Valves are devices that control flow of liquids or gases. ... Pumps are devices used to raise, compress or transfer fluids or gases. Pumps can be hydraulic pumps, pneumatic pumps or electric pumps and include a large variety of types such as centrifugal pumps, diaphragm pumps and vacuum pumps.

Pumps and valves which are used in water lines often run at very high pressure and in areas where there is high risk of corrosion. Big Bolt Nut's extensive research has enabled us to develop bolting's which are most suited for joints in pums and valves in the water pipeline and industry.