Dual stage pressure regulator for HP & UHP gases - RX3900

RX3900 is a dual stage pressure regulator for HP & UHP applications. Pressure reduction with the lowest supply pressure effect.

Key advantages

Supply pressure effect is close to zero
Life duration according to CGA E4
Vacuum to 310 bar (4,500 psig) inlet
Assembling, testing & packaging in cleanroom: Class ISO 4
Individual serial number for full traceability
Electropolished surface per SEMI F19 UHP Grade
UHP Material - Semi F20 option available

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CONSTRUCTION MATERIAL

	Parts	Material
Wetted parts	Body	SS 316L, UHP Material - Semi F20
	Seat	PCTFE, Polyimid (mandatory for 310 bar / 4500 psig inlet pressure)
	Diaphragm	SS 316L (Hastelloy® optional)
	Poppet	SS 316L (Hastelloy® optional)
	Spring	SS 316L (Hastelloy® optional)
	Spring Holder	SS 316L
Non-wetted parts	Bonnet	SS 303
	Handwheel	PA 6.6
	Others	Stainless Steel and Brass

SURFACE FINISH

S	V	U
Ra 0.4 μm (15 μin)	Ra 0.25 μm EP (10 μin)	Ra 0.13 μm EP (5 μin)

Flow capacity (Cv)	0.09
Supply pressure effect I*	0.001

_{*1 bar / 100 bar inlet pressure change}

FLOW CURVES

RX3900

RX3900 - Supply pressure effect

Specifications

Max inlet pressure	240 / 310 bar (2,500 / 4,500 psig)
Outlet Pressure	0.7 / 2 / 4 / 7 / 10 bar (10 / 30 / 60 / 100 / 150 psig)
Regulator type	Tied diaphragm
Burst pressure	300% of operating pressure
Proof pressure	150% of operating pressure
Temperature range	-20°C to +65°C (-4°F to +149°F)
Certified max. helium outboard leak rate	≤ 1 x 10-9 mbar.l/s
Certified max. helium across the seat leak rate - at max. pressure	≤ 1 x 10-8 mbar.l/s
Certified max. helium inboard leak rate - at max. pressure	≤ 1 x 10-9 mbar.l/s

Dimensional drawings

Product Configurator

	Regulator type	Outlet Pressure	Seat material	Cv value	Body material	Surface finish	Porting configuration	Connections	Actuation	Inlet pressure	Options
RX	39	01	K	009	S	S	2W1	4F	M	240	H
	Double stage (Tied diaphragm) 39	0.7 bar (10 psig) 01 2 bar (30 psig) 02 4 bar (60 psig) 04 7 bar (100 psig) 07 10 bar (150 psig) 10	PCTFE K Polyimid V	0.09 009	Stainless Steel AISI 316L S UHP Material - Semi F20 V	Ra 0.4 μm (15 μin) S Ra 0.25 μm EP (10 μin) V Ra 0.13 μm EP (5 μin) U	2 ports 2W1 3 ports 3W4 4 ports 4W6	1/4” Female VCR 4F 1/4” Male VCR 4M	Handwheel M	240 bar (3,500 psig) 240 310 bar (4,500 psig)* 310	Hastelloy Trim H Gauge (bar/PSI)* PG0 Gauge (MPa)*** PG1

I am interested

* Polyimid mandatory for 310 bar (4,500 psig) inlet pressure
** Includes Hastelloy C22 Poppet, wetted spring & diaphragm
*** Standard gauge ports are Metal Face Seal ¼\" Male

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