Cash Valve Type B 1-1/4”-2” Cryogenic Pressure Regulator Installation guide

Cash Valve Type B 1-1/4”-2” Cryogenic Pressure Regulator Installation guide
CASH TYPE B 1¼" TO 2"
CRYOGENIC PRESSURE REGULATOR INSTALLATION INSTRUCTIONS
Before installation, these instructions must be carefully read and understood.
DESCRIPTION
GENERAL INSTALLATION INSTRUCTIONS
OPERATING INSTRUCTIONS
The Type B regulator is a fully automatic
pressure regulating valve designed for
cryogenic service in the pressure build-up
circuit. Because the Type B may be used for
either cryogenic liquids or gases, it may be
installed either before or after the pressure
build-up coil.
Install a Y-Type or equivalent strainer upstream
of the Type B. The built-in strainer screen is
secondary protection only.
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 (5) 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.
SPECIFICATION DATA
Service: Cryogenic liquids and gases (pressure
reducing or build-up service)
Sizes: 1¼", 1½", and 2"
Connections: Threaded internal inlet and outlet
Body Material: Bronze
Temperature Rating: +150°F (339°K) to
-320°F (78°K)
Maximum Initial Pressure:
400 psi (27.6 bar)
Capacity:
For specific capacity information, consult the
factory.
Emerson.com/FinalControl
The Type B regulator should be installed in the
horizontal position with the spring chamber up
or down. For other installation requirements
consult the factory. For ease of operation and
maintenance, it is suggested that manual
shutoff valves be installed upstream and
downstream from the valve. Before installing
the valve, the piping and the 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 good pipe joint compound on
the male pipe threads and do not over tighten
the valve connections.
CONSTRUCTION
Bronze body, internal trim, and diaphragms;
Teflon seat, diaphragm gasket, and bottom
plug gasket; stainless steel pressure spring.
All parts are commercially cleaned for
oxygen service.
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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 for parts identification.
Repair parts can easily be installed without
removing the regulator from the line.
VCIOM-10796-EN 19/04
CASH TYPE B 1¼" TO 2"
CRYOGENIC PRESSURE REGULATOR INSTALLATION INSTRUCTIONS
No.
Component Description
Construction
1
Adjusting Screw
SST
Brass
2
Lock Nut
3
Name Plate
Aluminum
4
Spring Button
Brass
5
Spring Chamber
Bronze
6
Pressure Spring
SST
7
Pressure Plate
Brass
8
Diaphragm
Bronze
9
Gasket
Teflon
10
Screw
SST
SST
11
Nut
12
Pusher Post Button
Brass
13
Seat Disc
Teflon
14
Piston and Post
Brass
15
Cylinder
Brass
16
Screen
Monel
Bronze
17
Body
18
Gasket
Teflon
19
Piston Spring
302 SST
20
Bottom Plug
Bronze
FIGURE 1
Neither Emerson, Emerson Automation Solutions, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product.
Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Cash is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. Emerson Automation Solutions, Emerson
and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective 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.
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2
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