Aluminum Vacuum Vent Relief Valve is installed on the top of vent pipes from underground or above ground fuel storage tanks. The vent cap and internal wire screen are designed to protect the tank vent lines against intrusion and blockage from water, debris or insects. A normally closed poppet in the valve opens at a predetermined pressure or vacuum setting to allow the tank to vent.
Product Name |
Aluminum Vacuum Vent Relief Valve |
Material |
Body |
Aluminum Alloy |
Technics |
Casting |
Nominal Diameter |
DN50 /2" |
Tempreture Range |
-20°C ~ +70°C |
Medium |
gasoline,kerosene,diesel,water,etc |
1. The vacuum pressure valve is installed at the top of the sump of the storage tank
2. The exhaust cover and the internal net are designed to protect the fuel tank ventilation line from external insects. The valve body will open/close when a predetermined pressure or vacuum setting is reached
3. Vacuum pressure valve is used in conjunction with centralized oil and gas recovery system or distributed oil and gas recovery system
4. When used for oil and gas recovery, maintain a certain tank pressure and reduce gasoline volatilization loss
Installation Notes:
1. The thread of the venting nozzle should be coated with a non-hardening and oil-resistant thread sealant.
2. When connecting, please note that the wrench only acts on the clamping plane of the pipe joint, not on the composite valve body.
Note: 1. Do not cover the venting port
1. Inquiry-Professional quotation.
2. Confirm the price. lead time. artwork. payment term etc.
3. AISTAR Group sales send the Proforma Invoice with AISTAR company seal.
4. Customer make the payment for deposit and send us Bank receipt.
5.Initial Production Stage-Inform the clients that we have got the payment and will make the samples according to your request, send you photos or Samples to get your approval. After approval, we inform that we will arrange the production & inform the estimated time.
6. Middle Production-send photos to show the production line which you can see your products in . Confirm the estimated delivery time again.
7. End Production-Mass production products photos and samples will send to you for approval. You can also arrange the third party Inspection.
8. Client make payment for balance and AISTAR ship the cargo. Also AISTAR can accept payment term-Balance against B/L Copy. L/C or D/P payment Term.
9. Order can be say "finish" when you receive the goods and satisfy with them.
10. Feedback to AISTAR about Quality. Service. Market Feedback & Suggestion. And we can do better.
1.Q:Are you manufacturer or trading company?
A:We have our own 2 factories to produce 80% products by ourselves ,including fuel dispenser,fuel nozzle,fuel pump, camlock coupling ,measuring can, jerry can,valve,pipe fitting,flowmeter etc,rest 20% we purchase from our boss's relatives,friends to make sure get cheapest price and these factories working with us over 10 years.
2.Q:What you can supply to me?
A:We could supply all kinds of Fuel dispenser and fuel dispenser parts, Besides ,we provide OEM service, shipping service and QC service as well to make sure you get ONE-STOP purchase process from us.
3.Q:Can you customize the products as per our request?
A: Yes, we do OEM and ODM. We could make the product suggestion based on your idea and budget.
4.Q:How to get a sample from you?
A: All samples will be free if unit cost under 20USD,but the freight should be on your side. If you have express account like DHL,UPS etc we will send you directly, if you don't have you can send express cost to our Paypal account, any sample cost could be returned when you make order.
5.Q: What's your payment term?
A: Payment: 30% in advance, 70% after receiving the B/L.We also accept L/C ,D/P if total amount over $30000.