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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: JIALONG
  • Model Number: C801B-560
  • Application: tanker trailer, tank trailer
  • Material: Aluminum
  • Dimensions: 20"
  • Product name: ADR aluminum manhole cover with PV vent valve
  • accessory: PV vent valve
  • Certificate: ADR
  • Packing: Foam and Carton

Packaging & Delivery

Packaging Details Net weight:13.85kg/set,2pcs/ctn, total Net weight 27.7,Gross weight 29.
7kgs (Ctn size: 59*27*63CM)
Delivery Time Shipped in 15 days after payment

ADR aluminum manhole cover for tank trailer


ADR manhole cover (manlid) is installed on the top of tank trailer to prevent the inside fuel from leakage when tank tanker is over rolled,with PV vent valve 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 environmental protection.It is suitable to transport petroleum,diesel etc.



1.Material:aluminum alloy 

2.Max emergency flow rate: 7000m³/h(when 34KPa)

3.Emergency Open Pressure: 21Kpa-32Kpa

4.Working Temperature:-20~+70℃
5.Install Method: Flange



1.Emergency Exhausting Device:

When the tanker truck in the high temperature condition,manlid will automatically exhaust the air inside to release the pressure,ensuring the safety of the tanker.

2.Secondary Open:

when open the upper blinder plate,it will release the pressure out to prevent the operator against dangerous Kick-Back that can experience due to build up of residual pressure.

3.With PV vent:

with the functions of anti-flow when the tanker is over rolled and high sensitivity  to inlet or exhaust air. Positive pressure: +6~+8KPa   Negative pressure: -2~-3KPa

4.With the key: to lock the manhole for fuel tanker safe.







 Carbon Steel Manhole Cover         16" aluminum manhole cover



Company Information

1.Main Products:ADR manhole cover,bottom valve,API loading&unloading valve,vapor recvoery valve,optic sensor,air interlock valve,ball valve



Delivery and Shipping:

Contact Information:

Zhejiang Jialong Mechanical Equipment Co.,Ltd.
Address:Oubei Tangtou Industry,Yongjia County,Zhejiang Province,China
Tel:0086-577-67331969 Fax:0086-577-67331999
Whatsapp or Cell Phone:+86-18814921916

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China (Mainland) | Manufacturer, Trading Company
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