YOJE RKG series manhole cover is installed on the top of oil tanker. It is the internal inlet of loading, checking vapor recovery and tanker maintenance. It can protect the tanker from emergency.
Normally, the breathing valve is closed. However, when load unload oil external temperature changes, and the pressure of tanker will change such as air pressure and vacuum pressure. The breathing valve can automatically open at a certain air pressure and vacuum pressure to make the tank pressure in normal condition. If there is emergency like roll over situation, it will automatically close and it also can avoid the tanker explosion when in fires. As the emergency exhausting valve will automatically open when tank truck interior pressure increases to a certain range.
1. Each manhole cover emergency exhausting valve includes a breathing valve. 2. The breathing valve is installed as required to make the tanker ventilated. Different pressure settings suit different operation requirements. 3. Emergency Exhausting valve and breathing valve has automatic sealing to prevent danger and needless oil spillage. 4. Double open allows safe release of remaining gas before fully opening the cover board. 5. Two reserved blind holes on the main cover can be installed with vapor recovery valve and optic sensor.
is the professional manufacturer in producing tank truck parts, such as manhole cover, bottom emergency valve, API valve, vapor valve, optic sensor, ball valve, filters, acr gear pumps and petrol station equipment.
We were established since 1985(more than 30 years experience in this line) and now located at Binhai Industrial Zone with 18000sqm. Our brand "YOJE" is labeled as "Top quality" and enjoy a great fame, we cooperate with SINOPEC, CNPC, TOTAL, SHELL, BP and so on.
1. Best quality & professional products with favorible price.
2. Three Years Quality Guarantee.
3. Strong Capacity with Quick Delivery.
Packing & Delivery
Fixed by foam lining.
Custom required pallet packing.
Delivery in 5 days after get deposit payment.
Q1: Are you trading company or manufacturer ?
A: We are factory in Wenzhou, Welcome to visit us.
Q2: What is your terms of payment ?
A: T/T 30% as deposit, and 70% before delivery. We'll show you the photos of the products and packages before you pay the balance.
Q3: How long is your delivery time?
A: Generally, it will take 10 to 15 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q4: What is your terms of delivery?
A: FOB Ningbo or Shanghai.
Q5: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery
Q6. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q7. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q8: How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.