Manhole Cover (Aluminum valve cover)
Manhole Cover (Aluminum valve cover)
Manhole Cover (Aluminum valve cover)
Manhole Cover (Aluminum valve cover)

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Manhole Cover (Aluminum valve cover)

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Model No. : C801C/460
Brand Name : COWELL

Product description

C801C/460 Aluminum Manhole Cover   Installed on the top of the tank, it has builtin respiration system and emergency vent. 1. Light and strong 2. Emergency vent relieving pressure is from 21 to 32 KPa. The Max.free air is 7000m3/h. 3. It have one or two breathing valve inside, the pressure in the tank can be adjusted automatically.    
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