K7 Flow Actuated Unloader
- 3,500PSI Max
- 165°F
- 3/8″ FPT Inlet, 3/8″ MPT Outlet, 3/8″ FPT Bypass
- Features all stainless and brass internal parts
- Design reduces sensitivity to entrapped air
- No external moving parts or springs
- Eliminates high pressure in all lines while the unit is in bypass mode
- Bypass restrictor eliminates pressure peaks during bypass
- Unique balanced piston design permits precise pressure adjustments
- Simple design for easy maintenance and service
—Choose the proper flow rating from the drop-down list—
ZK7 Flow Sensitive Unloader | |||
|---|---|---|---|
| Part # | ZK71 | ZK72 | ZK73 |
| Max Volume GPM | 2.9-4.2 | 4.2-6.6 | 6.6-10.8 |
| Max Discharge Pressure | 3,500 PSI | ||
| Max Temp | 165° F | ||
| Port Size | Inlet – 3/8 BSP-F, Bypass – 3/8 BSP-M, Outlet – 3/8 BSP-F | ||
| Dimensions | 4.5″ x 3.75″ x 3.5″ | ||
| Weight | 4.5 lbs. | ||






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