Pressure-actuated valves control the flow of the water to the nozzle(s).  During bypass mode, all of the water is directed back to the supply at nearly zero pressure.  This valve is typically used in applications in which frequent on/off action is required at the nozzle, such as; pressure washer, central cleaning station or hydro-excavation.  While slightly different design concepts are used, these unloaders typically will actuate at 5 to 20% above the operating pressure of the system. Flow ranges are from 0.5 GPM (2 l/min) to 625 GPM (2366 L/min) and pressure range is from 100 PSI to 50,750 PSI (7 to 3500 Bar).  In lower pressure applications, a manually adjusted spring is used to control the flow; however, pneumatic and electric controls can also be used.  Typical metal materials are forged brass, 303 stainless steel, 316 stainless steel and elastomers will be either Nitrile, Viton or Teflon.

Model FlowPressureInletDischargeBypass
22082 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22082-SS 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22082-SSS 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22082H 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22082H-SS 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22082H-SSS 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083-SS 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083-SSS 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083H 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083H-SS 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22083H-SSS 21.1 GPM
80 L/min
2320 PSI
160 bar
1/2" NPT 1/2" NPT 1/2" NPT
22085 10.5 GPM
40 L/min
5100 PSI
350 bar
3/8" MNPT 3/8" MNPT 1/2" FNPT
22090 53 GPM
200 L/min
2175 PSI
150 bar
1" FNPT 1" FNPT 1" FNPT
22090H 53 GPM
200 L/min
2175 PSI
150 bar
1" FNPT 1" FNPT 1" FNPT
22091 53 GPM
200 L/min
1015 PSI
70 bar
1" FNPT 1" FNPT 1" FNPT
22095-4000 21.1 GPM
80 L/min
5800 PSI
400 bar
1/2" FNPT 1/2" FNPT 1/2" FNPT
22095-5000 21.1 GPM
80 L/min
4100 PSI
283 bar
1/2" FNPT 1/2" FNPT 1/2" FNPT
22097-5000 21.1 GPM
80 L/min
2200 PSI
138 bar
1/2" FNPT 1/2" FNPT 1/2" FNPT
22106-51 21.1 GPM
80 L/min
4060 PSI
280 bar
1/2" BSP 1/2" BSP 1/2" BSP
22109 120 GPM
450 L/min
4350 PSI
300 bar
1-1/4" fBSP 1-1/4" fBSP 1-1/4" fBSP
22230 15.9 GPM
60 L/min
11,600 PSI
8000 bar
1/2" BSP 1/2" BSP 1/2" BSP
22760A 1.3-8 GPM
5-30 L/min
3045 PSI
210 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22760A-SS 1.3-8 GPM
5-30 L/min
3045 PSI
210 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22760APM 1.3-8 GPM
5-30 L/min
3045 PSI
210 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22760L 8 GPM
30 L/min
600 PSI
40 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22765A 5 GPM
19 L/min
4000 PSI
276 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22765A-SS 5 GPM
19 L/min
4000 PSI
276 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22765APM 5 GPM
19 L/min
4000 PSI
276 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22765APM-SS 5 GPM
19 L/min
4000 PSI
276 bar
3/8" FNPT 3/8" FNPT 1/4" FNPT
22860P 132 GPM
500 L/min
2320 PSI
160 bar
1-1/2" BSP 1-1/2" BSP 1-1/4" BSP
22910A 13 GPM
49.2 L/min
800 PSI
55 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22910A-01 13 GPM
49.2 L/min
800 PSI
55 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22911A 13 GPM
49.2 L/min
1400 PSI
100 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22911A-01 13 GPM
49.2 L/min
1400 PSI
100 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22912A 13 GPM
49.2 L/min
2400 PSI
165 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22912A-01 13 GPM
49.2 L/min
2400 PSI
165 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22913A 13 GPM
49.2 L/min
3000 PSI
200 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22913A-01 13 GPM
49.2 L/min
3000 PSI
200 bar
1/2" FNPT 1/2" FNPT 1/2" BSP
22947 60 GPM
225 L/min
1160 PSI
80 bar
1" FNPT 1" FNPT 1" BSP
22947H 60 GPM
225 L/min
1160 PSI
80 bar
1" FNPT 1" FNPT 1" BSP
22948 60 GPM
225 L/min
1600 PSI
110 bar
1" FNPT 1" FNPT 1" BSP
22948H 60 GPM
225 L/min
1600 PSI
110 bar
1" FNPT 1" FNPT 1" BSP
22949 32 GPM
120 L/min
3200 PSI
220 bar
1" FNPT 1" FNPT 1" BSP
22949H 32 GPM
120 L/min
3200 PSI
220 bar
1" FNPT 1" FNPT 1" BSP
22950 16 GPM
60 L/min
5800 PSI
400 bar
1" FNPT 1" FNPT 1" BSP
22950H 16 GPM
60 L/min
5800 PSI
400 bar
1" FNPT 1" FNPT 1" BSP
22971C 35.7 GPM
135 L/min
1740 PSI
120 bar
3/4" FNPT 3/4" FNPT 3/4" FNPT
22971C-01 35.7 GPM
135 L/min
1740 PSI
120 bar
3/4" FNPT 3/4" FNPT 3/4" FNPT
22971C-40 35.7 GPM
135 L/min
1740 PSI
120 bar
3/4" BSP 3/4" BSP 3/4" BSP
22971C-50 35.7 GPM
135 L/min
1740 PSI
120 bar
3/4" BSP 3/4" BSP 3/4" BSP
22971CH 35.7 GPM
135 L/min
1740 PSI
120 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22973C 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22973C-01 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22973C-40 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" BSP 3/4" BSP 3/4" BSP
22973C-50 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" BSP 3/4" BSP 3/4" BSP
22973CH 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22973CP 26.4 GPM
99 L/min
4060 PSI
280 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22974 35.7 GPM
135 L/min
580 PSI
40 bar
3/4" FNPT 3/4" FNPT 3/4" BSP
22980 26.4 GPM
99 L/min
8700 PSI
600 bar
3/4" BSP 1/2" BSP 1/2" BSP
22980-30 26.4 GPM
99 L/min
7250 PSI
500 bar
3/4" BSP 1/2" BSP 1/2" BSP
22980P 26.4 GPM
99 L/min
7250 PSI
500 bar
1/2" BSP 3/4" BSP 1/2" BSP
22981 66 GPM
250 L/min
2200 PSI
152 bar
1" BSP 1" BSP 3/4" BSP
22981P 66 GPM
250 L/min
2175 PSI
150 bar
1" BSP 1" BSP 3/4" BSP
22981-30 66 GPM
250 L/min
2175 PSI
150 bar
1" BSP 1" BSP 3/4" BSP
22982 52.8 GPM
200 L//min
3000 PSI
207 bar
1" BSP 1" BSP 3/4" BSP
22983 66 GPM
250 L/min
800 PSI
55 bar
1" BSP 1" BSP 3/4" BSP
22983-30 66 GPM
250 L/min
800 PSI
55 bar
1" BSP 1" BSP 3/4" BSP
23270 6.6 GPM
25 L/min
3000 PSI
207 bar
1/2" FNPT 3/8" MNPT Internal
23270H 6.6 GPM
25 L/min
3000 PSI
207 bar
1/2" FNPT 3/8" MNPT Internal
23275 6.6 GPM
25 L/min
2000 PSI
140 bar
1/2" FNPT 3/8" MNPT Internal
23275H 6.6 GPM
25 L/min
2000 PSI
140 bar
1/2" FNPT 3/8" MNPT Internal
23280 6.6 GPM
25 L/min
4000 PSI
275 bar
1/2" FNPT 3/8" MNPT Internal
23280H 6.6 GPM
25 L/min
4000 PSI
275 bar
1/2" FNPT 3/8" MNPT Internal
23285 6.6 GPM
25 L/min
2000 PSI
140 bar
1/2" FNPT 3/8" MNPT Internal
23285H 6.6 GPM
25 L/min
2000 PSI
140 bar
1/2" FNPT 3/8" MNPT Internal
23290 6.6 GPM
25 L/min
4000 PSI
275 bar
3/8" MNPT 3/8" MNPT Internal
23290H 6.6 GPM
25 L/min
4000 PSI
275 bar
3/8" MNPT 3/8" MNPT Internal
23295 6.6 GPM
25 L/min
2000 PSI
140 bar
3/8" MNPT 3/8" MNPT Internal
23295H 6.6 GPM
25 L/min
2000 PSI
140 bar
3/8" MNPT 3/8" MNPT Internal
25150 10.5 GPM
40 L/min
4000 PSI
275 bar
3/8" BSP 3/8" BSP 1/4" BSP
25151 10.5 GPM
40 L/min
3/8" BSP 3/8" BSP 1/4" BSP
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.