Gas Delivery Regulator (GDR)0 pages
GDR
GAS DELIVERY REGULATOR
1/4" - 1" NPT, BSPT
Spring Reference & Pilot Operated
PILOT OPERATED (DOME LOADED)
STANDARD CONFIGURATION
PIPE-A-WAY CHAMBER
PANEL MOUNTED
SERIES
Description
The GDR Series Regulator provides reliable, precise pressure control in the most demanding applications.
Optimized Venturi and spring design assures high flow with extremely low droop characteristics. Solid non-tied
diaphragm and all brass construction guarantees leak free long lasting performance. Fully balanced design
virtually eliminates outlet pressure fluctuations due to inlet pressure variations. All GDR Series regulators are
100% factory tested.
Features
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Materials of Construction
Fully Balanced Design maintains a
constant delivery pressure regardless of
inlet pressure fluctuations
Fully Supported, Solid Non-Tied
Diaphragm for long leak free service life
Flow Rates to 20,000 SCFH
Optimized Spring Design and Unique
Venturi Tube allows for high flow rates
with minimal pressure droop effect
Pilot Operated (dome loaded)
Configuration maintains virtually
constant outlet pressures
Vent Chamber to Stack with Pipe-aWay Option
Side Venting Chamber option prevents
moisture accumulation when mounted
horizontally
Cleaned and Packaged for Oxygen
Service
Note: Regulators supplied with Nitrile Seals
are not Cleaned and Packaged for Oxygen
Service.
SA.SL.GDR001.E.2282
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Forged Brass Body and Spring Chamber
ASTM 377
Brass Adjustment Screw, Valve, Valve Stem,
Spring Button, Spring Retainer and Venturi
Tube ASTM B16
303 Stainless Steel Chamber Insert
ASTM A276
Color Coded, Chrome Vanadium Adjustment
Springs ASTM A-231
302 Stainless Steel Valve Spring
ASTM A-313
GLT Fluoroelastomer (FKM), EPDM, or
Nitrile on Nylon Diaphragm
GLT Fluoroelastomer (FKM), EPDM, or
Nitrile Seats and Seals
Stainless Steel Trim (Flange Screws and
Lock Nut)
Note: EPDM seals recommended for CO2
service. Nitrile Seals recommended for NG
service.
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