Ball valve straight half-union ARCO VA30 1/2" female – 3/4" male, lever, stainless steel

Straight ball valve ARCO VA30 with half-union connections provides a compact on/off solution for plumbing and heating installations where mixed thread types are required. The model features a female 1/2" inlet and a male 3/4" outlet, a lever handle for manual operation, and stainless steel construction for corrosion resistance and long service life. It is intended for use in residential and light commercial piping systems to control water flow reliably and with minimal pressure drop.

Advantages

The stainless steel body and internal components offer good resistance to corrosion, making the valve suitable for potable water and heating circuits. The half-union design simplifies installation and replacement by allowing one side to be disconnected without removing the entire valve. The lever handle provides clear visual indication of open or closed position and enables quick manual actuation. Its straight-through ball design ensures low hydraulic resistance and reliable shut-off performance.

Suitable for

• Domestic water supply lines
• Central heating systems and radiators
• Tank and boiler connections where mixed threads are present
• Plumbing repair and retrofit applications

Key specifications

• Connection types: female 1/2" (inlet) to male 3/4" (outlet)
• Configuration: straight ball valve with half-union connection
• Operation: manual lever handle
• Material: stainless steel body and internal ball components
• Function: on/off shut-off valve with low pressure drop
• Typical installation orientation: inline piping

How to use

Install the valve in-line between compatible threaded fittings, ensuring proper sealing on the female and male thread connections. Use appropriate pipe sealant or PTFE tape on the male threads as required by the installation practice. Operate the lever handle 90° to move between fully open and fully closed positions; the lever aligned with the flow indicates open, perpendicular indicates closed. Regularly check for leaks after installation and after thermal cycling, and verify smooth operation of the lever before commissioning the system.

Usage recommendations

For longer service life, avoid excessive torque when tightening threaded connections and ensure the valve is used within the operating temperature and pressure limits of stainless steel plumbing fittings. Periodic inspection for signs of corrosion or wear and occasional cycling of the valve can help maintain reliable operation.