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Stainless steel dust cap for 3 inch female coupler, silver finish, locking arms visible

Value Brand

Value Brand 3" Female Coupler 316 SS Dust Cap

SKU CH-Z3W7-GDCAC

A 3-inch female coupler dust cap made from 316 stainless steel with a nitrile gasket, rated to 125 psi working pressure

  • 316 stainless steel body resists corrosion
  • 125 psi working pressure at 70 F handles demanding fluid transfer
  • Nitrile gasket provides reliable sealing performance
  • 3 inch female coupler fits standard socket connections
  • Locking arm included for secure attachment

3" Female Coupler for Industrial Plumbing

This 316 stainless steel dust cap fits a 3-inch female coupler socket. It suits maintenance teams and plant operators who need to seal unused connections in piping systems handling fluids at moderate pressure. The nitrile gasket provides a reliable seal for general-purpose applications.

Thermals Noise and Pressure Rating

The fitting carries a maximum working pressure of 125 psi at 70 °F. As a passive sealing component it generates no noise, draws no power and has no thermal characteristics of its own. System temperature and fluid media will dictate the actual operating envelope for the gasket material.

Build Quality and Daily Use

The 316 stainless steel body resists corrosion in harsh environments while the nitrile gasket withstands common oils and water-based fluids. An integrated locking arm secures the cap without tools, and the 2 13/16-inch overall length keeps the profile compact inside crowded pipe runs. The 3 5/8-inch socket inside diameter matches standard 3-inch coupler dimensions.

Highlights

  • 316 stainless steel body resists corrosion
  • 125 psi working pressure at 70 F handles demanding fluid transfer
  • Nitrile gasket provides reliable sealing performance
  • 3 inch female coupler fits standard socket connections
  • Locking arm included for secure attachment

Specifications

BrandZORO SELECT

Questions about this item

How do I install the 3" female coupler dust cap and what step do people often miss?

Slide the cap over the male adapter until the socket inside diameter of 3 5/8 in seats fully, then flip the included locking arm down to secure it; the step often missed is engaging that locking arm.

What maintenance or replacement will the nitrile gasket need later?

The nitrile gasket will harden or crack over time, especially after repeated exposure to pressure cycles up to 125 psi at 70 F, so plan to replace the gasket when sealing performance drops.

What limit appears first during sustained use at the rated pressure?

The 125 psi maximum working pressure at 70 F is the primary limit; sustained operation at or near this pressure accelerates gasket wear and can deform the 316 stainless steel socket.

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