Description
Blinding Hole Design: In the main plate of the manhole cover , There are three blinding holes can be installed with Vapor Vent Valve , Optic Sensor , Dip Tube or External Vacuum Valve according to user`s demand.
Manhole Cover C801A-560/580
Whole diameter:20″
Blinding Hole Design:
In the main plate of the manhole cover , There are three blinding holes can be installed with Vapor Vent Valve , Optic Sensor , Dip Tube or External Vacuum Valve according to user`s demand.
Benefit and Features :Aluminum alloy surface is treated by oxidation to improve the anti-corrosion.
Can be installed double P/V vent valve according to requirement to increase the flow rate of air
Technical Data:
Emergency open presure: 21Kpa~32Kpa
Max Emergency Flow Rate: 7000m³/h(When 34Kpa)
Material: Aluminum Alloy
Installment Mode: Flanged Type
Temperature Range: -20℃~+70℃
Size Data:
Model: C801A-460
D0: Ø560
D1 Ø530
D2 Ø482
H 88
B 12
Z-d 24-Ø11
Paiement et sécurité
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