Series 1100A Pneumatic & Electric High/Low Liquid Level Switch
Pneumatic liquid level switch that combines a cast carbon steel external chamber and a liquid level controller. Used in high- and low-level safety applications.
Applications
- Gas Compressor Scrubbers
- Separators
- Sumps
- Safety Systems


Features
- Pneumatic or Electric Controller
- Stainless Steel Internals for Marine Service
- Weathertight Case
- Stainless Steel Displacer
- Left- or Right-Hand Mount
- Top-, bottom- or side-mount connections
- Direct or Reverse Acting
- Optional NACE
- Optional 2220 psi W.P. (ANSI 900)
- Standard 1,480 psig maximum working pressure @ 220°F/104°C (optional 2,220 psig working pressure)
Specifications
Chamber:
- 1480 psi W.P. (ANSI 600) at 100° F
- Process Connections:
1.00” Screwed NPT; 1.00” Socket Weld;
1.00” Butt Weld, 2.00” Flanged - Cast Steel ASTM A216
- Displacer Material 300 Series SST
- Weight: 46 lbs.
Controller:
Pilot Action:
- Pneumatic – Snap (on/off)
- Electric – SPDT/DPDT (on/off)
- Maximum Temperature: 400° F
- Minimum Air Supply: 20 psi
- Minimum Specific Gravity:
•0.5 (Snap Pilot, SPDT)
•0.7 (DPDT)

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