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ZK7.2 – GP K7 Flow Sensitive Unloader Valve 4.2-6.6 GPM @ 3500 PSI

$103.95

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Description

ZK7.2 – GP K7 Flow Sensitive Unloader Valve 4.2-6.6 GPM @ 3500 PSI

ZK7.2 GP K7 Flow Sensitive Unloader Valve 4.2-6.6 GPM @ 3500 PSI by General Pump. Eliminates high pressure in all lines while unit is in bypass mode. Maximun PSI 3500, Maximun Temp 165 deg F., 3/8 in. FNPT Inlet, 3/8″ MNPT Outlet, 3/8 in. FNPT By-Pass. Choose model with orifice size carefully due to the fact that these flow sensitive unloaders will not work properly with flow rates outside of their flow range. Available orifice sizes: ZK71 3.0 – 4.2 GPM, ZK72 4.2 – 6.6 GPM, ZK73 6.6 – 10.8 GPM.

Flow sensitive unloader valves do not work well with high pressure hose lengths in excess of 100′.

Features:

  • Features all stainless and brass internal parts.
  • New design reduces sensitivity to entrapped air.
  • No external moving parts or springs.
  • 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.
  • Simple design for easy maintenance and service.

Specifications:

  • Maximum Volume Range: 4.2-6.6 GPM
  • Maximum Pressure: 3500 PSI
  • Maximum Temperature: 165 Deg. F.
  • Inlet: 3/8 NPT-F
  • Outlet: 3/8 NPT-M
  • Bypass: 3/8 NPT-F
  • Overall Dimension: 7.5 x 3.75 x 3.5
  • Material: Brass, Stainless Steel, Buna-N
  • Weight: 4.5 Lbs.

INSTALLATION:

Select an unloader appropriate for the pressure and flow of your system (see specification chart). This unloading valve is a flow-through design and should be mounted on the discharge line of the pump in any position (horizontal or vertical) which allows easy access to the adjusting bolt. A pressure gauge should be installed on either side of the body of the unloader to accurately read pressure during adjustment. Minumum 5% bypass is required for proper operation. Flow sensitive unloader valve.

SKU: ZK72

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Prop 65 Warning!

This product can expose you to chemicals which are known to the State of California to cause cancer.

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