Water seal gate valves

source：Xiamen, rhett fluid control co., LTD The information has been viewed： 3985 Time：2013-07-03 11:27:55


Water seal gate valve for pipeline in the medium of water, steam, oil and non-corrosive gases as an opening and closing device, especially suitable for chemical industry pipeline system requirements and atmospheric vacuum of steam turbine condenser system of thermal power plant and oil, isolated, cut off or connected to medium in pipelines.
Product features:
■ stuffing is designed into the water sealing structure, access to 0.6-1.6MPa water filling, small friction force, good sealing, can make the system isolated from the atmosphere, to ensure good air tightness.
■ headstock piece adopts double wedge two-way elastic sealing, easy opening and closing, reliable sealing, good performance
■ stem through the quenching and tempering and surface nitriding treatment, with good corrosion resistance, scratch resistance and abrasion resistance
■ structure simple, compact and reasonable, convenient maintenance, long service life, beautiful appearance
■ valve must be in the fully open or fully closed position, do not adjusting valve
Technical parameters:
■ nominal size: DN50 ~ DN800
■ nominal pressure: PN1.6 ~ PN10MPa
■ design standard: GB/T12234
■. Length: GB/T 12221
Application: temperature ≤ 540 ℃.
■ flange end: customer requirements.
■ test and inspection: GB/T13927
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