check Industrial Valves model establishment meaning; Check valve, also known as one-way valve, back pressure valve, check valve, backflow valve belong to automatic valve class, the check valve is one of the indispensable products in the pipeline system, its role is to prevent the backflow medium, to prevent reverse flow of medium. By the flow of the medium itself to opening and closing a valve. And subject to change with the continuous upgrade of pipeline system, the modernization of traditional check valves have been short of market demand, in recent years the birth of many new type check valve model, to provide customers with more knowledge of check valve type, according to common check valve model, valve is analyzed. The following is a common check valve model establishment method in our country, the check Industrial Valves model establishment is subdivided into according to the international valve model establishment method. Is a professional do to check model establishment represents more detailed instructions. The same time purchasing or don't know my way around, the check valve type user please read it carefully. The check valve model establishment method: such as H41H - 16 c check additional number in sequence: HH micro resistance slow close check valve, BH, HQ ball type insulation check valve check valve; (1) check valve type: H representative check valve; 2 check connections: 4 welding flanges, 6, 7 to clip; (3) check valve forms: 1 vertical lift and 2, 4 swing, 6, 8 butterfly double disc type; (4) check valve seal: B babbitt, fluorine plastic F, H, M monel alloy stainless steel, rubber, hard alloy, Y W X directly processing; 5] check valve pressure: the pressure of 16 16 kilograms, PN1. 6 - Class 25 mpa, 150 lb - Level 5 k - 2500 lb, day 63 k; [6] check valve material: Q nodular cast iron, carbon steel, P - C 304年,R - 316. I'm A titanium alloy, chrome molybdenum steel; Common type, the check valve: lift check valve to the clamp: H71X, H71H; Wing to the clamp twin disc check valves: H76X, H76H; Round to the clamp plate check valve: H74H, H74I, H74M; Silent check valve: H42H, H42W; The micro resistance slow close check valve: HH44H, HH46H, HH49H; Rubber disc type check valve: HC44X; Silencing check valve: HC41H, HC41X, HC41T; Lift check valve: H41H, H41W; Swing check valves: H44H, H44W; Slide the ball type check Industrial Valves: HQ41X; Welding check valve: H61Y, H62Y, H64Y.

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