PD8100 Series
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Pulsation Dampener PD8100 Series 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. 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. 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 H2S. Operating Temperature: -15° to 400° F (-26° to 204° C). 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) 2019 FW MURPHY. A copy of our typical warranty may be viewed or printed by going to www.fwmurphy.com/warran

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. E. Hand Wheel (with 10-32 nut) G. Molded Packing Gland H. O Ring Bonnet Seal Options listed below. All configurations may not be available. Call your sales representative or FW Murphy for more information. 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.