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Vacuum isolation gate valves

source£ºXiamen, rhett fluid control co., LTD The information has been viewed£º 3763 Time£º2013-07-03 13:36:46


As the opening and closing device, especially suitable for the thermal power plant steam turbine condenser and vacuum system, vacuum isolation sealing effect.
Product features:
A design of the vacuum seal structure of packing chamber, the system isolated from the atmosphere, have good environmental protection performance.
¡ö material comply with the relevant standards at home and abroad.
¡ö sealing pairs is advanced and reasonable, improves the sealing performance, long service life.
¡ö gate hoist pieces parallel bidirectional elastic sealing, the friction force is small, easy opening and closing, convenient repair, reliable sealing, excellent performance.
¡ö stem through the quenching and tempering and surface nitriding treatment, with good corrosion resistance, scratch resistance and abrasion resistance.
¡ö flange gasket composite materials, large expansion coefficient, good sealing performance, to ensure reliable system isolated from the atmosphere.
Technical information:
¡ö nominal size: DN50 ~ DN800
¡ö nominal pressure: PN1.0 ~ PN10MPa
¡ö design standard: GB/T12234
¡ö. Length: GB/T 12221
Application: temperature ¡Ü 550 ¡æ.
¡ö flange end: customer requirements.
¡ö test and inspection: JB/T 9092
The material of main parts:
The valve body, valve cover: carbon steel, stainless steel, alloy steel
The valve plate: carbon steel, stainless steel, alloy steel
Seat: stainless steel, alloy steel
Stem: stainless steel, alloy steel
Flexible graphite packing: +304