AQUA MINA PVC Knife Gate Valve – Flow Control Solution for Fish and Shrimp Farming
The product is targeted at two main application groups: building water supply and drainage systems with pressure below 10 meters of water column, and fish and shrimp farming systems.
1. What is a PVC Knife Gate Valve?
A PVC knife gate valve uses a plate-type valve disc to open or close the flow in a pipeline. During operation, the disc moves vertically to control water flow without requiring much surrounding space. Compared to conventional shut-off valves, knife gate valves feature a simple design, easy operation, and suitability for systems requiring frequent flow control.

In the market, knife gate valves are made from various materials like stainless steel, cast iron, steel, brass, or plastic. For systems in constant contact with water or saltwater, selecting a corrosion-resistant material is critical.
2. 9 Reasons to Choose AQUA MINA PVC Knife Gate Valve
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2.1. Competitive Pricing: The AQUA MINA Ø168mm PVC knife gate valve offers a competitive price, optimizing system investment costs. Combined with durable materials, stable operation, and low maintenance, it is the ideal choice for fish and shrimp farming systems under harsh weather conditions.
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2.2. Upgraded 304 Stainless Steel Handle: Equipped with 2 sturdy handles for smoother operation. The 304 stainless steel handle resists rust, minimizes bending or breakage, and can integrate with automated control mechanisms.
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2.3. Monolithic Cast PVC Body: The body is made of monolithic cast PVC, creating a solid structure with high corrosion resistance. It is well-suited for water supply, drainage, and saltwater aquaculture environments.

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2.4. 3mm Thick 304 Stainless Steel Blade: The 3mm thick 304 stainless steel blade provides strong rigidity and rust resistance, withstanding pressure during operation.
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2.5. 24-Month Warranty – 1-to-1 Replacement: AQUA MINA offers a 24-month warranty with a 1-to-1 replacement for manufacturer defects, giving long-term peace of mind.
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2.6. Wide and Clear Valve Bore: When fully open, the spacious bore ensures unobstructed water flow, minimizing flow resistance. This design avoids snag points, preventing trapped debris and reducing the risk of scratching fish and shrimp.

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2.7. High Durability & Long Lifespan: The combination of a PVC body and 304 stainless steel components allows a lifespan of up to 20 years under proper conditions—2 to 3 times longer than standard valves.
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2.8. Easy Assembly & Maintenance: Simple structure allows for convenient installation, disassembly, inspection, and maintenance without complex procedures.
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2.9. Ready Stock – High-Volume Supply: Large in-stock inventory enables rapid fulfillment of orders from 500 to 1,000 units without waiting for pre-orders. Product images are carefully packaged to ensure safe transport to customer farms.

3. Applications of AQUA MINA PVC Knife Gate Valves in Fish and Shrimp Farming
Used to control water flow between farm sections, key applications include:
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Water intake pipelines for fish and shrimp ponds
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Pond drainage systems
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Nursery ponds and tanks
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Water treatment and recirculation systems
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High-tech, intensive, and super-intensive shrimp farms

Real images from a customer farm in Vung Tau.
4. Available Sizes
AQUA MINA provides PVC Knife Gate Valves in various diameters:
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PVC Knife Gate Valve 140 mm
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PVC Knife Gate Valve 160 mm
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PVC Knife Gate Valve 168 mm (Ideal for high-flow requirements)
When selecting a valve, consider pipe diameter, flow rate, working pressure, and installation conditions.
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5. AQUA MINA PVC Knife Gate Valve – Partner in Aquaculture Flow Control
AQUA MINA develops products tailored to practical operational needs, offering an optimal flow control solution for water infrastructure and aquaculture. Contact AQUA MINA for sizing advice, application suitability, and installation solutions.
AQUA MINA CO., LTD

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