Pond Pipe and Plumbing » Valves and Bulkheads » Knife valves
Knife valves

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.
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Ball Valves
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...(click on product image for more details)
Bulkheads
Quality Bulk Heads that allow for clean side wall or bottom penetration through liners, filter boxes, etc. Appropriate for creating a water-tight outlet on filter boxes or rigid ponds.
Clear Check Valves
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White Check Valve
PVC Swing Check Valves limit the flow of water to one direction. This prevents water from flowing backwards or backing up into your pump or filter. These are full flow "swing" type valves, with no springs...(click on product image for more details)