McDonnell & Miller 149400 67-LWCO-QUICK HOOK UP
McDonnell & Miller 149400 67-LWCO-QUICK HOOK UP
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Ships factory-new in original packaging.
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The McDonnell & Miller 149400 (Model 67-LQ) Low Water Cut-Off is the industry standard safety control engineered for low-pressure steam boilers. Designed with the patented "Quick Hook-Up" configuration, this float-type control hooks directly into existing gauge glass tappings to cut power to the burner instantly if the boiler water level falls to a critically low line, preventing structural dry-firing damage.
Key Features
- Quick Hook-Up Installation: Engineered with specialized dual-coupling union fittings that tap directly into standard gauge glass connections without requiring complex pipe cutting or system drain-downs.
- Integrated Blow-Down Valve: Features a robust built-in blow-down valve assembly designed to quickly flush out accumulated sediment and scale from the float chamber during routine maintenance.
- Dual Switch Capability: Equipped with an auxiliary terminal configuration ready to power an automatic water feeder or trigger an external low-water alarm loop.
| Specification Element | Mechanical Metric |
|---|---|
| Maximum Steam Pressure | 20 psi (1.4 bar) |
| Maximum Fluid Temperature | 250°F (121°C) |
| Connection Profile | 1/2" NPT Quick Hook-Up Union Tappings |
| Electrical Switch Type | Mercury-Free SPDT Snap-Action Switches |
Corporate Procurement & PO Processing
Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.
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