- 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 Support: Available
- Chemical Resistance: Yes
- Brand: Duoling
- Actuator: Electric
- Material: Plastic
- Pressure Rating: Low Pressure
- Function: Solenoid Valve
- Standard: DIN
- Connection Type: Flange or Coupling
- Material Type: PA6 (Polyamide)
- Manufacturer: Yes
- Size Range: 2" - 6"
- Control Method: Air or Liquid Operated
- Origin: Changzhou, China
Electric Motorized 12V Flush Diaphragm Valve – 2 Inch
The water treatment diaphragm valves are lightweight and rust-resistant, made from high-quality plastic materials that offer excellent durability. These valves are designed with anti-aging properties to resist degradation from sunlight exposure. Each unit undergoes a pressure test before shipping, ensuring a maximum pressure capacity of 15kg.
Here’s how the internal structure works:



1. This valve is ideal for sand filters, replacing two electric or pneumatic valves, offering simple control and efficient operation;
2. Made from PA6 (Nylon), it can withstand up to 1.0MPa working pressure;
3. Features a clamp connection for easy installation and removal;
4. Resistant to rust and corrosion, suitable for use in weak acid environments;
5. Offers excellent aging resistance, making it suitable for outdoor applications;
6. Provides fast switching and stable performance;
7. Easy to replace parts, reducing maintenance costs;
8. The diaphragm is made from advanced rubber material with good elasticity and reinforced with imported high-strength fabric for better rebound performance;
9. Equipped with bilateral waterproof rubber seals to prevent leaks during operation;
10. Includes a hold hoop on top for safer operation and easier internal part replacement;
11. Finished with professional nylon paint for an attractive appearance.
Shipping Options:
1. Express shipping via DHL, TNT, UPS, FEDEX, EMS – best 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 is received 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:
No returns or refunds for non-quality issues. If the issue is not our fault, we’ll send spare parts at your cost.
Situation 2:
For quality issues caused by us, we accept returns within 15 business days of delivery. We will either repair, replace, or provide new units as needed.
Payment Methods:
We accept bank transfer (T/T), letter of credit (L/C), Western Union, and cash. Please send a scanned copy of your payment receipt by email to speed up processing.
Warranty:
All products come with a minimum 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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Guangzhou Chengbian Chemical Technology Co., Ltd. , https://www.gzcbct.com