Check valves pneumatically operated

	Check valves pneumatically operated 2/2-way check valves, specially designed for automated industrial plant engineering. A low-price, compact, space-saving and reliable alternative to ball valves with a pneumatic rotary actuator. These valves have a full bore and - owing to the optimised design - only minimal flow losses. They are controlled by means of filtered compressed air.
	Body and valve trim:	Nickel-plated brass
	Spring:	Stainless steel
	Seal:	NBR or Viton
	Connection:	NAMUR interface, direct: 2 x G 1/8

	Operating conditions:
	Temperature:	-20 °C to +80 °C (NBR) -20 °C to +150 °C (Viton)
	Pilot pressure:	Min. 3 bar, max. 8 bar for double-acting actuator Min. 4.2 bar, max. 8 bar for single-acting actuator
	Operating pressure:	Max. 10 bar
	Mounting position:	Any
	More information:	Data sheets 12-3 (351.911 to 351.924) 12-4 (351.941 to 351.954)

351.912	Check valves, double-acting
	Art. No.	Port G	Seal	DN	H	L	Price €
	351.911	3/8	NBR	10	46.0	98	75,50
	351.912	1/2	NBR	15	51.7	112	82,70
	351.913	3/4	NBR	20	63.5	135	93,50
	351.914	1	NBR	25	69.0	143	107,40
	351.921	3/8	Viton	10	46.0	98	84,70
	351.922	1/2	Viton	15	51.7	112	92,70
	351.923	3/4	Viton	20	63.5	135	105,30
	351.924	1	Viton	25	69.0	143	121,00

351.942	Check valves, single-acting - spring to close
	Art. No.	Port G	Seal	DN	H	L	Price €
	351.941	3/8	NBR	10	46.0	98	83,25
	351.942	1/2	NBR	15	51.7	112	91,95
	351.943	3/4	NBR	20	63.5	135	104,50
	351.944	1	NBR	25	69.0	143	121,00
	351.951	3/8	Viton	10	46.0	98	92,70
	351.952	1/2	Viton	15	51.7	112	102,10
	351.953	3/4	Viton	20	63.5	135	116,35
	351.954	1	Viton	25	69.0	143	134,35

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