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Product Details

Manhole Cover



Description

Manhole is installed on the top of the tank, built-in pressure& vaccum vent & emergency vent.


RGK-1

RKG-2

Manhole Flange

RKG-3

Characteristics

Pressure & vaccum vent, while inside pressure higher than 6-8 Kpa or lower 2-3Kpa than the outside, will be open to balance the different pressure. While the difference pressure less than -2~6Kpa, the P/V vent will be closed to keep the product not volatilized.

Automatic sealing of P/V vent in a roll over situation prevents dangerous and splliage.

When th

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

Two-stage opening allows safe release of residual compartment pressure before fully opening the fill cap.
Easy maintenance, convenience, safety.
Working pressure:0.6Mpa

  Technical Specification

  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

RKG-4

A Type

B Type

C Type 




Copyright @2016 Shanghai Cowell Machinery Co., Ltd. All Rights Reserved.
Tel:+86-21-36031183 Fax:021- 56700166 Add: RM 803, Greenland Putuo Commercial Plaza, No.1, Lane 423, Xincun Road,Putuo District,Shanghai, P.R.China