1. Why choose us?

A. Large variety inventory: Meet your urgent requirement, ***0days delivery.

B. Small mini order Qty: In lower local market prices. 

C. Designs customized: With your LOGO, name, date or other special design to make your occasion special. 

2. Can you provide free samples?

Yes, samples are free, but you may need to pay some express cost for the samples.

3.Do you develop any new designs every year?

Yes, every season there are new designs provided to clients by emails. New catalogue refreshed every year will be mailed or emailed to clients.

4.Can you customize our own products, including material, size, colour, style etc.?

Yes, you can customize your own products. We can make a sample for your confirmation according to your requirement before order confirmation.

5. What is MOQ?

For inventory items, no mini order quantity; for other items, would you please check our specific details for every item to get the MOQ. Any special requirement, talk to us.

6 How about payment?

For sea shipment orders, T/T normally; For small orders by air or by courier, WEST UNION, paypal will also do.

7. Is there any after-sale service?

Customer services will watch for your order once your order placed to our company, youll get emails for your order status termly until you get the goods at your hand.

Once you get the goods, please check the goods, if find out any problems to our goods, notify us, well immediately get out the solutions for these.

8. How to do repeat orders?

For repeated orders, only need to advise us your original order no., well find out your original order even its 5 years before. Will match for colors, designs then. 

Xuzhou DeSheng petrol machine parts Co.,Ltd,is concentrates on design,development,manufacture, marking sales into on company.produces the relative accessories of the road dangerous fuel transportation parts and other aluminum alloy components used on machinery .at present ,the products are mainly include flanges ,ball valve ,filters,manhole covers,API loading valves,quick coupling,vapor recovery parts and other related products,the aluminum alloy hose quick coupling ,dois China Petroleum Co.,Ltd.appointed products to supply.

Mission: meager profit business,integrity is golden, dealing with customer requirements as far as possible perfect communication, solving. Track service with the time of delivery and the pre-sale after sale

we could also re-design and make new mold as you required

Petroleum tank truck 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.

Specification

1. Whole diameter: *0"
2. Nominal diameter: *0"
3. Emergency open pressure: *1kpa **2kpa
4. Material: Aluminum Alloy

5. Installation mode; Flanged Type

Features

1.  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.

2.  With P/V Vent inside
     When there is pressure differences inside and outside the tanker, it will automatically inlet or exhaust