• Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)
  • Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)
  • Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)

Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)

Material: Cast Steel
Connection Form: Flange
Structure: Swing
Pressure: Ordinary Pressure
Function: Nrvr Silence, Nrvz Silence, Nrvg Silence
Sealing Form: Stainless Steel
Customization:

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Basic Info.

Model NO.
HD743H, HD647H
Flow Direction
Unidirection
Standard
ANSI, API, DIN, BS, GB etc
Application
Industrial Usage, Water Industrial Usage
Temperature Applicable
≤250ºC (Transient State ≤300ºC)
Medium Applicable
Water, Flammable Gas, Air
Pressure Rating
Pn10, Pn16, Pn25, Pn40 (Cl150, Cl300)
Transport Package
Bubble Plastic Paper + Plywood Case
Specification
DN400 ~ DN1600
Trademark
KARFAR
Origin
China
Production Capacity
2000 PCS / Month

Product Description

MODEL NO. DH743H (Hydraulic Actuator) / HD647H (Pneumatic Actuator)
Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H) Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)
 
PART
NAME
Body Disc Stem Sealing Buffer
Material WCB WCB 45#
or
2Cr13
Stainless
 steel
Stainless steel
Note: sealing is multi-layers

The KARFAR model HD743H / HD647H is a butterfly type check valve with triple offset structure. It is equipted with auxiliary hydraulic and pneumatic closing device. It is mianly composed of body, disc, damping cylinder, solenoid directional valve, buffer, weight hammer and stem. It is suitalbe for pipelines of water, air, flammable gas with temperature ≤ 250ºC( transient temperature less than 300ºC); Pressure ≤1.0Mpa. The valve is opened by the pressure difference between inlet and outlet sides. And it is automatically closed by the weight of the disc & the hammer to a certain degree and finally cosed by pneumatic device. The buffer can control the closing speed. Due to the triple offset stucture, the friction is reduced during opening and closing action so as to improve sealing effect and increase service life. Buffer prevents slamming impact and vibration from pressure surge so improves serivce life.

Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)
Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)
 

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