PriceList for Stainless Steel Screw - Backflow Butterfly Valve – Kingnor
PriceList for Stainless Steel Screw - Backflow Butterfly Valve – Kingnor Detail:
Backflow Butterfly Valve
Approval: UL/ULC listed
Usage: Before sprinkle head, before and after wet alarm valve and deluge valve, high-rising building fire fighting system, industrial factory building fire protection system.
Technical specification :
Fire protection grooved Butterfly Valve is UL/ULC listed with pressure rating 300psi or 175psi
Temperature range : -20℃ to 120℃.
Structure:Butterfly type and groove end
Application : Indoor and outdoor usage
Double –seal disc : resilient EPDM coated
Factoroy Installed supervisiory tamper switch assembly
Design standard : API 609
Groove standard ANSI/AWWA C606
Top flange standard: ISO 5211
Test standard: API 598
Model : HGD-381X / HGD-381X-175/HFGD-381X/HFGD-381X-175
Product detail pictures:

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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate inside our success for PriceList for Stainless Steel Screw - Backflow Butterfly Valve – Kingnor, The product will supply to all over the world, such as: Finland , Thailand , Comoros , We hope we can establish long-term cooperation with all of the customers. And hope we can improve competitiveness and achieve the win-win situation together with the customers. We sincerely welcome the customers from all over the world to contact us for anything you need!
The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.





