Series 102/1102 Flanged Chamber Type Level Control

Flanged Chamber Type Level Control Operating Pressures to 300 PSIG

Operating Pressures to 300 PSIG

The SERIES 102 & 1102 Flanged Chamber Type Level Controls are external cage type level switches which are self-contained in a side mount body. The sturdy 102 Series operates at pressure to 400 psi (28 bar) and temperatures to 425°F (218°C). The 102 Series will operate to a minimum specific gravity of 0.60. The 1102 Series will operate to a specific gravity of 0.40 under the same operating pressure and temperature. The 102 and 1102 Series contain a stainless steel float and offer a choice of cast iron, cast steel, or inexpensive cast 316 SS float chamber. These series are well suited for applications where ease of accessibility is desired for pressure or vacuum vessels. Electrical circuits using hermetically sealed snap action or mercury contacts are available in a variety of actions including SPST, SPDT, DPDT and DPST combinations. Optional circuits are available for low current, low voltage direct circuits; high direct current or high temperature applications. Electrical enclosures provide general purpose; weatherproof, explosion-proof or explosion-proof/vapor proof capability. The 102 design also features three 1" NPT process connections for side/side or side/bottom piping. When using the side/side process connection, the bottom 1" NPT connection can be used as a drain.

Product Applications

  • Pressure or vacuum vessels
  • Chemical processing plants
  • Steam and electric generating stations
  • Hydraulic accumulators
  • Vapor-liquid separators
  • Scrubbers
  • Oil refineries
  • Storage tanks
More Information
Model Chart
EXAMPLE102WT781010C16012102-WT-7810-C1-60 Liquid Level Control with flanged chamber enclosure, SPDT snap action switch, fixed deadband, automatic reset, Operating pressure 400 psig (28 bar) at 425°F (218°C), side/bottom, side/side mounting standard with 1" NPT connections, minimum specfic gravity 0.60. 
MODEL102      Minimum specific gravity 0.60 
1102      Minimum specific gravity 0.40 
ENCLOSURES G     General purpose, NEMA 1.UL
 WT     Water-tight, NEMA 4, 4X.UL
 E     Explosion-proof, Class I Groups B, C, D, Class II Groups E, F, G, NEMA 7, 9.UL
 EV     Explosion-proof, vapor proof, Class I Groups B, C, D, Class II Groups E, F, G, NEMA 7, 9.UL
CIRCUITS
(for electrical circuits see charts below)
  48XX    Single stage, mercury switch, see chart A or C below. 
  48XXXX   Two stage, mercury switch, see chart A or C below. 
  78XX    Single stage, snap switch, see chart B or D below. 
  78XXXX   Two stage, snap switch, see chart B or D below. 
  78XXHM    Hermetically sealed snap switch, see chart B below. 
  98XX    Single stage, high capacity DC snap switch, use heat fins (HF) if process temperature excced 350°F (177°C), do not exceed 450°F (232°C), see chart B or D below. 
  98XXXX   Two stage, high capacity DC snap switch, use heat fins (HF) if process temperature excced 350°F (177°C), do not exceed 450°F (232°C), see chart B or D below. 
CHAMBER CONSTRUCTION    C  Cast iron chamber, pressure rating 300 psig (22 bar) at 425°F (218°C).UL
    C1  Cast steel chamber, pressure rating 400 psig (28 bar) at 425°F (218°C).UL
    C2  Cast 304SS chamber. 
    C216  Cast 316SS chamber, float and rod, armature 430SS, pressure rating 400 psig (28 bar) at 425°F (218°C).UL
MINIMUM SPECIFIC GRAVITY     40 Minimum specific gravity 0.40 (1102 only) 
     60 Minimum specific gravity 0.60 (102 only)UL
OPTIONS      RManual reset for single stage. 
      R1Manual reset for lower stage of 2-stage controls. 
      STWStainless steel tag (Wired) 
      01Breather only. (E-Housing only) 
      02Drain only. (E-Housing only) 
      12Breather and drain for E type enclosure. Recommended for high humidity or outdoor service. 
      23720Fungus proofing special 23720. 


CHARTS A & B - ELECTRICAL CIRCUITS AND RATINGS - SERIES 102

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
-4821
-4821
-21
UL
SP-ST open on level RISE
10
5
3†
 
10
5
-4820
-4820
-20
UL
SP-DT one switch
4
2
1†
 
4
2
-4810
-4810
-10
UL
SP-DT two switches E.I.*
10
5
3†
 
10
5
-4815
-4815
-15
UL
DP-ST two switches E.I.* open on level FALL
10
5
3†
 
10
5
-4813
-4813
-13
UL
DP-ST two switches E.I.* open on level RISE
10
5
3†
 
10
5
-4814
-4814
-14
UL
DP-DT two SP-DT switches
4
2
1†
 
4
2
-4806
-4806
-06
UL
CHART B
snap action contacts
SP-DT one switch
12
5
3†
 
0.5**
0.25**
-7810
-7810
-10
UL
DP-DT Two SP-DT switches
12
5
3†
 
0.5**
0.25**
-7806
-7806
-06
UL
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
-06
 
 
SP-DT one switch
10
3
 
 
10‡
3‡
-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.

CHARTS C & D - ELECTRICAL CIRCUITS AND RATINGS - SERIES 1102

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 C
Mercury Contacts
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
CHART D
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
-06
 
SP-DT one switch
10
3
 
 
10‡
3‡
-9810
-10
 
  • Unique design allows the simple removal of four bolts from the inspection plate to examine the float and chamber for cleaning or wear without disconnecting the piping or electrical circuitry
  • Electrical enclosures provide general purpose, weatherproof, explosion-proof or explosion-proof/vapor proof capability as well as cost effective cast 316SS float chamber option
  • Electrical circuits using hermetically sealed snap action or mercury contacts are available in a variety of actions including SPST, SPDT, DPDT and DPST combinations
  • The 102 design features three 1" NPT process connections for side/side or side/bottom piping allowing the bottom 1" NPT connection to be used as a drain when using the side/side process connection