Combined Butterfly-Check Valve

Description

Combined Butterfly-Check Valve

Zeco Combined Butterfly-Check Valve is used for the inlet pipe of pump outlet and turbine.

Application

Product Scope: NPS 20” ~ NPS56” , 10bar ~ 16bar

Features:

Full Pipe Size Flow Area

Absolutely Reliable, Gravity-powered Closing System & Hydraulic Control System

Two-Speed Closing Action Prevents Surge Pressures

The Valve can be Opened Using an Emergency Hand Pump

Prevent Pump from Reversing when Power Cut

Face to Face Dimensions:AMSE B16.10

Flange End Dimension :AMSE B16.10

Coating: Fusion Bonded Epoxy Coating

Inspection and Test：API 598 / ISO 5208 / EN 12226-2

Part	Material	EN Spec.
Body	Ductile Iron	EN-JS1050
Heavy Punch	Ductile Iron	EN-JS1050
Disc/Stem	Stainless Steel 420 Stainless Steel 431	BS970 420S37 BS970 431S29
Hydraulic Power Pack	Siemens or others	Commercial
For materials options not listed,consult factory. Zeco manufactures valves in more than 50 different alloys.