**Product Specifications**
  • Model No.: DN80
  • Connection: Flanged Diaphragm Valve
  • Structure: Angle Type Diaphragm Valve
  • Flow Direction: Unidirectional
  • Usage: Drainage
  • Model: Water Treatment Diaphragm Valves
  • Color: Black
  • Max Pressure: 1 MPa
  • OEM Support: Available
  • Chemical Resistance: Yes
  • Brand: Duoling
  • Origin: Changzhou, China
  • Actuator: Electric
  • Material: Plastic (PA6)
  • Pressure Rating: Low Pressure
  • Function: Solenoid Valve
  • Standard: DIN
  • Connection Type: Flange or Coupling
  • Manufacturer: Yes
  • Size Range: 2" - 6"
  • Control Method: Air or Liquid Operated
  • Specification: 25-150
  • HS Code: 8481804090
24VDCS Inlet Solenoid Off Balls Valve
No. Inlet × Outlet Connection Length (mm)
1 DN40×DN40 DN40 Flange 246
2 DN50×DN50 DN50 Flange 246
3 DN65×DN65 DN65 Flange 340
4 DN80×DN80 DN80 Flange 340
5 DN100×DN100 DN100 Flange 410
6 DN150×DN150 DN150 Flange 450


2 Position 3 Way Valve
Inlet × Outlet × Drain (inch) OD of Inlet/Outlet Pipe OD of Drain Pipe
3×3×2 Victaulic 3" (90mm) Victaulic 2" (63mm)
3×3×2.5 Victaulic 3" (90mm) Victaulic 2.5" (75mm)
3×3×3 Victaulic 3" (90mm) Victaulic 3" (90mm)
4×4×3 Victaulic 4" (114mm) Victaulic 3" (89mm)
4×4×4 Victaulic 4" (114mm) Victaulic 4" (114mm)
5×5×4 Victaulic 5" (140mm) Victaulic 4" (114mm)
6×6×6 Victaulic 6" (165mm) Victaulic 6" (165mm)


Product Description
Water treatment diaphragm valves are designed for durability and efficiency in water filtration systems. These valves are lightweight and resistant to rust, making them ideal for long-term use in various environments. The material is enhanced with anti-aging properties to prevent degradation from sunlight exposure. Each valve undergoes a pressure test before shipment at 15 kg/cm² to ensure reliability. The internal structure allows for smooth operation and easy control. It can be used in sand filters as a replacement for two sets of electric or pneumatic valves, offering efficient and simple control. The valve is made of PA6 (Nylon) with a maximum working pressure of 1.0 MPa. It features a clamp connection for easy installation and removal. These valves are corrosion-resistant and suitable for weak acid environments. They also have excellent aging resistance, allowing them to be used outdoors without damage. The quick switching mechanism ensures stable operation, while the replaceable parts reduce maintenance costs. The diaphragm is made from advanced rubber with high elasticity and reinforced with imported high-strength fabric for better rebound performance. A bilateral dovetail waterproof rubber seal ring prevents water leakage during operation, and a hold hoop on top makes it safer and easier to replace internal components. The exterior is treated with professional nylon paint for an attractive finish. FAQ
Shipping Options:
1. By express (DHL, TNT, UPS, FEDEX, EMS) – suitable for small or urgent orders.
2. By sea – ideal for bulk quantities.
3. By air – for time-sensitive shipments.
Delivery Time:
- Sample orders: approximately 5–7 days after payment.
- Regular orders: 7–15 days after payment (excluding weekends).
If stock is available, we will ship your order immediately upon receiving payment.
Returns Policy:
- If no quality issues are found, returns or refunds are not accepted. For issues not caused by us, we will provide spare parts, but you will be responsible for shipping costs.
- If the issue is due to our fault, we offer a 15-day return policy from the delivery date, including free replacements or repairs as needed.
Payment Methods:
We accept T/T (Bank Transfer), L/C, Western Union, and Cash. Please send a scanned copy of your payment receipt via email to expedite the order processing.
Warranty:
All products come with a minimum 1-year warranty. If any quality issues occur within this period, we will provide free replacement parts or accept returns as needed.

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