China OEM Fire Protection Gate Valve - DSV/DSL PILOT OPERATED CHECK VALVES – Hanshang Hydraulic

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China OEM Fire Protection Gate Valve - DSV/DSL PILOT OPERATED CHECK VALVES – Hanshang Hydraulic Detail:

DSV/DSL pilot operated check valves allow free flow in one direction and block flow in the counter direction to maintain pressure. The oil is allowed to flow in the counter direction when the X port is connected.DSV is designed for internally drained. DSL is designed for externally drained.

Size	DSV10	DSL10	DSV20	DSL20	DSV30	DSL30
Port X pilot volume(cm 3 )	2.2		8.7		17.5
Port Y volume(cm 3 )	—	1.9	—	7.7	—	15.8
Direction of flow	Free from A to B;From B to A by opening
Operating pressure(Mpa)	31.5
Pilot control pressure range(MPa)	0.5-31.5
Max .flow rate(L/min)	80		150		300
Weight(KGS)	2.5	2.3	4.3	4.6	8.5	9.2
Valve body（Material）Surface treatment	Steel Body Surface Black Oxide
Oil cleanliness	NAS1638 class 9 and ISO4406 class 20/18/15

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China OEM Fire Protection Gate Valve - DSV/DSL PILOT OPERATED CHECK VALVES – Hanshang Hydraulic, The product will supply to all over the world, such as: , , ,

4a Pneumatic Control Valve