- Model No.: DN100
- Connection: Flanged Diaphragm Valve
- Structure: Angle Type Diaphragm Valve
- Flow Direction: Unidirectional
- Usage: Drainage
- Model: Water Treatment Diaphragm Valves
- Color: Black
- Max Pressure: 1MPa
- OEM: Available
- Chemical Resistant: Yes
- Trademark: Duoling
- Actuator: Electric
- Material: Plastic
- Pressure: Low Pressure
- Function: Solenoid Valve
- Standard: DIN
- Connection Type: Flange or Coupling
- Material: PA6 (Polyamide 6)
- Manufacturer: Yes
- Size: 2" - 6"
- Control Way: Air or Liquid Operated
- Origin: Changzhou, China
The water treatment diaphragm valves are designed to be lightweight and rust-free, offering superior performance compared to traditional iron-based models. These valves are also treated with anti-aging additives to ensure long-term durability even when exposed to sunlight.
Each valve undergoes a pressure test before shipping at 15 kg to guarantee reliability and safety during operation.
Below is an overview of its internal working mechanism:


1. The water treatment diaphragm valve can be used in sand filters, replacing two sets of electric or pneumatic valves, making it easier to control.
2. Made from PA6 (Nylon) material, it can withstand a maximum operating pressure of 1.0MPa.
3. Features a clamp connection for easy installation and removal.
4. Resists corrosion and can be used in weak acid environments.
5. Excellent aging resistance, suitable for outdoor use.
6. Fast switching and stable operation.
7. Easy to replace parts, which reduces maintenance costs.
8. The diaphragm is made from advanced rubber with high elasticity, reinforced with imported high-strength fabric for better rebound performance.
9. Equipped with bilateral dovetail waterproof rubber seals to prevent leakage during operation.
10. Features a top hold hoop for enhanced safety and convenient internal part replacement.
11. Finished with professional nylon paint for an 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 for time-sensitive shipments.
Delivery Time:
Approximately 5–7 days for sample orders, and 7–15 days for regular orders after payment via T/T or W.U. (excluding weekends).
If stock is available, we will ship your order immediately upon receipt of payment.
Returns Policy:
Situation 1: If no quality issues are found, returns are not accepted. For problems not caused by us, we will send spare parts at your expense to resolve the issue.
Situation 2: For quality issues caused by us, we offer a full refund or replacement within 15 business days of delivery. We can also repair or replace the product as needed.
Payment Options:
We accept bank transfer (T/T), letter of credit (L/C), Western Union, and cash. Please send a scanned copy of your payment receipt via email to speed up processing.
Warranty:
All products come with at least a 1-year warranty. If any quality issues arise during this period, we will provide free replacement parts or accept returns as per our policy.

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