The 9800 Series Pilot Operated Valve have two principal advantages over other types of relief valve: It is bubble tight to set pressure. And, the full flow folw is attained at no more than 10% over-pressure. These characteristics permit an operating pressure nearer to the maximum allowable woking pressure of the tank. High operationg pressures reduce evaporation and total ventiing volume, thereby reducing product loss and cost of processing emission.
Features
Designed and tested according to API2000;
Size 2" through 12";
Available material option: Aluminum, carbon steel, stainless steel and other material;
Full open at less than 10% overpressure;
Main valve remains tight at the set pressure;
Soft seats seal tight to conserve product and minimize valve wear which improves reliability;
The inlet and outlet flange are in according with ANSI B 16.5 150Lb RF(It can be designed according to users' requirement);
We, Beijing Zhonghanghua Safety Valve Sales Co., Ltd established in 1998 which is the sales entity especially for safety valves and specialty valve designed and manufacutred by Beijijng Aerospace Propulsion Institute Pressure Relief Branch. Based on the company's philosophy of 'People oriented' and forcusing on providing best-in-class service and products to customers, the company already developed as one of the most important supplier for safety valves and specialty valves. By our continuing development, our products not only has been widely used in the most of domestic industry projects but also have been accepted and intalled to the industry projects by customers from USA, Germany, Canada and so on with excellent performace.
Our parent company Beijing Aerospace Propulsion Institute (CASC) was founded by 1958, which was the first research unit in China and involved in liquid propellant rocket engine development. Since 1984, CASC started to apply aerospace techniques to the industrial products development. The products have been successful developed such as thermal engineering equipments, special pumps, special valves, petrochemical equipments, measurement and control systems, environment protection systems for petrochemical and environment protecion industries. Most of them filled the domestic gap and enter the international market successfully.
Product: Safety Valves; Pilot Operated Safety Valves; Pressure Relief Valve; Change Over Safety Valve; Pressure / Vacuum Valve; Gas Blanket Pressure / Vacuum Valve; Emergency Pressure Vacuum Valve; Automatic Recirgulation Valve. We have obtained the certification fo ISO9001, and ISO14001, ISO18001, approved vendor of SINOPEC, CNPC, CNOOC.
