Specializing in Air Release, Check, Butterfly & Plug Valves, Crispin Valve has served the international valve industry since 1905. Our products are used in almost every application where water or liquid is moved from one place to another—from pipeworks in the municipal water industry to a wide range of applications across a variety of markets. We look forward to putting over a century of experience to work on your next valve project.


Crispin - Model N Series - Negative Pressure Valve

Negative Pressure Air Valves are applied where the interest is only in venting air to the atmosphere, and not permitting air to re-enter the system under vacuum.

Crispin - Model AL/PL Series - Dual Air Valves

Dual Air Valves are offered with a Pressure Air Valve piped out of the side of an Air & Vacuum Valve, providing a variety of combinations to meet specific air release requirements.



WWETT - Water & Wastewater Equipment, Treatment & Transport Show

Company details

Business Type:

Industry Type:
Water and Wastewater

Market Focus:
Globally (various continents)

Office & Distributor locations:


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