Nylon Material Water Control Backwash Automatic 4′′ 2 Way Diaphragm Valve

  • Actuator: Electric
  • Material: Nylon
  • Pressure: High Temperature
  • Function: Solenoid Valve, Electronic Type
  • Standard: GB, JIS
  • Color: Black
  • Max Pressure: 1MPa
  • OEM: Yes
  • Chemical Resistant: Yes
  • Trademark: Duoling
  • Origin: Changzhou, China
  • Connection: Flanged Diaphragm Valve
  • Structure: 2 Way Valve
  • Flow Direction: Reversing
  • Usage: Flow Control
  • Model: Water Treatment Diaphragm Valves
  • Meterial: PA6
  • Manufacturer: Yes
  • Size: 2 "- 6"
  • Control Way: Air or Liquid
  • Specification: DN50-DN150
  • HS Code: 8481802990

Nylon material water control backwash automatic  4'' 2 way diaphragm valve

1. water treatment diaphragm valves

2. Hydraulic or Pneumatic

3. manufacture price

4. Durable,refined

Product Description

water treatment diaphragm valves is lighter and rustless than those made of iron. It's added anti-aging to prevent aging after sunlight. And every valve have been pressure tested before shipment (15kg).

Below is the working process for its internal structure :

Nylon Material Water Control Backwash Automatic 4'' 2 Way Diaphragm Valve
Nylon Material Water Control Backwash Automatic 4'' 2 Way Diaphragm Valve
Nylon Material Water Control Backwash Automatic 4'' 2 Way Diaphragm Valve
1.  water treatment diaphragm valves can be used in sand filters, replacing two sets of electric or pneumatic valves, easy to be controlled;

2. PA6 (Nylon) material, max working pressure is 1.0MPa;

3. Clamp connection, easy installation and removal;

4. Never rust, corrosion resisting, can be used in weak acid environment;

5. Good aging resistance, can be used in the open air;

6. Switch quickly, good operation stability;

7. Easy to replace parts, low maintenance costs;

8. The diaphragm is made of advanced rubber material which has good elasticity, between rubber is the imported     high strength net cloth with good rebound performance;

9. With the bilateral dovetail waterproof rubber seal ring, it prevents water leakage of operation;

10. With the hold hoop on top, it's much safer and is convenient to change the parts inside;

11. External uses professional nylon paint treatment, excellent appearance.


Shipping Ways:

1. By express: DHL, TNT, UPS, FEDEX, EMS etc, usually for small or regular and urgent orders
2. By sea transportation for bulk quantity
3. By air transportation.

Delivery time:

Shipping times are approximately 5-7 days for sample orders and 7-15 days for regular orders, after payment is done instantly by T/T, W.U. (weekends not included).

If we have any stock for your order, we will shipped out goods immediately on receipt of your payment.


Situation 1
If no quality problem, there is no returns or refund. If there's any problem not caused by us, we are pleasure to fix it by sending some spare parts to you, and please bare the shipping cost.

Situation 2
For any quality problem caused by us, we provide refund for returns made within 15 business days of the delivery date. Or we fix it or make new ones for you as request.


We accept TT payment(Bank Transfer), L/C, Western Union & Cash, etc..

Please remember to send us scaned recipt of T/T or other payment copy by Email, this will speed up the processing of your order.


All our products have at least 1 year warranty. If there's any quality problems during the warranty period, we ship new spare parts for replacement free for you, or we accept return policy.



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