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Liquid level switches are used to detect and control the level of liquids in tanks, reservoirs & pipelines to monitor and maintain desired liquid levels. They work on the principle
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G| Style | Model | Float Material | Body Material | Mounting | Stem Material | Float Specific Gravity | Switch Function | Contact Form | Float Length | Price (inc. VAT) | |
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| A | M4400-ULL-NO | £104.51 | |||||||||
| B | M4500-ULL-NO | £108.55 | |||||||||
| C | M7000-ULL-NO | £129.38 | |||||||||
| D | M9000-ULL-NO | £108.69 | |||||||||
| C | M7000-PBT-ULL-NO | £84.90 | |||||||||
| E | M4400-PBT-ULL-NO | £82.86 | |||||||||
| F | M8020-ULL-NO | £105.20 | |||||||||
| G | M8000-ULL-NO | £56.30 |
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J| Style | Model | Float Length | Float Dia. | Body Material | Operating Temp. | Mounting | Max. Voltage | Height | Float Position | Price (inc. VAT) | |
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| A | 9038DG7 | £717.61 | |||||||||
| B | 9038DW8 | £1,405.46 | |||||||||
| C | 9038DR8 | - | RFQ
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| A | 9038DG8 | £727.33 | |||||||||
| A | 9038DG9 | £790.94 | |||||||||
| D | 9038CW31 | - | RFQ
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| E | 9038CG32 | £584.06 | |||||||||
| F | 9038AW1 | £931.10 | |||||||||
| E | 9038CG32N5 | £754.55 | |||||||||
| G | 9038AG1N5 | £441.37 | |||||||||
| H | 9038CW32 | £1,344.56 | |||||||||
| E | 9038CG33 | £600.11 | |||||||||
| G | 9038AG1 | £268.09 | |||||||||
| E | 9038CG32Z20 | £599.45 | |||||||||
| E | 9038CG34 | £619.39 | |||||||||
| F | 9038AR1 | £910.36 | |||||||||
| E | 9038CG33Z20 | £588.68 | |||||||||
| E | 9038CG31 | £591.04 | |||||||||
| F | 9038AW1N5 | £1,103.59 | |||||||||
| G | 9038AG1S6 | £332.58 | |||||||||
| I | 9038CG36Z20 | £589.81 | |||||||||
| J | 9038CG33F3 | £560.47 | |||||||||
| J | 9038CG31F3 | £551.00 | |||||||||
| G | 9038AG1C | £306.19 | |||||||||
| E | 9038CG34Z20 | - | RFQ
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| A | M4400-ULL-NC | £127.46 | |||||||||
| B | M9000-ULL-NC | £92.00 | |||||||||
| C | M8000-ULL-NC | £57.82 | |||||||||
| D | M8020-ULL-NC | £104.88 |
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BC| Style | Model | Float Dia. | Operating Temp. | Mounting | Height | Float Position | Float Travel | Switch Function | Contact Form | Price (inc. VAT) | |
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| A | 9038CG36N4 | £745.85 | |||||||||
| B | 9038CG36N4LZ20 | £639.86 | |||||||||
| C | 9038AG1N4 | £343.38 |
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N| Style | Model | Float Material | Float Length | Float Dia. | Body Material | Operating Temp. | Mounting | Max. Current | Stem Material | Price (inc. VAT) | |
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| A | M4190-BU | £370.33 | |||||||||
| B | MS7000 | £31.12 | |||||||||
| C | MS9000 | £43.26 | |||||||||
| D | MS8000 | £29.17 | |||||||||
| E | MS8800 | £125.22 | |||||||||
| F | MS5917 | £112.95 | |||||||||
| G | MSB5600 | £210.17 | |||||||||
| H | M4190 | £403.60 | |||||||||
| I | M4190-HP | £367.18 | |||||||||
| J | M5000 | £69.65 | |||||||||
| K | M5010 | £84.62 | |||||||||
| L | M5600-PR | £143.18 | |||||||||
| M | M5920 | £178.79 | |||||||||
| N | MS5010 | £130.12 |
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Y| Style | Model | Contact Form | Float Material | Float Length | Float Dia. | Body Material | Operating Temp. | Mounting | Max. Current | Price (inc. VAT) | |
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| A | M5910 | £181.48 | |||||||||
| B | M5900 | £192.96 | |||||||||
| C | M8800 | £70.67 | |||||||||
| D | M7000 | £24.29 | |||||||||
| E | M9700 | £42.58 | |||||||||
| F | M9000 | £36.56 | |||||||||
| G | M8705 | £50.35 | |||||||||
| H | M7750 | £29.69 | |||||||||
| I | M7790 | £33.41 | |||||||||
| J | M7725 | £33.83 | |||||||||
| K | M5917 | £123.26 | |||||||||
| L | M4300 | £71.48 | |||||||||
| M | M8700 | £17.88 | |||||||||
| N | M8710 | £64.49 | |||||||||
| O | M8000 | £18.96 | |||||||||
| P | M8000B | £40.72 | |||||||||
| Q | M8750 | £23.75 | |||||||||
| R | M8790 | £22.74 | |||||||||
| S | M7700 | £25.50 | |||||||||
| T | M8700-C | £24.26 | |||||||||
| U | M9705 | £128.25 | |||||||||
| V | M7740 | £31.85 | |||||||||
| W | M5970 | £149.14 | |||||||||
| X | M4010 | £74.35 | |||||||||
| Y | MSB8800 | £123.11 |
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C| Style | Model | Float Material | Float Dia. | Body Material | Operating Temp. | Mounting | Height | Stem Material | Stem Length | Price (inc. VAT) | |
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| A | M4302-7807-6 | £195.40 | RFQ
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| B | M5602-7808-1 | £306.64 | |||||||||
| C | M5602-7808-6 | £321.64 | RFQ
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J| Style | Model | Float Length | Float Dia. | Operating Temp. | Mounting | Max. Voltage | Body Material | Height | Float Position | Price (inc. VAT) | |
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| A | 9037EG9 | £272.72 | |||||||||
| A | 9037EG8 | £448.24 | |||||||||
| B | 9037EW9 | £1,128.28 | |||||||||
| A | 9037EG10 | £485.74 | |||||||||
| C | 9036DR31C | £458.92 | |||||||||
| D | 9038CW33 | - | RFQ
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| C | 9036DW31C | - | RFQ
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| C | 9036DG2S12 | £137.44 | |||||||||
| C | 9036GG2 | £139.49 | |||||||||
| C | 9036DR31 | £497.04 | |||||||||
| E | 9036DG2 | £82.67 | |||||||||
| C | 9036GR1 | - | RFQ
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| F | 9036FG30 | £64.14 | |||||||||
| C | 9036GG2H | £186.28 | |||||||||
| C | 9036GW1 | £837.62 | RFQ
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| G | 9038CG36LZ20 | £574.44 | |||||||||
| C | 9036GW1H | £928.82 | |||||||||
| C | 9036DG2C | £152.92 | |||||||||
| H | 9036DW31 | £522.82 | |||||||||
| I | 9037HW33 | £635.34 | |||||||||
| I | 9037HG35 | £204.42 | |||||||||
| I | 9037HG37 | £204.42 | |||||||||
| I | 9037HG32L | £170.90 | |||||||||
| J | 9037HG36F3LZ20 | £156.35 | |||||||||
| I | 9037HG33Z20 | £208.34 |
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CD| Style | Model | Float Material | Float Length | Float Dia. | Body Material | Operating Temp. | Mounting | Max. Current | Stem Material | Price (inc. VAT) | |
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| A | M3326-NPT-NO | £43.00 | |||||||||
| B | M3326-NO | £32.24 | |||||||||
| C | M8000-NO | £19.87 | |||||||||
| D | M3827-2NO | £134.15 | |||||||||
| D | M3827-3NO | £135.43 |
| Model | Item | Price (inc. VAT) | |
|---|---|---|---|
| M5601 | CM7MYQ | £80.04 |
| Model | Item | Price (inc. VAT) | |
|---|---|---|---|
| VFL50-150S-3H | CV8CFR | £339.38 |
A normally open (NO) liquid level switch stays in the open state when the liquid level is below the set threshold and closes the circuit when the liquid level rises to the desired level. A normally closed (NC) switch operates oppositely, being in a closed state when the liquid level is below the threshold and opening the circuit when the liquid level reaches the set level.
Utilising multiple liquid level switches in the same tank provides redundancy and more precise level control. They can be wired in parallel or series, depending on the desired functionality.
Troubleshooting measures include checking electrical connections, verifying power supply, inspecting for damage or debris affecting switch operation and ensuring proper switch calibration.