McDonnell & Miller Float-Actuated-Liquid Level Controls

McDonnell & Miller Series PFC Liquid Level Controls

Series PFC is ideal for the actuation of pneumatic valves or relays in heating, air conditioning, and process systems in hazardous or non-hazardous locations.

Features:

• Provides an air pressure signal proportional to the liquid level
• Available as Direct Acting or Reverse Acting
• A float-operated armature senses the liquid level
• Switch mechanism is completely sealed from the liquid
• Two gauges to display the supply and output pressures
• Alternate air connection tappings for greater flexibility in piping
• Operating range: 1-2" (25-51mm)
• Air pressure
• Supply 20 psi (1.4 kg/cm²)
• Output 3-15 psi (.2-1 kg/cm²)
• Maximum water temperature: 406°F (208°C)
• Maximum pressure: 250 psig (17.6 kg/cm²)

McDonnell & Miller Series 27-W Valves

The float-operated Series 27-W valve provides liquid-level control for commercial and industrial open tank applications.

Features:

• Materials of construction
• Brass
• Monel valve seat, EPDM disc
• Maximum pressure: 35 psi (2.5 kg/cm²)
• Maximum supply pressure: 100 psi (7 kg/cm²)
• Minimum liquid temperature: 40°F (4.4°C)
• Maximum liquid temperature: 212°F (100°C)