JETStream 53905 Instruction sheet

Read these instructions thoroughly before installing, connecting, or using the 40K
MULTI-MODE VALVE. If any questions remain, call JETSTREAM at [phone]
or [phone]. Also read the yellow JETSTREAM SAFETY WARNING pamphlet
included with the shipment of your new 40K MULTI-MODE VALVE and reproduced
inside this publication. This product is sold with the understanding that the
purchaser agrees to thoroughly train all operators and maintenance personnel in
the correct and safe installation, operation and maintenance of the product and to
provide adequate supervision of personnel at all times. Retain these instructions
for future reference. If this product is resold or otherwise conveyed, purchaser
must pass on the instructions to the new user.
PRODUCT INSTRUCTIONS
40K Multi-Mode Valve (PN 53905/54695)
PI-121
The 40,000 psi Multi-Mode ValveTM is a combination air-actuated control
valve and air-flow regulator. It is to be used in conjunction with the
Jetstream Tornado Gun. The Multi-Mode Valve also controls the quality
and flow of air into the gun’s air motor. This tool utilizes a self-contained,
easily-removable cartridge that includes all necessary parts to overhaul
the control valve. The cartridge can be easily replaced in the field within
one minute. The 40K Multi-Mode Valve is rated for operation at 40,000
psi maximum working pressure.

2PI-121 January 2020
Table of Contents
Section 1: Safety ...........................................................................3
Section 2: Product Description ....................................................12
Section 3: Preparation for Use .....................................................16
Section 4: Setup ..........................................................................19
Section 5: Operation ....................................................................21
Section 6: Service........................................................................26
Section 7: Troubleshooting ...........................................................32
Appendix A ..................................................................................38
Exploded View .............................................................................38
Replacement Parts.......................................................................40
Cartridge (PN 54014) ...................................................................40
Related Items ..............................................................................40
Appendix B ..................................................................................41
Accessories .................................................................................41
Flow Charts .................................................................................42
Warranty......................................................................................44

3PI-121January 2020
Section 1: Safety
This information was prepared to aid in the identification of potentially
unsafe conditions when using high pressure waterblast equipment. It
should be noted that other potential hazards may exist which might have
not been mentioned in this brochure.
In all cases, JETSTREAM products are sold with the understanding that
the purchaser agrees to thoroughly train all operating and maintenance
personnel in the correct and safe installation, operation of maintenance of
waterblast equipment and to provide adequate supervision of personnel
at all times.
Read the following in its entirety before connecting, operating or repair-
ing equipment. Purchasers and operators also should be familiar with
the current version of the “Industry Best Practices for the Use of High
Pressure Waterjetting Equipment” published by the Waterjet Technology
Association, as well as any applicable OSHA regulations, standards and
guidelines.
Should any questions arise concerning safe and proper procedure,
contact JETSTREAM prior to the installation or use at [phone] or
[phone].
Incorrect Use of High Pressure Waterblast
Equipment May Cause Serious Injury
Read these instructions in their entirety
before using any JETSTREAM products.

4PI-121 January 2020
GENERAL WATERBLAST
1. Use only clear, clean water in high pressure system.
2. Place barricades with warning signs or barricade tape around work
area.
3. Outfit all operators with Personal Protective Equipment (PPE). Hard hat
with plastic face shield, rainsuit, non-skid knee boots with metatarsal
protection, gloves, ear protection and body armor rated for operating
pressures are considered minimum safety equipment. Proper respiratory
protection is required where dangerous fumes or dust is present or
created by the waterblasting operation. Follow applicable OSHA
regulations, standards and guidelines regarding the use of respiratory
protection if harmful fumes or dust is present during, or created by the
waterblasting operation
4. Use products intended for high pressure waterblasting only.
5. No product should be altered without written consent of the
manufacturer.
6. Read and follow all manufacturer’s instructions prior to using any
waterblast product. Contact manufacturer.
7. Thoroughly review alternative methods before initiating any potentially
dangerous waterblasting operation. Fully automated, semi-automated,
and/or mechanized methods should all be considered first. Contact the
applicable waterblasting manufacturers for assistance and recommenda-
tions.
8. The operator handling the cleaning device (with nozzle) must always
have control of water pressure. A surface cleaning operator should
operate a trigger style control gun capable of instantaneously stopping
pressure to nozzle. A tube cleaning lance operator should operate a foot
gun capable of instantaneously stopping pressure to the lance.
9. Inspect the condition of all components prior to use. Use no items
which are in questionable condition.
10. Check the condition of thread connections prior to the make-up of any
high pressure connection. Use Teflon tape and anti-seize on male pipe
(NPT) thread for sealing purposes. Do not let tape overlap the male pipe
thread end. Tape fragments may enter system water stream and clog
nozzle’s orifices.
Do Not use a component with missing or damaged threads on the
high pressure connections.

5PI-121January 2020
Use wrench flats (when available) or a properly adjusted
smooth jaw plier wrench (JS PN 64119) for tightening components.
Avoid using pipe wrench as wrench marks will cause high pressure
components to crack and fail.
11. All high pressure hose connections require a hose restraint (whip
check), including connection at fluid end discharge.
12. Before attaching a nozzle to the control gun or tube cleaning lance,
operate the pump at low speed to purge dirt and debris from system.
Dirt and debris can clog nozzle orifice(s) and cause excessive
system pressure which could lead to a lance failure.
13. With nozzle installed, operate the pump at a low speed (low
pressure) for test. Should system repairs or adjustments be necessary,
stop pump and relieve all pressure before making required repairs or
adjustments. The pump operator should watch the nozzle operator at all
times in case any difficulty arises and it becomes necessary to depressur-
ize system. If the pump operator does not have a clear line of sight to the
nozzle operator, it may be necessary to have another employee available
to communicate between the nozzle and pump operators.
14. With the system operating properly, increase pump speed slowly
until operating pressure is reached and adjusted. Pressure adjust-
ments should always be made slowly. The nozzle operator shall be
warned before any pressure adjustment is made by the pump operator.
A sudden change in reaction force may cause the nozzle operator to lose
balance.
15. Use minimum pressure required for cleaning. Do not exceed the
operating pressure of the system’s lowest pressure-rated component.
All equipment pressure rating markers and warning tags should be left
intact.
16. Waterblast operators must be made aware that the cleaning nozzle’s
discharge jets(s) can inflict serious body wounds. Supervisors should
demonstrate the potential danger of discharge jet(s) by showing all new
operators the effect of a waterjet by cutting a scrap piece of wood such
as a 2” x 4”.
17. If equipment malfunctions or a system malfunction is suspected,
immediately stop cleaning activity and relieve the pressure in the system
before attempting any repairs. Always follow the manufacturer’s repair
instructions.

6PI-121 January 2020
18. Only trained persons should be authorized to perform any mainte-
nance or repair.
19. Following any repairs, the system should be operated at low pressure
for test. Bring equipment up to operating pressure slowly.
20. For shutdown in freezing conditions, even for brief periods, drain
water from all components. Prior to starting operations in freezing
conditions, the operation of all equipment components must be checked
carefully to make sure components are not frozen and can be operated.
21. Store components properly by protecting them from damage when
not in use. Be sure all safety warning tags and markers remain intact.
CONTROL GUNS AND DEVICES
1. Read General Safety section before connecting or using control guns
or control devices.
2. Thoroughly review alternative methods before initiating any potentially
dangerous shotgunning or hand lancing operation. Fully automated,
semi-automated, and/or mechanized methods should all be considered
first. Contact the applicable waterblasting manufacturers for assistance
and recommendations.
As described in the Industry Best Practices for the Use
of High Pressure Waterblasting Equipment published by the Waterjet
Technology Association, the standard shotgun barrel length shall be a
minimum length of 48” to minimize the risk of nozzle discharge
accidentally striking the operator’s feet, legs, or body. See Section
11.10.6. The WJTA has recognized that deviations or variances from
these best practices may be acceptable under certain circumstances.
See Section 2.7. If users believe deviation from this 48” standard is ac-
ceptable, they should follow procedures outlined in Section 2.7 to
minimize risk to the operator. Among other things, users should ensure
that other measures to perform the work have been considered and
exhausted, senior safety management and customers have considered
and approved the deviation, operators have been properly trained and
warned about any increased risk associated with the deviation, and
operators are wearing all appropriate PPE, including body armor rated for
the operating pressure.

7PI-121January 2020
3. Prior to use, thoroughly check control gun or control device for smooth
and proper operation. Control guns and control devices should also be
checked for proper operation before each operating shift. Do not use
any control gun or control device that has not been checked before your
operating shift.
4. A control gun operator using a hand-held gun should position and
brace his body for the gun’s rearward reaction force before depressing
gun trigger. Gun’s rearward reaction should be a maximum force of 40 to
50 lbs. (or 1/3 body weight of operator.) The control gun operator should
maintain firm, solid footing to counter gun’s rearward reaction.
5. The use of a Safety Shroud and a Safety Whip Hose with handheld
control guns is strongly recommended for additional operator protec-
tion against a burst occurring in the high pressure hose connected to the
gun. Use of Hand Grip and Shoulder Stock in hand-held control guns will
provide greater operator comfort and safety.
6. Fall protection should be provided when blasting on scaffolding or
sloping surface per OSHA guidelines. Do not operate a hand-held gun
while standing on slippery surfaces.
7. The control gun operator should always start blasting with a low
system pressure and slowly increase blasting pressure. Depress and
release control gun trigger/pedal several times at operating pressure to
check the control gun’s operation before starting cleaning operations.
8. A dump type control gun should always open fully and reduce the
system pressure to near zero immediately when its trigger/pedal is
released. If this type of control gun does not relieve system pressure
immediately or system pressure does not fall below 200 psi when trigger/
pedal is released, do not use the control gun.
9. The control gun operator should never pass a control gun to another
operator without first stopping the pump and water flow to the control
gun. Passing off a control gun without first stopping system waterflow is
dangerous because of possible accidental trigger actuation.
10. Do not use a control gun or control device that has malfunctioned or
you suspect malfunctioned without having it repaired and/or thoroughly
checked for proper operation by a qualified high pressure maintenance
mechanic or your supervisor.
11. Do not use a control gun that does not have a trigger guard.
12. Never tie, wedge or clamp a control gun’s trigger in the closed
position.

8PI-121 January 2020
13. All electric throttle control cords should be rated for wet conditions.
All cord connections and switches should be kept out of water.
14. Any hose used for transporting dump water back to pump should
have a large enough diameter and short enough length so that potentially
dangerous back pressure is kept low. Protect hose from traffic.
15. Hand-operated control guns should never be used as foot-operated
devices.
PRESSURE RELIEF DEVICES
1. Read General Safety section prior to installing Relief Valve and/or
Pressure Relief Devices.
2. A waterblast system should include both primary and secondary
pressure relief protection:
A. For primary protection a primary rupture disc assembly or spring-
loaded relief set at 1.2 times, maximum operating pressure is
recommended (i.e. relief valve is set at 12,000 psi if maximum
operating pressure is 10,000 psi)
B. For secondary protection a rupture disc assembly containing a
manufacturer’s approved disc having a burst rating of 1.4 times
maximum operating pressure is recommended.
Only use a rupture disc holder which will NOT permit the
use of coins or other objects in place of discs.
3. Relief devices should never be mounted so the discharge could strike
personnel.
4. Never install a shut-off valve between the pump and relief device.
5. “Set pressure” must be prominently displayed on all relief devices.
Never install or use a relief device unless its “set pressure” is known.
6. Do not attempt to correct a leaking relief valve by increasing spring
tension as this will increase its set pressure.
7. Do not use a pressure relief valve as a combination relief and throttling
device.
8. Keep relief valve dry during freezing conditions.
NOTE: Pressure relief devices are imperative for the protection of both
operator and equipment from dangerous over-pressurization.

9PI-121January 2020
HIGH PRESSURE HOSE
1. Read General Safety section prior to connecting high pressure hose.
2. Do not use a high pressure hose with a burst rating less that 2.5 time
the pressure at which it will operate. 40,000 psi operating pressure high
pressure must have a minimum 100,000 psi burst rating.
3. Do not use a high pressure hose that has an unknown burst rating or
manufacturer’s operating pressure rating.
4. Use of a Safety Shroud is strongly recommended for added safety
where hose connects to control gun.
5. Use of hose restraint (whip check) is required at all hose connections,
including connections at fluid end.
6. Always apply wrench to wrench flats when making threaded
connections. Do not apply wrench on the end fitting ferrule (collar).
7. Remove hose from service if:
A. Cover is damaged and reinforcing wires are exposed to rust and
corrosion;
B. Cover is loose, has blisters or bulges;
C. Hose has been crushed or kinked;
D. End fitting shows evidence of damage, slippage, or leakage.
E. Hose has been exposed to pressures greater than 50% of burst
rating; or
F. Hose is three or more years old, regardless of condition.
8. Disconnect, drain, coil and store hose properly after use.
9. Never attempt to repair or recouple high pressure hoses in field. High
pressure hose end fittings are the permanently crimped type and can only
be properly installed with hydraulic crimping equipment.
NOZZLES
1. Read General Safety section.
2. Nozzle flow ratings must be compatible with pump discharge and
pump pressure rating. (See Nozzle Flow Rating Chart on page 42.)
3. Use only nozzles with a manufacturer’s pressure rating of at least the
operating pressure or a burst rating or no less than 3.0 times the desired
operating pressure.
4. Prior to installation, make sure the nozzle has no clogged orifices.
5. Apply anti-gall compound to the nozzle threads. DO NOT use Teflon
tape. Check blast nozzle size before installing the nozzle. Make sure the
nozzle orifices are not too small in order to prevent excessive system
pressure when the gun’s control valve trigger/pedal is depressed.

10 PI-121 January 2020
6. Use wrench flats (when available) or a properly adjusted
smooth jaw plier wrench (JS PN 64119) to tighten nozzle. Avoid using
pipe wrench as wrench marks will cause nozzles to crack and fail.
7. Blocked orifice(s) can cause excessive system pressure and failure. If
orifice(s) appear clogged or partially blocked with dirt or debris, remove
nozzle from MagJet and clean immediately.
8. Remove nozzle from service if:
A. Nozzle is split or damaged;
B. Nozzle sidewall is worn by more than 25% at any point;
C. Nozzle’s ability to hold pressure is questionable
D. Threads are missing or damaged
HIGH PRESSURE FITTINGS
1. Read General Safety section prior to installing fittings in system.
2. Use non-brass or non-cast iron fittings which are made for high
pressure waterblast use.
3. Use only high pressure fittings which are clearly marked with the
operating pressure.
4. High pressure fittings should have a known burst rating of not less than
3.0 times system operating pressure. Never use a damaged or corroded
fitting or one with damaged or missing threads.
5. Use only high pressure rated fittings and hose in the waterblast
system. For 40,000 psi waterblast service all fittings and hose should
have a minimum burst rating of 100,000 psi.
6. Use wrench flats (when available) or a properly adjusted smooth jaw
plier wrench (JS PN 64119) to tighten fittings. Avoid using pipe wrench as
wrench marks will cause high pressure fittings to crack and fail.
REPLACEMENT PARTS
1. Read General Safety section prior to repairing equipment and
installing replacement parts.
2. Only trained persons should be authorized to perform maintenance or
repairs to equipment.
3. Read and follow all manufacturer’s repair instructions. All tool, torque,
clearance and lubrication recommendations should be followed.
4. During replacement of any part, inspect mating part for wear and
replace if necessary.
5. Do not attempt to install or use a part whose dimensions, clearances,
function or use are suspect.

11PI-121January 2020
6. Test repaired equipment carefully and thoroughly before putting it into
service. Do not put any piece of repaired equipment into service if its
performance is questionable. If repaired equipment performance is
questionable, call manufacturer of repair parts for assistance.
This section concludes all the same information included in the yellow
JETSTREAM SAFETY WARNING pamphlet (PI-082).

12 PI-121 January 2020
Section 2: Product Description
The 40,000 psi Multi-Mode ValveTM is a combination air-actuated control
valve and air-flow regulator. It is to be used in conjunction with the
Jetstream Tornado Gun. The Multi-Mode Valve can be configured three
ways: Dump Mode, Shut-In Mode, and Constant Pressure Mode. (Refer to
the Product Configuration section for specific details on each configura-
tion).
The Multi-Mode Valve also controls the quality and flow of air into the
gun’s air motor. This valve can be used with other manufacturer’s rotary
blast guns and used in multiple gun operations by configuring the valves
for Constant Pressure or Shut-In Mode.
The Multi-Mode Valve utilizes a self-contained, easily removable car-
tridge that includes all necessary parts to overhaul the control valve. The
cartridge can be easily replaced in the field within one minute. Refer to
the chart on the next page for the replacement cartridge part number, or
see a complete list of replacement parts in Replacement Parts Section.
Section 6 describes cartridge field replacement.
The Multi-Mode Valve is rated for operation at 40,000 psi and features
the Jetstream Port Connection for connecting hoses to the valve. Depend-
ing on the assembly purchased, hose adapters are included to connect
hoses with either type M or HP end fittings.
Front Back

13PI-121January 2020
Product Specifications
Model Name PN 53905 PN 54695
Maximum Operating Pressure (psi) 40,000
Minimum Operating Pressure (psi) 10,000
Maximum Inlet Air Pressure (psi) 125
Minimum Inlet Air Pressure (psi) 80
Maximum Flow (gpm) 6.8
Maximum Operating Pressure (bar) 2,758
Minimum Operating Pressure (bar) 689
Maximum Inlet Air Pressure (bar) 8.6
Minimum Inlet Aire Pressure (bar) 4.8
Maximum Flow (l/min) 25.7
Inlet Connection 7/8” Type M Male 9/16” HP Fml.
Outlet Connection 9/16” Type M Male 3/8” HP Fml.
Nozzle Types Accepted UHPX, UHPXi, UHPXD
Width (in) 17
Depth (in) 13
Height (in) 15
Weight (lbs) 28.5
Width (mm) 431
Depth (mm) 330
Height (mm) 381
Weight (kg) 13
Replacement Cartridge PN 54014
Air Filter 40 Micron
Lubricator Oil SAE 10W

14 PI-121 January 2020
Product Configuration
The 40K Multi-Mode Valve can be configured in three different modes
depending on the equipment used and the needs of the user. Mode is
determined by the installation of a nozzle, a plug, or nothing in the mode
configuration port.
Figure 1 shows a cross section of the high-pressure valve assembly
used on the Multi-Mode Valve.
1) DUMP MODE:
For use with single gun systems. Reduces pressure to near atmospheric
pressure upon release of gun trigger. This mode is selected by remov-
ing the nozzle from the mode configuration port. Releasing gun trigger
will cause valve to shift water from blast gun to open atmospheric dump
port, making system act much like a standard dump style gun.
Operating in Dump Mode with frequent short cycles will
reduce the life of all components in the system, specifically hoses and
pressure gauges. All HP components will eventually fail due to fatigue
and frequent cycling from zero pressure to high pressure will shorten the
life of fluid end manifold and stuffing boxes. Consider running in constant
pressure mode instead.
MODE CONFIGURATION PORT
TO GUN
VALVE
AIR CYLINDER
IN
EMPTY NOZZLE PORT SIZED NOZZLE PLUG
123

15PI-121January 2020
2) CONSTANT PRESSURE MODE:
For multiple gun operation where system pressure must remain con-
stant. This is achieved by installing a properly-sized orifice in the diffuser
tube. Releasing gun trigger causes valve to shift from blast gun to fixed
orifice, maintaining system pressure. Orifice must be sized using the
nozzle selection chart so that its flow is equivalent to the total flow of all
the blast nozzles in the attached gun.
When operating in Constant Pressure Mode, it is abso-
lutely necessary to have the diffuser, diffuser tube, and elbow installed
over the nozzle to contain the dangerous waterjet, which exits the fixed
orifice.
Use the Nozzle Selection Chart under the Flow Chart Section to select
a nozzle for constant pressure mode operation. Chart assumes that all
blast nozzle orifices are the same diameter. If this is not the case for a
particular operation, the nozzle must be sized by determining the total
flow of all nozzles used in the blast gun and then selecting a single
nozzle with an equivalent flow to be installed in the mode configuration
port.
3) fSHUT-IN (DRY SHUTOFF) MODE:
For single or multiple gun systems which utilize intensifier or Flow type
pumps where stopping water flow is desired. This mode is selected by
installing a plug (UHPX-PLUG) in place of the orifice in the diffuser tube.
Releasing gun trigger causes valve to shift from blast gun to plugged
diffuser port, stopping water flow.
Never plug the mode configuration port of the Multi-Mode
Valve when using a plunger pump unless an approved pressure regula-
tion device is installed to prevent the system from exceeding the maxi-
mum operating pressure.

16 PI-121 January 2020
Section 3: Preparation for Use
3.0 BEFORE PUTTING 40K MULTI-MODE VALVE INTO SERVICE
NEW 40K MULTI-MODE VALVE
3.1 Check the Multi-Mode Valve carefully upon removal from its shipping
container for damage. DO NOT use the product if any damage is appar-
ent. Instead, notify Jetstream immediately if the condition of any compo-
nent is questionable.
3.2 Fill air lubricator with oil per Section 6.2.
3.3 Remove cartridge from packaging and check condition of seals.
Before installing according to the instructions in Section 6.1, check the
bore into which the cartridge is to be installed and verify that it is free
of packaging materials or other debris that could result in improper or
inconsistent operation or plugging of nozzles which could cause system
overpressurization.
3.4 Determine the mode in which the valve will be used from the Product
Configuration section and configure the dump port accordingly based on
Figure 1.
3.5 Follow all pre-startup procedures prior to putting a new Multi-Mode
Valve into service.
Do not use a Multi-Mode Valve that has not had the fol-
lowing procedures and inspection previously performed on it.
PREVIOUSLY USED 40K MULTI-MODE VALVE
For safety reasons, the following cleaning and inspections must be per-
formed on the control valve before the start of each working shift.
3.6 Remove the valve cartridge from the control valve body for inspec-
tion. The cartridge’s valve stem surface should be smooth and the valve
should move freely in cartridge. The cartridge seals should be free of
damage. Replace the cartridge if damage or wear to any component is
apparent.

17PI-121January 2020
3.7 If necessary, clean cartridge in a mineral-based solvent (diesel fuel,
kerosene, paint thinner, etc).
3.8 Clean the control valve body internal cavities and the actuator cylin-
der mechanism and cavities, if necessary, to remove all dirt and debris
from these areas.
3.9 Apply grease to the external seals and reinstall the cartridge. Wrench
tighten the valve plug to at least 30 ft-lbs. torque.
3.10 Verify that lubricator is filled to the recommended fill line with air
tool oil
3.11 Connect the Multi-Mode Valve to the waterblast system as instruct-
ed in Section 4 with water and air supplied, but make sure that there are
no nozzles or plugs installed in the control gun or the Multi-Mode Valve.
Adjust air pressure to between 80 psi and 90 psi using the control valve
regulator knob.
3.12 Engage the waterblast pump with the control gun triggers released.
At that point, the system pressure should be below 200 psi, and all flow
should be exiting the system through the mode configuration port (dump
port) of the Multi-Mode Valve. No water should be travelling through the
control gun.
3.13 Briefly squeeze both gun triggers to divert all flow from the dump
port to the control gun. No water should be exiting the system through
the dump port of the Multi-Mode Valve. The system pressure should still
remain below 200 psi.
3.14 Check the system for any air leaks by squeezing the gun triggers
for two or three seconds at a time while another person places a hand
around each air connection to ensure that there is no escaping air.
3.15 All air hoses should be intact and free of cracks or holes.
3.16 Air regulator and oiler should be secured to the base and fully
operational.

18 PI-121 January 2020
3.17 All frame components should be tight.
3.18 Inlet and outlet connection fittings should be rated for 40,000 psi.
3.19 Inlet and outlet connection fittings should be tight and in good
condition.
3.20 The control valve body should be tight on control valve base.
3.21 If intending to operate in Constant Pressure Mode, unscrew the
diffuser housing and remove the diffuser. Inspect the hole through the
diffuser center with a flashlight. If there appears to be significant wear
inside, replace it before beginning operation. This component will eventu-
ally wear out, and it should be replaced after every two hundred hours of
operation. If it is allowed to wear excessively, the waterjet exiting though
the fixed nozzle may wear a hole through the end of the diffuser, leaving
the low pressure elbow exposed to the waterjet. If this occurs, the valve’s
waterjet will quickly cut through the elbow on the dump port, exposing
the operators to a dangerous waterjet.
When operating in Constant Pressure Mode, the diffuser
must be replaced after 200 hours of operation to prevent component
failure, which would result in waterblast operators being exposed to a
dangerous waterjet from the dump port.
3.23 For operator safety, all high pressure hose sections connected to
the gun and 40K Multi-Mode Valve should be in good condition and free
of leaks and cover damage.
3.24 Drain hoses connected to the 40K Multi-Mode Valve dump port
should have a minimum of 3/4” inner diameter and should be no longer
than 25 feet. The hose should be free of blockages that can create
dangerously high pressures in diffuser housing, which could result in
component failure.
Never plug the low pressure elbow located on the dump
port of the Multi-Mode Valve, even when operating in Shut-In Mode. This
can result in component failure and/or possible operator injury.

19PI-121January 2020
Section 4: Setup
4.0 CONNECTING 40K MULTI-MODE VALVE
4.1 Use only fittings and hose that are related for at least 40,000 psi and
have a minimum burst rating of at least 100,000 psi.
4.2 Before connecting the gun and Multi-Mode Valve, all high-pressure
hoses should be purged by pumping water through the system to ensure
that dirt or other debris does not enter the system and cause damage or
overpressurization (plugged nozzle).
4.3 Check air lubricator oil level and fill if necessary to prevent damage
to control gun air motor.
4.4 Connect system components according to figures, but do not install
nozzles until step 5.11.
In Constant Pressure Mode or Shut-In Mode, each gun
operator must be connected to a Multi-Mode Valve in order to have inde-
pendent control of gun nozzle pressure at their location.
4.5 Apply anti-seize compound liberally to all stainless steel threads as
well as the cones and seats of all cone/seat connection types.

20 PI-121 January 2020
4.6 Consult chart below for replacement or additional components
needed to connect Multi-Mode Valves to system. In the chart, Type M fit-
tings and hoses for use with valve assembly 53905 are listed first. High
pressure (HP) fittings for use with assembly 54695 are shaded in gray.
Assembly PN 53905/54695
Item Part Number Description
1
53672 Adapter, 7/8” Type M Male
53988 Adapter, 9/16” HP Male
2*
27626-XXX41411 Hose, XXX ft, 7/8” Type M
27626-XXX33331 Hose, XXX ft, 9/16” HP Male
3
27528 Adapter, 7/8” Type M Male
27607 Coupling, 9/16” HP
4
54482 Y-Adapter, 7/8” Type M Male
28672 Y-Adapter, 9/16” HP Female
5**
53570 Adapter, 7/8” Type M Male
53572 Adapter, 9/16” HP Male
6
53905 Multi-Mode Valve (Type M)
54695 Multi-Mode Valve (HP)
7**
53571 Adapter, 9/16” Type M Male
54056 Adapter, 3/8” HP
8
27731-02539393 Hose, 9/16” Type M
27731-02532323 Hose, 3/8” HP
9*** 27530 Adapter, 9/16” Type M Male
10
53880 Tornado Gun, 36” Barrel
53710 Tornado Gun, 48” Barrel
11** 28066 Air Control Hose
12
53970 3 Orice Tornado Nozzle
53971 4 Orice Tornado Nozzle
NOTE: Part numbers and descriptions are subject to change without
notice.
* When ordering hose, length must be specified in feet. For example, a
fifty foot hose would be 27626-05041411
** Item included with Multi-Mode Tumble Box
*** Item included with Tornado Gun