Mercoid Controls produces a broad range of pressure,
temperature, and level controls for use in heavy industrial,
petrochemical, and electrical utility plants. Established in
1916, Mercoid has been serving industry for over 80 years. Our
joining with Dwyer Instruments, Inc.,combines over 150 years of
experience to produce an even stronger and more resourceful
company to serve your instumentation and control needs.We have
over 3,000 products from
Dwyer, Mercoid, W.E. Anderson, Proximity and Love Controls
including the Merciod DA Series.
Cast Iron Chamber-Water Level Controls -
Series 123/125
Heavy Duty, Snap Action or Direct Movement
Flanged Chamber Level Controls -
Series 211
External Mount, Pressures to 450 psig (31 bar), Temperatures to 500°F
(260°F), Hermetically Sealed Switches
Flanged Chamber Level Controls -
Series 221
External Mount, Pressures to 1000 psig (69 bar), Temperatures to 475°F
(246°C), Hermetically Sealed Switches
Flanged Chamber Level Controls -
Series 1211
External Mount, Pressures to 450 psig (31 bar), Temperatures to 500°F
(260°C), Hermetically Sealed Switches, Minimum Specific Gravity 0.40
Flanged Chamber Level Controls -
Series 1221
External Mount, Pressures to 1000 psig (69 bar), Temperatures to 475°F
(246°C), Hermetically Sealed Switches, Minimum Specific Gravity 0.40.
Flanged Chamber Level Controls -
Series 102/1102
Pressures to 400 psig (28 bar), Temperatures to 425°F (218°C),
Hermetically Sealed Switches, Series 102: Minimum Specific Gravity:
0.60, Series 1102: Minimum Specific Gravity: 0.40
Flanged Chamber Level Controls -
Series 215
Pressures to 450 psig (31 bar), Temperatures to 500°F (260°C),
Hermetically Sealed Switches, Adjustable Deadband 12" to 24"
Lever Arm and Float Controls -
Series 40-41, 46-47, 49
Pump Controllers -
Series MPC
One or Two Pump Control with Built-in Alternation, Over Temperature
Protection and Seal Failure Monitoring
Relay/Controller/Power Supply -
Series PCP
10 A SPDT Relay, 24 VDC Power Supply, Latching Circuit for Level Control
Side Mount Level Controls -
Series 500
Pressures to 400 psig (28 bar), Temperatures to 425°F (218°C),
Hermetically Sealed Switches, Threaded or Flanged
Top Mount/Displacer Type Level Controls -
Series 190/195
Single or Two Stage for Pumps and Alarms, Hermetically Sealed Switches,
Fixed or Adjustable Deadband
Top Mount/Float Type Level Controls -
Series 301
Single Stage for Alarms, Hermetically Sealed Switches, Depth to 12 ft.
Top Mount/Float Type Level Controls -
Series 401
Single or Two Stage for Pump or Alarm, Hermetically Sealed Switches,
Depth to 12 ft., Specific Gravity to 0.50
Top Mount-Displacer Type Level Controls -
Series 193
Three Stage for Pumps or Alarms, Hermetically Sealed Switches
Torque Tube Type Level Controls -
Series 75
Direct Action, Mercury Contacts
Welded Chamber Level Controls -
Series 251
External Mount, Pressures to 1250 psig (86 bar), Temperatures to 750°F
(400°C), Explosion-Proof Housings, Hermetically Sealed Switches
Welded Chamber Level Controls -
Series 1251
External Mount, Pressures to 1250 psig (86 bar), Temperatures to 500°F
(260°C), Hermetically Sealed Switches, Minimum Specific Gravity 0.40
Welded Chamber Level Controls -
Series 1261
External Mount, Pressures to 1750 psig (121 bar), Temperatures to 500°F
(260°C), Hermetically Sealed Switches
Welded Chamber Level Controls -
Series 291/1265
External Mount, Series 291: Pressures to 300 psig (24 bar), Temperatures
to 600°F (315°C), Series 1265: Pressures to 1500 psig (103 bar),
Temperatures to 300°F (149°C), Hermetically Sealed Snap Switches, Single
Stage, Low Cost
Welded Chamber Level Controls -
Series 391
External Mount, Pressures to 775 psig (53 bar), Temperatures to 600°F
(315°C), Optional Explosion-Proof Housings, Hermetically Sealed
Switches, Single Stage, Low Cost
Welded Construction Level Controls -
Series 201
External Mount, Pressures to 1000 psi (69 bar), Temperatures to 750°F
(400°C), Optional Explosion-proof Housings, Hermetically Sealed Switches
