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Pressure Switches & Gauges

Vaporstat ® Controllers L408J

Line voltage pressure controllers that provide operating control or automatic limit protection for pressure systems of up to 4 psi (27.6 kPa). All models have Microswitch snap switches to open or close a circuit on a pressure rise.

Overview
Features & Benefits:
  • Primarily for use in vapor heating systems, but also may be used with liquids, air, and other noncombustible gases
  • Stainless steel diaphragm also allows use with ammonia, oxygen, distilled water, and similar media
  • Maximum surge pressure of 15 psi (103.4 kPa)
  • All models have an adjustable subtractive differential
  • Adjustments are made by screws on top of case
  • Scaleplates are marked in English (psi) and metric (kPa) units
  • Case has clear plastic cover so that pressure settings can be observed
  • Hexagonal fitting with 1/4-18 NPT internal threads for direct mounting to the 50024585-001 Brass or 14206 Steel Steam Trap (siphon loop)
  • Can also be surface mounted by screws through holes (knockouts) in back of case
  • Ground screw terminal
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L408J1009/U
VAPORSTAT CONTROLLER
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L408J1017/U
PRESSURETROL
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L408J1025/U
PRESSURETROL
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L408J1033/U
PRESSURETROL
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