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Stainless steel vertical liquid level switch with 1/4 NPT fitting and float

Madison

Madison Liquid Level Switch 1/4 NPT Selectable 316 SS

SKU CH-HQS7-WX7BP

A selectable-function liquid level switch with 1/4 NPT mounting, 316 stainless steel construction, 200 psi pressure rating and 240 V, 0.5 A SPST contacts

  • TypeLight Switch
  • Selectable switch function adapts to your control logic
  • 316 stainless steel construction resists corrosion in harsh fluids
  • 200 psi pressure rating handles demanding tank environments
  • 482 °F maximum temperature suits high-heat applications
  • Compact 3.52 in overall length fits tight mounting spaces

Liquid Level Switch 1/4 NPT Selectable 316 SS

The Madison liquid level switch provides selectable switch function for open tank mounting with a 1/4 inch NPT connection. Constructed from 316 stainless steel, it withstands pressures up to 200 psi and operating temperatures reaching 482 degrees Fahrenheit. The SPST contact form handles a maximum of 0.5 amps at 240 volts with a 60 VA rating.

Suited for industrial tank monitoring requiring

This unit fits vertical installations where a compact 3.52 inch overall length and 2.08 inch float length meet space constraints. Buyers needing horizontal mounting, larger conduit sizes, or different contact forms such as SPDT should consider alternative switch designs. The fixed 1/4 inch NPT tank connection limits direct compatibility with other thread standards.

Installs vertically through a 1/4 inch NPT tank

The 316 stainless steel stem and float resist chemical attack, reducing seizure risk during long service. Misalignment during fitting can restrict float travel, so verify the 2.13 inch float diameter clears internal tank structures. Over-tightening the conduit connection may damage threads, and exceeding the 0.5 amp current rating will shorten contact life.

Highlights

  • Selectable switch function adapts to your control logic
  • 316 stainless steel construction resists corrosion in harsh fluids
  • 200 psi pressure rating handles demanding tank environments
  • 482 °F maximum temperature suits high-heat applications
  • Compact 3.52 in overall length fits tight mounting spaces

Specifications

BrandMadison
TypeLight Switch

Questions about this item

What tank fitting do I need already installed to mount this 1/4 NPT level switch?

The switch threads into a 1/4 inch NPT opening on the tank, so that fitting must be present before installation.

Will the 316 stainless steel stem and float resist corrosion if I keep my existing chemical-process tank?

Both stem and float are 316 stainless steel, a grade chosen for broad chemical compatibility in corrosive liquids.

How can I verify the switch actuates correctly after wiring it to my 240 V control circuit?

With power applied, the selectable contact should open or close cleanly as the float rises and falls through the liquid level.

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