6 Inch Emergency Cut Off Bottom Hydraulic Loading Valve Shutoff Structure Oil Media
Hydraulic Emergency Cut-off Bottom Loading Valve
The emergency shut-off valve, also known as the underwater valve, is installed at the bottom of the tank car. The valve is sealed inside the tank with no cut-off groove on the valve body. When subjected to strong collision, the valve body breaks at the flange, separating the tank body and bottom pipeline to become an independent sealed tank body, preventing liquid leakage and significantly improving transportation safety. This product meets GB/T932-2018 standard requirements and is designed for bottom loading/unloading of tank cars, suitable for transporting light fuel tanks (not for highly corrosive liquids).
Product Parameters
| Size |
4/6 inch |
| Working Temperature |
-20 to +150°C |
| Material |
Stainless Steel / F46 |
| Pressure |
0.6 Mpa |
| Weight |
25 kg |
| Operation Method |
Hydraulic |
| Seal Material |
PTFE |
| OEM |
Accept |
| Medium |
Sulfuric acid, hydrochloric acid, nitric acid, Sodium chloride, sodium hydroxide |
Performance and Characteristics
- Material: Light aluminum alloy main body, integrally molded by low-pressure casting for lightweight durability
- Corrosion Resistance: Hard oxidation surface treatment provides excellent oxidation and wear resistance
- High Flow Rate: Optimized structural design ensures maximum flow capacity
- Emergency Cut-off: Valve body breaks at cut-off groove during strong collision, maintaining tank seal to prevent oil leakage
Product Images
Maintenance Instructions
- Filter Screen: Remove when transporting thick oil products (e.g., crude oil) to maintain optimal flow rate
- Cylinder Maintenance: Replace piston cylinder seals if interface oil leakage occurs
- Routine Check: Regularly inspect air inlet pipes for damage to ensure normal valve operation
- Emergency Procedure: If valve fails to open, unscrew emergency bolt on bottom piston cylinder and insert 10cm hexagonal bolt to manually open valve
Company Profile
Hubei Huate Special Equipment Co., Ltd., founded in 2009 and located in Suizhou (China's special vehicle capital), specializes in R&D, casting, processing, and sales of special auto parts and vehicles. Our products serve petroleum, chemical, thermal, metallurgy, shipbuilding, pharmaceutical, food, and transportation industries with strong domestic and international market presence. Our 18,000m² facility includes over 9,000m² of production space with 200+ processing and testing equipment. With 90+ employees including 30+ technical experts, we annually produce 35,000 sets of special auto parts, making us a premium supplier for large-scale dangerous goods tank trucks and powder transport vehicles.
