Low Pressure Shut Off Switch 1/8" Male NPT

Mouse over to view larger image.

Made in USA 

Part Number: LPS340-G
In Stock, Ready to Ship!
MSRP: $31.22
Price: $22.30 
12+ for $17.84 ea
48+ for $15.61 ea

How do we compare?
$26.49 $4.19 more ea @ IsopureWater
  as of Oct 08, 2017

Aquatec LPS340G Low Pressure Switch

Low Pressure Switch (LPS) installs on the inlet side of the booster pump and will shut-off the pump if the feed water is interrupted. Switch remains closed at 5 PSI or more, when pressure drops below 5 PSI, Switch will open and cut-off the power to the pump.  Requires wire harness # 21-028 (sold separately).

For Delivery Pump (Demand Pump) applications involving a pressurized bladder tank (ie RO Tank), a Low Pressure Switch is recommended to shut-off the Delivery Pump in the event the RO tank runs empty, thus preventing damage to the bladder and the tank from cavitating. When Delivery Pumps are used to pull water from an RO Bladder tank, the tank pre-charge is typically reduced to 1 psi to increase water storage volume.


Material:   Wetted parts are FDA Approved or NSF listed
Connection:   1/8" Male NPT thread
Pressure Switch Closed:   @ 5 PSI or more
Pressure Switch Opened:   1 - 5, Preset @ 2.3 PSI
Electrical:   125 - 250 VAC, 15A Max.
Power:  Compatible with 110V or 220V transformers
Sustained Operating Pressure:   50 PSI Max. 
Top Terminal:   Common Lead
Middle Terminal:   Normally Open Lead
Bottom Terminal:   Normally Closed Lead
Accessories:   Wire Harness # 21-028 to connect to pump and transformer

Customers who purchased this item also bought:

1/4" OD LLDPE Polyethylene Tubing
3/8" OD LLDPE Polyethylene Tubing
DMfit Female NPTF Connector - 1/4 Push-in x 1/8 NPTF
FWS # AFA0402
John Guest Female Adapter NPTF Polypro - 1/4 x 1/8 NPTF
FWS # PP450821W
Wire Harness Assembly; Two-Way Divider 11"
FWS # 21-127
Electronic Shut-off Solenoid Valve with QC fittings 24VAC
FWS # 1102X-062CE-B205AN

This item can be found in the following categories: