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Zhejiang Guanlong Machinery Valve Co., Ltd.

Check Valve, Valve, Butterfly Check Valve manufacturer / supplier in China, offering Slow Shut Check Valve (HH49), Wafer Insert Vertical Elevated Lift Type Non Return Check Valve (H72H), Wafer Silent One Way Non Salm Non Return Check Valve and so on.

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Slow Shut Check Valve (HH49)

This product is currently unavailable, but you may contact the supplier directly, for further interest.
Basic Info
  • Model NO.: HH49
  • Connection Form: Flange
  • Seal Form: Force Sealed
  • Work Pressure: Low Pressure (Pn<1.6mpa)
  • Material of Seal Surface: Soft Sealed
  • Application: Industrial Usage, Water Industrial Usage, Household Usage
  • Trademark: guanlong
  • Origin: China
  • Driving Mode: Manual
  • Structure: Single-Eccentric Sealing
  • Valve Stem: Normal
  • Working Temperature: Normal Temperature (-40°C<T<120°C)
  • Valve Body: Casting
  • Certificate: ISO
  • Specification: ISO9001: 2000
Product Description
Size: 2"--80" or DN50--2000mm
Pressure: PN: 1.0--2.5MPa or Class: 150--300lbs
Material: Cast iron, cast steel, carbon steel, stainless steel.
Technical standard: APT 6D, APT 598, ANSI B 16.10, ANSI B 16.5
Applicable Medium: Oil, water, etc.

1. This valve is featured by orginal structure, reasonable design, small profile. Lightweight, outstanding sealing performance, strong circulating capability, little flow resistance, slow shut, noise elimination, no vibration and noise.

2. Functioned to effect optimal time for slow shut and for eliminating water hammer according to different occasions, this valve is mainly used in water supply and drainage pipeline in high-rises and fire control system, and mounted at the outlet of pump to cut off backflow of medium, eliminate destructive water hammer, ensure the safe operation of pipeline and pump, and actualize distinguished energy-saving effect.
Suitable MediumWater, Oil, Gas and etc.
Main materialGrey Cast Iron, Ductile Cast Iron, Carbon Steel, Alloy Cast Iron
Suitable Temperature≤80
Nominal Pressure150lb--900lb
Nominal Diameter2"--48"
Flange DimensionBS4504, ISO2531, ISO7005 and other standards conforming to the requirements
Face to Face LengthBS5155, ISO5752, DIN3352 and other standards conforming to the requirements

Slow Shut Check Valve (HH49)
Slow Shut Check Valve (HH49)

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