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Series 391/393/394 Side Mounted-Chamber Type Level Control
Compact, Low Cost, Hermetically Sealed Snap Switch Option
Heavy duty and low cost is the perfect description for the Series 391 Level Control level control. Stainless steel switching mechanism uses gravity return action instead of springs for long life. Weatherproof enclosure is standard. Welded steel chamber is good for 650 psig (45 bar) at 600°F (315°C).
Product Applications
- Refineries
- Chemical plants
- Power generating stations
- Water treatment plants
- Mixing systems
- Scrubbers
- Accumulators
- Condensate recovery
- Industrial tanks and vessels
Product Literature
Manuals
Catalog Pages
SDS
Model Chart
SERIES 391, 393, 394 LIQUID LEVEL CONTROL 391-X-X-X-X-OPT MERCOID 391 LIQUID LEVEL CONTROL 393-X-X-X-X-OPT MERCOID 393 LIQUID LEVEL CONTROL 394-X-X-X-X-OPT MERCOID 394 LIQUID LEVEL CONTROL 1ST SYMBOL (1ST X) ENCLOSURE G GENERAL PURPOSE NEMA 1 WT WATERTIGHT NEMA-4, 4X E EP CL I GRP B,C,D CL II GRP E,F,G NEMA-7, 9 EV EP VP CL I GRP B,C,D CL II GRP E,F,G NEMA-7, 9 2ND SYMBOL (2ND X) CIRCUITS 4806 5806 7806HM 4810 7810HM 4813 7806GLD 4814 4815 4820 4821 7804 7806 7807 7810 9804 9806 9810 1010 1006 4912 4951 3RD SYMBOL (3RD X) CHAMBER MATERIAL C1 CARBON STEEL BODY 4TH SYMBOL (4TH X) MINIMUM SPECIFIC GRAVITY 70 0.70 SPECIFIC GRAVITY (391 ONLY) 80 0.80 SPECIFIC GRAVITY (391 ONLY) 95 0.95 SPECIFIC GRAVITY (391 ONLY) 170 0.70 SPECIFIC GRAVITY & 150# FLANGE (393,394 ONLY) 180 0.80 SPECIFIC GRAVITY & 150# FLANGE (393,394 ONLY) 195 0.95 SPECIFIC GRAVITY & 150# FLANGE (393,394 ONLY) 370 0.70 SPECIFIC GRAVITY & 300# FLANGE (393,394 ONLY) 380 0.80 SPECIFIC GRAVITY & 300# FLANGE (393,394 ONLY) 395 0.95 SPECIFIC GRAVITY & 300# FLANGE (393,394 ONLY) 670 0.70 SPECIFIC GRAVITY & 600# FLANGE (393,394 ONLY) 680 0.80 SPECIFIC GRAVITY & 600# FLANGE (393,394 ONLY) 695 0.95 SPECIFIC GRAVITY & 600# FLANGE (393,394 ONLY) OPTIONS (OPT) -H2 H2 SOCKET WELD HUB (391, STEEL HOUSING ONLY) -STW SS TAG WIRED -01 BREATHER ONLY (E-HOUSING ONLY) -02 DRAIN ONLY (E-HOUSING ONLY) -12 BREATHER AND DRAIN (E-HOUSING ONLY) -23720 FUNGUS PROOFING SPEC 23720 1. CIRCUITS SK-547PC, SK-548PSS OBSOLETE 8-1-2013 2. CIRCUITS 4806AV 4810AV 4813AV 4814AV 4815AV 4820AV 4821AV 7706AV 7710AV 4808VAV 4809VAV 4826VAV 4828VAV 4838VAV 4896VAV OBSOLETE 8-22-2014
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