mercoid pressure switch for sale, brand-new and used.

This auction is for a DA-33-153-RG6 Dwyer Mercoid pressure switch with 5-100PSI, 4D296632. It is new old stock, and includes its instruction booklet. I combine shipping.

This auction is for a DA-31-153-RG8 Dwyer Mercoid pressure switch with 10-200PSI, serial number 4D305382. It is new old stock, and includes its instruction booklet. I combine shipping.

This auction is for a DA-31-153-R3 Dwyer Mercoid pressure switch with 12PSI, serial number 3D731395. It is new old stock, and the instruction booklet is missing. I combine shipping.

This auction is for a PPQ-2-X2A Dwyer Mercoid pressure switch with .03-2 inch water range, serial number To5H-S39059101. It is new old stock, and includes its instruction booklet. I combine shipping.

 

Mercoid® Series “D” Pressure Controls feature hermetically sealed mercury switches, Bourdon tube power elements, visible setpoint, adjustable deadband or fixed deadband and pressure ranges from 0-30” Hg. Vac to 800-8000 psig (345 bar). FEATURES • Visible calibrated dial • On/off indication • Adjustable, fixed deadband, or manual reset • External switch setpoint adjustments • Minimum deadband is obtainable at any point in the range • Pressure Ranges of full vacuum to 8000 psig.

Adjustable or fixed deadband SPDT snap-action, hermetically sealed snap action or hermetically sealed mercury switch External switch setpoint adjustments Minimum deadband is obtainable at any point in the range Pressure Ranges of full vacuum to 8000 psig UL listed, CSA approved. Many models FM approved General purpose, weatherproof or explosion-proof enclosures Specifications

Mercoid model DA-31-153-1 pressure switch. Looks unused in its original box. The box has some storage wear, dusty and dirty.

Mercoid Control DA21-2 Pressure Switch Inventory #3196 DESCRIPTION The Mercoid Control pressure switch is in good condition. It was cleaned. It needs a new mercury bulb switch.

New old stock Mercoid Da-531 pressure switch in the original box. All brass with the mercury filled bourbon tube. Measures about 6" in diameter.