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Our plastic (ABS) two-position three-way valve 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).
This valve is widely used in automatic backwash disc filtration system, driven by the pressure of pipelines and realize filter’s backwash automatically. It is simple-structured, practical, and can run for a long time without maintenance. The diaphragm can change the direction of stream quickly and stably. When backwash inlet is open, the water inlet is closed, or vice versa. It can avoid overflow of filter or mixing of clean water and waste water.
Features:
Standard or Nonstandard: Standard 
Structure: Diaphragm 
Pressure: Medium Pressure 
Power: Hydraulic 
Material: Plastic 
Temperature of Media: Normal Temperature 
Media: Water 
Port Size: 2" 3" 4" 5" 6"   
connection: flange or coupling 
Color: Black 
Meterial: PA6 
Max Pressure: 1Mpa 
Certification: ISO9001 
Size: 1.5 "- 6" 
Chemical resistant: Yes
Packaging Details:4 inch ball valve is packed by carton box, or according to client's requirement
Delivery Detail:  Within a week after getting payment 
Features of 2 Position 3 Way Valve:
1.It can be used in sand filters, replacing two sets of electric or pneumatic valves, easy to be controlled;
2.Made of 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.