Oxygen Flow Stainless Steel Pressure Regulator For Welding With Diaphragm Valve

R31 Serie stainless steel pressure reducers, double-stage diaphragm pressure reducing construction, stable output pressure, applied to high pure gas, standard gas, corrosive gas and so on 

Design Features

l Five holes on the body

l two-stage decompression structure

l Metal-to-metal diaphragm seal

l Body thread:  1/4” NPT(F)

l Easy to clean inside

l Filter  inside 

l Panel mounting and wall mounting available

l Optional outlet: needle valve, diaphragm valve  

Specification

l Maximum inlet pressure: 3000, 500psig

l Output pressure:0~25, 0~50, 0~100, 0~250psig

l Safe testing pressure: 1.5 times maximum inlet pressure

l Working temperature: -40℉~+165℉(-40℃~+74℃)

l Leakage rate: 2×10-8 atm.cc/sec 

l CV  value=0.06 

Typical Application

l Laboratory

l Gas laser

l Gas bus-bar

l Petrochemical industry

l Testing equipment

Material

l Body: 316L, Brass

l Bonnet: 316L, Brass

l Diaphragm: 316L

l Strainer: 316L(10μm)

l Seat: PCTFE, PTFE, Vespel

l Spring: 316L

l Stem: 316L

Ordering Information: 

 

Item	Body Material	Body Hole	Inlet pressure	Outlet pressure	Gauge	Inlet connection	Outlet connection	Optional
R31	L:ss316L	M	D:3000PSI	G:0-125psi	G:Mpa	00:1/4NPT F	00:1/4"NPT F	P:panel mount
	B:brass	Q	F:500PSI	I:0-75psi	P:psi/bar	01:1/4"NPT M	01:1/4"NPT M	R:attached safety relief valve
				K:0-25psi	W:no gauge	23:CGA330	10:1/8O.D.	N:attached needle valve
				L:0-15psi		24:CGA350	11:1/4O.D.	D:attached diaphragm valve
				Q:30"Hg Vac-30psig		27:CGA580	12:3/8O.D.
				S:30"hg Vac-60psig		28:CGA660	15:6mmO.D.
				T:30"hg Vac-100psi		30:CGA590	16:8mmO.D.
				U:30"Hg Vac-200psi		52:G5/8"-RH(F)	74:M8*1-RH(M)
						63:W21.8-14H(F)
						64:W21.8-14LH(F)

 Once you send the inquiry, pls send order code e.g.:R31-L-M-D-G-P-00-00-P.  Or pls send us following information so that we select select model: 

1.Media (sevice as)? co2 or?

2.atual inlet pressure and outlet pressure? 

3.Flow rate?

4.Inlet connection and out connection? 

5.Material or ss316?

6.Quantity?