Aquatec's PSW tank pressure sensing electrical switch is intended for in-line mounting as close to the hydropneumatic
product water tank as possible. Its purpose is to turn off the Booster Pump when the tank is full. The normally closed
switch can be factory pre-set at various shut-off pressures. The PSW, when used with a typical under-counter RO system,
enables the hydraulic shut-off PSW, with two John Guest half cartridges, is available for either 1/4" or 3/8" tubing.
Optionally available are 1/4" or 3/8" Jaco elbows.|
The PSW can be field modified to operate as normally open switch by changing the wire terminal connector from the NC to the NO switch spade contact.
|Part No.||Fitting (JG)||Pressure||Switch Rating||Switch|| Pressure|
|PSW 240||1/4"||1/4"||20||40||250 VAC, 15A||Normally Closed||100 psi|
|PSW 260||1/4"||1/4"||40||60||250 VAC, 15A||Normally Closed||100 psi|
|PSW 280||1/4"||1/4"||60||80||250 VAC, 15A||Normally Closed||100 psi|
|PSW 340||3/8"||3/8"||20||40||250 VAC, 15A||Normally Closed||100 psi|
|PSW 360||3/8"||3/8"||40||60||250 VAC, 15A||Normally Closed||100 psi|
|PSW 380||3/8"||3/8"||60||80||250 VAC, 15A||Normally Closed||100 psi|
The ESO 460 Electronic Shut-Off Valve is a normally closed solenoid valve that positively shuts-off the feed-water when
the product water tank is full. it is activated by our TSO Tank Shut-Off electrical switch to open and close at the same
time the R.O. system water making mode is activated on and off. This valve represents an economical solution for
applications where low flow (less than 1000 mL/min) or low pressure (less than 45 psi) conditions need to be
electronically controlled. The valve is mounted in-line on the inlet feed-water side of the pump, and is powered by the
pump transformer. The valve is available with a .062" diameter orifice for low flow applications or a .093" diameter
orifice for high flow applications.|
The ESO DC-100 heavy duty Electronic Shut Off valve is powered by AQUATEC's exclusive,patent pending energy saving 24 volt coil circuit. The energy saving circuit is hermetically sealed in the valve housing to protect against moisture, thereby assuring long life. This valve is suitable for flows up to 2500 mL/min and pressures up to 100 psi. The unique energy saver circuit performance allows the valve to operate continuously without heat build up without AC coil noise. The ESO DC-100 can be powered by either AC or DC voltage.