The INVALCO Diatroller is a combination liquid level controller and liquid valve. Closed, the force of the weighted rod on top exceeds the liquid pressure under the valve diaphragm. As the liquid level rises in the vessel, the increased head pressure raises the diaphragm, opening the valve. Gas from the top of pressure vessels is piped to the valve diaphragmʼs top side to equalize pressure.
Specifications
Body Material
Cast Iron, A-126
Body Cover Material
Cast Iron, A-126
End Connections
2” FNPT Threaded; 3”, 4” Class 125# FF Flanges.
Diaphragm Material
Nylon Reinforced Buna N Diaphragm
Maximum Differential Operating Pressure
125 psi
Temperature Limits
-20°F to 250°F
Plug Type
Replaceable, Buna N
Seat Type
Removable, Cast Iron
Other Wetted Parts
303 Stainless
FEATURES
Quick Change Trim - Can be changed without taking valve out of the line - reduced downtime. Replaceable Seat - Reduced overall cost. Weights Can Be Added - Meets all application demands. Soft Plug - Assures tight shut-off.
APPLICATIONS
The Series 442 Diatroller is perfect for an oil or water dump valve for treaters, free water knockouts, and gun barrels. It can also be used as a discharge valve for salt water disposal systems.
ADDITIONAL INFORMATION
General Notes: 1. Cv values are for fully open inner valve. 2. Part numbers applicable only when valve desired is exactly as described above. 3. To order specify Model Number, Part Number.
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