Features:

The L91B/D controllers sense pressure changes, thus actuating an internal potentiometer and changing the electric resistance of the potentiometer in proportion to those changes.
The controllers are suitable for direct control of the proportional motors of automatic burners inside high limit controllers or for steam heater equipment.

Slection Guide:

L91B200, L91B204, L91B208, L91D208, L91B212, L91D212, L91B216

Accessories:

Siphone loop (separate order): J-14026

Mounting bracket (3 M4 and 3 M5 screws attached) (separate order): 188050A