The globe valve is one of the more widely used valves. The reason why it is popular is that the friction between the sealing surfaces during the opening and closing process is small, it is relatively durable, the opening height is not large, the manufacturing is easy, and the maintenance is convenient. Low pressure, but also suitable for high pressure. The closing principle of the globe valve is to rely on the pressure of the valve stem to make the sealing surface of the disc and the sealing surface of the valve seat closely fit to prevent the medium from flowing.
The sealing principle of the wedge gate valve is based on the tight combination of the two sealing surfaces on the wedge gate and the two sealing surfaces on the valve body to achieve the seal. The purpose of using the wedge gate is to increase the auxiliary sealing load, so that the metal hard-seal wedge gate valve can seal both high medium pressure and low medium pressure. When closing, rotate the valve stem clockwise to make the sealing surface of the gate valve and the sealing surface of the valve body close to achieve a seal.
Author: Fucheng County PENGDA machinery Source: valve manufacturers Published: 2020-11-18 09:21 Views: 98
ZFV ( Zhejiang zhengfeng valve co., ltd ) is a professional triple eccentric butterfly valve manufacturer, producing high qulity butterfly valve with various manufacturing standard include API, DIN, JIS. GOST, EN, ISO, GB and so on , with different materials. We welcome customer over the world to contact us for consultion.
Valve size DN80, pressure rate PN16, flanged end, raised face, the pipe flange as per GOST 33259-2015 for E, floating ball construct. The ball valve is used for shutoff purpose on-off type, main part material is austenic stainless steel: body ASTM A351 CF8, ball ASTM A182 F304, stem ASTM A182 F304, seats material PTFE. It’s full bore type valve. With firesafe design. the valve leakage class is as per GOST 9544 - A, valve operated by single action pneumatic actuator.
© 2021 Zhejiang Zhengfeng Valve Co., Ltd.
