Check valve for irrigation system
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Trusted China-Based Manufacturer of lrrigation Check Valve
Advantages of TREX lrrigation Check Valve
- Full product range: spring type, swing type, foot valve (with strainer), wafer type, etc., covering DN15–DN300
- Connection standards: socket, threaded (BSPT/NPT), and flanged (DIN/ANSI/JIS), compatible with multiple systems
- Materials & sealing: PVC/UPVC/CPVC/PPH options with EPDM/NBR/FKM seals; corrosion-resistant, suitable for fertilizers and recycled water
- Performance features: low opening pressure, optimized flow path, low resistance, reduced water hammer; protects pumps and pipelines; bi-directional sealing, easy to disassemble and clean
- Quality control: 100% inspection including appearance, dimensions, and hydrostatic sealing; batch traceability ensures consistent quality
- Engineering support: selection guidance, drawings and datasheets, fast sample delivery
- Production & lead time: in-house molds and injection assembly; stock available for common sizes; OEM/ODM supported with custom colors and logos; low MOQ; typical lead time 7–20 days
- International service: extensive export experience with complete customs documentation and multiple logistics options
- Applications: pump outlet backflow prevention, anti-siphon protection in filtration and fertigation systems, main pipelines and zone valve groups, reservoirs and water tanks
- Pressure & temperature: typical PN10/PN16; working temperature depends on material and sealing configuration
Different Types of lrrigation Check Valve
Irrigation check valves are essential components used to prevent backflow and protect pumps, pipelines, and irrigation systems. Among the various types available, the most commonly used designs include wafer check valves, double union check valves, and wafer check valves with flange sets. These models are widely applied in agricultural irrigation, fertigation systems, and water supply networks due to their compact structure, reliable sealing, and easy installation.
In addition to these main types, there are many other check valve variations such as spring-loaded, swing type, and foot valves with strainers, designed to meet different pressure, flow, and installation requirements. Selecting the right type depends on system design, connection standards, and operating conditions to ensure efficient and long-lasting performance.
PVC Wafer Check Valve
Technical Specifications & Pressure Ratings
Arraste para o lado para ver mais dados ↔️
| DN | d | D1 | P | L | Working Pressure (Mpa) | Minimum Back Pressure (Mpa) |
|---|---|---|---|---|---|---|
| DN40 | 23 | 82 | 36 | 18 | 1.0 | 0.05 |
| DN50 | 27 | 102 | 44 | 21 | 1.0 | 0.05 |
| DN65 | 40 | 120 | 58 | 22 | 1.0 | 0.05 |
| DN80 | 54 | 133 | 70 | 23 | 1.0 | 0.05 |
| DN100 | 70 | 161 | 89 | 25 | 1.0 | 0.05 |
| DN125 | 92 | 191 | 115 | 28 | 1.0 | 0.05 |
| DN150 | 112 | 217 | 131 | 30 | 1.0 | 0.05 |
| DN200 | 150 | 272 | 179 | 34 | 0.6 | 0.05 |
| DN250 | 190 | 327 | 230 | 39 | 0.6 | 0.05 |
| DN300 | 216 | 377 | 260 | 44 | 0.6 | 0.05 |
PVC Wafer Check Valve & Flange Set
Detailed Material List
| No. | Part | Material | QTY |
|---|---|---|---|
| 1 | Body | U-PVC | 1 |
| 2 | Flapper | U-PVC | 1 |
| 3 | Shaft | M-PVC | 1 |
| 4 | O-Ring | EPDM | 1 |
| 5 | O-Ring | EPDM | 2 |
| 6 | Cover | U-PVC | 2 |
| 7 | O Ring | SS304 | 1 |
| 8 | Flow Arrow | U-PVC | 2 |
| 9 | Flange | - | 2 |
| 10 | Bolt Sets | - | 4-16 |
| 11 | Pipe Line | - | 2 |
Structural Diagram
Technical Dimensions & Weight Specifications
Arraste para o lado para ver a tabela completa ↔️
| DN | Inch | ϕ d2 | ϕ d1 | L | ϕ D | Kpa | Weight/kg | Bolt Sets |
|---|---|---|---|---|---|---|---|---|
| DN50 | 2" | 63 | 25 | 32 | 106 | 1.0 | 0.29 | 4-M16x90 |
| DN65 | 2-1/2" | 75 | 32 | 32 | 126 | 1.0 | 0.41 | 4-M16x90 |
| DN80 | 3" | 90 | 41 | 36 | 140 | 1.0 | 0.54 | 8-M16x100 |
| DN100 | 4" | 110 | 58 | 36 | 161 | 1.0 | 0.69 | 8-M16x100 |
| DN125 | 5" | 140 | 73 | 46 | 192 | 1.0 | 1.23 | 8-M16x140 |
| DN150 | 6" | 160 | 94 | 46 | 220 | 1.0 | 1.64 | 8-M20x150 |
| DN200 | 8" | 200 | 120 | 50 | 272 | 0.6 | 2.75 | 8-M20x170 |
| DN250 | 10" | 250 | 160 | 58 | 328 | 0.6 | 4.3 | 8-M20x210 |
| DN300 | 12" | 315 | 210 | 60 | 380 | 0.6 | 5.63 | 8-M20x210 |
| DN350 | 14" | 355 | 225 | 72 | 432 | 0.4 | 10 | 8-M20x240 |
| DN400 | 16" | 400 | 272 | 72 | 484 | 0.4 | 11.56 | 16-M22x240 |
Irrigation PVC Double Union Check Valve
Product Dimensions
| SIZE | d | d1 | d2 | D | L | L1 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ANSI | DIN | JIS | CNS | ANSI | DIN | JIS | CNS | |||||
| 1/2"(15) | 15 | 21.4 | 20.25 | 22.3 | 22.4 | 21.25 | 20.05 | 21.85 | 21.9 | 54 | 91 | 23 |
| 3/4"(20) | 20 | 26.75 | 25.25 | 26.3 | 26.4 | 26.58 | 25.05 | 25.85 | 25.9 | 63 | 106.5 | 26 |
| 1"(25) | 25 | 33.52 | 32.25 | 32.33 | 34.5 | 33.28 | 32.05 | 31.85 | 33.9 | 73.5 | 125 | 29 |
| 1-1/4"(32) | 32 | 42.28 | 40.25 | 38.43 | 42.5 | 42.05 | 40.05 | 37.85 | 41.9 | 84.5 | 141 | 33 |
| 1-1/2"(40) | 40 | 48.4 | 50.25 | 48.46 | 48.6 | 48.12 | 50.05 | 47.75 | 47.9 | 98 | 150.5 | 35.5 |
| 2"(50) | 50 | 60.45 | 63.25 | 60.56 | 60.6 | 60.18 | 63.05 | 59.75 | 59.9 | 119 | 169.5 | 38.5 |
↔ Arraste lateralmente para ver todas as normas (ANSI, DIN, JIS, CNS)
Why TREXirrigation Leads in Quality and Service for lrrigation Check Valve
Raw material inspection
The quality of raw materials is essential for the durability and performance of our drip irrigation tubing. We use only premium-grade polyethylene resins and perform strict UV aging and burst pressure tests to ensure each batch meets global agricultural standards. This rigorous quality control guarantees long-lasting reliability and resistance to environmental stress, reinforcing our position as a trusted drip irrigation tubing manufacturer.
Precision machining inspection
Final Inspection
Customer Satisfaction
As a dedicated irrigation solutions provider, our company operates around the clock to deliver high-quality irrigation system valves, tubing, fittings, and a full range of irrigation accessories. We offer customized solutions tailored to the specific needs of our clients, whether for agricultural, landscaping, or industrial applications. With a strong focus on timely delivery and production efficiency, we ensure every order meets customer expectations. Our mission is to support modern irrigation systems with reliable, precision-engineered products and exceptional service.
The lowest cost strategy is to choose reliable TREXirrigation products.
FAQ
What's your price?
Do you accept OEM?
Can you assist me in developing new products? How long will it take?
Order Minimum Quantities
Usually, our MOQ for irrigation valves and fittings is 10 boxes. If a customized trademark is required, additional negotiation is required. For pipes, it depends on the material. Please contact us via email for specific minimum order quantities.
Can you provide related documents?
We can provide product certificates and various certificates of origin to help you quickly clear customs and apply for tariff preferences.
Customized labeling and packaging services
We provide custom solutions designed to meet your unique irrigation requirements. Our drip irrigation tubing, valves, and fittings can be customized with your exclusive logo, color, and packaging. Typically, we offer two customization methods: laser engraving or mold inserts. For large-volume orders, we recommend using mold inserts, while laser engraving is ideal for smaller quantities.
For specific requirements and quantities, please contact us via email for more details.
How long is your lead time?
The delivery time for orders is contingent on the quantity requested and current inventory levels. Standard delivery is typically completed within 30 working days, with some products potentially being delivered even more quickly.
How about the shipping fees?
We provide express, air, sea to port, door-to-door services. We cooperate with professional freight forwarding companies to provide expert services. For large quantity orders, sea shipping is the best choice. You just need to tell me the products, quantity and location you need, and we will provide you with a professional transportation solution.
Delivery location and transportation method
We provide global shipping for our pipe system accessories, with Ningbo Port serving as our default shipping port. For details regarding shipping to your particular location, please consult with our shipping department.
Payment Methods
We accept multiple payment methods such as bank transfer, credit card and letter of credit. Please contact our sales staff to learn more about the best options for your business.
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We'd like to work with you
Send us a message if you have any questions or request a quote. Our experts will give you a reply within 24 hours and help you select the right valve you want.
- +86 574 88324025
- Whatsapp +86-180-6909-4526
- Email:[email protected]