Page 265 - Praxair - Specialty Gases and Equipment Reference Guide

4083 and 4085 Regulators

Critical Purity High Flow Regulators for Non-Corrosive Service

Single Stage Regulator, Brass Barstock Body,
316 Stainless Steel Diaphragm,
Four-Port Configuration
(4083 Series Line Regulator)
Six-Port Configuration
(4085 Series Single Stage Regulator)
The 4083 (Line) and 4085 (Single Stage) Series regulators can be
used in many different applications including high flow purging,
semiconductor manufacturing, manifolds and line regulation.

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

Features and Benefits
■ Brass Barstock Body ■ Base Mount ■ 3000 psig Inlet Pressure ■ Balanced Stem Seat
Smooth surface finish 1/4" - 20 UNC Rating Constant delivery pressure
Safe use with high at high flow
■ Front and Rear Panel ■ Pressure Ranges
Mountable 0-15 to 0-250 psig pressure cylinders ■ Low Wetted Surface Area
Versatile system configuration Broad range of applications ■ 316 Stainless Steel Minimal purge requirements
Diaphragm at high flow
No inboard diffusion

Specifications Materials
■ Maximum Inlet Pressure ■ Helium Leak Integrity ■ Body ■ Filter
3000 psig (210 bar) 1 x 10 scc/sec Brass barstock 40 micron sintered bronze
-8
■ Diaphragm
■ Temperature Range ■ Cv ■ Bonnet
-40 °F to 165 °F 1.0 Brass barstock 316 stainless steel
(-40 °C to 74 °C) ■ Maximum Flow Rate ■ Seat ■ Internal Seals
■ Gauges 8000 scfh (3770 Lpm) CTFE 4083 Series – Teflon ® ®
2" diameter brass ■ Weight For flow curve see page E •411 4085 Series – Teflon
Section E – Gas Handling Equipment
■ Ports 4.4 lb (2.0 kg)
1/2" FNPT (inlet/outlet)
1/4" FNPT (gauges)
Ordering Information – Series PRS4083ABCD-CGA (Line Regulator) and Series PRS4085ABCD-CGA (Single Stage Regulator)
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: 1/2" FNPT Port 0: Bare Body 4083 Series
2: 0-40 psig 0-60 psig 3: 0-4000 psig 1: 1/2" Tube Fitting 1: Standard Assembly 000: 1/2" FNPT
3: 0-120 psig 0-200 psig 5: 0-1000 psig (psi/kPa Gauges) TF8: 1/2" Tube
4: 0-200 psig 0-400 psig 6: 0-400 psig 2: Standard Assembly
5: 0-250 psig 0-400 psig 7: 0-200 psig (bar/psig Gauges) 4085 Series
9: 0-600 psig CGA, DIN 477,
* Not applicable to 4083 Series. BS 341 and others
Always select “0: None”

Option Part Number Description
Helium Leak Certification PRS4760002 Inboard helium leak certification to less than 1 x 10 scc/sec
-8
Reversed Inlet/Outlet Configuration Contact your Praxair representative Inlet and outlet ports supplied in a reversed (“mirror image”) configuration

E•264 1-877-PRAXAIR www.praxairdirect.com