Duoling DN65 2.5" valve amplifier for sand filter with plastic injection molding

1. valve amplifier

2. Hydraulic or Pneumatic

3. manufacture price

4. Durable,refined

valve amplifier 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 :

1.  valve amplifier 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.