Ball valve ARCO SENA VA30 3/4" female-female with air drain, model 752104

ARCO SENA VA30 ball valve model 752104 is a 3/4" female-to-female full-bore shut-off valve with an integrated air drain. Designed for manual operation, it enables straightforward isolation of liquid and gas lines while allowing trapped air to be removed via the built-in air vent. The valve body and ball geometry provide a smooth flow path and reliable sealing for plumbing, heating and light industrial piping systems where dependable shut-off and air evacuation are needed.

Advantages

The ARCO SENA VA30 offers full-bore flow for low pressure loss and unrestricted passage of media. Manual quarter-turn operation gives fast open/close action and clear visual position of the ball. The integrated air drain facilitates simple venting of trapped air without additional fittings, reducing installation complexity. Constructed for reliable sealing, the valve is suitable for repeated use in routine isolation and maintenance tasks.

Suitable for

• Residential and commercial plumbing systems
• Heating and radiator circuits requiring air removal
• Service isolation in light industrial piping
• Water, non-aggressive liquids and gaseous media where manual shut-off is acceptable

Key specifications

• Connection type: 3/4" female — female threaded ends
• Valve type: full-bore ball valve with integrated air drain
• Operation: manual, quarter-turn handle
• Function: shut-off with venting capability
• Typical media: water, non-aggressive liquids and gases
• Application areas: plumbing, heating, light industrial piping

How to use

Install the valve into the pipeline using compatible threaded fittings and appropriate sealing tape or joint compound on the threads. Ensure the valve is oriented so the air drain is accessible for venting operations. To vent trapped air, partially open the integrated drain according to site procedures until air is released and liquid appears, then close the drain. Use the quarter-turn handle to open or close the main ball: a 90° turn moves the valve between full open and fully closed positions. Follow local regulations and system pressure ratings during installation and operation.

Usage recommendations

For best performance, use the valve within the temperature and pressure limits appropriate for the system media, perform routine checks for tightness and correct venting, and protect the valve from corrosive environments. When installing in heating circuits, vent air after filling and during commissioning to maintain system efficiency.