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TFA68彈簧全啟式安全閥

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  • 上海南而閥門有限公司
  • 2018-05-14 09:00:00
  • 250

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SKU:彈簧全啟式安全閥 （W系列） TFA68
Description:









A48Y
Instruction


This valve
is used for power plant boilers, pressure containers,pressure and temperature reducing devices and otherfacilities. It serves to ensure the safety of the device during



Structure briefing

1. The main characteristics of the spring
fully bore type safety
valve are: simple structure, good seal performance,
accurate opening pressure,large discharge capability, low differential reseating
pressure and convenient adjustment, etc.
2. Nozzle type seat: It is the
Laware nozzle type seat. The speed ofthe steam reaches thevelocity of sound when passingthe exit way of the seatl; the sealed surface of the seat at
is made of hard alloy of cobalt by
overlaying welding. Large discharge coefficient, fine abilites of anti friction
and corrosion resistance and long durability are recognzed.
3. Thermo elastic disc:the disc is of thermodlastic sturcture. Taking the
advantage of its minor out-of shape feat-Ure when under the medium pressure, the sealability has been raised, and the problem that pre-discharge phenomenon
of the safety valve happens when the
medium pressure approaching the set pressure has been overcome. The sealed surface of the disc has adopted the
advanced techology of laser heat hardening to increase the hardness and the
ability of anti-friction and corrosion sistance.
4.Upper adjusting ring: the
valve can acquire appropriate reseating pressure by adjusting the upper
adjusting ring to change the flow direc-tion of the medium discharged from the
seat.
5.Lower adjusting ring: the valve can rapidly reach full bore in the
discharging process by adjusting the adjusting ring.
6.Back pressure
adjusting sleeve: it is an auxiliary apparatus that serves toadjust the back pressure ofthe disc to acquire
    
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地址：上海市閔行區(qū)莘松路54號(hào)
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聯(lián)系人：王富（先生）
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