Henan Yunyu Mechanical Equipment Co., Ltd.
Model No.: YB20
Material: Stainless Steel
Connection Form: Flange
Pressure: Ordinary Temperature
Function: Nrvg Silence
Sealing Form: Gland Packings Globe Valve
Flow Direction: Reversing
Application: Water Industrial Usage, Industrial Usage
Size Range:: DN50~400
Packaging: standard export packaging
Place of Origin: China
HS Code: 8481
Butterfly Type Micro-resistance Slow Closing Check Valve
The butterfly type micro-resistance slow closing check valve can not only prevent the back flow of the medium, but also effectively limit the destructive water hammer and ensure the safety of the pipeline. Butterfly type micro-resistance slow closing check valve has a novel structure, small size, light weight, low fluid resistance, reliable sealing, smooth opening and closing,Angle Globe Valve, straight valve, Lifting Check Valve, Swing Check Valve,
Butterfly Valve,Stainless Steel Valve,
wear-resisting, long service life, oil pressure, slow closing without influence of medium, butterfly type micro resistance Slow closing check valve has better energy-saving effect characteristics.
quick close check valve overview
Fast closing check valve is mainly composed of valve body, valve seat, valve stem, spring, valve flap, guide sleeve and other parts. When the pump is turned on, the valve flap rises under the water bottom thrust, opens the valve, and the spring is quickly closed by the action of the spring force. When the water flow approaches 0, the valve flap is completely closed. No water flow phenomenon, at the same time because the water can not flow back, does not produce kinetic energy, it prevents the production of water hammer.
fast closed check valve Technical performance characteristics:
1. The main valve body of the quick-close check valve adopts a Y-type diaphragm structure, and the sealing pair is a non-metal seal; the valve is generally required to be installed horizontally, and the connection form with the pipeline is a flange connection, and the flange connection size is in accordance with the national standard GB. /T17241.6 implementation.
2. The quick-close check valve consists of valve body, valve cover, center shaft, copper sleeve, valve seat, valve flap and other major parts. It is achieved by controlling the up and down movement of the valve flap.
3. The quick-close check valve has the characteristics of automatic hydraulic control and can be interlocked with the pump. When the pump stops, it can quickly stop back and prevent the water hammer from acting.
4. Closed check valve sealing effect is good, to ensure that the valve leakage is zero leakage.
5. The body of the quick-close check valve adopts a Y-shaped streamlined structure and has a reasonable structure.
6. The quick-close check valve enables on-line maintenance.
7. Castings are cast using advanced casting techniques. Good surface finishes are to be applied. Paints shall be painted and the color of the finish shall be determined by the buyer.
Construction is as follows:
- Full Open, or Reduce Pore
- Piston Check
- Ball Check
- Swing Check
- Bolted Bonnet with spiral-would gasket, threaded and seal welded bonnet and threaded and pressure seal bonnet
- With or without counterweight
- Butt Weld Ends to ASME B16.25
- Flanged Ends to ASME B16.5 and B16.47 A/B
|Product name||Lifting Type Check Valve|
|Temperature Rating||-30~+425℃(Temperature range subject to the material of sealing and the property of medium)|
|Flange Drilling||GB DIN BS,etc.|
|Testing||Shell Test and Seal Test|
|Main Material||WCB,CF8,CF8M,CF3,CF3M,etc. (Other materials are available under request.|
Copyright © 2020 Henan Yunyu Mechanical Equipment Co., Ltd. All rights reserved.