Page 271 - Praxair - Specialty Gases and Equipment Reference Guide

3003 Regulators

Oxygen Regulators

3003 Series – Oxygen Single Stage Regulator
The 3003 Series is an economical oxygen regulator, for use where
periodic pressure control is required. It is designed using materials
approved for oxygen service.

Features and Benefits
■ Nickel Plated Brass Barstock ■ Diaphragm
Helps ensure compatibility for Monel reduces adiabatic heat
oxygen service of recompression
■ Needle Valve
Controls gas flow

Specifications Materials
■ Inlet Pressure ■ Cv ■ Body ■ Bonnet
3000 psig 0.2 Nickel-plated brass barstock Chrome-plated forged brass
■ Temperature Range ■ Body Ports ■ Diaphragm ■ Needle Valve
-40 °F to 140 °F 1/4" FNPT Monel Chrome-plated brass barstock
(-40 °C to 60 °C) ■ Gauges ■ Seats and Seals
2" Neoprene/nylon

Ordering Information – Series PRS3003ABCD-540 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 540
2: 0-50 psig 30"-0-100 psig 3: 0-4000 psig 1: 1/4" MNPT 1: Standard Assembly
3: 0-100 psig 30"-0-200 psig 5: 0-1000 psig 2: 1/4” Tube Fitting (psi/kPa Gauges)
4: 0-250 psig 0-400 psig 6: 0-300 psig 3: Diaphragm Valve 1/4" Tube Fitting 2: Standard Assembly
7: 0-150 psig 30"-0-200 psig 7: 0-400 psig 4: Diaphragm Valve 1/4" MNPT (bar/psi Gauges)
5: Needle Valve 1/4" MNPT
6: 1/8" Tube Fitting
7: 3/8" Tube Fitting
8: Diaphragm Valve 1/8" Tube Fitting
Section E – Gas Handling Equipment
9: Diaphragm Valve 1/4" FNPT
Option – 3003 Series 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

E•270 1-877-PRAXAIR www.praxairdirect.com