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Manhole Cover

RKG-1RKG-2RKG-3 RKG-4 Manhole Flange

Description

The manhole cover is installed onthe top of the tank. It has a built-in pressure and vacuumvent and an emergency vent.

Features

1. Themanhole cover has a pressure and vacuum vent, while inside pressure higher than6-8 Kpa or lower 2-3Kpa than the outside, will be open to balance the differentpressure. While the difference pressure is less than -2~6Kpa, the P/V vent willbe closed to keep the product nonvolatile.

2. Itoffers automatic sealing of the P/V vent in a roll over situation to prevent spillage.

3. Whenthe inside pressure is higher 21-32kpa than the outside, the emergency ventwill be open automatically to keep the tank safe. The vent capacity is 7000M3/h.

4. Thetwo-stage opening allows for the safe release of residual compartment pressurebefore fully opening the fill cap.

5. The manhole cover is easy to maintain, convenient andsafe.

6. Ithas a working pressure of 0.6Mpa.

Technical Specifications of the Manhole Cover

Model	Material Outer	Diameter (mm)
RKG-1	Aluminum	560, 580
RKG-2	Aluminum	460
RKG-3	Carbon Steel	460, 500
RKG-4	Carbon Steel	460, 500
Manhole Flange	Mild Steel	460, 560, 580

Vents for Manholes

Cowell is a specialized manhole cover manufacturer and supplier based in China.Apart from oil tank truck parts, we offer oil pump, electrical transfer pumpunit, flow meter, fuel dispenser, as well as LPG dispenser, and more.

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