These devices are activated by pressure (or lack of pressure) in a high-pressure system.  A piston is connected to a micro-switch that will either complete or interrupt an electrical circuit.  Common applications for them are for turning on/off burners in hot water pressure washers and sending a signal to start or stop an electric motor.  These devices are available in brass or stainless steel.

Model Inlet SizeActuation PressurePressureMaterial
25166 1/8" MBSP 210 PSi 4100 PSI
283 bar
Brass
25167 1/8" MBSP 360 PSI 4100 PSI
283 bar
Brass
25168 1/8" MBSP 580 PSI 4100 PSI
283 bar
Brass
25169 1/4" MBSP 210 PSi 4100 PSI
283 bar
Brass
25152 1/4" MBSP 360 PSI 4100 PSI
283 bar
Brass
25153 1/4" MBSP 580 PSI 4100 PSI
283 bar
Brass
25171 3/8" MBSP 210 PSi 4100 PSI
283 bar
Brass
25172 3/8" MBSP 360 PSI 4100 PSI
283 bar
Brass
25173 3/8" MBSP 580 PSI 4100 PSI
283 bar
Brass
23175A-4000 1/4" MNPT 580 PSI 3650 PSI
248 bar
Stainless Steel
23176A-4000 3/8" MBSP 360 PSI 3650 PSI
248 bar
Stainless Steel
23177-4000 3/8" MBSP 580 PSI 8700 PSI
600 bar
Stainless Steel
ACCESSORIES
Service & Repair

Giant provides service on each pump and accessory that we sell. Many basic repair procedures are covered in the Giant repair manual. For all other questions on service or repair needs please contact your local Giant distributor.