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new specification:  http://www.jiachunna.com.cn/index.php/product/index/g/e/id/4.html

Standard price is 1000 units in a order, EXW price. 

 if less quantity, price will be higher; if more quantity, price will be lower.

This PTFE Teflon Paddle flow switches could used in all kinds of corrosion condition, e.g. Paper mills, chemical plants, chlorine liquid flow sensor, sewage treatment plant, washing plant, printing, printing and dyeing, electroplating plants, pharmaceutical plants. 

This products is produced by special plastic material, so it could work with high performance in Chemical and Corrosion environment. 

Technology Data:

* Protection Grade  IP68 in Option
* Substance Temperature -25C ~ 115 C
* Max Volage: 350V DC; 300V AC
* Max Switch Current: 1.0A
* Max Carry Current: 2.5A
* Contact Rating: 70VA
* Max Static Pressure  10 Bar
* Metering Substances  Gas, Water, Oil (If special substances, please declare)
* Output: SPST BMF Magnetic Switch (Normal Open is standard, N.C is optional)
* PNP or NPN switch signal output is available

This products is produced by teflon plastic material with a long paddle, suitable for big pipe, used in SPA Appliance, Sea Water Heating Systerm, Water Purification Equipment, Welding Equipment, Laser Systerm, to measure or control the flow rate.   

Specification
* No Pressure Loss
* Proven paddle type in compact design, especially for serial applications.
* Glass-fibre reinforced plastic ensures high stability
* With pipe section or for push-in installation into manifolds of customer fittings
* Long-term stable switching point, retreatment of paddle by magnetic force, no spring fatigue 
* Low Pressure Drop & Anti Corrosion environment to control flow, e.g. Swimmin Poll Heating Pump, Sea Water Pump, Central Heating Water Systerm, chlorine.

This products is produced by special teflon plastic material, so it will work with a high performance about Chemical and Corrosion.