Vintage Mercoid Pressure Control Switch - Series DA-31-153-9 - $100 (Austin)

Vintage Mercoid Pressure Control Switch - Series DA-31-153-9 1 thumbnail

condition: good

make / manufacturer: Mercoid

model name / number: DA-31-153-9

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For sale is a vintage Mercoid Series DA Pressure Control, Model DA-31-153-9. This is a heavy-duty industrial pressure switch with a visible Bourdon tube sensing element and a mercury switch mechanism.
Details:
• Model: DA-31-153-9
• Pressure Range: 0 to 300 psi (Range 31)
• Electrical Ratings: 4A @ 120V / 2A @ 240V / 1A @ 440V
• Condition: Used, original condition. Mechanical linkage moves freely. Clear cover is intact. Sold as-is (untested).
• Feature: Contains the original mercury tilt switch (highly reliable for industrial applications).
Great for steam boiler systems, industrial pump control, or as a high-quality replacement part for vintage machinery.

post id: 7925311575

posted: 2026-04-03 00:10

updated: 2026-04-16 05:45

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Vintage Mercoid Pressure Control Switch - Series DA-31-153-9 -...

For sale is a vintage Mercoid Series DA Pressure Control, Model DA-31-153-9. This is a heavy-duty industrial pressure switch with a visible Bourdon tube sensing element and a mercury switch...