Vacuum isolation valve

source：Xiamen, rhett fluid control co., LTD The information has been viewed： 4075 Time：2013-07-03 10:08:14


As the opening and closing device, especially suitable for the thermal power plant steam turbine condenser and vacuum system, vacuum isolation sealing effect.
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Product features:
A design of the vacuum seal structure of packing chamber, the system isolated from the atmosphere, have good environmental protection performance.
■ sealing pairs is advanced and reasonable, improves the sealing performance, long service life.
■ stem through the quenching and tempering and surface nitriding treatment, with good corrosion resistance, scratch resistance and abrasion resistance.
■ flange gasket composite materials, large expansion coefficient, good sealing performance, to ensure reliable system isolated from the atmosphere
Technical parameters:
■ nominal size: DN10 ~ DN150
■ nominal pressure: PN1.6 ~ PN10MPa
■ design standards: GB/T 12235
■. Length: GB/T 12221
■ applicable temperature: -29 ℃ ~ 300 ℃
■ flange end: customer requirements.
■ test and inspection: JB/T 9092
The material of main parts:
Body: carbon steel, stainless steel, alloy steel
Stem: stainless steel, alloy steel
Ram: carbon steel, stainless steel, alloy steel
Seat: stainless steel, alloy steel
Packing: reinforced flexible graphite