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Bronze relief valve with test lever, 3/4 NPT connections

Dayton

Dayton 4KGZ7 Relief Valve 6 GPM 3/4 NPT

SKU CH-ZWXH-8DRF0 MPN 4KGZ7

A bronze relief valve with a factory-set 600 psi pressure and 304 stainless steel seat and spring protects positive displacement pumps from over-pressure damage

  • TypeDrain Components
  • Bronze body resists corrosion in harsh plumbing systems
  • Factory-set 600 psi protects positive displacement pumps from over-pressure
  • 304 stainless steel seat and spring maintain sealing integrity
  • Test lever enables manual verification without tools
  • Compact 4 1/2 in height fits tight installation spaces

Pressure Relief Valve

The Dayton 4KGZ7 is a bronze relief valve designed to protect positive displacement pumps from over-pressure damage. It features 3/4 NPT inlet and outlet connections and a factory set pressure of 600 psi. A test lever is included for manual operation checks.

Suitable Applications

This valve suits installers protecting positive displacement pumps in systems requiring a 600 psi relief setting. It is not for buyers needing adjustable pressure settings or different port sizes. Buyers requiring certifications to specific standards should verify suitability as none are listed.

Factory Set Pressure

The single specification that decides fit is the factory set pressure of 600 psi. The valve opens at this fixed pressure to prevent pump damage. Confirm your system requires this exact relief pressure before purchase.

Highlights

  • Bronze body resists corrosion in harsh plumbing systems
  • Factory-set 600 psi protects positive displacement pumps from over-pressure
  • 304 stainless steel seat and spring maintain sealing integrity
  • Test lever enables manual verification without tools
  • Compact 4 1/2 in height fits tight installation spaces

Specifications

TypeDrain Components
BrandDayton
Model4KGZ7

Questions about this item

Will this 6 GPM, 3/4 NPT relief valve protect my existing positive-displacement pump from over-pressure?

Yes, the valve is factory set at 600 psi and designed specifically to prevent damage to positive-displacement pumps, so it will open at that pressure and relieve excess flow.

How can I verify the 4KGZ7 is operating correctly once installed?

Lift the included test lever; the valve should discharge water at the 600 psi set point, confirming the bronze body, 304 stainless steel seat and spring are functioning.

Does the box contain the 3/4 NPT inlet and outlet connections or must I buy fittings separately?

The valve itself has 3/4 NPT x 3/4 NPT ends built into the bronze body; no separate connectors are included, so you will need to supply matching pipe or hose fittings.

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