Product Name: 20 Inch Stainless Steel Manhole Cover for Fuel Tanker Model NO.: GY801D-580 Condition: 20 Inch Stainless Steel Manhole Cover for Fuel Tan Emission Standard: 20 Inch Stainless Steel Manhole Cover for Fuel Tan Certification: ISO9000, CCC, CE, API Fuel: Gasoline Name: Manhole Cover Size: 580 Material: Stainless Steel Installation Type: Flanged Type Trademark: DESEINOR Transport Package: 2PCS/CTN Specification: 47*47*30cm, 30kgs Origin: Xuzhou, Jiangsu HS Code: 8708996000 Product Description 20 Inch Stainless Steel Manhole Cover For Fuel TankerManhole Cover is installed on the top of the tank to prevent the fuel leakage when tank is over rolled .Built in P/V vent to ajust the pressure when there is pressure difference between inside and outside the tank .it will aytomatically inlet or eshaust air when there is acccident or under high temperature .it will adjust the pressure so that it can ensure the safety and environmental protection .it has second class open design,whe n open the up binder plate .it will release the pressure out to prevent the worker from pushing over .in the main plate of the manhole ,there are two blinding holes which canbe installed with optic sensor ,dip tibe or external vacuum valve according to the user's demands .it is suitable to transport petroleum ,diesel ,kerosene and the other light oil .Technical SpecificationDiameter20"Working Pressure0.63MPaEmergency Open Pressure21KPa~32KPaMax. Emergency Vent Rate7000m3/hMaterialStainless SteelWorking Temperature-50~+150FAQ1. What is your terms of packing?A: we pack our goods in neutral white boxes and brown cartons.2. What is your terms of payment?A: T/T 30% as deposit, and 70% before delivery.3. What is your terms of delivery?A: EXW, FOB, CFR, CIF, DDU.4. How about your delivery time?A: It will take 5-10 days after receiving your advance payment.5. What is your sample policy?A: We can supply the sample, but the customers have to pay the sample cost and the feight cost.6. Do you test all your goods before delivery?A: Yes, we have 100% test before delivery7: How do you make our business long-term and good relationship?We keep good quality and competitive price to ensure our customers benefit . We respect every customer as our friend and we sincerely do business and make friends with them.