Disadvantages: easy to cause between the sealing surface erosion and abrasion, maintenance more difficult. Overall large size, open requires a certain amount of space, opening and closing a long time. More complex structure. Parallel Gate Valve valve types, according to the sealing surface configuration can be divided into wedge gate-type valve and parallel gate-type valve, wedge gate-type valve can be divided into: single-gate type, gate-type double plate and elastic; parallel gate-type valve can be divided into single - ram type and double plate. Divided by the threaded stem position can be divided into two clear shot valve gate and dark bar. Advantages: 1, the medium can flow in any direction to the sides, easy to install. Both sides of the valve channel is symmetrical. 2, the structure length (the distance between two connection lines between the end face of the housing) is small. 3, simple shape, valve vendors, a short length of the structure, temperature and pressure valves, good manufacturing processes, a wide range. 4, compact, valves, valve rigid, channel flow, flow resistance small number, stainless steel valves, stainless steel and alloy sealing surface, long service life, the use of PTFE packing. Reliable sealing. Lightweight and flexible operation. Features: The overall package of plastic: gate using high quality rubber within the overall outsourcing glue, Europe's leading rubber vulcanization after curing technology allows the gate to ensure accurate geometry, and rubber and ductile gate Next reliable, easy off and good elastic memory. Water Body Casting: Valve using precision casting, precision geometry makes finishing without any internal body to ensure that the valve seal. Valve Manufacturers, Shandong Everbright Valves Ltd provided by Shandong Everbright valve. Valve Manufacturers, Shandong Everbright Valves Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) this year introduced a new upgrade, the above picture is for reference only, please call Tel picture on this page or to obtain the latest information Contact: Manager Ma.