- Actuator: Electric
- Material: Plastic
- Pressure: Low Pressure
- Function: Solenoid Valve
- Standard: DIN
- Connection Type: Flange or Coupling
- Material: PA6 (Nylon)
- Manufacturer: Yes
- Size: 2" - 6"
- Control Way: Air or Liquid
- Origin: Changzhou, China
- Connection: Flanged Diaphragm Valve
- Structure: Angle Type Diaphragm Valve
- Flow Direction: Unidirectional
- Usage: Drain
- Model: Water Treatment Diaphragm Valves
- Color: Black
- Max Pressure: 1MPa
- OEM: Yes
- Chemical Resistant: Yes
- Trademark: Duoling
Water treatment diaphragm valves are lightweight and rust-free compared to traditional iron valves. They are treated with anti-aging properties to prevent degradation from sunlight exposure. Each valve undergoes a pressure test before shipping at 15kg.
Below is an overview of the internal working mechanism:



1. These water treatment diaphragm valves can be used in sand filters, replacing two sets of electric or pneumatic valves, making them easy to control;
2. Made from PA6 (Nylon), they can handle a maximum working pressure of 1.0MPa;
3. Feature a clamp connection, allowing for quick and simple installation and removal;
4. Resistant to rust and corrosion, suitable for use in weak acid environments;
5. Excellent aging resistance, ideal for outdoor use;
6. Operate quickly and maintain stable performance;
7. Easy to replace parts, reducing maintenance costs;
8. The diaphragm is made from advanced rubber material with good elasticity, reinforced with imported high-strength fabric for excellent rebound performance;
9. Equipped with bilateral dovetail waterproof rubber seals to prevent leakage during operation;
10. Features a hold hoop on top for enhanced safety and ease of internal part replacement;
11. Finished with professional nylon paint for a durable and attractive appearance.
Shipping Methods:
1. Express delivery via DHL, TNT, UPS, FEDEX, EMS – ideal for small or urgent orders.
2. Sea freight for bulk orders.
3. Air freight available upon request.
Delivery Time:
Approximately 5–7 days for sample orders, and 7–15 days for regular orders after payment. Orders will be shipped immediately if stock is available.
Returns Policy:
Situation 1: If there’s no quality issue, returns are not accepted. If the problem isn’t our fault, we’ll send spare parts free of charge, but you’ll need to cover the shipping cost.
Situation 2: For quality issues caused by us, we offer a 15-day return window from the delivery date. We will either refund, repair, or replace the product as needed.
Payment Options:
We accept T/T, L/C, Western Union, and Cash. Please send a scanned copy of your payment receipt via email to speed up order processing.
Warranty:
All products come with at least a 1-year warranty. If any quality issues arise within this period, we will provide free replacement parts or accept returns.
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