Name:swing check valve vent control valve
The slow closing check valve is composed of the main valve and the control pipeline of the hydraulic control valve, and the closing time of the main valve can be adjusted.It is installed at the outlet of the water pump of the building water supply system. It is mainly used to prevent the backflow of the medium and can effectively reduce the impact and noise of the water hammer.
|1||BODY||DUCTILE IRON||EN GJS-500-7|
|2||SEAT||STAINLESS STEEL||AISI 304|
|7||COVER||DUCTILE IRON||EN GJS-500-7|
|9||SPRING||STAINLESS STEEL||AISI 304|
|12||SUPPORT RING||DUCTILE IRON||EN GJS-500-7|
|13||OBTURATOR||DUCTILE IRON||EN GJS-500-7|
|15||SEAL RING||STAINLESS STEEL||AISI304|
001.Hydraulic control, no external driving force.
002.The main valve has only one moving part and the failure rate is low.
003.Diaphragm structure, no friction, high control sensitivity.
004.The pressure behind the valve does not change with the change of the pressure in front of the valve.
005.The pressure behind the valve does not change with the change of system flow;
006.Good static pressure reduction effect;
007.Wide range of pressure regulation after valve;
1. *DN 125/350 use same internal as DN100/300
2. AISI 304 factory standard material, consult factory for AISI 316 material
|Design standard||CJ/T219, JB/T10674|
|Face spacing standard||GB/T12221|
|Inspection testing standard||GB/T13927|07.Operating principle
|Nominal diameter||DN50~DN400(2"~16") PN16|
The slow closing check valve is composed of the main valve and control pipeline of the hydraulic control valve and is installed at the outlet of the water pump of the building water supply system.When the pump is open, the water flow gives upward thrust to the disc of the main valve, and the upper chamber of the main valve drains out to open the main valve. The opening time of the main valve can be controlled by adjusting the opening size of the ball valve on the control pipe.When the pump is closed, the upward thrust at the disc disappears, and the water flows back to fill the cavity of the main valve, so that the main valve is closed. By adjusting the opening of the ball valve on the control pipe, the closing time of the main valve can be controlled.2.Factory tour
Q1.How about your delivery time?
A. Commonly, it is 5-10 days if in enough stock. It will takes about 20-30 days after receiving the deposit, the delivery time depends on the items and the order quantity.
Q2: Are you trading company or manufacturer ?
A: We are a manufacturer of hydraulic control valve,gate valve,butterfly valve,check valve,pressure reducing valve and other valve parts for Water plant, secondary water supply, municipal pipe network, reservoir, garbage treatment plant, subway and other industries in municipal engineering;Petrochemical, steel plant, power plant, shipbuilding and paper-making, bio-pharmaceutical, etc
Q3: Can you produce according to our own drawings?
A: Yes, please send your own drawing draft to us.OEM items are welcome.
Q4: Do you provide samples ? is it free or extra ?
A: Yes, we'd like to offer the sample for free charge but the freight will be on your charge.
Q5: Do you have agent or representative abroad?
A: We don't have any agents abroad up to now. If you have interests to join us as agent and enjoy more discounts.Just feel free to contact us then we can discuss more details.
Q6: Can we print the LOGO on products?
A: Yes, the OEM is available with the permission of our customers.
Q7. what is your payment term?
A: T/T or L/C,if you want any other way,please contact us.
Q8: what is your main market?
A:Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, North America, South America, and so on.
Q9: If products have some quality problem, how will you deal with?
A: We will be responsible for all the quality problems.
Q10: What can I get from cooperating with SUOTE VALVE?
A: 1. Special valves, with customized service.
2. Timely production and delivery, time is money.
3. Market protection service, long term business strategy.
More info pls just feel free to contact:
Stephen Sun|Sales Manager
Shanghai Suote Valve Co.,Ltd.
Add:No. 369,Maoting Road,Chendun Town,Songjiang District,Shanghai.