Non return Check Valve

To minimize pipeline pulses (water hammer), generated by a pump trip out, by closing rapidly in the reverse flow direction. It is mainly used with Pump Control Valves in mine dewatering applications.

Description	Unit
Face to face dimensions	Refer to valve dimensions and schematics
Pressure rating	250 bar (max) working pressure
Body design	In-line
Design specification	ANSI B16.34
Valve configuration	Nozzle type – taper poppet & seat

Size	80NB	100NB	150NB	200NB	250NB	300NB
Minimum operating pressure	10 bar	10 bar	10 bar	10 bar	10 bar	10 bar
Design flow rate	35 ℓ/sec	60 ℓ/sec	100 ℓ/sec	180 ℓ/sec	270 ℓ/sec	380 ℓ/sec

Stainless steel body and internals with UHMWPE seals
Rapid closure in reverse flow direction
High sealing integrity and high dirt tolerance
Wafer type – flanges can be fitted on request to client specification
Flanges and face dimensions can be altered to suit custom specifications

Non return Check Valve

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