Cash Valve Type PBE-3A Pressure Builder/Economizer Regulator Owner's manual

Cash Valve Type PBE-3A Pressure Builder/Economizer Regulator Owner's manual
CASH VALVE TYPE PBE-3A PRESSURE BUILDER/ECONOMIZER REGULATOR
INSTALLATION INSTRUCTIONS
Before installation, these instructions must be read carefully and understood.
DESCRIPTION
CONSTRUCTION
The Type PBE-3A regulator is a fully automatic
pressure builder/economizer valve designed for
cryogenic liquid systems. It is equipped with a
non-adjustable/fixed set point economizer. An
indicating adjustment screw provides an easy
field adjustment reference.
See component description for materials of
construction.
SPECIFICATION DATA
Service: Cryogenic Liquids
Size: ¼"
Connections: NPTF
Body Material: ASTM CA377 Brass Forging
Temperature rating:
-320°F (-196°C) to +150°F (66°C)
Maximum Initial Pressure:
600 psi (41 bar)
Capacity: For specific capacity information,
consult the factory.
GENERAL INSTALLATION INSTRUCTIONS
For easy operation and maintenance, it is
suggested that the 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.
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OPERATING INSTRUCTIONS
Adjusting the Pressure Build Set Pressure
To increase the set pressure, turn the adjusting
screw clockwise (into the spring chamber).
To decrease the pressure, turn the adjusting
screw counter-clockwise (out of the spring
chamber).
The Economizer Set Pressure is fixed.
The Economizer will begin to open between
approximately 8-11 psi above the Pressure
Build set point.
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.
© 2019 Emerson. All rights reserved.
VCIOM-13637-EN 19/08
CASH VALVE TYPE PBE-3A PRESSURE BUILDER/ECONOMIZER REGULATOR
INSTALLATION INSTRUCTIONS
LIST OF MATERIALS
Item No. Description
Adjusting screw
1
sub
2
Sticker
3
Spring chamber
4
Spring button
5
Pressure spring
6
Pressure plate
7
Diaphragm stop
8
Body
9
Piston
9A
Seat disc
10
Piston spring
Materials
Quantity
Brass
1
Paper
Brass
Brass
SST
Brass
Brass
Brass
Brass
Teflon
SST
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
11
12
13
Gasket
Bottom plug
Gasket
14
Diaphragm
15
16
17
O-ring
Seat
Pusher post
Copper
Brass
Teflon
Phos.
Bronze
Teflon
Brass
Brass
18*
Gasket
Brass
FIGURE 1
18
VIEW A
For 50-175 psi and 150-350 psi
Spring ranges
18
18
VIEW B
Item 18 is to be put on top of
item 7 for 15-50 psi spring range
3
18
Notes:
1. Dimensions are approximate.
2. Clean for oxygen service.
3. See catalog for pressure, temperature, and any
other service limitations.
*Used only on spring ranges 15-50 psi and
300-600 psi. Item 18 is to be put below the item 7
for spring range 300-600 psi and on top of item 7 for
15-50 psi spring range.
LEFT HAND
18
RIGHT HAND
PB OUT LH
18
VIEW C
Item 18 is to be put below
the item 7 for spring range
300-600 psi
RIGHT HAND
(3 Places)
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 Valve 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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