Series 1211/1213/1214 Flanged Chamber Level Control

Flanged Chamber Level Control External Mount, Pressure to 450 psig (31 bar), Temperature to 500°F (260°C)

External Mount, Pressure to 450 psig (31 bar), Temperature to 500°F (260°C)

Low minimum specific gravity of 0.40 and rugged flanged chamber for inspection purposes helps insure superior long term performance. Control can be used at maximum process pressure of 450 psig (31 bar) at 100°F (38°C), and 300 psig (21 bar) at 500°F (260°C). Standard 1" NPT connections are provided for mounting. 19 socket weld hubs or 1" flanges are available as options. Hermetically sealed snap switch or mercury switches are provided in a variety of circuit configurations such as SPST, SPDT, or DPDT. High or low DC applications can also be accommodated. General purpose, weatherproof, explosion-proof, or explosion-proof – vapor proof enclosures are provided.

Product Applications

  • Oil Refineries
  • Chemical Plants
  • Power Generating Stations
  • Pumping Stations
  • Heat Transfer Systems
  • Sanitary/Waste Water Facilities
  • Drip Legs
  • Hydraulic Systems
  • Boilers
More Information
Model Chart
EXAMPLE1211WT7810C140 1211-WT-7810-C1-40 Liquid Level Control, weatherproof enclosure, SPDT snap switch, fixed deadband, automatic reset, operating pressure 450 psig (31 bar) at 100°F (38°C), 300 psig (21 bar) at 500°F (260°C), side/bottom process connections, 1" NPT, minimum specific gravity 0.40.
CONNECTION1211     One Vertical and One Horizontal 1" NPT
1213     One Vertical and One Horizontal Flanged Connection
1214     Two Vertical Flanged Connections
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. CSA approved Groups C, D, E, F, G only.
 EV    Explosion-proof/Vapor-proof, NEMA 7, 9, Class I Groups B, C, D, Class II Groups E, F, G. CSA approved Groups C, D, E, F, G only.
CIRCUITS
(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
   C216  316SS Body
   HFC1  Heat Fins & Carbon Steel Body
   HFC216  Heat Fins & 316SS Body (1211 only)
MINIMUM
SPECIFIC
GRAVITY
    40 0.40 Specific Gravity (1211 only)
    140 0.40 Specific Gravity & 150# Flange (1213, 1214 only)
    340 0.40 Specific Gravity & 300# Flange (1213, 1214 only)
    640 0.40 Specific Gravity & 600# Flange (1213, 1214 only)
OPTIONS     H2H2 Socket Weld Hub (1211, steel housing only)
     RManual Reset, Single Stage
     R1Manual Reset, Lower Stage 2-Stage Control
     R2Manual Reset, Upper Stage 2-Stage Control
     R3Manual Reset, Both Stages 2-Stage Control
     STWSS Tag Wired
     01Breather Only (E-Housing only)
     02Drain Only (E-Housing only)
     12Breather & Drain (E-Housing only)
     23720Fungus Proofing


CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS

SWITCH TYPE
SWITCH ACTION
ELECTRICAL RATINGS IN AMPS
ORDERING CODE
AC
DC
SINGLE STAGE
TWO STAGE
120V
240V
440V
30V
125V
250V
LOWER
UPPER
CHART A
Mercury Contacts
SP-ST open on level FALL
10
5
3†
 
10
5
-4820
-4820
-21
SP-ST open on level RISE
10
5
3†
 
10
5
-4821
-4821
-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
-4814
-4814
-13
DP-ST two switches E.I.* open on level RISE
10
5
3†
 
10
5
-4813
-4813
-14
DP-DT two SP-DT switches
4
2
1†
 
4
2
-4806
-4806
-06
CHART B
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

†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.
*Electrically Independent.
**Resistive.

C1-40: Minimum specific gravity 0.40. Process pressure 450 psig (31 bar) at 100°F (38°C), 300 psig (21 bar) at 500°F (260°C).
Switch Type: Snap action or mercury; see Model Chart.
Electrical Rating: See Model Chart.
Wiring Connections: G, WT or E enclosure, terminal block. EV enclosure, 18" (460 mm) leads.
Process Connections: 1" NPT or flanges. See model chart. (1" socket weld-hubs optional).
Enclosures: G: painted steel and aluminum; WT: painted steel, aluminum and neoprene; E: aluminum; EV: aluminum, neoprene.
Wetted Parts: C1 construction. Chamber: carbon steel. Trim: 303SS, 304SS, and 430SS (316SS and 430SS optional).
Weight: 1211: 34 lb (15.5 kg); 1213: 44 lb (20 kg); 1214: 47 lb (21.4 kg).