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├ Manhole
├ Bottom Valves
├ Ball Valves
├ Quick Connector
├ API Adapters
├ Respiration Valve


Henghe Jiahua as one of the biggest manufacturer of Manhole is the only one that has full production line of sheet metal, CNC machining, electronic R&D, assembly and testing.
Alloy ManHole
Alloy ManHole
Carbon Steel Manhole
Carbon Steel Manhole

Flange for Manhole
Stainless Manhole
Stainless Manhole
GTG Loophole

GTG Loophole
Manhole is installed on the top of the tank, it has built-in respiration system and emergency vent.
1 Emergency vent relieving pressure is from 21 to 32 KPa. The air is 7000m3/h.
2 It have one or two breathing valve inside, the pressure in the tank can be adjusted automatically.
3 Made by A.L.,it's light weight and strong.

Manhole assemblies should be inspected with sufficient frquency to insure Intergral Relief Valve functions properly.Any worn,damaged or missing parts must be replaced.Gaskets should be replaced if their effectiveness to insure a liquid tight seal is impaired in any way. Replacement gaskets must be compartible with products carried.

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Add: Sanjiang Pier Oubei, Yongjia, Zhejiang, China.
Tel: 0086-577-67339323 FAX: 0086-577-67339308
P.C: 325102      ICP:  ZHEJIANG ICP09014629
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