Series F7-MS Multi-Station Level Switch

Customize To Fit Application, Up to Six 316 SS or Buna-N Floats

The SERIES F7-MS Multi-Station Level Switches provides a customized level switch to meet application requirements. Switches can be configured with up to six different control points and stem lengths up to 140" (3.56 m). Stems and floats are available in 316 SS or brass, SPST or SPDT switches, and choice of mountings.

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Product Applications

  • Water level monitoring
  • Oil level control
  • Tank level control
  • Diesel level monitoring

Models & Ordering

Build Your Custom Part. Use our Product Configurator

Specifications

Service:
Compatible liquids.
Wetted Materials:
Stem, connection, and float.
Temperature Limits:
Buna-N floats: 180°F (82.2°C) in water, -40 to 230°F (-40 to 110°C) in oil; SS floats: -40 to 300°F (-40 to 148.9°C).
Wire Leads:
24" (61 cm) free leads; #22 AWG, TFE jacketed, and #18 AWG polymeric.
Mounting Orientation:
Vertical ±30°.

Features

  • Customized level indication quickly and affordably
  • Rugged construction with multiple options yielding exceptional versatility
  • Capable of supporting larger, more buoyant floats
  • Durable construction asserts long reliability in contaminated or turbulent media

Model Chart

EXAMPLE F7-MS B 3 5 F3 1 04.25 07.50 11.66 15.75 20.00 24.10 32.00 J Series F7-MSB3-5F31-04.25-07.50-11.66-15.75-20.00- 24.10-32.00-J Multi-Station Level Switch, brass with beryllium copper stops, 2" NPT, 6 switch points, 316SS float, min. s.g. 0.75, max. pressure 750 psi, SPST, .17A @ 120VAC, L6 set point distance 4.25", L5 set point distance 7.5", L4 set point distance 11.66", L3 set point distance 15.75", L2 set point distance 20", L1 set point distance 24.1", 32" overall length, with junction box for wire leads, NEMA 4.
SERIES F7-MS                           Multi-Station Level Switch
STEM & CONN.
MATERIAL
  B
S
                        Brass with Beryllium Copper Stops
316SS with SS Armco PH-15-7MO Stops
CONNECTION
TYPE
    1
2
3
4
5
                      1/2" NPT (float F2 and F3 only)
1-1/4" NPT (float F1 only)
2" NPT
3" 150# Flange, Carbon Steel (float F2 and F3 only)
3" 150# Flange, 316SS (float F2 and F3 only)
NUMBER OF
SWITCH
POINTS
      1
2
3
4
5
6
                    1 Switch Point
2 Switch Points
3 Switch Points
4 Switch Points
5 Switch Points
6 Switch Points
FLOAT TYPE         F1
F2
F3
                  Buna-N, Min. S.G. 0.75, Max. Pressure 150 psi (10.3 bar)
Buna-N, Min. S.G. 0.55, Max. Pressure 150 psi (10.3 bar)
316SS, Min. S.G. 0.75, Max. Pressure 750 psi (51.7 bar) [Units >72": 300 psi (20.7) bar]
SWITCH TYPE           1
2
3
                SPST, .1 7A @ 12 0VAC
SPST, .8 A @ 120 VAC
SPDT, .17 A @ 120 VAC
NO switch is standard. For NC place and "*" after the corresponding set point distance in the model number.
SET POINT
DISTANCE
(L6)
            00.00               In inches referenced from bottom of connection.
Example: 04.25 would be 4.25" from the bottom of the process connection.
SET POINT
DISTANCE
(L5)
              00.00             In inches referenced from bottom of connection.
Example: 07.50 would be 7.50" from the bottom of the process connection.
SET POINT
DISTANCE
(L4)
                00.00           In inches referenced from bottom of connection.
Example: 11.66 would be 11.66" from the bottom of the process connection.
SET POINT
DISTANCE
(L3)
                  00.00         In inches referenced from bottom of connection.
Example: 15.75 would be 15.75" from the bottom of the process connection.
SET POINT
DISTANCE
(L2)
                    00.00       In inches referenced from bottom of connection.
Example: 20.00 would be 20" from the bottom of the process connection.
SET POINT
DISTANCE
(L1)
                      00.00     In inches referenced from bottom of connection.
Example: 24.10 would be 24.1" from the bottom of the process connection.
OVERALL
LENGTH
(LO)
                        00.00   Maximum overall length with Connection Type 1: 36" (931.4 cm); Connection Type 2:
60" (152.4 cm); Connection Types 3, 4 or 5: 140" (355.6 cm). Minimum length is L1 + D.
OPTIONS                           J Junction Box for Wire Leads, NEMA 4

Product Literature

Manuals

Catalog Pages

Drawings

Questions

Question
Why is the minimum specific gravity important on the float level switches?
Answer
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.

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