Cast steel flange gate valves perform standard design specification: GB/T 12234 structure length: GB/T 12221 connecting flange: JB/T 79 test and inspection: JB/T 9092 - pressure Temperature: product identification of GB/T 9131, GB/T 12220 cast steel flange Industrial Valves product characteristics 1, compact structure, reasonable design, valves, good rigidity, smooth channel, flow coefficient small 2, the sealing surface of stainless steel and carbide, long service life. 3, using the flexible graphite packing, sealing, reliable and flexible operation of the light 4, drive mode for manual gear transmission, pneumatic, electric, 5, and form for the elastic wedge single ram, rigid wedge single ram of double ram type cast steel flange gate structure characteristics 1, well-selected materials, in line with the relevant standards at home and abroad, the material of high quality in an all-round way. 2, conform to the requirements of domestic and international advanced standard, reliable sealing, excellent performance, beautiful appearance. 3, seal pair of advanced and reasonable, the disc and seat sealing surface with different hardness of too stand ( Stellite） Cobalt-based hard alloy surfacing and become, reliable sealing, high hardness, wear resistance, high temperature resistance, good corrosion resistance, abrasion resistance, long service life. 4, the valve stem through surface nitriding treatment and conditioning, with good corrosion resistance, abrasion resistance and abrasion resistance. 5, adopting the wedge gate structure, large diameter setting thrust bearing, friction small, and is equipped with impact handwheel, easy opening and closing. 6, can be used in a variety of piping flange standards and flange sealing surface forms, can meet the needs of all kinds of engineering and the user requirements.
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