Check valve kfa² 3/4" cast iron model 192-010-20

The kfa² check valve model 192-010-20 with a 3/4" connection is a cast iron non-return valve designed to prevent reverse flow in piping systems. Intended for use with water and similar non-aggressive fluids, the valve features a robust cast iron body suitable for residential and light commercial installations. Its straightforward function ensures directional flow, helping to protect pumps, boilers and other equipment from backflow-related damage.

Advantages

The cast iron construction provides mechanical strength and resistance to wear in typical water system conditions. The simple non-return mechanism requires minimal maintenance and operates automatically with flow changes. A 3/4" threaded connection allows installation into standard pipework sizes commonly used in domestic and small commercial systems. The valve's design focuses on reliable prevention of backflow while remaining compact and easy to integrate into existing piping.

Suitable for

• Residential water supply lines
• Boiler return lines and pump protection
• Light commercial plumbing systems
• Cold water circulation and similar non-corrosive fluids

Key specifications

• Material: cast iron body
• Connection size: 3/4" threaded
• Function: non-return (check) valve to prevent backflow
• Fluid compatibility: water and similar non-aggressive fluids
• Application environment: residential and light commercial plumbing

How to use

Install the check valve in the piping with the arrow or flow direction aligned with the intended forward flow. Ensure pipe threads are clean and use appropriate sealing tape or compound on the threaded joints to prevent leaks. Tighten to recommended torque for cast iron fittings to avoid damage. The valve operates automatically: when forward flow occurs the internal mechanism opens, and when flow stops or reverses it closes to prevent backflow. Periodic inspection for leaks and deposits is advisable, particularly in systems with poor water quality.

Usage recommendations

Do not use this cast iron check valve with aggressive chemicals, highly chlorinated water, or fluids that may cause corrosion. For outdoor or damp locations consider additional corrosion protection. If used in hot-water or high-temperature systems, verify compatibility with system temperature and pressure before installation. Follow local plumbing codes and install isolation valves or access points for maintenance where required.