The Model 520 Combination Pressure Reducing and Pressure Sustaining Valve
automatically performs two independent functions. It maintains a constant downstream pressure, regardless of fluctuating demand and sustains the upstream pressure to a pre-determined minimum.The pressure reducing control responds to slight variations in downstream pressure and immediately repositions the main valve to maintain the desired downstream pressure. The pressure sustaining control is normally held open by the upstream pressure,but modulates should the pressure drop to the control set point.This, in turn, modulates the main valve to sustain the desired upstream pressure.
Packing & Shipping
Packaging: Conventional Packaging suitable for by sea or long distance transportation.
Shipping: 20-45 working days after receiving the deposit of the devices
Company information:
Shanghai Tongke flow technology Co., Ltd. is a professional technology and energy-saving products R & D, product the high efficiency pump , vertical turbine pump , self priming pump ,movable pump station , and energy saving service of the national high-tech enterprises. Belong to Tongji University High-Tech Park and there is three industrial bases located in Shanghai, Dalian and Jiangsu.
Quality guarantee
Shanghai Tongke flow technology Co., Ltd. always foucs on the Technology design, The company's gist is different operation and the goal is the high-quality, high-performance products. We strive to become a trustworthy professional automobileseat cushion company. We passed the TUV registed ISO 9001 and products is passed SGS inspection.
International Certificate
Services for valves
1.one year guarantee for whole machine except for wear parts;
2.24 hours technical support by email;
3.calling service;
4.user manual available;
5.reminding for the service life of the wearing parts;
6.installation guide for clients from both China and abroad;
7.maintance and replacement service;
8.whole process training and guidance from our technicians.
Your call and mail is welcome at any time for our valves
automatically performs two independent functions. It maintains a constant downstream pressure, regardless of fluctuating demand and sustains the upstream pressure to a pre-determined minimum.The pressure reducing control responds to slight variations in downstream pressure and immediately repositions the main valve to maintain the desired downstream pressure. The pressure sustaining control is normally held open by the upstream pressure,but modulates should the pressure drop to the control set point.This, in turn, modulates the main valve to sustain the desired upstream pressure.
Packing & Shipping
Packaging: Conventional Packaging suitable for by sea or long distance transportation.
Shipping: 20-45 working days after receiving the deposit of the devices
Company information:
Shanghai Tongke flow technology Co., Ltd. is a professional technology and energy-saving products R & D, product the high efficiency pump , vertical turbine pump , self priming pump ,movable pump station , and energy saving service of the national high-tech enterprises. Belong to Tongji University High-Tech Park and there is three industrial bases located in Shanghai, Dalian and Jiangsu.
Quality guarantee
Shanghai Tongke flow technology Co., Ltd. always foucs on the Technology design, The company's gist is different operation and the goal is the high-quality, high-performance products. We strive to become a trustworthy professional automobileseat cushion company. We passed the TUV registed ISO 9001 and products is passed SGS inspection.
International Certificate
Services for valves
1.one year guarantee for whole machine except for wear parts;
2.24 hours technical support by email;
3.calling service;
4.user manual available;
5.reminding for the service life of the wearing parts;
6.installation guide for clients from both China and abroad;
7.maintance and replacement service;
8.whole process training and guidance from our technicians.
Your call and mail is welcome at any time for our valves
| Contact | Mr Seth Chen |
| Telephone | 0086-13817768896 |