Tianjin KXC Metal Products Co., Ltd.

Extension Spindle Flange Butterfly Valve Butterfly Valve   Specifications : Size: DN50-DN1200 Pressure: PN10/PN16 Standard:   ISO5211, DIN2501 PN10/PN16, DIN3202 The length of the short structure can save raw materials and installation space, and also effectively support the strength of the pipeline. The valve block is the correct movement of the gate, extrusion fast, to ensure effective sealing valve . According to different working conditions demand design V, triangle, or five corners and other ports, in order to meet the needs of various flow regulation. No groove at the bottom to make sure no slag and full bore flow. Bundor valve strict implementation of the API598 experimental standard, for each product to implement 100% positive and negative double pressure test, guarantee delivery to customers is 100% qualified products.

  What is Rubber Flap Check Valve? The rubber flap check valve has a complete 100% flow area, low head loss, and resistance to clogging. To ensure long-term reliability, because the valve's reinforced rubber floppy disk is the only moving part, it's integral O-ring provides a drop-proof seal under low and high working pressures. The rubber flap check valve has a unique and simple design with only one moving part. The flap does not swing from the hinge pin; it just flexes open. The seat is at a 45° angle. The baffle moves 35° from opening to closing, usually before column reversal occurs. It has non-slam characteristics.  The valve does not require regular maintenance.  At the same time, the combination of 45-degree seat angle, short stroke, and the inherent memory of its flexible disc can provide quick closing and anti-impact operation. Recommended for water, sewage, gas, oil, and rubber lining chemicals. For more information and help, please contact us.

Check valves are found in almost every industrial application acting as non-return or one-way valves. Generally, simple devices, check valves perform a vital function preventing reverse flows, damage and ensuring efficient operations. Frequently check valves are placed in series, for instance in water systems to prevent backflow of contaminated water into clean water supply lines. With a huge range of potential applications, there are also multiple types of check valves that use many different materials such as metal, polymers, and rubber.  Common designs include swing or flap check valves  in which a metal disc pivots on a hinge or trunnion to prevent reverse flow. Larger check valves are typical of the swing or flap type. As the name suggests, ball and spring ball check valves feature a ball that mounts in an appropriately profiled seat. Duckbill check valves rely on a flexible rubber diaphragm which creates a valve that is normally closed unless positive pressure is applied. Unlike