Installation Guide: PRX Series Parts Kits Assemblies Installation Sheet (North America Only) | Fisher
Tartarini Installation Guide: PRX Series Parts Kits Assemblies Installation Sheet (North America Only) | Fisher Manuals & Guides
North America Only
Installation Sheet
Form 5856
April 2009
PRX Series Parts Kits Assemblies
Introduction
PRX Series
These parts kits are used to replace the existing
elastomer parts of PRX Series regulators.
WARNING
!
Avoid personal injury or damage to
property from sudden release of pressure
or uncontrolled gas or other process uid.
Before starting to disassemble, isolate
the pilot or regulator from all pressure
and cautiously release trapped pressure
from the pilot or regulator. Use gauges to
monitor inlet, loading, and outlet pressures
while releasing these pressures.
To avoid possible personal injury,
remove spring tension before performing
maintenance on this unit. To remove
spring tension, carefully loosen locknut
and back out adjusting screw until
compression is removed from the spring.
For the key number locations of the below listed
parts, refer to the gures on the following page of this
installation sheet.
Outline Drawing of Different Elastomer Parts*
KEY 4, UPPER COVER O-RING
KEY 17, ORIFICE O-RING
KEY 18, LOWER COVER O-RING
*The following drawings may show actual diameter size of the parts they represent.
www.emersonprocess.com/regulators
KEY 5, O-RING
KEY 25, STEM O-RING
KEY 14, DIAPHRAGM
KEY 28, RESTRICTOR/DAMPER O-RING
D103149X012
North America Only
PRX Series
B
S
L
R
D
B
S
D
4
4
4
5
14
17
14
18
A
A
B
A
18
25
PRX Series Spare Parts Kits
Description Part Number
Elastomer Parts Kits (include keys: 4, 5, 14, 17,
18, 25, and 28)
Types PRX/120 and PRX/125
Nitrile (NBR) RPRX00X0N12
Fluorocarbon (FKM) RPRX00X0F12
Types PRX/120-AP and PRX/125-AP
Nitrile (NBR) RPRXAPX0N12
Fluorocarbon (FKM) RPRXAPX0F12
AP VERSION
TYPE PRX/120 VERSION - SECTION A-A TYPE PRX/125 VERSION - SECTION A-A
Industrial Regulators
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574
Asia-Pacic
Shanghai, China 201206
Tel: +86 21 2892 9000
Europe
Bologna, Italy 40013
Tel: +39 051 4190611
Middle East and Africa
Dubai, United Arab Emirates
Tel: +971 4811 8100
For further information visit www.emersonprocess.com/regulators
Natural Gas Technologies
Emerson Process Management
Regulator Technologies, Inc.
USA - Headquarters
McKinney, Texas 75069-1872 USA
Tel: 1-800-558-5853
Outside U.S. 1-972-548-3574
Asia-Pacic
Singapore, Singapore 128461
Tel: +65 6777 8211
Europe
Bologna, Italy 40013
Tel: +39 051 4190611
Gallardon, France 28320
Tel: +33 (0)2 37 33 47 00
TYPES PRX/120 AND PRX/125 ASSEMBLY
TESCOM
Emerson Process Management
Tescom Corporation
USA - Headquarters
Elk River, Minnesota 55330-2445 USA
Tel: 1-763-241-3238
Europe
Selmsdorf, Germany 23923
Tel: +49 (0) 38823 31 0
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls, Inc., a
business of Emerson Process Management.
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. We reserve the right to modify or improve the designs or specications of such
products at any time without notice.
Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson
Process Management product remains solely with the purchaser.
©Emerson Process Management Regulator Technologies, Inc., 2008, 2009; All Rights Reserved
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