Gate valve Valvex VIKING model M83, ductile white cast iron body, cast-iron handle, size 1½"

Valvex VIKING M83 is a through gate valve with a ductile white cast iron body and a cast-iron handle, designed for manual shut-off in water and heating installations. The straight (through) design ensures minimal flow resistance when the valve is open, while the cast components provide mechanical strength and long service life in residential and light commercial piping systems. Size 1½" makes it suitable for medium‑diameter supply and return lines in building plumbing and heating circuits.

Advantages

The ductile white cast iron body combines improved tensile strength and impact resistance compared with traditional grey cast iron, which enhances durability under typical operating loads. A cast-iron handle offers a robust, straightforward means of manual operation and reliable torque transmission for opening and closing. The straight gate design minimizes pressure drop in the open position and provides a positive shut-off when fully closed. The valve’s construction is suitable for installation in water and heating systems without requiring electrical power or complex control systems.

Suitable for

• Residential water supply and distribution lines
• Domestic and small commercial heating circuits
• Shut-off points in service risers and branch lines
• Replacement of worn or corroded shut-off valves in existing plumbing

Key specifications

• Type: through (straight) gate valve
• Body material: ductile white cast iron
• Handle material: cast iron
• Connection size: 1½" (nominal diameter)
• Operation: manual rotary handle
• Application: water and heating systems

How to use

Install the valve inline in the piping with appropriate flanges or threaded fittings compatible with the 1½" connection size and the system’s material. Ensure correct flow direction if required by the installation, support adjacent piping to avoid stress on the valve body, and tighten connections to the manufacturer’s recommended torque. To operate, rotate the cast-iron handle clockwise to close and counterclockwise to open until the gate seats or fully retracts; do not apply excessive force beyond normal manual torque. Perform pressure testing and system flushing after installation according to local codes and standards.

Usage recommendations

Use the valve for shut-off duties rather than frequent throttling; gate valves are optimized for full open or full closed positions. Periodically inspect the valve for signs of corrosion or wear on the handle and body, exercise the valve occasionally to prevent seizing, and follow local regulations for potable water or heating system installations.