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6-Inch High-Flow Pneumatic Tank Truck Bottom Valve – Independent Design for Safe Liquid Handling

6-Inch High-Flow Pneumatic Tank Truck Bottom Valve – Independent Design for Safe Liquid Handling

The HB804CQ-150R is a 6-inch pneumatic bottom valve, specially engineered for high-volume liquid transfer in tank trucks and water tankers. Installed at the bottom of the tank, the valve disc remains securely sealed inside, while the outer body incorporates a strategic cutting groove. In the unlikely event of a severe impact, the groove ensures that only the outer shell breaks while the internal seal remains intact, maintaining full tank integrity and preventing leaks.

Designed and manufactured independently, this valve is built for demanding industrial and fuel transport applications. Its pneumatic actuation provides precise, responsive control for both loading and unloading operations, minimizing human error and ensuring operational safety. The valve’s internal geometry has been optimized to support a maximum flow rate of up to 5500 liters per minute under 0.6 MPa working pressure, making it ideal for large-scale operations.

Constructed from surface-oxidized aluminum, the valve combines lightweight handling with excellent corrosion resistance. Flexible sealing options include Viton or Buna-N gaskets, suitable for fuels such as diesel and gasoline, or even for water applications in tanker trucks. Both tank-side and pipe-side flanges are round, simplifying installation and maintenance while ensuring compatibility with standard connection interfaces.

Across global markets, this type of valve is known by various names, reflecting different regional and industrial conventions: large-diameter pneumatic bottom valve, high-flow tank truck shut-off valve, emergency pneumatic tank valve, fuel or water tank submersible valve, heavy-duty bottom loading valve, and industrial liquid control valve. Regardless of naming differences, the core advantages—safety, high flow capacity, and reliability—remain consistent.

Key Advantages
Independent design and production: Custom-engineered for high reliability and performance.
High-volume capacity: 6-inch nominal size supports flow rates up to 5500 L/min.
Impact-resistant safety: Cutting groove protects internal disc and prevents tank leakage.
Pneumatic operation: Quick and accurate valve actuation for loading and unloading.
Durable materials: Surface-oxidized aluminum for corrosion resistance and long service life.
Sealing flexibility: Viton or Buna-N gaskets for fuel or water compatibility.
Universal connections: Round flanges on both tank and pipe sides for easy integration.

Optional Accessories
The HB804CQ-150R can be paired with tank-side and pipe-side flanges, welding bases, and gaskets. Custom spare parts are available to extend operational life.

Typical Applications
Widely applied in tank trucks for diesel and gasoline, water tanker systems, rapid loading/unloading platforms, and industrial liquid handling operations requiring high-volume transfer with maximum safety.

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Technical Specifications:
Item No. HB804CQ-150R
Nominal size: 6 inches
Working pressure:0.6MPa
Maximum flow rate:5500L/min
Opening mode:pneumatic
Temperature range:-20~+70 ℃
Flange: Round on Tank Side, Round on Pipe Side
Applicable medium: light fuel such as gasoline and diesel oil

The following accessories are designed to work in conjunction with the bottom valve for options:

HBBVTSFL-150R – Tank Side Flange with 8 bolt holes
HBBVTSFL-150RB – Tank Side Welding Sump with 8 male bolts
HBBVTSFL-150RA – Tank Side Welding Sump with 8 female nuts
HBBVPSFL-150F – Pipe Side Round Flange with 8 bolt holes
Buna-N / Viton Round Gasket for 6-inch Bottom Valve Tank Side
Buna-N / Viton Round Gasket for 6-inch Bottom Valve Pipe Side

Other required spare parts or other materials are customized!

Features
Compliant with EN 13308 – Service equipment for tanks.
Pneumatic control – Ensures reliable operation for loading and unloading processes.
Optimized internal design – Minimizes leakage during loading and allows high flow capacity.
Durable construction – Made of anodized aluminum for corrosion resistance.
VITON or Buna-N sealing gaskets for option– Excellent chemical resistance and durability.
1/8” GAS air inlet – Standard connection for pneumatic control.

About Haibo
Zhejiang Haibo Petroleum Equipment Co., Ltd.

Zhejiang Haibo Petroleum Equipment Co., Ltd., established in 2017, is a certified enterprise located in Yongjia County, Wenzhou City, Zhejiang Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
Our products are widely used in Fluid Control Systems, Energy Systems, Measurement Systems, Piping Systems, and Hydraulic Systems, serving petroleum companies, military units, oil depots, tank truck manufacturers, and petrol stations worldwide. Province—recognized globally as the world’s largest manufacturing base for petroleum equipment and the well-known hometown of pumps and valves in China.
At Haibo, we are backed by a team of senior industry experts with more than 20 years of professional experience in the petroleum equipment and fluid control sectors. Their deep technical knowledge and industry insight ensure that every product and solution we deliver meets the highest standards of quality, reliability, and performance.

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