The 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 diaphragm's top side to equalize pressure.

Features and Benefits

• 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.

Standard 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

Dimensions

Inches (mm)

Note: Dimensions -- Inches to the nearest tenth (millimeters to the nearest whole mm), each independently dimensioned from respective engineering drawings.