Wafer Non Return Swing Flapper Check Valve

Basic Info.

Model NO.	h77
Material	CS, Ss, Brass, Chrome-Molybdenum Steel
Connection Form	Wafer
Structure	Swing
Pressure	Ordinary Pressure
Function	Nrvr Silence, Nrvz Silence, Nrvg Silence
Sealing Form	Rubber Sealing / Metal Sealing
Flow Direction	Unidirection
Standard	ANSI, API, DIN, BS, GB etc
Application	Industrial Usage, Water Industrial Usage
Certificate	ISO, CE
Pressure Rating	Pn10~Pn40(Cl150~Cl300)
Medium Applicable	Water, Oil, Medium Containing Acid or Alkali
Finish	Epoxy Resin Coating/ Fine Polish
Sealing	Rubber Sealing/ Metal Sealing
Transport Package	Bubble Plastic Paper + Plywood Case
Specification	DN80 ~ DN1000
Trademark	KARFAR
Origin	China
HS Code	84813000
Production Capacity	5.000PCS/Month

Product Description

Wafer End Spring Loaded Non Return Check Valve
Model NO.: H77H/Y-C, H77X, H77W

Δ Simple and compact structure. Δ Light weight Δ Smooth on&off Δ Easy assembly and maintenanceΔ Reliable sealing performance.Δ Zero leakage tightness with 20000 times on&off service lifeΔ Minimized resistance with streamline structureΔ Offset structure disc has small torque. The short closing distanace of the disc leads to quick close and non-slam quite effect.


Technical standards: 1) Design and manufacture: API 6D 2) Face-to-face: ANSI B16.10 3) Flange end: ANSI B16.5 4) Inspection and test: API 598



Optional choice, equiped with an adjustable damper (slow shut function)

Medium applicable	Water, Oil, Medium containing acid or alkali
Main material	CAST IRON, ASTM A216 WCB, WCC, WC6, SS304, SS316, CF8, ETC.
Temperature applicable	≤250ºC
Nominal Pressure	PN10~PN40(CL150~CL300)
Nominal Diameter	DN80-DN1000
Face to Face Length	ANSI B16.10, API594,BS5155, ISO5752, DIN3352 etc.

Wafer End Check Valve Group Show