Level Switch for Controllers & Metering Pumps
Walchem’s polypropylene tank level switches have excellent chemical resistance and work well in chemicals that are clean and non-coating or scaling. The reed switch output provides a reliable input to our controllers and most metering pumps
These level switches come complete with support pipe of various lengths, 2” NPT drum mounting fitting and height adjustment gland.
The level switch is placed in the tank, with the switch positioned near the bottom of the tank. The specific gravity of the chemical raises the float, activating the switch. When the tank is empty, the float drops and the switch is deactivated.
Specifications
- MATERIALS: Polypropylene
- ACCURACY: ±5 mm in water
- REPEATABILITY: ±2 mm in water
- EXTREME ORIENTATION: ±20° from vertical
- SPECIFIC GRAVITY: 0.8 to 1.2
- REED TYPE: Dry contact SPST
- REED RATING: 120 VAC, 102 VDC at 50 VA
- REED OUTPUT: Normally Open
- DIMENSIONS: 0.8” 20 mm diameter
- MOUNTING FITTING: 2” NPTM
- CABLE: 22 AWG, 2 conductor
- TEMPERATURE: -40 to 194°F (-40 to 90°C)
- PRESSURE: 25 psi ( 2 bar) @ 25°C Derated at 1.667 psi (0.113 bar) per °C above 25°C
