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BS4504 Pn25 102 Lap Joint Flanges

2017-05-02 09:03:14   COMMENT:0 HITS:
  BS4504 Pn25 102 Lap Joint Flanges is installed in the top of the tank safety emergency ventilation, usually with the fire, mechanical breathing valve supporting the use, both to avoid the accident caused by a sharp tank overpressure or vacuum, the damage to the tank and the accident occurred, and Has played a role in the safety of fire, is to protect the safety of storage devices, especially for storage materials to cap the top of the atmospheric nitrogen cans. With constant pressure discharge, constant pressure suction, open and close flexible, safe fire-retardant, compact structure, sealing performance, safe and reliable.

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