Nibco MD909A6 True Union Ball Valve 1/2 in Full Port

Product Description

The NIBCO MD909A6 is a true union manual ball valve designed for chemical and high-purity fluid handling in industrial piping systems. Constructed from polyvinylidene fluoride (PVDF), this 1/2 inch full-port valve delivers a straight-through flow path that minimizes pressure drop across the valve. It is rated for a maximum working pressure of 150 psi and a maximum working temperature of 280 degrees F. The wedge-style handle provides positive open and close indication. Licensed plumbers and pipefitters install this valve where corrosion resistance and thermal stability are required.

This valve is suited for residential and commercial chemical process lines, water treatment systems, and industrial fluid distribution where corrosive media or elevated temperatures are present. The solvent x solvent end connections make it compatible with Schedule 80 CPVC and PVDF piping systems. The true union design allows the valve body to be removed from the line without cutting pipe, which simplifies maintenance and inline inspection. It is a single-piece valve body configuration sold individually.

Key Features

• PVDF body offers excellent resistance to corrosive chemicals and high operating temperatures
• Full-port design maintains full pipe bore for unrestricted flow
• True union construction allows in-line removal without disturbing the pipe connections
• Rated to 150 psi maximum working pressure
• Rated to 280 degrees F maximum working temperature
• Wedge handle provides clear open and closed position indication
• Schedule 80 compatible with solvent x solvent end connections

Compatibility

Designed as an OEM-style replacement or new-installation valve for Schedule 80 PVDF and compatible thermoplastic piping systems using solvent-weld connections.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter familiar with thermoplastic solvent-welding procedures. Shut off and depressurize the piping system completely before cutting into the line or removing an existing valve. Follow the solvent cement and primer manufacturer instructions for cure time before returning the system to pressure. Consult applicable plumbing codes such as IPC for approved applications and pressure ratings in your jurisdiction.