SPECIFICATIONS
Part Number
Maximum Volume
Maximum Discharge
Pressure
Max. Temperature
Port Sizes: Inlet
Bypass
Outlet
Dimensions
Weight
ZK7.0
2.1-2.9 GPM
0-3000 PSI
165°F
3/8-19 BSPP - F
3/8-19 BSPP - F
3/8-19 BSPP - M
7.50 x 3.75 x 3.50 in.
4.5 lb.
ZK7.1
2.9-4.2 GPM
0-3000 PSI
165°F
3/8-19 BSPP - F
3/8-19 BSPP - F
3/8-19 BSPP - M
7.50 x 3.75 x 3.50 in.
4.5 lb.
ZK7.2
4.2-6.6 GPM
0-3000 PSI
165°F
3/8-19 BSPP - F
3/8-19 BSPP - F
3/8-19 BSPP - M
7.50 x 3.75 x 3.50 in.
4.5 lb.
ZK7.3
6.6-10.8 GPM
0-3000 PSI
165°F
3/8-19 BSPP - F
3/8-19 BSPP - F
3/8-19 BSPP - M
7.50 x 3.75 x 3.50 in.
4.5 lb.
K7 UNLOADER VALVE
K7.0
2.1 - 2.9 GPM @ 0 - 3000 PSI
K7.1
2.9 - 4.2 GPM @ 0 - 3000 PSI
K7.2
4.2 - 6.6 GPM @ 0 - 3000 PSI
K7.3
6.6 - 10.8 GPM @ 0 - 3000 PSI
Features all stainless and brass internal parts.
New design reduces sensitivity to entrapped air.
No external moving parts or springs.
Unique barb and flow balance design provides
gradual pressure build-up when system is closed.
Eliminates high pressure in all lines while unit is in
bypass mode.
Bypass restrictor eliminates pressure peaks during
bypass.
Unique balanced piston design permits precise
pressure adjustments.
Minimum 5% bypass required for operation.
Simple design for easy maintenance and service.
Adjusting knob is optional.
General Pump recommends using a safety relief device in conjunction with
this unloader valve when installed on a positive displacement pump. General
Pump is not liable and assumes no responsibility for this valve when used in
a customer’s high pressure system.
K7
GENERAL PUMP
A member of the Interpump Group
