discount 70% in 2018-09-25 to 2018-09-27
price: USD$ 70.00
freight :USD$7.00,(Postal parcel)
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It can be used to cut off or connect the medium to the pipelines with various working conditions, such as petroleum, chemical, pharmaceutical, chemical fertilizer and electric power industry, with nominal pressure PN1.6 ~ 6.4Mpa and working temperature -29 ~ 550 degrees centigrade. Applicable medium: water, oil, steam, acid medium, etc.. The operating modes are manual and pneumatic.
1. according to the location of the stem thread: external thread type, internal thread type.
2. according to the flow direction of media: straight through, DC type.
3. according to the form of seal: packing sealing stop valve and bellows sealing stop valve.
Straight through is a common structure, but its fluid resistance. The direct flow type fluid has less resistance, and is more suitable for fluids containing solid particles or viscosity.
Bellows seal valve with bellows seal design, the complete elimination of the common valve stem packing seal aging fast and easy leakage faults, not only improve the energy use efficiency, increase equipment safety, reduce maintenance costs and frequent maintenance, but also provides a clean and safe working environment.
1., the product structure is reasonable, reliable sealing, good performance, beautiful appearance, manufacturing and maintenance is more convenient;
3. working stroke is small, opening and closing time is short.
4. sealing surface push welding stellite alloy, wear resistance, corrosion resistance, anti friction performance, long service life;
5. stem quenching and tempering and surface nitriding treatment, good corrosion resistance and friction resistance;
6. can adopt double seal (including bellows design), reciprocating test 10000 times without fault, more reliable performance, prevent leakage phenomenon;
7. valve lift position indication, more intuitive;
8. parts material, flange and butt welding size can be selected according to the actual working conditions or user requirements, to meet the needs of various projects.
Production in strict accordance with the following national standards: