- Cast & Forged[6]
- Other Mechanical Parts[6]
- Valves[6]
- Pipe Fittings[6]
- Other Truck Parts[6]
- Flanges[3]
- Seals[1]
- Instrument Parts & Accessories[1]
- Alarm[1]
- Electrical Plugs & Sockets[1]
- Pumps[6]
- Contact Person : Mr. Gong Xiuhua
- Company Name : Yongjia Sanjiang Oil Equipment Factory
- Tel : 86-577-67331883
- Fax : 86-577-67325581
- Address : Zhejiang,Wenzhou,Sanjiang Industrial Zone, Oubei Town, Yongjia County
- Country/Region : China
manhole cover
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Carbon steel Manhole cover
installed on the top of oil tanker and used for injecting oil ,checking gas recovery,mending the internal inlet.Also can protect the tanker under the emergency. When inject oil,the outside temperature's change will lead the tankers inside pressure to change.Then the manlids breathing valve can automatically make the tanker pressure to the normal level. If some emergency happen,like the tanker overturn,the breathing valve will automatically close to avoid the tanker’s explosion when under the fire condition.
Feature: Steel butt plate,pressure vacuum valve can ventilate the oil tanker,different manipulation.can set up different pressure.Pressure vacuum valve has the automatically seal function,can avoid the oil leakage. Before completely open the butt plate,double opening device can make the tanker's remaining gas to discharge safely.
20 inch
16 inch
