General Pump K3 series pressure regulators

General pump ZK3 flow sensitive unloader valve.

General pump ZK3 flow sensitive unloader valve.

  • All stainless and brass internal parts.
  • No external moving parts or springs.
  • Unique balance nozzle principle: Eliminates high pressurein all lines while unit is in bypass mode. Eliminates pressure peaks normally generated by conventionally designed unloaders.
  • Unique unbalanced piston design permits precise pressure adjustment.
  • Mounts in discharge line; flow-through design.
  • Convenient bypass location.
  • Minimum 5% bypass required for operation.
  • Dual gauge ports.
More Information
SKU General Pump K3 series pressure regulators
Inlet Threads 3/8" FPT
Bypass Threads 1/2" FPT
Grouped product items
Part# Description GPM PSI Inlet Outlet Bypass Picture Price
8.712-603.0 K3.0 UNLOADER 2.9 1500 3/8" FPT 3/8" MPT 1/2" FPT
$156.00
8.712-605.0 K3.1 UNLOADER, 2.9-4.2 GPM, 1450 PSI 4.2 1500 3/8" FPT 3/8" MPT 1/2" FPT
$135.00
8.712-607.0 K3.2 UNLOADER, 4.2-5.5 GPM, 1450 PSI 5.5 1500 3/8" FPT 3/8" MPT 1/2" FPT
$156.00
8.712-609.0 K3.0 UNLOADER, 5.0-6.0 GPM, 1450 PSI 6.5 1500 3/8" FPT 3/8" MPT 1/2" FPT
$153.00
8.712-608.0 K3.2 UNLOADER 5.5 1500 3/8" FPT 1/2" MPT 1/2" FPT
$156.00
8.712-604.0 K3.0 UNLOADER, 1/2", 2.1-2.9 GPM, 1450 PSI 2.9 1500 3/8" FPT 1/2" MPT 1/2" FPT
$156.00
8.712-606.0 K3.1 UNLOADER, 1/2", 3.0-4.2 GPM, 1450 PSI 4.2 1500 3/8" FPT 1/2" MPT 1/2" FPT
$156.00
8.712-610.0 K3.3 UNLOADER, 1/2", 5.0-6.0 GPM/1450 PSI 6.5 1500 3/8" FPT 1/2" MPT 1/2" FPT
$115.00