FW MURPHY PD8100 Series Pulsation Dampener Instruction Manual
- June 3, 2024
- FW MURPHY
Table of Contents
sect. 55 95145 rev. 2020/10/08
Pulsation Dampener
PD8100 Series
PD8100 Series Pulsation Dampener
The PD8100 Series eliminates pointer flutter on pressure indicating gage
devices which are subject to pulsating pressure from reciprocating pumps or
compressors. It also allows a close setting of high and low contact points
providing for more accurate pressure indication and control of equipment.
The PD8100 Series decreases wear on geared movements and increases the life of
pressure indicating instruments by eliminating excessive gage strain and
unnecessary movement, a necessity which quickly pays for itself by protecting
any pressure indicating and control instrument which is subject to pulsation.
PD8100 SERIES IS NOT FOR USE ON OXYGEN OR LIQUID OXYGEN APPLICATIONS.
The PD8100 is quality built with a large diameter valve stem wheel for ease of
adjustment and features clearly printed operating instructions.
Machined from 1 3/8-inch (35 mm) hex bar stock, a two degree taper on the
valve and stem assure positive dampening.
It’s available in brass, carbon steel, 303 stainless steel or 316 stainless
steel to meet pressure and environmental requirements with either 1/2 NPT or
1/4 NPT inlet connections.
Dimensions
Specifications
See How to Order section for available inlet and outlet connections.
PD8183: All wetted parts are brass. Rated to 3000 psi (20.68 MPa) [206.80
bar].
PD8184: All wetted parts are carbon steel. Rated to 5000 psi (34.47 MPa)
[344.70 bar].
PD8185: All wetted parts are 303 stainless steel. Rated to 10000 psi (68.95
MPa) [689.50 bar].
PD8190: All wetted parts are 316 stainless steel. Rated to 10000 psi (68.95
MPa) [689.50 bar].
Meets NACE standard MR- 01-75 for direct exposure to H2 S.
Operating Temperature: -15° to 400° F (-26° to 204° C).
NOT INTENDED FOR USE AS A SHUTOFF VALVE
Compressor Panel
The PDs are recommended for use on piston pumps and compressors to eliminate
pointer contact flutter and gage wear.
Shown is a typical compressor panel featuring three
PDs and FW Murphy OPLFC gages.
Mounting
The PD8100 Series Pulsation
Dampener is mounted directly
below the OPLFS Pressure Gage.
Precautions: Do not block the inlet orifice. Use caution when applying dope or Teflon tape on connection threads.
Diagram
A. 1/2 NPT inlet x 1/4 NPT outlet
A. 1/2 NPT x 1/2 NPT outlet
B. Bonnet Fitting
C. Valve Stem
D. Packing Nut
E. Hand Wheel (with 10-32 nut)
F. Strainer Bushing Assembly †
G. Molded Packing Gland
H. O Ring Bonnet Seal
J. Stainless Mesh Filter*
For 1/4 NPT inlet use with strainer bushing assembly † Provided only for units with 1/4 NPT inlet
**Provided in units with 1/2 NPT inlet.
How to Order
Options listed below. All configurations may not be available. Call your sales representative or FW Murphy for more information.
Approximate Shipping Weight and Dimensions
Model| Weight| Dimension
All models| 2 lb. 0 oz.| 4 3/4 x 4 3/4 x 3 1/4 in.
Part Number| Description| Notes
---|---|---
PD8183| PD8184| PD8185| PD8190| | Service Parts
55000179| 55000179| 55000179| 55000179| Hand Wheel (with 10-32 nut)
55000174| 55000173| 55000175| ———–| Strainer Bushing Assembly,
In order to consistently bring you the highest quality, full-featured
products, we reserve the right to change our specifications and designs at any
time.
FW MURPHY product names and the FW MURPHY logo are proprietary trademarks.
This document, including textual matter and illustrations, is copyright
protected with all rights reserved. (c) 2021 FW MURPHY. A copy of our typical
warranty may be viewed or printed by going to
www.fwmurphy.com/warranty.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>