Series 211/213/214 Flanged Chamber Level Control
External Mount, Pressure to 450 psig (31 bar), Temperature to 500°F (260°C)
A removable stainless steel float enclosed in a flanged carbon steel chamber is featured in the durable, field proven 211 Series. External side mount series includes 1" NPT process connections as standard, or with socket weld hubs; or, 1" flanges as options. Pressure and temperature limits are 450 psi (31 bar) at 100°F (38°C), and 300 psi (21 bar) at 500°F (260°C). Minimum specific gravity for all models is 0.60. The models shown can be ordered with a variety of electrical arrangements including SPST, SPDT, or DPDT circuits in hermetically sealed snap action or mercury contacts. Switches can be ordered open on level rise or fall. Single pole double throw electrically independent circuits are available as well as low current or high DC current applications. A full range of enclosures are offered including general purpose NEMA 1; weatherproof NEMA 4X; (explosion-proof) and (explosion-proof/vapor-proof) Groups B, C, D, E, F, G, NEMA 7, 9.
- Oil refineries
- Chemical plants
- Power generating stations
- Pumping stations
- Heat transfer systems
- Sanitary/waste water facilities
- Drip legs
- hydraulic systems
Models & Ordering
- Minimum Specific Gravity:
- Temperature Limit:
- Ambient Temperature: 212°F (100°C); Process Temperature: up to 500°F (260°C).
- Switch Type:
- Snap or mercury switch. See charts A and B on Model Chart.
- Electrical Rating:
- See charts A and B on Model Chart.
- Wiring Connections:
- G, WT or E enclosure, terminal block. EV enclosure, 18" (460 mm) leads.
- Process Connections:
- 1" NPT standard (socket weld hubs or flanges optional). See Model Chart.
- G, painted steel and aluminum. WT, painted steel, aluminum and neoprene. E, aluminum. EV, aluminum and neoprene.
- Wetted Parts:
- C1 construction. Chamber: carbon steel; Trim: 303SS, 304SS, and 430SS (430SS optional).
- 211: 34 lb (15 kg); 213: 44 lb (20 kg); 214: 51 lb (23 kg).
|EXAMPLE||211||2||WT||7810-10||C1||60||L12||211-2-WT-7810-10-C1-60-L12 Level Control, flanged carbon steel chamber, weatherproof enclosure, (2) SPDT snap action switches, lower stage adjustable deadband, upper stage fixed deadband, operating pressure 450 psig @ 100°F, side/bottom 1" NPT process connections, minimum s.g. 0.60.|
|CONNECTION||211||One Horizontal and One Vertical 1" NPT|
|213||One Vertical and One Horizontal Flanged Connection|
|214||Two Vertical Flanged Connections|
|DEADBAND||1||Single Stage Operation, with Adjustable Deadband|
|2||Two Stage Operation, Lower Stage has Adjustable Deadband, Upper Stage has Fixed Deadband|
|3||Two Stage Operation, Lower Stage has Fixed Deadband, Upper Stage has Adjustable Deadband|
|4||Two Stage Operation, Both Stages have Fixed Deadband with Adjustable Spread Between Stages|
|ENCLOSURE||G||General Purpose, NEMA 1|
|WT||Weatherproof, NEMA 3R, 4, 4X|
|E||Explosion-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G|
|EV||Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G|
(for electrical circuits
see charts A & B below)
|48XX||Single Stage Mercury Switch, see chart A|
|48XX-XX||Two Stage, Mercury Switch, see chart A|
|78XX||Single Stage, Snap Switch, see chart B|
|78XX-XX||Two Stage, Snap Switch, see chart B|
|78XXHM||Hermetically Sealed Snap Switch, see chart B|
|98XX||Single Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B|
|98XX-XX||Two Stage, High Capacity DC Snap Switch, use heat fins (HF) if process temperature exceeds 350°F (177°C), do not exceed 450°F (232°C), see chart B|
|CHAMBER MATERIAL||C1||Carbon Steel Body|
|HFC1||Heat Fins & Carbon Steel Body|
|HFC216||Heat Fins & 316SS Body (211 only)|
|60||0.60 Specific Gravity (211 only)|
|160||0.60 Specific Gravity & 150# Flange (213, 214 only)|
|360||0.60 Specific Gravity & 300# Flange (213, 214 only)|
|660||0.60 Specific Gravity & 600# Flange (213, 214 only)|
|OPTIONS||H2||H2 Socket Weld Hub (211, steel housing only)|
|STW||SS Tag Wired|
|01||Breather Only (E-Housing only)|
|02||Drain Only (E-Housing only)|
|12||Breather & Drain (E-Housing only)|
CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS
|SWITCH TYPE||SWITCH ACTION||ELECTRICAL RATINGS IN AMPS||ORDERING CODE|
|AC||DC||SINGLE STAGE||TWO STAGE|
|SP-ST open on level FALL||10||5||3†||10||5||-4821||-4821||-21|
|SP-ST open on level RISE||10||5||3†||10||5||-4820||-4820||-20|
|SP-DT one switch||4||2||1†||4||2||-4810||-4810||-10|
|SP-DT two switches E.I.*||10||5||3†||10||5||-4815||-4815||-15|
|DP-ST two switches E.I.* open on level FALL||10||5||3†||10||5||-4813||-4813||-13|
|DP-ST two switches E.I.* open on level RISE||10||5||3†||10||5||-4814||-4814||-14|
|DP-DT two SP-DT switches||4||2||1†||4||2||-4806||-4806||-06|
snap action contacts
|SP-DT one switch||12||5||3†||0.5**||0.25**||-7810||-7810||-10|
|DP-DT two SP-DT switches||12||5||3†||0.5**||0.25**||-7806||-7806||-06|
|SP-DT one hermetically sealed switch||5||5||5**||-7810HM||-7810HM||-10HM|
|DP-DT two hermetically sealed SP-DT switches||5||5||5**||-7806HM||-7806HM||-06HM|
|DP-DT two SP-DT switches||10||3||10‡||3‡||-9806||-9806||-06|
|SP-DT one switch||10||3||10‡||3‡||-9810||-9810||-10|
|DP-DT Two SP-DT switches||2||2||0.4**||0.25**||-1006||-1006||-06|
|SP-DT one switch||2||2||0.4**||0.25**||-1010||-1010||-10|
†Available on special order, change 1st digit in ordering code from 4 to 5 or 7 to 8, i.e., -4820 becomes -5820, -7810 becomes -8810, etc.
‡10 amp inductive (polarized) at 125 VDC.
- Why is the minimum specific gravity important on the float level switches?
- If a medium has a lower s.g. than the rated minimum for a float, the float will sink through the media and the switch will not operate.
Photo DownloadsYou must be logged in to view this content.
Click here to login to your account.