Emerson CASH VALVE A-32 User manual

Before installation, these instructions must be read carefully and understood.
CASH VALVE™ TYPE A-32 CRYOGENIC PRESSURE REGULATOR
INSTALLATION INSTRUCTIONS
Emerson.com © 2019 Emerson. All rights reserved. VCIOM-13794-EN 22/01
DESCRIPTION
The Type A-32 regulator is a fully automatic
pressure regulating valve designed for
cryogenic service in the pressure build-up
circuit. Because it may be used for either
cryogenic liquids or gases, it may be installed
either before or after the pressure build-up coil.
SPECIFICATION DATA
Service: Cryogenic liquids and gases
(pressure reducing or pressure
build-up service)
Sizes:
1
/
4"-
3
/
8"
Connections: Threaded internal
inlet and outlet.
Body Material: Bronze or Stainless steel
Temperature Rating:
+150°F (339°K) to -320°F (78°K)
Maximum Initial Pressure: 600 psig (41.4 bar)
Capacity: For specific capacity information,
consult the factory.
GENERAL INSTALLATION INSTRUCTIONS
The Type A-32 regulator should be installed
in the horizontal position with the spring
chamber upright or down. For other installation
requirements, consult the factory. For easy
operation and maintenance, it is suggested that
manual shut-off valves be installed upstream
and downstream from the valve. Before
installing the valve, the piping and valve should
be thoroughly flushed out to remove any foreign
material. Install the valve with the inlet pipe
fitted to the inlet connection identified on the
valve body. Use a compatible sealant on the
male pipe threads and do not over-tighten the
valve connections.
CONSTRUCTION
See component description for materials
of construction.
All parts are commercially cleaned for
oxygen service.
OPERATING INSTRUCTIONS
Adjusting the Delivery Pressure
The regulator’s delivery pressure setting is
adjusted by turning the adjusting screw (1)
at the top of the spring chamber (3) after
loosening the adjusting screw lock nut (2).
To increase the delivery pressure, turn the
adjusting screw clockwise (into the spring
chamber). To decrease the delivery pressure,
turn the adjusting screw counter-clockwise (out
of the spring chamber). Tighten the adjusting
screw lock nut after the adjustment has been
made (and reinstall optional cap).
MAINTENANCE INSTRUCTIONS
CAUTION
Before attempting to replace any spare parts,
be sure to shut off all pressure connections to
the valve. With the valve closed however, system
pressure could still be locked between the shut
off valve and the inlet and/or outlet sides of the
regulator. Before proceeding with any valve
service, be certain to relieve the pressure from
both sides of the regulator.
Refer to section view on the following page for
parts identification. Repair parts can easily
be installed without removing the regulator
from the line.
WARNING
Failure to follow these instructions or to properly
install and maintain this equipment could result in
an explosion, fire and/or chemical contamination
causing property damage and personal injury
or death.
Cash Valve regulators must be installed, operated
and maintained in accordance with federal,
state and local codes, rules and regulations
and Emerson Process Management Regulator
Technologies, Inc. instructions.
If the regulator vents gas or a leak develops in
the system, service to the unit may be required.
Failure to correct trouble could result in a
hazardous condition.
Installation, operation and maintenance
procedures performed by unqualified personnel
may result in improper adjustment and unsafe
operation. Either condition may result in
equipment damage or personal injury. Only
a qualified person shall install or service the
Type A32 regulator.
CALIFORNIA PROPOSITION 65 WARNING
This product can expose you to chemicals
including lead, which is known to the State of
California to cause cancer, birth defects or other
reproductive harm. For more information, go to
www.P65Warnings.ca.gov.
INTRODUCTION
Scope of the Manual
This manual provides instructions for the
installation, adjustment and maintenance for
the Type A32 pressure regulator.

2
L
2
3
4
5
7
9
10
11
12
13
1A
14
1.75 [44.5]
3.11
[79.1]
0.69
[17.6]
2.26 [57.4]
0.94
[24.0]
0.88 [22.3]
7
6D
8
6A
6B
6C
6E
6F
1
CASH VALVE™ TYPE A-32 CRYOGENIC PRESSURE REGULATOR
INSTALLATION INSTRUCTIONS
VCIOM-13794-EN © 2019, 2022 Emerson Electric Co. All rights reserved 01/22. Cash Valve is a mark owned by one of the companies in the Emerson Automation
Solutions business unit of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their
prospective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be
construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by
our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without
notice.
Emerson Electric Co. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of
any Emerson Electric Co. product remains solely with the purchaser.
Emerson.com
Item Quantity Description Material
1 1 Adjusting Screw SST
1A 1Adjusting Screw Brass
2 1 Lock Nut SST
3 1 Spring Chamber Aluminum or Brass,
Brass with Chrome
4 1 Spring Button Brass
5 1 Pressure Spring SST or Carbon Steel
6 1 Diaphragm Sub
6A 1P-Post Button Brass or SST
6B 1Nut Brass
6C 1Lock Washer SST
6D 1Diaphragm Buna, EPR, SST, Bronze
6E 1Pressure Plate Brass
6F 1Gasket Gylon
7 1 Diaphragm Stop Brass
8 1 Gasket Teflon
9 1 Piston Sub
9A 1Piston Brass
9B 1Seat Disc Teflon, Buna-N
9C 1Piston Spring SST
10 1Body Brass
11 1Piston Spring SST
12 1Gasket Copper
13 1Bottom Plug Brass
14 1Name Plate Aluminum
LIST OF MATERIALS
FIGURE 1
1
/
4" or
3
/
8" Pressure Builder Valve Cryogenic
STANDARD 01, 11
INLET
SCREEN: VARIATION 11, 12
NO SCREEN: VARIATION 01, 02
OPTIONAL BALANCED
PISTON VARIATION 02, 12
BALANCED PISTON
VARIATION 02, 12
NOTES
1. Dimensions are approximate. Unless otherwise
specified.