R21 Regulator

R21 is stable, has a long life and good service options, shows the exact pressure and have great flexibility with regard to connection and various gas types.

Here we have listed the most common varieties, but we manufacture R21 with countless other configurations.

Comes as standard with 3/8" outlet with hose sleeve (for low pressure) or connection head Ø6x1mm (for high pressure).

Cylinder Pressure Regulators:
GA Article no.	Gas	Inlet connection	Working pressure, maximum	Outlet gauge grading	Safety valve, opening pressure, minimum
Inlet pressure max 20 bar, Content gauge grading 0-25 bar:
V-121K74	Propane	.885-14NGO-LH	1 bar	0 - 2,5 bar	1,7 bar
V-121K71	Propane	.885-14NGO-LH	3,5 bar	0 - 6 bar	4,5 bar
V-121K018	Thermolene	W21,8 LH male	4 bar	0 - 6 bar	4,5 bar
V-121K017	Propane	.885-14NGO-LH	10 bar	0 - 16 bar	-
V-121K73	Thermolene	W21,8 LH male	10 bar	0 - 16 bar	-
Inlet pressure max 30 bar, Content gauge grading 0-40 bar:
V-121K011	Acetylene	3/4"	1,5 bar	0 - 2,5 bar	1,7 bar
O-42.081	SF6	W21,8	10 bar	0 - 16 bar	11 bar
Inlet pressure max 230 bar, Content gauge grading 0-315 bar:
V-121K091	Nitrogen	W24,32	0,7 bar	0 - 1 bar	0,7 bar
V-121K08	Oxygen	W21,8	1 bar	0 - 2,5 bar	1,7 bar
V-121K08C	CO2	W21,8	1 bar	0 - 2,5 bar	1,7 bar
V-121K09	Nitrogen	W24,32	1 bar	0 - 2,5 bar	1,7 bar
V-121K092	Argon/Mison	W24,32	1 bar	0 - 2,5 bar	1,7 bar
V-121K10	Hydrogen	W21,8 LH	1 bar	0 - 2,5 bar	1,7 bar
V-121K11	Air	5/8"	1 bar	0 - 2,5 bar	1,7 bar
V-121K12	Oxygen	W21,8	3,5 bar	0 - 6 bar	4,5 bar
V-121K12C	CO2	W21,8	3,5 bar	0 - 6 bar	4,5 bar
V-121K13	Nitrogen	W24,32	3,5 bar	0 - 6 bar	4,5 bar
V-121K14	Hydrogen	W21,8 LH	3,5 bar	0 - 6 bar	4,5 bar
V-121K15	Air	5/8"	3,5 bar	0 - 6 bar	4,5 bar
V-121K02	Oxygen	W21,8	10 bar	0 - 16 bar	11 bar
V-121K03	Nitrogen	W24,32	10 bar	0 - 16 bar	11 bar
V-121K04	Hydrogen	W21,8 LH	10 bar	0 - 16 bar	11 bar
V-121K041	Methane	W21,8 LH	10 bar	0 - 16 bar	11 bar
V-121K05	Air	5/8"	10 bar	0 - 16 bar	11 bar
V-121K06	CO2	W21,8	10 bar	0 - 16 bar	11 bar
V-121K07	Argon/Mison	W24,32	10 bar	0 - 16 bar	11 bar
V-121K16	Nitrous Oxide	3/8"	10 bar	0 - 16 bar	11 bar
O-42.070	SF6	5/8"	10 bar	0 - 16 bar	11 bar
O-42.0405	Nitrogen	W24,32	16 bar	0 - 25 bar	24 bar
O-42.0410	Oxygen	W21,8	16 bar	0 - 25 bar	24 bar
O-42.040	Nitrogen	W24,32	28 bar	0 - 40 bar	35 bar
O-42.0400	Argon/Helium	W24,32	28 bar	0 - 40 bar	35 bar
O-42.0401	Oxygen	W21,8	28 bar	0 - 40 bar	35 bar
O-42.0402	Hydrogen	W21,8 LH	28 bar	0 - 40 bar	35 bar
O-42.0403	Air	5/8"	28 bar	0 - 40 bar	35 bar
O-42.0406	CO2	W21,8	28 bar	0 - 40 bar	35 bar
O-42.068	Nitrogen	W24,32	40 bar	0 - 60 bar	50 bar
O-42.068K01	Oxygen	W21,8	40 bar	0 - 60 bar	50 bar
O-42.068K02	Air	5/8"	40 bar	0 - 60 bar	50 bar
O-42.068K03	CO2	W21,8	40 bar	0 - 60 bar	50 bar
O-42.068K014	Hydrogen	W21,8 LH	50 bar	0 - 100 bar	60 bar
O-42.0602	Oxygen	W21,8	60 bar	0 - 100 bar	65 bar
O-42.0603	CO2	W21,8	60 bar	0 - 100 bar	65 bar
O-42.0604	Argon/Helium	W24,32	60 bar	0 - 100 bar	65 bar
O-42.0801	Air	5/8"	60 bar	0 - 100 bar	65 bar
O-42.0802	Nitrogen	W24,32	60 bar	0 - 100 bar	65 bar
O-42.080	Nitrogen	W24,32	70 bar	0 - 100 bar	75 bar
V-121K81	Oxygen	W21,8	200 bar	0 - 315 bar	-
V-121K812	CO2	W21,8	200 bar	0 - 315 bar	-
V-121K82	Nitrogen	W24,32	200 bar	0 - 315 bar	-
V-121K83	Hydrogen	W21,8 LH	200 bar	0 - 315 bar	-
V-121K84	Air	5/8"	200 bar	0 - 315 bar	-

Cylinder Pressure Regulators with Flowmeters:
GA Article no.	Gas	Specifications
V-121K32	CO2	Flowmeter, 1-30 l/min. Other key data same as for V-121K06
V-121K343	Nitrogen	Flowmeter, 1-15 l/min. Other key data same as for V-121K091
V-121K344	Hydrogen	Flowmeter, 1-15 l/min.
V-121K346	Nitrogen	Flowmeter, 1-30 l/min. Other key data same as for V-121K03
V-121K347	Hydrogen	Flowmeter, 1-30 l/min. Other key data same as for V-121K04
V-121K34	Argon/Helium	Flowmeter, 1-30 l/min. Other key data same as for V-121K07
V-121K35	CO2	Flowmeter, 1-15 l/min. Other key data same as for V-121K06
O-42.075	Argon/Mison	Flowmeters, 2 x 1-30 l/min. Other key data same as for V-121K07
V-121K47	Argon/Mison	Flow gauge 0-28 l/min. Other key data same as for V-121K07
V-121K96	Argon/Mison	Flow gauge 0-50 l/min. Other key data same as for V-121K07

Regulators for USS:
GA Article no.	Gas	Working pressure, maximum
V-121K09U	Nitrogen	1 bar
V-121K05U	Air	10 bar
O-42.0405U	Nitrogen	16 bar
O-42.04051U	Nitrogen	1,4 Mpa
O-42.040U	Nitrogen	28 bar
O-42.068U	Nitrogen	40 bar
O-42.0681U	Nitrogen	4 Mpa

Manifold regulators (with evacuation pipe connected to the safety relief valve):
GA Article no.	Gas	Working pressure, maximum	Inlet connection	Outlet connection
Straight Outlet:
V-121K511	Acetylene	1,5 bar	W21,8 LH	R1/2" LH
V-121K521	Oxygen	10 bar	W21,8 RH	R1/2" RH
V-121K531	Nitrogen	16 bar	W21,8 RH	R1/2" RH
V-121K532	Nitrogen	10 bar	W24,32	R1/2" RH
V-121K571	Argon/Mison	10 bar	W21,8 RH	R1/2" RH
V-121K581	Hydrogen	10 bar	W21,8 LH	R1/2" LH
V-121K591	Propane/Thermolene	4 bar	W21,8 LH	R1/2" LH
V-121K592	Propane	4 bar	.885-14NGO-LH	G1/2" RH
Angled Outlet and with Valve Spindle Assembly (as for Cylinder Pressure Regulators):
V-121K51	Acetylene	1,5 bar	3/4"	G3/8" LH
V-121K52	Oxygen	10 bar	W21,8 RH	G3/8" RH
V-121K53	Nitrogen	16 bar	W24,32	G3/8" RH
V-121K57	Argon/Mison	10 bar	W21,8 RH	G3/8" RH

Outlet point regulators:
GA Article no.	Gas	Inlet connection	Outlet connection	Description
V-121K61	Acetylene	G3/4"	G3/8" LH	no gauges
V-121K611	Acetylene	3/8" LH	G3/8" LH	no gauges
V-121K62	Oxygen	W21,8 RH	G3/8" RH	no gauges
V-121K621	Oxygen	3/8" RH	G3/8" RH	no gauges
V-121K662	Nitrogen	3/8" RH	-	200-3,5 bar
V-121K70	Propane	3/8" LH	G3/8" LH	no gauges

Custom regulators:
GA Article no.	Gas	Working pressure, maximum	Description
V-121K031	Nitrogen	14 bar	W21,8 inlet
V-121K051	Air	12 bar	Lockable adjustment screw (no hand wheel) and no valve spindle assembly
V-121K052	Air	7 bar	Lockable adjustment screw (no hand wheel)
V-121K062	CO2	10 bar	Straight outlet with G1/2"
V-121K33	Argon/Mison	10 bar	Straight outlet with 1/8" hose sleeve - otherwise like V-121K07
V-121K811	Oxygen	200 bar	Straight outlet with W21,8 - otherwise like V-121K81
O-42.037	Air		Oil bearing, no gauges or spigots
O-42.0404	Air	28 bar	Straight outlet with G1/2"
O-42.042	Argon/Helium	28 bar	1/4" outlet - otherwise like O-42.0400
O-42.044	Air	28 bar	Straight outlet with G3/8"
O-42.046	Air		G3/8" female inlet, straight outlet, no gauges
O-42.051	Nitrogen		Short W21,8 inlet, straight outlet, no outlet gauge
O-42.053	Nitrogen	30 bar	Straight outlet, rotated gauges
O-42.060	Nitrogen	60 bar	Adjustment screw with cross pin (no hand wheel) - otherwise like O-42.0802
O-42.068K08	Air	40 bar	Straight outlet with G1/2"
O-42.082	SF6		W21,8 inlet, 40 bar content gauge, no outlet gauge
O-42.083	SF6		G3/8" inlet, 40 bar content gauge, no outlet gauge

R21 is distributed by GCE.