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Zhejiang Guanlong Machinery Valve Co., Ltd.

Buffer Check Valve, Damper Check Valve, Hydraulic Valve manufacturer / supplier in China, offering Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H), Multiple Spraying Holes Type Multi-Functional Axial Plunger Control Valve (GLH942X), Multiple Spraying Holes Multifunctional Axial Flow Plunger Control Valve (GLH642X) and so on.

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Supplier Homepage Product Check valve / Non-return valve Buffer Type Check valve Hydraulic Pneumatic Actuation Non Return Check Valve (HD743H, HD647H)

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

FOB Price: US $200-500 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $200-500/ Piece
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Port: Ningbo, China
Production Capacity: 2000 PCS / Month
Payment Terms: L/C, T/T

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Product Catalog
Flanged End Check Valve
34 Products
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Basic Info
  • Model NO.: HD743H, HD647H
  • Connection Form: Flange
  • Pressure: Ordinary Pressure
  • Sealing Form: Stainless Steel
  • Standard: ANSI, API, DIN, BS, GB etc
  • Temperature Applicable: ≤250ºC (Transient State ≤300ºC)
  • Pressure Rating: Pn10, Pn16, Pn25, Pn40 (Cl150, Cl300)
  • Transport Package: Bubble Plastic Paper + Plywood Case
  • Origin: China
  • Material: Cast Steel
  • Structure: Swing
  • Function: Nrvr Silence, Nrvz Silence, Nrvg Silence
  • Flow Direction: Unidirection
  • Application: Industrial Usage, Water Industrial Usage
  • Medium Applicable: Water, Flammable Gas, Air
  • Trademark: KARFAR
  • Specification: DN400 ~ DN1600
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
BodyDiscStemSealingBuffer
MaterialWCBWCB45#
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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