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Catalog > Murphy by Enovation Controls > Level > Level Switches: Engine Liquid, Bilge & Tank Level > 


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• Level Maintainers: Lube
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• Level Switches: Engine Liquid, Bilge & Tank Level
• L150 (15700135): Liquid Level Swichgage®
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• EL150K1 Liquid Level Swichgage® (15700116)
• EL150K1-BC (15700118) Liquid Level Swichgage®
• EL150EX Liquid Level Swichgage® (15700121)
• EL150EX-D (15700124): Liquid Level Swichgage®
• BLS1 (15000587): Bilge Level Switch System
• BLSK1 (15700193): Bilge Level Switch System
• DF755 (15700001): Hydrostatic Head Level Switch
• DF757 (15700037): Hydrostatic Head Level Switch
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DF755 (15700001): Hydrostatic Head Level Switch
DF755(240).jpg

DF755: Hydrostatic Head Level Switch (15700001)

The DF755 Hydrostatic Head Level Switch is a diaphragm operated "hydrostatic head pressure" level switch. A pressure sensitive diaphragm operates a snap-switch that can be wired directly to electric pilot circuits to control pumps at predetermined levels.
The DF755 is designed to start and stop electric driven pump(s) to maintain tank levels. It is also applicable to engine driven pumps.
The nitrile sensing diaphragm is impervious to most liquids and is sensitive enough to control levels with 1/4" (6 mm) repeatability.
Materials include aluminum body, nylon bottom plate and a special alloy leaf snap-switch as standard.
The DF755 is suitable for atmospheric tanks in a non-hazardous area. The SPDT snap-switch for this model is preset for a 4-inch differential in liquid level.

Typical applications include saltwater disposal systems, cooling towers, crude oil tanks, waterflood systems, diesel day tanks and sumps.
SPDT snap switch is rated 5A @ 125, 250 or 480 VAC; 1/2A @ 125 VDC; 1/4A @ 250 VDC.
Maximum pressure rating: 25 psi (172kPa [1.72 bar]).


Literature:
 

  1. Sales Bulletin
  2. Installation Instructions

 

MurCal is an Authorized Distributor of FW Murphy products.
MurCal provides experienced application and product support, before and after the sale.
 

For California customers: Prop 65 WARNING: This product may have been manufactured with or uses components that can expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.p65warnings.ca.gov.

Price: $210.49

 
 
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