Cast Aluminum 20" Bolt Style Manhole Cover

• Customization: Available
• Materilal: Aluminum Alloy
• Accessories: Optic Sensor, DIP Tube, Vapor Vent Valve
• Model NO.: C801A-560
• Transport Package: 2PCS/CTN
• Specification: NW: 14kg
• Trademark: GLME
• Origin: Wenzhou, Zhejiang, China
• Production Capacity: 6000PCS/Month

Product Description

Manhole cover 
Manhole Cover is installed on the top of the tanker to prevent the inside fuel from leakage when the tanker is over rolled. With P/V vent inside to adjust the pressure. When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure so that it can ensure the safety and environment protection. It is suitable to transpore petroleum, diesel, kerosene, and the other light fuel, etc.

*Emergency Exhausting Design
When the tanker truck is in high temperature condition, the manhole will automatically exhaust the air inside to release the pressure, ensuring the safety of the tanker.
*With P/V Vent inside
When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust air to adjust the pressure so that it can ensure the safety and environmental preotection.
*Secondary Open Design
When open the up binder plate, it will release the pressure out to prevent the workers from pushing over.

Technical Data

Nominal diameter	10"
Emergency open pressure	21kpa~35kpa
Max  emergency flow rate	7000m^3/h(when 35kpa)
Material	Aluminum
Installation	Flanged
Temperature range	-20~+50°C

C801A-560

Function& Feature

1.Big plate & small plate are casted , oxidation treatment on the surface.

2.Can be install double P/V vent valve according to requirements.

3.Big plate three hole,, it can be installed with optic sensor, dip tube or external vacuum valve.