Material:  Brass
Size:  1"
Colour:  Brass
Warranty:  1 year
1" brass threaded Pump Valve Union.
Suitable for hot and cold domestic water systems. 
 
You need to use a pump valve union for 
any equipment that may require removal for future servicing, replacement, or inspection, such as pumps, filters, and valves. Placing unions on either side of these components allows for easy disconnection without having to cut or re-plumb the pipes, saving time and effort. 
Specific situations that require a union
Pump removal: Unions on both the inlet and outlet sides allow for quick removal of the entire pump for maintenance, winterization, or replacement.
Equipment servicing: Use unions on devices like sight glasses or flowmeters that require periodic cleaning or inspection.
Valve replacement: If a valve has a non-union threaded or solvent weld connection, adding unions on both sides makes it much easier to replace in the future.
Preventing freeze damage: In systems like irrigation or well pumps, unions can be used to easily disconnect and store equipment indoors during the winter, preventing freeze damage and bursting.
Adding components: Unions make it possible to add new components to a line without having to disassemble the entire system from one end.