75mm PVC True Union Ball Valve Fast 90 Degree Open Close For Aquaculture Pipeline
75mm corrosion resistant plastic ball valve with quarter-turn quick switch, used for seawater breeding, electroplating wastewater & amusement park water circulation.
Description
I. Product Function
The 75mm ball valve is specifically engineered for use with UPVC and PP plastic pipes having an outside diameter of 75mm. Featuring a true union ball valve configuration, it enables rapid opening and closing with just a 90° turn, while the full port ball valve design ensures high‑capacity flow without restriction. The handle requires only a quarter‑turn to either open or shut off media such as seawater, acid/alkaline wastewater, and recirculating water. This valve serves dual purposes: it allows zone‑based flow control within facility piping networks, and it provides emergency isolation during line leaks or equipment malfunctions to minimise losses. It is widely adopted in corrosion‑resistant fluid control systems.
II. Specification Table
| Parameter | Detail |
|---|---|
| Nominal outer diameter | 75mm |
| Body material | UPVC / PP engineering plastics |
| Structure type | True union ball valve (removable union connection) |
| Actuation mode | 90° handle for quick open/close |
| Port design | Full port ball valve |
| Pressure rating | PN16 |
| Connection type | Solvent cement / union clip |
| Suitable media | Seawater for aquaculture, mild acid/alkaline wastewater, pool circulation water, irrigation water |
| Operating temperature | 0°C~60°C |
| Key features | Fast actuation; resistance to acid, alkali and seawater corrosion |
The valve body is integrally moulded from plastic, offering strong resistance to salt and mild acid attack, thus preventing ageing or rusting even with prolonged seawater service. A quarter‑turn fully opens or closes the valve, ensuring extremely high shut‑off efficiency in emergency situations. The true union structure allows the valve to be disassembled for seal replacement without cutting the pipeline, simplifying routine maintenance. The smooth full‑bore interior resists crystal build‑up and sediment accumulation, reducing the risk of clogging over extended use.
III. Application Scenarios
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Circulation networks for seawater aquaculture
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Acid/alkali transfer lines in electroplating facilities
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Water recirculation systems in large water parks
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Main irrigation trunks for extensive farmland
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Plastic piping in wastewater treatment plants
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Laundry effluent conveyance pipelines
IV. Frequently Asked Questions for Overseas Purchasers
Q1: Does the quick actuation of the 75mm ball valve tend to cause water hammer, and how can that be resolved?
A1: Under normal conditions with ambient‑temperature aquaculture or pool water, routine opening/closing does not generate significant water hammer. For high‑pressure supply applications, we offer an optional damped extended handle that allows slower actuation, effectively mitigating water hammer impacts and protecting plastic pipelines.
Q2: For seawater aquaculture facilities along the coast of Malaysia, which material – UPVC or PP – offers better durability?
A2: For ordinary ambient‑temperature seawater circulation, UPVC provides greater cost‑effectiveness. If the service involves elevated temperatures or intermittent dosing of disinfectant chemicals during farming operations, PP is recommended for its superior corrosion resistance and anti‑ageing performance.
Q3: Could the true union structure leak in humid outdoor environments?
A3: When the supplied PTFE gasket is properly tightened to the specified torque, the union connection achieves a reliable waterproof seal. Under outdoor seawater or high‑humidity conditions, it remains leak‑free for prolonged periods as long as the standard tightening procedure is followed.
