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Pressuretrols
Includes pressuretrol, vaporstat and vacuumstat models: Series L404, L604 and L91B. Provides operating control limit protection for steam and hot water boilers. The "proportional" models modulate the operating pressure to regulate liquid, air or other non-combustible gases.
Honeywell Pressuretrol Documentation
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Honeywell Pressuretrol, L404F1060, Steam pressure control
SKU: HN1112R
Pressuretrol controller, 2-15 psi, adjustable 2-6 lb differential , spdt switch can make or break on pressure rise 1/4"NPT female connection to siphon loop. Learn More$153.46 -
Honeywell Pressuretrol, L404F1078, Steam pressure control
SKU: HN1112S
Pressuretrol controller, 5-50 psi, adjustable 6-14 lb differential , spdt switch can make or break on pressure rise 1/4"NPT female connection to siphon loop. Learn More$164.08 -
Honeywell Pressuretrol, L404F1094, Steam pressure control
SKU: HN1112T
Pressuretrol controller, 20-300 psi, adjustable 20-50 lb differential , spdt switch can make or break on pressure rise 1/4"NPT female connection to siphon loop. Learn More$198.12 -
Honeywell Pressuretrol, L404F1102, Steam pressure control
SKU: HN1112U
Pressuretrol controller, 10-150 psi, adjustable 10-22 lb differential , spdt switch can make or break on pressure rise 1/4"NPT female connection to siphon loop. Learn More$171.05 -
Honeywell Pressuretrol, L404F1375, Steam pressure control
SKU: HN1112E
Pressuretrol controller, 5-50 psi, adjustable 4-12lb differential, microswitch makes on pressure rise 1/4"NPT female connection to siphon loop. Learn More$159.82 -
Honeywell Pressuretrol, L404F1383, Steam pressure control
SKU: HN1110H
Pressuretrol controller, 10-150 psi, adjustable 10-22lb differential,microswitch makes on pressure rise 1/4"NPT female connection to siphon loop. Learn More$159.82 -
Honeywell Pressuretrol, L404F1391, Steam pressure control
SKU: HN1112G
Pressuretrol controller, 20-300 psi, adjustable 15-40lb differential, microswitch makes on pressure rise 1/4"NPT female connection to siphon loop. Learn More$191.34 -
Honeywell Pressuretrol, L404F1409, Steam pressure control
SKU: HN1112D
Pressuretrol controller, 2-15 psi, adjustable 2-6lb differential,microswitch makes on pressure rise 1/4"NPT female connection to siphon loop. Learn More$146.49 -
Honeywell Pressuretrol, L404T1055, Fuel Oil pressure control
SKU: HN1113A
Oil Pressuretrol limit controller, 5-50psi, adjustable 4-8lb differential, microswitch makes on pressure fall 1/4"NPT female connection to siphon loop. For high pressure safety cut-off. Learn More$258.71 -
Honeywell Pressuretrol, L404T1063, Fuel Oil pressure control
SKU: HN1113B
Oil Pressuretrol limit controller, 10-150psi, adjustable 8-16lb differential, microswitch makes on pressure fall 1/4"NPT female connection to siphon loop. For high pressure safety cut-off. Learn More$286.40
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