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控制配件 - PSW, ESO
PSW 壓力式儲水槽電子控制開關
  1. 價格便宜的
  2. 高精密度的
  3. 具高度的品質信賴性
  4. 100% 工廠內製程測試
  5. 嵌入式英國 John Guest 精密快速接頭
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
Max. Inlet
Inlet Outlet On Off
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

ESO Electronic Shut-Off Valve
  1. Conserves water
  2. Positive inlet water shut-off
  3. Conserves energy
  4. Continuous duty
  5. Hermetically protected electronics for long life
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.

    Technical Specifications:
    1. Wetted Materials of Construction: Polypropylene, EPDM, 300 and 400 Series Stainless Steel
    2. Power Requirement: ESO 460: 24 VAC, 50/60 Hz, 150 mA, ESO DC-100: 24 VAC or VDC, 120 mA
    3. Inlet Pressure/Orifice: ESO 460: 45 psi max. with .093" dia. orifice, ESO 460: 100 psi max. with .062" dia. orifice, ESO DC-100: 100 psi max, with .093" dia. orifice only
    4. Fittings: 1/4" black inlet and 1/4" white outlet Jaco fittings as standard, 1/4" grey John Guest fittings optionally available at slight cost premium.

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