Parker A4AP-DN Manual

1
Refrigerating Specialties Division
Description
All A4 type regulators are pilot operated using upstream
pressurefortheopeningforceandrequireaminimum2
psi (0.14 bar) pressure drop to fully open.
These valves are generally ordered with close coupled
upstream strainer to prevent entrance of foreign
material into the valve and the rest of the system.
Purpose:
These pneumatically compensated inlet pressure
regulators modulate the flow of refrigerant gas or liquid
to maintain a varying upstream (or inlet) pressure in
response to a pneumatic signal received from a
pneumatic controller. The regulator set-point will be
directly varied, on a 1:1 basis (A4AP) or 3:1 basis
(A4A3P), with value of the air pressure supplied to the
bonnet. Thus a pneumatically compensated regulator,
by responding to the varying output air signal from a
pneumatic controller, can change the evaporator
pressure and temperature up and down to match a
varying load condition. A 1 psi increase in air pressure
will increase the set point by 1 psi for the A4AP and 3
psi for the A4A3P. Generally, the pnuematic controller
modulates the air pressure from 3 to 15 psig throughout
its control range.
PNEUMATICALLY COMPENSATED
INLET PRESSURE REGULATORS
TYPE A4AP-DN, A4A3P-DN
Port Size 3/4"- 4" (20 - 100 mm)
For Ammonia, R22, R134a, R404a, R507
Other Refrigerants and Oils
FEATURES
• Pilot operated characterized Modulating Plug for
precise control
• Suitable for all common refrigerants and oils
•406psig(28bar)designpressure(PS)
• Flangesforthreadedorweldedsteelpipeandcopper
tube (copper not for ammonia)
• Unique modular construction
• Interchangeableparts
• Easy to service
• Close coupled strainers, optional
• StainlessSteelDiaphragm
• Manualopeningstem
• ComplieswithPressureEquipmentDirective97/23/EC
PressureRanges:
• A:0-150psig(0-10bar)Standard
• D:75-280psig(5-19bar)A4APonly
• V: 20 in. hg-120 psig (500 mm hg- 8.3 bar)
BULLETIN DN23-08B
Type A4AP-DN, A4A3P-DN
January 2007
Installation and Service Information
A4A3P-DN
Fig. 1 A4AP
ISO 9001 CERTIFIED
310216

2
Refrigerating Specialties Division
In addition to the standard "P" or "3P" version, other
regulatorvariationscan be combined alongwiththe
pneumaticvariationto perform more thanonecontrol
function. Forexample,A4ADP dual pressure regula-
tor has the ability to revert to a high pressure setting
via its high pressure pilot when the pilot solenoid is
de-energized. The fluid temperature range for the A4
Series of Regulators is -50F to 220F (-45C to 105C).
Important Note:
The control air supplied to the regulator must be
clean, dry and oil free. To avoid the possibility of rust
and of moisture from the compressed air freezing in
the bonnet or in other parts of the control system,
dehydrated air must be used whenever it may come
in contact with temperatures below freezing. For
applicationswhere temperaturesarebelow32F(0C),
the Type A4AR main valve with a remote pneumatic
pilot should be used. Thus the pilot can be located in
anonrefrigerated space, connectedto the mainvalve
by a pair of 3/8" (9 mm) pilot control lines.
Principles of Operation (See Fig.1)
The principles of operation are the same as the basic
A4A regulator except the set-point of the regulator is
compensated or re-adjusted by the pneumatic
pressure fed into the valve bonnet.
The inlet refrigerant pressure enters the space under
the diaphragm through passage N. When the force
created by the pressure exceeds the combined forces
of the pneumatic pressure in the bonnet and the
range spring force, the diaphragm is lifted off the pilot
seat allowing pressure to enter on top of the power
piston. This causes the power piston to move down-
ward forcing the modulating plug to open and modu-
late to maintain the varying set-point as dictated by
the pneumatic control pressure communicated to the
valve bonnet. An increase in refrigerant inlet pres-
sure, above the varying set-point pressure setting,
lifts the diaphragm further, allowing more pressure on
top of the power piston and opening the valve wider.
A decrease in inlet refrigerant pressure, below the
varying set-point pressure setting, causes the dia-
phragm to move closer to the pilot seat reducing the
pressure on the top of the power piston and causing
the closing spring to reduce the valve opening. The
pressure on top of the power piston is controlled by
the flow through the pilot seat and the bleed off
through the bleed hole in the power piston and
through the clearance between the piston and body
bore. A minimum of 2 psi (0.14 bar) pressure differ-
ence across the valve is required to open fully.
The A4AP/A4A3P Pressure Regulator therefore
opens on a rise in the inlet pressure above the set-
point and closes on a drop in inlet pressure below the
set-point. The inlet pressure is not appreciably affected
by variations in the outlet pressure.
ManualOpeningStem:
All Type A4A Regulators are provided with a manual
opening stem. To open the regulator manually, back
the stem out (turn counter-clockwise) until it stops.
To put the regulator into automatic operation, turn the
stem in (clockwise) until only the flats on the stem
protrude from the packing nut.
Adjustment
Adjust the controller according to the manufacturers
instructions and set it for the desired sensitivity. This
sensitivity setting depends on the amount of regulator
inlet pressure change necessary to counteract the
load change to keep the temperature at the thermo-
stat within the desired limits.
To adjust the pressure regulator, disconnect the air
line and proceed as follows: Install an accurate
pressure gauge in the gauge port. Back the pressure
adjusting stem out to its stop (counter clockwise).
This will reduce the set-point to its lowest level and
cause the valve to open wide. Start the system, and
when suction pressure is about the desired pressure,
Fig. 2 A4A3P

3
Refrigerating Specialties Division
turn the adjusting stem in (clockwise) until the pres-
sure gauge shows a slight rise in the inlet pressure.
At this point the adjusting stem may be turned in to
raise the pressure further, or backed out to lower it:
but the final adjustment should be made after the
system has been operating for a period of time. This
setting, without air pressure to the bonnet, represents
the lowest inlet pressure the regulator will allow, thus
providing a low limit feature. Connect the air line.
From this point, the inlet pressure will be increased 1
psi for every 1 psi pressure increase the controller
applies to the top of the diaphragm (A4AP). In the
case of the A4A3P, the inlet pressure will be in-
creased 3 psi for every 1 psi pressure increase the
controller applies to the top of the diaphragm. The
A4A3P is available in Range A and V only. The
A4AP is available in Range A, V and D.
Installation
All regulators are packed for maximum protection.
Unpack carefully, check the carton to make sure all
flanges and other items are unpacked. Save the
enclosed instructions for the installer and eventual
user.
Do not remove the protective coverings from the inlet
and outlet of the regulator until the regulator is ready
to be installed. Protect the inside of the regulator
from moisture, dirt and chips before and during
installation. When welded or brazed flange connec-
tions are used, all slag, scale and loose particles
should be removed from the flange interior before the
regulator is installed between the flanges. It is
advisable to install a close-coupled companion
strainer (RSF) at the inlet of the regulator to help
protect it from any foreign material in the system.
The A4A series of regulators will give optimum
performance if mounted in a horizontal line in a
vertical position with the manual opening stem on
bottom. Where other positions are desired, the
factory should be consulted: please give application
and piping details. The regulator must be installed
with the arrow on the valve body pointing in the
direction of the fluid flow for the regulator to function
properly. Backward flow through the regulator is
uncontrolled and will vary with valve model and the
reverse pressure drop encountered. The regulator is
not a check valve.
Tighten the flange bolts and nuts evenly to provide
proper seating of the flange gasket and to avoid
damage to gaskets or flanges. (See Bolt Torque
Table). Avoid using the regulator flange bolts to
stretch or align pipe. Even the heavy duty body of an
A4A can be distorted, causing the precision parts to
bind.
The regulator should be installed in a location where it
is easily accessible for adjustment and maintenance.
The location should be such that the regulator can not
be easily damaged by material handling equipment.
When it is necessary to insulate the regulator (and
companion strainer), the insulation should be installed
to provide access to the regulator (and companion
strainer) for adjustment and maintenance. Do not
insulate the solenoid coil and coil housing. Proper
indicating gauges should be installed to be easily
visible to the operating engineer for system checking
and adjusting purposes.
Disassembly and Assembly
Before disassembling any A4A type regulator, read
the information in this bulletin and Bulletin RSBCV,
SafetyProceduresforRefrigeratingSpecialties
DivisionRefrigerationControlValves.
Before a regulator is removed from the line or disas-
sembled in the line, make sure that all refrigerant has
been removed from the regulator, including the
bonnet, where applicable, and the close-coupled
strainer. The regulator must be isolated from the rest
of the system in a safe manner. When pumping
down to remove the refrigerant, the manual opening
stem 33A must be turned out (counter clockwise) to
make sure the valve is open.
All A4A Regulators
General Procedure
The construction of the regulator and the method of
disassembly are relatively simple, but some proce-
dures must be followed to avoid damage. The
following describes the procedure for the basic A4A .
Disassembly - Take care when removing Seal Caps
1 and 44 in case some refrigerant may be trapped
inside. Back the Adjusting Stem 6 all the way out to
remove any compression on Range Spring 13
otherwise damage to Diaphragm 17 or Pilot Seat 18
may occur. Disconnect air lines before removing
bonnet. Remove Bonnet 8 by carefully removing Cap
Screws 11. Take care not to damage Diaphragm
Follower 15. Remove Adapter 28 by removing Cap
Screws 31. Turn the Manual Opening Stem 33A all
the way in until the flats on the stem barely protrude
from the stuffing box nut. Push Piston 30 down
against the spring force. The piston should move
freely down and be returned by the spring force. If
the piston is jammed or sticky, remove Bottom Cap
Assembly, which includes Items 33 through 42, by
removing Cap Screws 39 or unscrewing Bottom Cap,
3/4" through 1-1/4" (20mm through 32mm). Using a
hard wood dowel rod inserted through the bottom of
the valve, tap the piston upward and out. Thoroughly
clean all parts. If jamming has taken place and the
piston and bore are scored, remove all burrs by

4
Refrigerating Specialties Division
polishingthepiston,boreandmodulatingplugwith
fine crocus cloth. Inspect the seating area of the
Modulating Plug 33 for damage or erosion. If dam-
aged it should be replaced. It would be advisable to
replace the entire bottom cap assembly. Inspect all
gaskets and “o” rings for damage and replace where
necessary.
Assembly - When reassembling the valve, all internal
parts should be clean, dry and lightly oiled with
refrigerant oil, except “o” rings. Apply silicone grease
to the “o” rings. Care must be taken especially when
the parts are cold since moisture can condense on
parts and cause rapid rusting. When replacing
gaskets, they should be oiled very lightly with refriger-
ant oil before assembly. Items which require several
bolts to fasten must be tightened uniformly to provide
proper alignment and seating. (See Bolt Torque
Table). Install bottom cap assembly first and tighten in
place. Carefully replace the piston; never try to force
it in place. Align the Adapter Gasket 29 carefully with
the proper holes in the adapter and the valve body
and fasten adapter in place. Before assembling the
bonnet be sure the adjusting Stem 6 is turned all the
way out. Place Gasket 19, Diaphragms 17 and
Gasket 16 in Adapter 28. The raised center of the
diaphragm must be towards the bonnet. Stack
Diaphragm Follower 15, Lower Spring Rest 14,
Spring 13 and Upper Spring Rest 12 on top of
diaphragm and carefully lower bonnet in place and
tighten Screws 11 in place. Tighten Cap Screws 11
evenly. The ideal tightening torque is 11 ft. lbs. (1.5
kg-m). Valve is now ready to be adjusted for normal
operation.
If close coupled strainer is used, it may be cleaned
before putting the valve back in operation. The
regulator must be tested for leaks with refrigerant gas
or other appropriate gas before the system is put into
operation.
After the General Procedure for disassembly, inspect
the Pilot Seat 18 top seating surface for dirt, wear or
damage. Remove seat from valve body and clean,
lap on a flat plate or replace as necessary. Examine
the diaphragm region which contacts the seat sur-
face, look for dirt, heavy scratches or corrosion. If the
diaphragm cannot be easily wiped clean, it should be
replaced. Reassemble the regulator following the
General Procedure.
Maintenance and Service
GeneralProcedure:
Dirt in the system is the greatest single cause of
regulator malfunction. All screens or filters must be
cleaned or replaced when they become dirty. At start
up it is especially important that these items are
cleaned or changed frequently. Cotton bags are
available for 1" - 4" (25mm-100mm) Type RSF
Strainer to improve their ability to remove dirt during
start-up. When the RSF close-coupled companion
strainers are used, maintain according to instruction
in Bulletin DN00-10. Moisture in halocarbon systems
in particular can cause corrosion or form ice, causing
the piston to freeze in position. Filter-driers should be
used and maintained for halocarbon systems.
Before deciding to disassemble a regulator for
servicing, the following investigations should be
made:
Check the manual opening stem; it should be turned
in for automatic operation.
Check the regulator setting to make sure it is properly
adjusted. Turn adjusting screw slowly to see if
regulator responds. Check regulator pressure range;
if wrong, range spring must be replaced.
Check other system components for proper opera-
tion.
Check hand valves in the system to make sure they
are open or closed as required and the system is
receiving liquid or gas as the case may be.
Before disassembly of regulator, make certain that all
refrigerant has been removed (pumped out) from the
regulator and its companion strainer where one is
used. Read Safety Bulletin RSBCV.
Safe Operation (See also Bulletin RSBCV)
People doing any work on a refrigeration
system must be qualified and completely
familiar with the system and the Refrigerat-
ing Specialties Division valves involved, or
all other precautions will be meaningless.
This includes reading and understanding
pertinent Refrigerating Specialties Division
Product Bulletins and Safety Bulletin
RSBCV prior to installation or servicing
work.
Where cold refrigerant liquid lines are used, it is
necessary that certain precautions be taken to avoid
damage which could result from liquid expansion.
Temperature increase in a piping section will cause
high pressure due to the expanding liquid which can
possibly rupture a gasket, pipe or valve. All hand

5
Refrigerating Specialties Division
valves isolating such sections should be marked,
warning against accidental closing, and must not be
closed until the liquid is removed. Check valves
must never be installed upstream of solenoid valves,
or regulators with electric shut-off, nor should hand
valves upstream of solenoid valves or downstream of
check valves be closed until the liquid has been
removed. It is advisable to properly install relief
devices in any section where liquid expansion could
take place.
Avoidallpipingor control arrangements which might
producethermalorpressureshock.
Forthe protection ofpeople and products,all refriger-
ant must be removed from the section to be worked
on before a valve, strainer, or other device is opened
orremoved.
Flanges with ODS connections are not suitable for
ammoniaservice.
SYMPTOM PROBABLE REASON CORRECTION
Regulator does not
shut off flow Diaphragm or seat dirty, damaged or frozen Clean or replace. Clean strainer
Diaphragm follower stuck or damaged Clean or replace. Install follower
carefully
Piston jammed with excess dirt Remove and polish piston and bore
with crocus cloth. Clean valve and
strainer
Modulating plug leaking due to excess
dirt or damaged Clean or replace. If used on liquid, check for erosion due to excessive
flash gas by subcooling or by reducing
pressure drop across valve by providing
restriction at valve outlet.
Regulator does not
open Pressure Regulator Diaphragm ruptured or badly deformed Replace. Make sure 2 diaphragms are installed.
Diaphragm follower stuck, damaged or
frozen Clean or replace. Install follower carefully
Piston worn, too much clearance Replace piston. Check for reason. If
used or liquid, check for flash gas.
Regulator Operation
erratic Diaphragm or seat dirty, damaged. Clean or replace. Clean strainer
Diaphragm follower has dirt on the
outside diameter or outside diameter is
damaged.
Clean or replace
Regulator too far oversized. Check load. Replace with smaller
regulator or investigate use of Reduced
Capacity Plug Kit.
Pressure drop across
regulator too high Inlet or outlet restricted Check for restriction. Clean strainer.
Regulator too small Replace with proper size regulator
Large amount of flash gas in liquid line Reduce flash gas by subcooling.
Reduce line restriction by increasing
line size, particularly at the regulator
outlet. Replace with larger regulator.
High pressure drop causes high rate of
expansion of gas at regulator outlet Increase pipe size at the outlet of the regulator
Regulator does not open all the way. Check piston for wear. Replace, if
needed.

6
Refrigerating Specialties Division
Item Description
1 Seal Cap
2 Gasket, Seal Cap
3 Nut, Stuffing Box
4 Packing Ring
5 Packing Washer
6 Adjusting Stem
8 Bonnet
9 Nameplate
10 Screw, Name Plate
11 Screw, Bonnet
12 Spring Rest, Upper
13 Spring, Range
14 Spring Rest, Lower
15 Diaphragm Follower
16 Gasket, Bonnet
17 Diaphragm
18 Seat, Pilot
19 Gasket, Adapter
27 Gauge Port Pipe Plug
28 Adapter, Body
29 Gasket, Body
30 Piston-Stem
31 Screw, Body
32 Body
33 Throttling Plug Asm
34 Spring, Closing
35 Dirt Wiper Retainer
36 Dirt Wiper
37 Seal, Bottom Cap
38 Bottom Cap
39 Screw, Bottom Cap
40 Packing Washer
41 Packing Ring
42 Stuffing Box Nut
43 Gasket, Seal Cap
44 Seal Cap
45 Gasket, Flange
46 Bolt, Flange
47 Nut, Flange
67 Bonnet Gasket
68 Diaphragm
69 Diaphragm Actuator Upper
70 O-Ring
71 Diaphragm Actuator Lower
72 Gasket, Adapter
73 Adapter, 3P
74 Gasket, 3P
75 Diaphragm
A4A3P Fig. 3
For replacement parts and prices, consult
PARTS KITS LIST PRICE SCHEDULE INDUSTRIAL
AND FLO-CON (PK)

7
Refrigerating Specialties Division
Warranty
AllRefrigeratingSpecialtiesproductsarewarranted
against defects in workmanship and materials for a
period of one year from date of shipment from originat-
ing factory. This warranty is in force only when prod-
ucts are properly installed, field assembled, maintained,
and operated in use and service as specifically stated
inRefrigeratingSpecialties Catalogs or Bulletins for
normalrefrigerationapplications,unlessotherwise
approvedinwritingbyRefrigeratingSpecialtiesCom-
pany. Defective products, or parts thereof returned to
thefactorywithtransportationchargesprepaidand
found to be defective by factory inspection will be
replacedorrepairedatRefrigeratingSpecialtiesoption,
free of charge F.O.B. factory. Warranty does not cover
productswhichhavebeen altered, or repaired inthe
field; damaged in transit, accidents, misuse, or abuse.
Products disabled by dirt or other foreign substances
will not be considered defective.
The express warranty above constitutes the only
warranty of Refrigerating Specialties products, and is in
lieu of all other warranties, expressed or implied, written
ororal, including any warranty ofmerchantabilityor
warranty of fitness for a particular purpose and in no
eventis Refrigerating Specialties responsiblefor any
consequentialdamagesofanynaturewhatsoever. No
employee,agent, dealer or other personis authorized to
giveanywarrantiesonbehalfofRefrigeratingSpecial-
ties nor to assume for Refrigerating Specialties any
other liability in connection with any of its products.
PRESSURE CONTAINING COMPONENTS A4A DN LINE: 3/4" & 1"
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, A4A DN ASTM A-126 CLASS B 6.2
ADAPTER, A4A DN ASTM A-126 CLASS B &
COVER BOTTOM, A4A/S4A BARSTOCK ASTM 1213 CR 8.6
BONNET A4W ASTM A-126 CLASS B
BODY,S6A (REGULAR M ATL) DUCTILE IRON ASTM A536
TUBE SOLENOID, S6 SS TUBING 304
SLEEVE, SOLENOID TUBE AISI 1117 CRS BARSTOCK
BODY, A2D DN ASTM A-126 CLASS B
PRESSURE CONTAINING COMPONENTS A4A DN LINE: 1-1/4 TO 4
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, A4A DN DUCTILE IRON GGG 40.3 15 0.57 L
ADAPTER, A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM, A4A/S4A BARSTOCK ASTM 1213 CRS
BONNET A4W DUCTILE IRON GGG 40.6
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, 2 A4A DN DUCTILE IRON GGG 40.3 28.6 1.61 L
ADAPTER, 2 A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM, A4A/S4A 1-5/8 to 2-1/2 DUCTILE IRON GGG 40.3
BONNET A4W DUCTILE IRON GGG 40.3
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, 2 A4A DN DUCTILE IRON GGG 40.3 42.4 1.61 L
ADAPTER, 2 A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM, A4A/S4A 1-5/8 to 2-1/2 DUCTILE IRON GGG 40.3
BONNET A4W DUCTILE IRON GGG 40.3
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, 2-1/2 A4A DN DUCTILE IRON GGG 40.3 60 3.19 L
ADAPTER, 3 A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM, 3 A4A/S4A DUCTILE IRON GGG 40.3
BONNET A4W DUCTILE IRON GGG 40.3
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, 3 A4A DN DUCTILE IRON GGG 40.3 86 3.91 L
ADAPTER, 3 A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM, 3 A4A/S4A DUCTILE IRON GGG 40.4
BONNET A4W DUCTILE IRON GGG 40.3
COMPONENT DESCRIPTION MATERIAL Kv VOLUME
BODY, 4 A4A DN DUCTILE IRON GGG 40.3 116 6.5 L
ADAPTER, 4 A4A DN DUCTILE IRON GGG 40.3
COVER BOTTOM,4 A4A/S4A DUCTILE IRON GGG 40.4
BONNET A4W DUCTILE IRON GGG 40.3
75 MM
1-1/4 IN
1-5/8 IN
2 IN
2-1/2 IN
3/4 & 1IN
20 & 25
MM
100 MM
3 IN
4 IN
32 MM
40 MM
50 MM
65 MM

8
Refrigerating Specialties Division
BOLT TORQUE TABLE
ITEM PORT SIZE TORQUE
7/16" Flange Bolt 1/2" 28 ft lb
5/8" Flange Bolt 3/4" - 2" 85 ft lb
3/4" Flange Bolt 2-1/2" - 3" 105 ft lb
7/8" Flange Bolt 4" 150 ft lb
5/16"-18 Bonnet Bolt 3/4" - 4" 15ft lb
5/16"-18 Adapter Bolt 3/4" - 2" 15ft lb
5/8"-11 Adapter Bolt 3" - 4" 75 ft lb
Bottom Cap 3/4"- 1-1/4" 150 ft lb
1/2"-13 Bottom Cap Bolt 1-5/8" - 2-1/2" 50 ft lb
5/8"-11 Bottom Cap Bolt 3"-4" 75 ft lb
A4AP
A4A3P
A
G
C
D
H
J
Add for Strainer
F
E
Weld Neck
Flange
ODS
Flange
FPT
SW
OVERALLVALVEDIMENSIONS
Port Size 20mm & 25mm 32mm 40mm&50mm 65mm 75mm 100mm
(3/4 & 1") (1-1/4") (1-5/8 & 2") (2-1/2") (3") (4")
DIMENSION mm inches mm inches mm inches mm inches mm inches mm inches
AA4P, A4L 392 15.4 410 15.6 464 16.2 483 19.0 597 23.5 653 25.7
A43P 414 16.3 432 17.0 485 19.1 505 19.9 620 24.4 676 26.6
C164 6.2 203 8.0 251 9.9 252 9.9 311 12.2 359 14.1
GA4P, A4L 244 9.6 248 9.8 287 11.3 302 11.9 324 12.8 361 14.2
A43P 266 10.5 270 10.7 308 12.2 324 12.8 347 13.7 384 15.1
H117 4.6 117 4.6 140 5.5 159 6.2 176 7.0 222 8.8
J98 3.9 178 7.0 251 9.9 314 12.4 314 12.4 363 14.3
OVERALL LENGTH DIMENSIONSWITH FLANGES
*Add 13mm (0.5") to D,E & F Dimensions for A4LVariation
FPT & SW 3/4" 216 8.5 1-1/4" 256 10.1 1-1/2" 307 12.1
D* FORPIPE 1" 216 8.5 1-1/2" 256 10.1 2" 307 12.1 2-1/2" 331 13.0 3" 389 15.3 4" 450 17.7
SIZES 1-1/4" 216 8.5
WN FOR 3/4" 254 10.0 1-1/4" 300 11.8 1-1/2" 364 14.3
E* FORPIPE 1" 261 10.3 1-1/2" 304 12.0 2" 371 14.6 2-1/2" 401 15.8 3" 478 18.8 4" 571 22.5
SIZES 1-1/4" 261 10.3
ODS FOR 7/8" 239 9.4 1-3/8" 269 10.6 1-5/8" 358 14.1 2-5/8" 348 13.7 3-1/8" 414 16.3
F* TUBE 1-1/8" 239 9.4 1-5/8" 279 11.0 2-1/8" 338 13.3 4-1/8" 503 19.8
SIZES 1-3/8" 231 9.1 2-1/8" 305 12.0 2-5/8" 358 14.1 3-1/8" 389 15.3 3-5/8" 432 17.0
1-5/8" 239 9.4
Parker Hannifin Corporation • Refrigerating Specialties Division
2445 South 25th Avenue • Broadview, IL 60155-3891
Telephone [phone]• Fax [phone]