Page 253 - Praxair - Specialty Gases and Equipment Reference Guide

3004 Regulators

High Purity Regulators for Non-Corrosive Service

Line Regulator, Single Stage Nickel-Plated
Brass Barstock Body, Three-Port Configuration,
316 Stainless Steel Diaphragm
The 3004 Series regulators are intended for secondary pressure
control of non-corrosive, high purity or liquefied gases. It is also
recommended as a point of use presure control in high purity gas
delivery systems.

Typical Applications
■ Bulk gas delivery systems ■ High purity chamber
■ Gas and liquid pressurization
chromatography ■ Liquefied hydrocarbon gas
■ High purity carrier gases control
■ Zero, span, and calibration ■ Control for cryogenic gases
gases

Features and Benefits
■ Nickel-Plated ■ Outlet Pressure Ranges ■ 316 Stainless Steel ■ Convoluted Diaphragm
Brass Barstock Body 0-15 to 0-500 psig Diaphragm Smooth pressure transition
Controlled surface integrity Broad range of applications No inboard diffusion
■ Front and Rear Panel ■ 3000 psig Inlet Pressure ■ Low Wetted Volume
Mountable Rating Minimal purge requirements
Versatile system configuration Safe use with high pressure
Rear mount 10-32 UNF (2) cylinders

Specifications Materials
■ Maximum Inlet Pressure ■ Helium Leak Integrity ■ Body ■ Filter
3000 psig (210 bar) 1 x 10 scc/sec Nickel-plated brass barstock 10 micron sintered bronze
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■ Temperature Range ■ Cv ■ Bonnet ■ Diaphragm
-40 °F to 165 °F 0.1 (maximum outlet Nickel-plated brass barstock 316 stainless steel
(-40 °C to 74 °C) 50 psig or below) ■ Seat ■ Internal Seals
0.2 (maximum outlet ®
■ Gauges PFA Teflon Teflon ®
2" diameter above 50 psig)
chrome-plated brass ■ Weight
2.8 lb (1.3 kg)
■ Ports
1/4" FNPT
Section E – Gas Handling Equipment
Ordering Information — Series PRS3004ABCD-CGA Highlighted selection indicates most popular model

A B C D CGA
Outlet Pressure Outlet Gauge Inlet Gauge Outlet Assemblies Assembly/Gauges Inlet Connections
1: 0-15 psig 30"-0-30 psig 0: None 0: 1/4" FNPT Port 0: Bare Body 000: 1/4" FNPT
2: 0-50 psig 30"-0-100 psig 1: 1/4" MNPT 1: Standard Assembly TF2: 1/8" Tube
3: 0-100 psig 30"-0-200 psig 2: 1/4" Tube Fitting (psi/kPa Gauges) TF4: 1/4" Tube
4: 0-250 psig 0-400 psig 3: Diaphragm Valve 1/4" Tube Fitting 2: Standard Assembly TF6: 3/8" Tube
5: 0-500 psig 0-1000 psig 4: Diaphragm Valve 1/4" MNPT (bar/psi Gauges) TF8: 1/2" Tube
7: 0-150 psig 30"-0-200 psig 5: Needle Valve 1/4" MNPT
6: 1/8" Tube Fitting
7: 3/8" Tube Fitting
8: Diaphragm Valve 1/8" Tube Fitting
9: Diaphragm Valve 1/4" FNPT

Option Part Number Description
Panel Mount Kit PRS5500002T To mount the regulator using threads on the bonnet.
Wall Mount Kit PRSSMLR-1 To mount regulator to a wall
Captured Vent – Standard Equipment PRSSG6705 For easy piping of vented gases to a safe location in the event
3000 and 4000 1/16" FNPT of diaphragm failure.
Helium Leak Certification PRS4760002 Inboard helium leak certification to less than 1 x 10 scc/sec
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E•252 1-877-PRAXAIR www.praxairdirect.com