Hebei Huahui Valve Co., Ltd

BS5163 Resilient Seated Gate Valve Big Size Gate Valve   Features The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. Stainless steel stem with rolled threads for high strength. The valve can replace stem seals under pressure. Full bore. Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance. Big Size Gate Valve Standard Design standard BS5163, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 3 Hydraulic test standard EN1074-1 and 2 /EN12266   Seat:1.1*PN(in bar), Body:1.5*PN(in bar)

Flanged Gate Valv e Gate Valve Parts Main gate valve parts: body, seat, gate, stem, bonnet and actuator. The main operation mechanism is very simple. When the handwheel is turned, it rotates the stem, which is translated into the vertical movement of a gate via threads. Types of Gate Valves The working principle of manual gate valve: turning the hand wheel, through the thread of the hand wheel and the valve stem, raise or lower the valve plate connected with the valve stem to open and close. Classified by shell/body material, gate valves can be divided into: Metal material valves: such as carbon steel valves, alloy steel valves, stainless steel valves, cast iron valves, titanium alloy valves, Monel valves, copper alloy valves, lead alloy valves, etc. Metal valve body lining valves: such as rubber-lined valves, fluorine-lined valves, lead-lined valves, plastic-lined valves, and enamel-lined valves. Non-metallic materials valves: such as ceramic valves, glass valves, plastic valves. How ...

As a   Ball Check Valve Leading Supplier , share with you. Multi-function Check Valve (1) Quality control of the main body blank. All parts of this valve are forgings. The forging process is carried out in strict accordance with the forging process regulations and process cards, and the initial forging temperature, final forging temperature, deformation degree and deformation speed are strictly controlled. The cooling method performs cooling. Chemical composition analysis, mechanical property test, intergranular corrosion test, metallographic analysis of the forged product, after analysis, test and determination, all meet the corresponding standards. The quality of forgings is guaranteed by ultrasonic inspection and liquid penetration inspection. Forgings are 100% ultrasonically inspected and evaluated in accordance with RCC-M requirements, and liquid penetration inspections and evaluations are performed on all surfaces of the forgings. (2) Welding In order to improve the quality o...

As a   Ball Check Valve Leading Supplier , share with you. Multi-function Check Valve (1) Quality control of the main body blank. All parts of this valve are forgings. The forging process is carried out in strict accordance with the forging process regulations and process cards, and the initial forging temperature, final forging temperature, deformation degree and deformation speed are strictly controlled. The cooling method performs cooling. Chemical composition analysis, mechanical property test, intergranular corrosion test, metallographic analysis of the forged product, after analysis, test and determination, all meet the corresponding standards. The quality of forgings is guaranteed by ultrasonic inspection and liquid penetration inspection. Forgings are 100% ultrasonically inspected and evaluated in accordance with RCC-M requirements, and liquid penetration inspections and evaluations are performed on all surfaces of the forgings. (2) Welding In order to improve the quality o...