Ball valve Valvex ONYX 3" female-to-female water model 9007920

The Valvex ONYX 3" female-to-female water ball valve (model 9007920) is a threaded inline shut-off valve designed for controlling water flow in piping systems. It uses a spherical ball closure that rotates to open or close the flow path and features 3-inch female threaded connections to join with matching male-threaded pipes or fittings. The valve is suitable for applications where straightforward open/close operation and a tight shutoff are required in residential, commercial or light industrial water installations.

Advantages

The ball mechanism provides a quick quarter-turn operation and reliable sealing when closed. Threaded female-to-female connections simplify installation in systems with compatible male-threaded components and allow straightforward replacement without soldering or flanging. The valve body and sealing materials are selected to withstand typical water system conditions, offering durability and low maintenance for routine use.

Suitable for

• Shut-off and isolation in cold and hot water distribution lines
• Inline service valves in residential plumbing systems
• Commercial water supply lines requiring threaded connections
• Maintenance bypasses and sectional isolation in mechanical rooms

Key specifications

• Valve type: ball valve with quarter-turn operation
• Connection type: 3" female threaded at both ends
• Media: water (suitable for potable and non-potable systems depending on installation materials)
• Operation: manual lever or handle actuation (quarter-turn)
• Typical applications: residential, commercial, and light industrial water systems

How to use

Install the valve between two male-threaded pipe ends or use appropriate adapter fittings to match the piping system. Ensure threads are clean and apply an appropriate thread sealant or tape compatible with potable water if required. Tighten the valve to a secure, leak-free fit using suitable tools while avoiding excessive torque that could damage threads. Operate the valve by turning the handle a quarter turn to align the ball bore with the pipe for open flow, and turn back a quarter turn to close. Verify tightness and proper operation after installation and before placing the system back into service.

Usage recommendations

Use thread sealants compatible with the valve materials and the water system. Avoid exposing the valve to pressures or temperatures beyond the limits of the installation materials and piping. Periodically cycle the valve to prevent buildup and check for leaks; replace sealing elements if leakage or stiffness occurs. For applications requiring certified potable-water components, confirm material suitability with local regulations and project specifications prior to installation.