Mercoid Series 221/223/224 Flanged Chamber Level Control
Float Level SwitchesMercoid Series 221/223/224 Flanged Chamber Level Control
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Series 221/223/224
Mercoid Series 221/223/224 Flanged Chamber Level Control
Flanged chamber level control for external mounting on high-pressure steam and process vessels. Rated to 1000 psig (69 bar) and 475°F (246°C) with SPDT snap, hermetically sealed snap, or mercury switch contacts.
Key Features
- External mount flanged chamber design
- Rated to 1000 psig (69 bar) and 475°F (246°C)
- SPDT snap, hermetically sealed snap, or mercury switch
- NEMA 4X enclosure standard
- Optional explosion-proof housing
- UL and CSA approved
- 221: NPT connections; 223: 300 lb ANSI flange; 224: 600 lb ANSI flange
Specifications
Max Pressure1000 psig (69 bar) at 100°F; 800 psig at 475°F
Max Temperature475°F (246°C)
Wetted MaterialsBody: carbon steel or 316 SS; Float/Trim: 303/304/316/430 SS
Switch TypeSPDT snap, hermetically sealed snap, or mercury switch
EnclosureNEMA 4X standard; optional explosion-proof
Repeatability±1/4″ (6.4 mm)
Specific Gravity0.6 minimum
Process Connections221: 1″ NPT; 223: 1-1/2″ 300 lb ANSI; 224: 1-1/2″ 600 lb ANSI
Agency ApprovalsUL and CSA
Typical Applications
- High-pressure steam vessels
- Boiler drum level control
- Process pressure vessels
- High-temperature liquid service
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