- Model No.: DN40-DN150
- Connection: Flanged Diaphragm Valve
- Structure: 2 Way Valve
- Flow Direction: Reversing
- Usage: Flow Control
- Model: Water Treatment Diaphragm Valves
- Material: PA6 (Polyamide)
- Manufacturer: Yes
- Size: 2" - 6"
- Control Method: Air or Liquid Operated
- Specification: DN50-DN150
- HS Code: 8481802990
- Actuator: Electric
- Material: Nylon
- Pressure Rating: High Temperature
- Function: Solenoid Valve, Electronic Type
- Standards: GB, JIS
- Color: Black
- Max Pressure: 1MPa
- OEM Available: Yes
- Chemical Resistance: Yes
- Brand: Duoling
- Origin: Changzhou, China
Three-Way Plastic Valve for Water Treatment and Irrigation Systems
1. Water treatment diaphragm valves
2. Hydraulic or Pneumatic Operation
3. Competitive Manufacturing Price
4. Durable and Refined Design
Our water treatment diaphragm valves are made from high-quality plastic materials, making them lighter and more corrosion-resistant than traditional metal valves. They are also treated with anti-aging agents to ensure long-term durability even when exposed to sunlight. Each valve undergoes rigorous pressure testing before shipping at 15kg.
Below is an overview of the internal working mechanism:
1. These diaphragm valves can replace two sets of electric or pneumatic valves in sand filtration systems, offering easy control and operation;
2. Made from PA6 (Nylon), with a maximum working pressure of 1.0MPa;
3. Features a clamp connection for quick installation and maintenance;
4. Resistant to rust and corrosion, suitable for use in weak acidic environments;
5. Excellent aging resistance, ideal for outdoor applications;
6. Quick switching with stable performance;
7. Easy to replace parts, reducing overall maintenance costs;
8. The diaphragm is made of advanced rubber material with high elasticity and reinforced with imported high-strength fabric for better rebound performance;
9. Equipped with bilateral waterproof rubber seals to prevent leakage during operation;
10. Includes a top hold hoop for enhanced safety and ease of internal component replacement;
11. Finished with professional nylon paint for a durable and attractive appearance.
Shipping Options:
1. Express shipping 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::
Standard delivery time is approximately 5–7 days for samples and 7–15 days for regular orders after payment is received via T/T or W.U. (excluding weekends).
If we have stock available, we will ship your order immediately upon receiving payment.
Returns Policy:
Situation 1:
If there is no quality issue, returns or refunds are not accepted. If the problem is not caused by us, we will send spare parts free of charge, but you will be responsible for the shipping cost.
Situation 2:
For any quality issues caused by us, we offer a full refund for returns within 15 business days of delivery. Alternatively, we can repair or replace the item as requested.
Payment Methods:
We accept bank transfer (T/T), letter of credit (L/C), Western Union, and cash payments.
Please send a scanned copy of your payment receipt via email to speed up the order processing.
 Warranty:
All our products come with at least a 1-year warranty. In case of any quality issues during the warranty period, we will provide free replacement parts or accept returns if needed.
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