2" Plastic Zero Differential Solenoid Valve N/O
Technical Details
Product Overview
The PSL-50K is our 2”, two-way, zero-differential normally open valve. This valve is considered a semi-direct acting or assisted-lift solenoid valve. These are extremely versatile in that they can work from zero bar while still boasting a high flow rate. This valve has a 50mm internal orifice and a flow rate of 48 Cv. At the maximum pressure, 60 PSI, this equates to a flow of 345 gallons per minute! The large internal orifice and zero-differential pressure requirement make this valve excellent for gravity feed applications as well.
This is a 2-way valve, meaning it has two ports: an inlet port and an outlet port. These ports are threaded with Female National Pipe Thread, making installation easy and tool-free. Normally Open refers to the position the valve is in without power; this valve will be open without power and close when energized.
Molded from PA66 Nylon Plastic, our 2” Normally Open Valve is not only large but built solid. This is a good substitute for stainless steel valves, as it is completely lead-free and offers great chemical resistance. When designing this valve, we opted for EPDM diaphragms for this line-up. We found this seal offers better resistance to higher temperatures than NBR or Viton seals. Similar to the PA66 body, this diaphragm has great chemical resistance.
The PSL-50K comes with our tough and reliable 210 Series coil. For easy installation, this coil comes standard with a 43650A DIN connector. This allows installers to run wires directly from the power supply into the screw-down terminals inside the connector. This valve can be configured in any of the five most common coil voltage configurations: 12VDC, 24VDC, 24VAC, 110VAC, and 220VAC. Our 210 coils require 38 Watts for the DC voltages and 36VA for the AC voltages. Similar to most solenoid valves, this is a constant power draw when energized; it is encouraged to reserve additional power than required to account for variances in the outputs of different power sources.
Common Applications
- This valve is extremely popular with potable water applications and home uses.
- This valve can be used with air, gas, fuel, diluted acids, ketones, alkalis, and food-grade applications.
- These coils have an IP65 waterproof level, making them great for indoor or outdoor use and short-term protection against splashing and low-pressure water jets at all angles.
Installation
- The valve must operate in the direction noted by the arrow molded into the body.
- A pre-filter is recommended to keep the diaphragm free from debris and the valve functioning properly.
*Consult a chemical compatibility expert for correct seal and valve body material choice.
Wiring Instructions
- Loosen and remove the Phillips-head screw securing the DIN connector to the coil.
- Detach the DIN connector from the coil.
- Open the DIN connector housing by prying at the small slot located in the bottom corner next to the Earth terminal.
- Inside the housing, locate the screw terminals:
- Terminal 1: Connect the hot or positive wire.
- Terminal 2: Connect the neutral or negative wire.
- Earth Terminal (for AC voltages only): Connect the ground or Earth wire.
- Ensure all screw terminals are securely tightened for a reliable connection.
- Reassemble the DIN connector by reversing the steps above.
