AQUA MINA PVC Knife Gate Valve – Flow Control Solution for Fish and Shrimp Farming
The product targets 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 within a pipeline. During operation, the disc moves vertically, allowing flow control without requiring significant surrounding space. Compared to conventional shut-off valves, knife gate valves feature a simple design, easy operation, and high suitability for systems requiring frequent flow shut-off and release.
In the market, knife gate valves are manufactured from various materials such as stainless steel, cast iron, steel, brass, or plastic. For systems in constant contact with water or saltwater, selecting corrosion-resistant materials is critical.

2. 9 Reasons to Choose AQUA MINA PVC Knife Gate Valve
-
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 performance, and low maintenance needs, it is ideal for fish and shrimp farming ponds operating in harsh weather conditions.
-
2.2. Upgraded 304 Stainless Steel Handle: Equipped with 2 sturdy handles for smoother and more convenient operation. The 304 stainless steel handle resists rust, minimizes bending or breakage, and can be integrated with automated control mechanisms when needed.
-
2.3. Monolithic Cast PVC Body: The body is made from monolithic cast PVC, creating a solid structure with high corrosion resistance. PVC material fits various operating conditions, particularly water supply/drainage systems and saltwater aquaculture environments.

-
2.4. 3mm Thick 304 Stainless Steel Blade: Featuring a 3mm thick 304 stainless steel blade with strong rigidity and high rust resistance, ensuring stable pressure resistance during operation in constant contact with water.
-
2.5. 24-Month Warranty – 1-to-1 Replacement for Manufacturer Defects: AQUA MINA applies a 24-month warranty policy with a 1-to-1 replacement for manufacturer defects, providing long-term peace of mind for buyers.
-
2.6. Wide and Clear Valve Bore: When fully opened, the spacious bore ensures unobstructed water flow, minimizing resistance. This design avoids snag points, preventing trapped debris and reducing the risk of scratching fish and shrimp.
-
2.7. High Durability & Long Lifespan: The combination of a PVC body, 304 stainless steel handle, and 304 stainless steel blade offers exceptional durability. Under design and actual usage conditions, the product can achieve a lifespan of up to 20 years—2 to 3 times longer than standard valves.

-
2.8. Easy Disassembly & Maintenance: The simple structure allows convenient installation, disassembly, inspection, and maintenance without complex procedures.
-
2.9. Ready Stock – Fulfilling High-Volume Orders: AQUA MINA maintains a large inventory to rapidly fulfill orders from 500 to 1,000 units without long pre-order waiting times. (Carefully packaged product images ensure safe transport to customer farms).

3. Applications of AQUA MINA PVC Knife Gate Valves in Fish and Shrimp Farming
In aquaculture, the valve controls water distribution between farm sectors. Key application areas include:
-
Water intake pipelines for fish and shrimp ponds
-
Pond drainage systems
-
Nursery ponds and tanks
-
Water treatment and recirculation systems
-
High-tech, intensive, and super-intensive shrimp farms

The PVC body combined with a 304 stainless steel disc ensures high performance in saltwater environments at shrimp farms. (Real images at a customer farm in Vung Tau).
4. Available Sizes of AQUA MINA PVC Knife Gate Valves
AQUA MINA supplies PVC Knife Gate Valves in multiple sizes to fit different pipe diameters:
-
PVC Knife Gate Valve 140 mm
-
PVC Knife Gate Valve 160 mm
-
PVC Knife Gate Valve 168 mm (Ideal for high-flow requirements)
.png)
Selection should be based on pipe diameter, flow rate, working pressure, and actual installation conditions.
5. AQUA MINA PVC Knife Gate Valve – Partnering with Aquaculture Water Systems
Leveraging expertise in aquaculture equipment and solutions, AQUA MINA develops products tailored to practical operational needs. Contact AQUA MINA for sizing advice, application suitability, and optimal installation plans.
AQUA MINA CO., LTD

WE WORK FOR THE SUCCESS






