Mercoid Series 301
Top Mounted Float Level Control
Extended Stem Lengths — Adjustable Trip Point — Large Tank Service
The Mercoid Series 301 is a top-mounted float level control designed for large tanks and vessels where extended stem lengths are required. The adjustable trip point allows field calibration without removing the unit from service. The rugged carbon steel construction handles a wide range of compatible liquids, and the SPDT snap switch provides reliable pump control or alarm service. Stem lengths are available up to 72 inches, making the Series 301 ideal for tall storage tanks, water towers, and bulk liquid storage applications.
Specifications
Service
Compatible liquids.
Wetted Materials
Body: carbon steel; Float: stainless steel; Stem: carbon steel or stainless steel.
Temperature Limit
250°F (121°C).
Pressure Limit
150 psig (10.3 bar).
Enclosure Rating
NEMA 4X standard. Optional general purpose or explosion-proof.
Switch Type
SPDT snap switch. Optional DPDT.
Electrical Rating (Snap)
12A @ 120 VAC, 5A @ 240 VAC, 0.5A @ 125 VDC, 0.25A @ 250 VDC resistive.
Electrical Connections
Screw terminal.
Conduit Connection
3/4″ female NPT.
Process Connection
1-1/2″ female NPT top mount.
Stem Length
Standard 12″ to 72″. Custom lengths available.
Trip Point Adjustment
Field adjustable without removing from service.
Specific Gravity
0.7 minimum.
Agency Approvals
UL.
Popular Models
| Model Number | Description |
|---|---|
| 301-WT-7810-C-60 | Top mounted float level control, SPDT snap switch, 12″ stem. |
| 301-WT-7810-C-72 | Top mounted float level control, SPDT snap switch, 72″ stem. |
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