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Honeywell L91 Proportional Pressuretrol® Controllers

Proportional Pressuretrol® Controllers
L91

Modulating pressure operating control for regulation of liquid or air and other non-corrosive gases.

• Use with steam, air, noncombustible gases, or other fluids noncorrosive to the brass or phos-bronze (300 psi models) bellows.
• Do NOT use with combustible mediums or any medium chemically harmful to phos-bronze bellows (10-300 psi models) or brass bellows (all other pressure range models).

Select a link under the "item" tab below to order.

Cat #Modulating OutputPressure Differential (psi)(psi)Operating Pressure Range (psi)Mounting
L91A1037Single potentiometer, 140 ohms0.5 psi25 psi0 to 15 psioptional surface mount through back of case
L91A1052Single potentiometer, 140 ohms5 psi225 psi5 to 150 psioptional surface mount through back of case
L91A1078Single potentiometer, 140 ohms12 psi325 psi10 to 300 psioptional surface mount through back of case
L91A1136Single potentiometer, 140 ohms12 psi325 psi10 to 300 psioptional surface mount through back of case
L91B1035Single potentiometer, 140 ohmsSingle potentiometer, 140 ohms1.5 to 12 psi25 psi0 to 15 psioptional surface mount through back of case
L91B1050Single potentiometer, 140 ohms5 to 23 psi225 psi5 to 150 psioptional surface mount through back of case
L91B1068Single potentiometer, 140 ohms28 to 110 psi325 psi10 to 300 psioptional surface mount through back of case
L91B1100Single potentiometer, 135 ohms5 to 23 psi225 psi5 to 150 psi1/4 in BSP-TR thread Mounting
L91B1118Single potentiometer, 140 ohms28 to 110 psi325 psi10 to 300 psi1/4 in BSP-TR thread Mounting
L91B1241Single potentiometer, 140 ohms12 to 48 psi325 psi10 to 300 psioptional surface mount through back of case
L91D1015Dual potentiometer, 140 ohms1.5 to 12 psi25 psi0 to 15 psioptional surface mount through back of case
L91D1031Dual potentiometer, 140 ohms11 to 52 psi225 psi5 to 150 psioptional surface mount through back of case
L91D1049Dual potentiometer, 140 ohms28 to 110 psi325 psi10 to 300 psioptional surface mount through back of case
Application Modulating pressure control for regulation of liquid, air, or other non-corrosive gases.
Pipe Connections, Main or High Pressure 1/4 in. NPT external thread
Electrical Connections Screw terminals
Sensor Element Brass bellows
Switch Operation Modulating
Temperature Range 32 F to 150 F (0 C to 66 C)


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