Family of Controllers

Safety Low-Water Cutoff (LW), Feed-Water (FW), Dual Function (FLW), and Tri-Function (FLLW) Controllers available in open pcb or plug-in modules.

Safety Low-Water Cutoff (LW)

UL353 rated as a limit control for boiler applications. Open PCB version saves space/cost and ideal many OEM liquid level control applications.

Tri-function Controller (FLLW)

UL353 rated as a limit control for boiler applications. Includes a Primary and Secondary Low-Water Cutoff and a Feed-Water Controller Function. Open PCB version saves space/cost and ideal for OEMs in the Restaurant/Cooking, Food Service Industries and many other OEM applications for liquid level controls that interface with probes, floats or switches.

Level Controls in Process

PDI manufacturing capabilities include full automation and "hybrid" assemblies that require through-hole components as well. We also support conformal coating, potting, encapsulation, and over-molding of electronics.

Level Controls in Process #2

PDI capabilities include high quality manufacturing for low to high volume requirements.

Level-Controls Plug-In Modules

Preparation of Plug-In Modules for the Level Controls line. PDI offers Industry Standard (and drop-in replaceable to others) Plug-In Modules for the Safety Low-Water Cutoff and Feed-Water Controls.

Safety Low-Water Cutoff-Module

Low-Water Limit Control Module assembly.

Safety Low-Water Cutoff-Module #2

Low-Water Limit Control Module assembly (label side view). The label shows the pin-outs for an 11-pin Industry standard Safety Low-Water Cutoff. PDI's LW can operate as a fit, form, functional drop-in replacement to other brands and offer additional safety features with high reliability.