Pressure Controllers

Product Details:
White Rodgers 1947 antique pressure controller. This is a complete low side (25 inches to 50 psi w/3-35 lbs diff) / high side (125-250 psi w/40 lbs diff.) refrigeration set for freon, Methyl Chloride or Sulphur Dioxide. Each control has high and low dials for easy pressure setting. 1/4" flare fittings. A real relic. These controls are new in the box, which is dated 7-25-47.

Product Details:
We saved the newest for last.  This dual pressure limit switch is of modern origin.  Each switch has an adjustable  range of 0-16 psi and will handle over pressure  to 400 psi. Electrically, each has a SPDT 10 amp switch. As shipped, the switches  are piped together externally with 1/4" copper tubing and high-low DPDT  switching is achieved.

Product Details:
Penn pressure fan cycling control. 100-400 psi range. 35-200 psi differential. New.

Product Details:
Dwyer pressure switch, series 1800. Range: .2 - 1 wc, SPDT, 15 amp / 460v AC contacts. 1/2" pipe bushing. Surge pressure Z5 psi. Max temp 180°F. 4"D x 3 1/2"H.