Micro resistance counter weight soft close check valve

Brief introduction:

This counter weight nozzle buffer swing check valve is a valve which is automatically opened and closed by the flow of the medium itself and used to prevent the reverse flow of the medium,and eliminate destructive water hammer.

Features:

1.Light valve disc, opening in big way, the remarkable electricity saving, low flow resistance

2.The design of water hammer elimination is novel

3.The sealing is stable, wear resistance, long service life, no vibration, no noise.

Specification:
For BS 4504 BS EN1092-2 PN10 / PN16/ PN25 flange mounting.
Face-to-Face dimension conforms to ISO 5752 / BS EN558.
Epoxy fusion coating.

Pressure and Temperature ratings:

Materials

 technical parameter
inside nominal diameter : DN50 ~ DN300(2''~24")
Nominal pressure : PN16
working temperature : -5ºC--85ºC
Pressure  Testing :
-Shell : PN*1.5
-Seal : PN*1.1
Applicable medium : water ,sewage
Part Descripition 
1- Body/Bonnet: GGG40/50
2- Stem: SS420/431
3- Bolts/Nuts: SS304
4- DISC: GGG40/50 + EPDM Coating
5- Epoxy Resin coating internal & external, thickness above 300 micron
6- Flanged acc to BS4504, ISO 7005. Face to Face acc. to BS 5153,DIN 3352
7- Work pressure: PN10/16; Size range: 1",1 1/2", 2" to 24"

Technical data:

Sales service:

Product advantages:

MANUFACTURING PROCESS

FAQ

Q: What's payment term ?

A: We have flexible payment term ,L/C ,T/T ,D/P etc

Q: Can I check quality of goods before delivery?

A: Yes, either you or your company colleagues, or a third party is welcome to our factory to do the inspection before delivery.

Q: How can I get a sample from you?

A: If we have stock for the models you need, we can send you our stock sample FOC. But if you need your own design, sampling cost will be charged, and for both ways, the courier freight needs to be covered by you. And samples can be sent through Fedex, UPS, TNT, DHL, ect.