OCV 3331, a one-way altitude valve, controls the level in the tank without the use of floats or probes in the tank itself. It shall be a one-way flow (single-acting) type, designed to open fully to fill the tank and close completely when the predetermined high level is reached. Sensing of the altitude pilot shall be by means of a field-installed sense line between the pilot and the base of the tank. The altitude valve shall be equipped with a visual indicator assembly.
This valve is applicable anywhere it is necessary to automatically maintain the water level in elevated storage tanks or reservoirs. Some examples include: municipal water, rural water, industrial plants.
Size Unit
Size range
Pressure rating
Working temperature
End connection type
Threaded
Flanged
Grooved
Materials of construction
Body and Cover
Ductile Iron
Stainless Steel
Cast Steel
Aluminum
Internal Parts
Stainless Steel
Trim Material
Stainless Steel
Low-Lead Bronze/Brass
Copper
Diaphragm
EPDM
Buna-N
Elastomers
EPDM
Buna-N
* Other optional materials available upon request