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Zhejiang Guanlong Machinery Valve Co., Ltd.

Fast Close Check Valve, Non Slam Check Valve, API Check Valve manufacturer / supplier in China, offering Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot, 2/3 Way Solenoid Valve DC24V/AC220V, Globe Double Chamber Adjustable Pressure Regulating Pressure Reducing Valve (Yx741X) and so on.

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Supplier Homepage Product Check valve / Non-return valve Lift type check valve Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot

Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot

Purchase Qty.:
(Pieces)
1-9 10+
FOB Unit Price: US $140 US $120
Purchase Qty. (Pieces) FOB Unit Price
1-9 US $140
10+ US $120
Get Latest Price
Port: Ningbo, China
Production Capacity: 2000PCS/Year
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: GL30XB
  • Connection Form: Flange
  • Pressure: Ordinary Pressure
  • Sealing Form: Soft Seat Ring & Metal Seat
  • Standard: ANSI, API, DIN, BS, GB etc
  • Certificate: ISO, Ce
  • Trademark: KARFAR
  • Specification: DN50 ~ DN1800
  • Material: Ci, Di, CS, Ss etc
  • Structure: Elevated
  • Function: Nrvz Silence, Nrvg Silence
  • Flow Direction: Unidirection
  • Application: Industrial Usage, Household Usage
  • Pressure Rating: Pn10, Pn16, Pn25 (MPa1.0--2.5 or Class 150--300lbs
  • Transport Package: Bubble Plastic Paper + Plywood Case
  • Origin: China
Product Description
Slow Opening Fast Shut Check Valve
MODEL NO. GL30XB


Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with PilotSlow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot

                Diaphram type                                                                    Piston type

Δ  The KARFAR Model GL30XA Slow open Slow shut check valve is multifunctional valve. It opens slowly and shut slowly to eliminate water hammer and prevent back flow. Single set of GL30XA can function to replace non-return valve, electric control valve and pressure surge eliminator. It is often mounted at the outlet side of the pump. In response to pilot signal, it slowly opens when the pump starts up. During the operation, the valve is fully opened under medium pressure, Since the chamber is connected with air, water loss is nearly none. When pump stops working, the valve slowly shuts to avoid pressure surge and slamming noise.

Δ low water loss, nearly zero. Controlling pressure less than 0.05Mpa and coefficient of shock resistance is less than 1.0Mpa.

Δ When pump stops working, the valve rapidly 100% closes within 0.5 second avoiding pressure surge and slamming noise.

Δ It isolates the pump from the system during pump starting: When pump starts up, the valve is closed. When the pressure rises to the preset value, the valve slowly opens so as to avoid damage on the pump engine  from extra large currency.
 
Medium appliableWater, Oil etc.
Main materialDuctile iron, WCB, Stainless steel etc.
Suitable Temperature≤80ºC
Nominal PressurePN10--PN25
Nominal DiameterDN50--DN1800
Flange DimensionASME B16.5, BS4504, ISO2531, ISO7005 etc
Face to Face LengthAPI594,BS5155, ISO5752, DIN3352 etc

please specify whether Diaphgram type or Piston type when place order.


We also manufacture as per your request or drawing.
company website: http://en.chinaguanlong.net/
Tel: +86-577-67379225
Fax: +86-57767318107


Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot
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