Slow Opening Fast Shut Check Valve (GL30XB) Non Slam Non Return with Pilot
|FOB Unit Price:||US $140 US $120|
|Purchase Qty. (Pieces)||FOB Unit Price|
|Payment Terms:||L/C, T/T|
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- 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
MODEL NO. GL30XB
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 appliable||Water, Oil etc.|
|Main material||Ductile iron, WCB, Stainless steel etc.|
|Flange Dimension||ASME B16.5, BS4504, ISO2531, ISO7005 etc|
|Face to Face Length||API594,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/