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首页Home美国威兰阀门公司 Velan Valve Corporation>正文Text 上一页Previous】【下一页Next
铸钢闸阀,截止阀和止回阀 Cast Steel Gate, Globe and Check Valves
如何订购
How To Order

密封楔板阀座与螺纹旋进阀座比较
Seal Wedged Seats VS Screwed-in Seats


美国威兰阀门公司

 
Velan标准的研磨密封焊接钨铬钴合金6阀座环面
VELAN STANDARD GROUND AND LAPPED SEAL WELDED SEAT
RINGS FACED WITH STELLITE 6
  • 由Velan首创的公认的最先进的技术。
    Pioneered by Velan and considered state-of-the-art technology.
  • 防泄漏焊接装配。
    Welded-in leakproof.
  • 焊接质量经过100%的测试。
    Weld quality 100% tested.
  • 钨铬钴合金6阀座面,使用寿命更长。
    Stellite 6 seating faces for long service life.
 
  • 焊接装配后,进行研磨,抛光精度达到2 RMS。
    Ground and lapped to 2 RMS finish after weld-in.
  • 通常用于温度达538°C蒸汽,油和气。
    Standardized use for steam up to 1000°F (538°C), oil and gas.
  • 钨铬钴合金面耐磨性优于13 CR楔板,而且更易于维修和更换。
    Stellite face will wear less than the 13 CR wedge, which can easily be repaired or replaced.
     
与螺纹旋进的13 CR阀座的竞争优势
COMPETING SCREWED-IN SEATS IN 13 CR
  • 可能会因腐蚀而导致松弛,从而导致实际上的泄漏。
    Can loosen up due to corrosion and cause substantial leakage.
  • 更换很困难甚至不可能。
    Replacement is difficult if not impossible.
  • 螺纹可能被腐蚀并导致泄露。
    Threads can corrode and cause leakage.
  • 螺纹松懈后,阀座就处于不安全状态。
    Seat is unsecured from unscrewing.
 
  • 由于温度波动、腐蚀或振动,阀座可能松动,并导致泄露。
    Seat can become loose due to temperature fluctuations, corrosion
    or vibration, and can leak.
  • 不适用于蒸汽应用场合。蒸汽和其它流体会拉曳阀体螺纹,造成阀座松动以至无法维修。
    Not suitable for steam service. Steam and other fluids will wire draw body threads of loose seats beyond repair.
  • 13 CR阀座仅仅适用于某些流体。
    13 CR seat suitable only for certain fluids.
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