Official microblogging: Shanghai Huatong Valve
Company Tel: 021-59141010
Fax: 021-59141212
General Manager of E-mail: sales@ht-valve.com
Net sales Tel: 021-69118087
Net sales line: 021-69118082
                021-69118081
Net sales mailbox: wxw@ht-valve.com
Acting Line: 021-69118025
                021-69119793
Agent Mailbox: yxl@ht-valve.com
  • - for single core, when the medium is away, valve stability is good; When the medium is flow closed type, the poor stability, two-seat valves have two valve core, the valve core flow closed, valve core in the flow, small open degree, this car flow cl…
  • 1. The sealing surface grinding particle embedded in the sealing surface, clean at the end of sealing surface scratch; In the medium of some after use, wash, abrasive and adhesive on the sealing, the valve switch, cause scratch.- processing method: r…
  • 1. Packing leakingLeak and the reasons:1) packing seal principle: axial force on the packing, packing produce plastic deformation, the valve due to multiple packing installation, parts of the alternate contact each other, forming "maze effect&qu…
  • 2014-11-13Flange leak
    1. The valve flange sealing connection between contact parts according to design requirements put sealing gasket, rely on the connection bolt pre-tightening force produced by enough enough pressure, prevent medium leak outward.2. The gasket material …
  • - the lower cut-off valve required disclosure, the better, soft seal leakage is the lowest, cut-off valve effect of course good, but not wear-resisting, poor reliability, from the leakage of sealing and the double standards of reliability, soft seal …
  • The valve more than about 6000 enterprises in our country, and of which more than 5 million yuan output value over 900. Engaged in the valve production enterprise a lot, but many small and medium-sized enterprises. A few small businesses have neither…
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