduce the local pressure below vapor pressure
forming small gas-filled bubbles. These gas-filled bubbles exhibit complex dynamics and erosive action on nearby
surfaces.
Table 5. Potential Performance Problems
Problem Solution
Dry run A control box with low pressure detection can detect both of these performance prob-
lems.
Cavitation
Equalization line in
the manifold is too
small
The Red Jacket LPG pump has an internal by-pass. A certain amount of LPG passes
and cools the motor (self-maintaining principle) and exits the pump at the internal by-
pass. The motor’s heat is transferred to the liquid and is therefore warmer than the liq-
uid in the tank. Also this liquid has a higher vapor pressure than does the liquid in the
tank. The equalization line between the manifold and the tank is to balance both liquid
levels. If this equalization line is too small or even closed, the manifold can be emptied
through the manifold inlet and it can cause a dry run or even cavitation.
Dirt in the tank Small parts of LPG dust or iron oxide, which can normally be found in LPG, will not
hurt the system. During operation those particles can, however, block the breather
plugs at the inlet of the pump-motor, but when the pump is switched off a small amount
of liquid will be pressurized back in the tank. This amount of liquid will clean the
breather plugs again.
Of course, any form of dirt should be avoided and shortens the expected lifetime of the
pump. It is recommended to install a strainer (100-micron) at the inlet of the storage
tank to avoid dirt entering the tank during deliveries.

Introduction System Protection
15
When the temperature of LPG increases, it can vaporize. Vaporized liquefied petroleum gas expands at a rate of
approximately 265:1. Due to the liquid vaporizing, sections of the LPG pump staging wear and will be damaged.
The motor of the pump needs to be cooled. Red Jacket does this by using the LPG. When operating, the LPG
runs through and around the motor to cool it. In addition, LPG is used to lubricate the bearings. The first impeller of
the pump needs to be submersed, so that the LPG can cool the motor. If the product level is too low, the motor
cannot cool itself and the bearings will not be lubricated. Eventually the motor will fail.
When the pump is installed in a manifold another potential problem may occur. The equalization line is important to
balance the liquid levels in the tank and the manifold. As stated above, the LPG cools the motor. Hence, some of
the warmth of the motor is transferred to the LPG. Through the internal by-pass approximately 20 liters/min. (5.2
gallon/min.) will be pumped back in to the manifold. If, for any reason, the equalization line does not operate well,
the liquid in the manifold can warm up. Consequently, the pressure in the manifold increases and, because of a
higher-pressure level in the manifold compared to the tank pressure, all the liquid can be forced back in the tank,
emptying the manifold. With the pump running, this is also a form of dry run.
Low-pressure/Dry-Run Protection Unit (LPG Run Box)
Red Jacket LPG pumps must be installed in accordance with the minimum requirements and it is to be
recommended to include in the installation a so-called Low-pressure/Dry-Run protection unit (preferably based on
pressure technology.) When installed according to the specifications, the pump will perform for many years.
When a pump fails it is mainly due to one of two events: cavitation or dry run. Veeder-Root does not warrant these
two failures. The LPG Run Box is a safety device available for the Red Jacket submersible LPG pump that is
designed to avoid cavitation and dry run of the unit.
The LPG Run Box is a differential pressure based system. When cavitation is about to occur, the pump cannot
build up differential pressure. Similarly, with a dry run the pump cannot build up pressure as well. Basically, the
LPG Run Box constantly receives pressure information of the total system and with this data it ‘chooses’ to stop or
start the pump. A pressure transmitter is needed to send this information to the LPG Run Box. A pressure
transmitter is thus a vital device of this system.
Since the LPG Run Box controls the pump, the LPG Run Box sends a signal to start the pump when a nozzle is
picked up. Immediately, the pressure in the discharge line is compared to the vapor (or rest) pressure. If the
differential pressure is greater than 100 kPa (14.7 psi) the system is OK. During operation, the LPG Run Box
continues to check the differential pressure. The differential pressure needs to be above 400 kPa (58.9 psi). If the
pressure falls below this given set point the LPG Run Box will turn the pump off. The pump is being protected from
low pressure and low liquid level/dry run (no differential pressure). The system automatically restarts, but if the
differential pressure continues to remain outside the working range, it stops and sounds an alarm.

16
Prior to Installing or Replacing LPG Pump or Motor
Read This Section before Proceeding
1. The Red Jacket submersible Liquefied Petroleum Gas (LPG) pump is designed to pump liquefied petroleum
gas in the liquid state. This includes butane and propane and any mix of butane and propane. The vapor
pressure of the liquid should not be more than 1380 kPa (200 psi) at 37.8°C (100°F). The density of the liquid
should be less than 0.6 kg/l (37.4 lb./ft3). Pumping fluids other than LPG will overload the motor and damage
the pump.
2. The pump should be installed according to local code regulations governing submersible LPG installations
and also for ease in servicing. The pump is earthed (grounded) through the column pipe or the conduit pipe.
The design of the mounting for the pumping unit shall be such as to prevent imposing any unacceptable loads
on the on the storage vessel. Such loads might be caused by the weight of the various parts and/or by the
forces due to operation of the pump including its starting and stopping but also by vibration. To minimize
vibration, all pipe workings need to be securely mounted.
3. If a manifold or pump well is used, the maximum flow velocity at any point in the suction line from the tank must
not exceed 1.0 m/sec. (3.3 ft./sec.). The equalization line must be of sufficient size to equalize the pressure of
the manifold and supply vessel. The bottom of the pump inlet is to be aligned with the top of the manifold’s
inlet opening.
4. Installing the submersible pump directly into the storage tank without a manifold is allowable only when
permitted by local regulations. In such installations, the clearance between the tank bottom and pump inlet
must be a minimum of 125 mm (5 inches). A sump directly underneath the pump may be used if the size is at
least DN200 (8 inches).
5. The pump is cooled and lubricated by the product being pumped. The required minimum differential pressure
of 400 kPa (58 psi) is to guarantee that during operation all stages are submerged in the LPG liquid. The
pump is designed to operate continuously or with an intermittent duty cycle, not to exceed 30 on/off cycles
per hour.
6. Never wire pump to operate at less than 400 kPa (58 psi) differential pressure.
7. These submersible motors contain internal on-winding thermal protectors that will automatically trip at 110°C
and reset at 52°C.
8. Red Jacket submersible LPG pumps are not designed to handle abrasive or foreign particles in the product
being pumped other than small parts of LPG dust or iron oxide, which can normally be found in LPG. Do not
use a pump inlet filter without written approval from Veeder-Root prior to its use. Installation of a strainer 0.1
mm (100 micron) in the inlet to the storage tank is recommended.
9. Red Jacket LPG pump-motor units are designed in accordance with European CENELEC and CEN
Standards and the European Directive 94/9/EC (ATEX) “Equipment for Potentially Explosive Atmospheres.”
(c1180 eII 2G Ex b c db IIA T4 Gb).
10. For maximum life, a submersible pump should not be run dry.
11. The ambient temperature is to be -20°C to +40°C.