Page 257 - Praxair - Specialty Gases and Equipment Reference Guide

2012 Regulators

High Purity Economical Regulators

Dual Stage Chrome-Plated, Five-Port Configuration,
316L Stainless Steel Diaphragm
The 2012 Series regulators are intended for primary pressure
control of non-corrosive, high purity or liquefied gases. It is
recommended for applications requiring constant delivery
pressure control, regardless of supply pressure.

Typical Applications
■ Gas supply purging ■ INST calibrators
■ Gas system charging ■ Purging systems
■ Fuel gas supply control ■ Carrier gases
■ Calibration gas control ■ BTU analyzers
■ Gas Chromatography ■ Non corrosive gas mixtures
■ Mass Spectrometers for analytical instrumentation

Features and Benefits
■ Chrome-Plated Barstock ■ High Flow Capacity ■ Stainless Steel Diaphragm ■ Large Convoluted Diaphragm
Body Supply multiple use locations No inboard diffusion Smooth pressure transition
Economical high purity
design ■ Outlet Pressure Ranges
0-15 to 0-200 psig
Broad range of applications
Specifications Materials
■ Maximum Inlet Pressure ■ Ports ■ Body
3000 psig (210 bar) 1/4" FNPT Chrome-plated forged brass ■ Filter
10 micron, sintered bronze
■ Temperature Range ■ Helium Leak Integrity ■ Bonnet
-40 °F to 140 °F 1 x 10 scc/sec First stage – Die cast zinc ■ Diaphragm
-8
(-40 °C to 60 °C) Second stage – Chrome plated Stainless steel
■ Cv die-cast zinc ■ Internal Seals
■ Gauges 0.15 Viton ®
2-1/2" diameter ■ Seat
chrome-plated brass ■ Weight First stage – PTFE Teflon ®
6 lb (2.7 kg)
Second stage – PTFE ®
Ordering Information – Series PRS2012ABCD-CGA Highlighted selection indicates most popular model
Section E – Gas Handling Equipment
A B C D CGA
Outlet Pressure Outlet Gauge Inlet Gauge Outlet Assemblies Assembly/Gauges Inlet Connections
1: 0-15 psig 0-30 psig 0: None 0: 1/4" FNPT Port 0: Bare Body CGA,
2: 0-40 psig 0-60 psig 3: 0-4000 psig 1: 1/4" MNPT 1: Standard Assembly DIN 477,
3: 0-120 psig 0-200 psig 5: 0-1000 psig 2: 1/4" Tube Fitting (psi/kPa Gauges) BS 341
4: 0-200 psig 0-400 psig 6: 0-400 psig 3: Diaphragm Valve 1/4" Tube Fitting 2: Standard Assembly and others
4: Diaphragm Valve 1/4" MNPT (bar/psi Gauges) available
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
Protocol Station Add Letter “M” after CGA See page E •281 for details
Protocol Switchover Station Add Letter “C” after CGA See page E •282 for details
Protocol Switchover Station with Alarm Add Letter “G” after CGA See page E •283 for details
Protocol Alarm Station Add Letter “A” after CGA See page E •283 for details
Deep Purge Add Letter “D” after CGA See page E •279 for details

E•256 1-877-PRAXAIR www.praxairdirect.com