Plumbing » Valves & Unions

Ball Valves are quarter-turn, straight through flow valves that have a round closure element with matching rounded seats that permit uniform sealing stress.

Ball valves are used in situations where tight shut-off is required. The type of seat can vary with the valve pressure rating and materials of construction.

This may be used as a disconnect to allow access to your pump, filter, or reservoir to allow for easy maintenance.

Knife Valves allow you to tightly close off the water lines of the connected piping to allow for maintenance on joined mechanisms such as pumps or filters without shutting down your pond.

Gate valves (also known as knife valves or slide valves) are linear motion valves in which a flat closure element slides into the flow stream to provide shut-off. Gate valves and knife valves are designed to minimize pressure drop across the valve in the fully opened position and stop the flow of fluid completely.

The direction of fluid flow does not change, and the diameter through which the process fluid passes is essentially equal to that of the pipe. Hence, they tend to have minimal pressure drop when opened fully.

Swing Check Valves are mechanical valves that permit water to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. Fluid flow in the desired direction opens the valve, while backflow forces the valve closed.

These install near your skimmer or filter, so if the pump is turned off, it will not back-siphon and dry up.

Also used to help with priming an external pump. Used on the intake to keep water in the pipe.

In general, True Union Swing Check Valves offer many advantages when contrasted with other valve types. They provide superior ease of operation and can maintain and regulate high volume, high pressure and high temperature flow.

Most true union swing check valves offer rugged construction providing for a long service life, and a comparably low cost.

Additionally, the design of the regulating element allows the valve to function without the complications of side loads, typical of butterfly or globe valves, and the valve design permits inspection and repair of seats and seals without removing the valves’ body from the line.