Hydraulic Non-Slam Check Valve
Price : US $1 - 3,000 / Set
Basic Information of Hydraulic Non-Slam Check Valve
This valve prevents backflow of media and reduces water hammer to achieve the safe and quiet effect. download Dof960 series of cases
Features of Hydraulic Non-Slam Check Valve
1. Small fluid resistance, large flow;
2. Automatic control using medium energy;
3. Prevent water hammer phenomenon;
4. Slowly-closing silencing.
Principle of Hydraulic Non-Slam Check Valve
When the pipe supplies water from the inlet end of the valve, the water from the needle valve and one-way valve enters the valve cover control room and then is discharged downstream through the ball valve. Due to the small opening of the needle valve, the discharge speed of the control room is greater than that of the inlet to replenish water, thus reducing the pressure in the control room. The inlet pressure acting under the main valve disc all the time lifts the main valve disc, thereby opening the main valve disc and supplying water downstream. When the pipeline stops supplying water, the downstream water begins to flow back. Due to the effect of the one-way valve, the backflow water cannot flow out after entering the valve cover control room through the ball valve. As a result, the pressure of the valve cover control room increases gradually and the main valve disc is closed tightly.
Installation and Commissioning of Hydraulic Non-Slam Check Valve
Needle valve and ball valve adjust together to get the best opening or closing speed. For specific use, please consult ZECO Valve Group.
Part |
Material |
Standard |
Body |
Ductile Iron |
EN 1563/DIN 1693 |
Bonnet |
Ductile Iron |
EN 1563/DIN 1693 |
Trim |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
Seat |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
Diaphragm |
EPDM / NBR |
ISO 4633 |
Pilot Valve |
Stainless Steel 431 |
EN10088-1/ASTM A959 |
For the materials options not listed, consult factory. ZECO manufactures valves in more than 50 different alloys. |
Product scope , Standards & Materials of Hydraulic Non-Slam Check Valve
Size Range: 2"~24"
Pressure Rating: 10bar ~ 25bar
Face to Face Dimensions: AMSE B16.10, EN558-1
Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2
Coating: Fusion Bonded Epoxy Coating
Inspection and Test: ISO 5208 / EN 12226-2
Zhengfeng Valve Group Co., Ltd. is a professional non slam check valve suppliers, hydraulic check valve manufacturers and non slam check valve manufacturer. We provide Control Valve, Balancing Valve, check valve china, anti slam check valve, non slam swing check valve, wafer type non slam check valve and so on. Want to know about non slam check valve meaning? Please contact us.
Contact : Zhao Johnson, 86 21 39597277
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