Ball valve kfa² 3/4" female–male (700-221-20) for pipe connection

The kfa² 3/4" female–male ball valve is a compact shut-off valve engineered for fluid control in water and heating systems. It features one internal (female) and one external (male) 3/4" threaded connection, enabling straightforward integration with threaded pipe fittings. The valve provides fast quarter-turn operation for reliable on/off isolation and is suitable for repair, replacement or new installations where a simple, durable shut-off solution is required.

Advantages

This ball valve offers a compact design that saves installation space while maintaining full bore flow characteristics. The quarter-turn handle ensures quick operation and clear open/closed indication, and threaded female–male connections make it compatible with common 3/4" piping. Constructed for use in water and heating systems, the valve delivers straightforward maintenance and long service life when installed according to system requirements.

Suitable for

• Domestic water supply shut-off and isolation
• Heating system branch isolation and maintenance
• Repair or replacement of existing 3/4" threaded pipe connections
• New installations requiring a compact threaded shut-off valve

Key specifications

• Connection type: one female (internal) and one male (external) threaded connection for 3/4" piping
• Operation: quarter-turn ball valve with manual handle
• Intended media: water and heating fluids
• Application: shut-off and isolation in residential and light-commercial systems
• Design: compact inline body suitable for limited-space installations

How to use

Install the valve inline between corresponding 3/4" threaded pipe fittings, ensuring threads are clean and properly sealed with suitable thread sealant or tape. Tighten connections to recommended torque for the pipe material to avoid leaks and mechanical stress. Use the handle to turn the ball valve 90° for full open or full closed positions; intermediate positions are not recommended for prolonged flow regulation. Follow local plumbing standards and turn off system pressure before installation or servicing.

Usage recommendations

For reliable performance, select compatible pipe materials and sealing methods, avoid overtightening threaded connections, and perform periodic inspections for leaks and wear. When used in heating systems, ensure the valve materials are suitable for the system’s maximum temperature and pressure. Replace the valve if threaded connections or the sealing surfaces show signs of damage.