Float level switches

How to choose this product

A float level switch, or detector automatically monitors and controls the level of liquid in a container.

Applications

These devices can open a valve to add liquid to a container if the level falls below a certain point. If the level is too high, they also can actuate a pump to remove liquid.

Technologies

All the different types of switch include a float resting at the surface of the liquid. Vertical float movement opens or closes an electrical circuit via a mechanical, magnetic or inclinometer mechanism.

How to choose

Choice will depend on the liquid whose level is to be measured. Temperature, pressure, explosion risk and other environmental factors also should be considered.

Advantages

- Low cost
- Reliability
- Simple maintenance

Disadvantages

- Moving parts subject to breakdown

109 companies | 659 industrial products

Companies per page

GEMS SENSORS & CONTROLS LS-3 Series
Compact topmounted LS-3 Series GEMS SENSORS & CONTROLS

LS-3 Series Level Switch is a small size engineered plastics that is ideal for shallow tanks for a high volume and low cost use. It offers a high reliability,...

GEMS SENSORS & CONTROLS LS-7 Series
Electromechanical LS-7 Series GEMS SENSORS & CONTROLS

LS-7 Series - Type 5 - External Mounting Level Switch Small Size, Engineered Plastics...

GEMS SENSORS & CONTROLS LS-77700 Series
Stainless steel LS-77700 Series GEMS SENSORS & CONTROLS

LS-77700 Series Level Switch Bent Stem Switches Provide Greatest...

GEMS SENSORS & CONTROLS LS-800 Series
Multipoint magnetic LS-800 Series GEMS SENSORS & CONTROLS

LS-800 Series Level Switch Large Size – Alloys, The General Purpose Workhorse...

GEMS SENSORS & CONTROLS
GEMS SENSORS & CONTROLS

Gems Sensors, Inc. is a leading manufacturer of level switch products, pressure switch instruments, flow switch...

GEMS SENSORS & CONTROLS XM/XT- 800 Series
Float level sensor XM/XT- 800 Series GEMS SENSORS & CONTROLS

These compact transmitters feature the rugged durability of stainless steel or brass construction. The XM-800 series provides analog output, and can be combined with Gems Digital Bargraph Display and...

1 products VEGA TECHNIQUE
SKF Lubrication Systems Germany AG
For oil SKF Lubrication Systems Germany AG

The lubricant level switches allows the operator to read the lubricant level. It is a visual indicator in the form of an oil gauge glass that is installed in...

1 products ENDRESS HAUSER
ENDRESS HAUSER 135 mm, -20 ... +85 °C | Liquifloat T FTS20
135 mm, -20 ... +85 °C | Liquifloat T FTS20 ENDRESS HAUSER

Level Limit Switch Your benefits Reliable level limit detection in liquids Electrical...

WIKA Alexander Wiegand SE & Co. KG -196 - 300 °C, max. 100 bar | RSM
Magnetic -196 - 300 °C, max. 100 bar | RSM WIKA Alexander Wiegand SE & Co. KG

Applications of the float switch - Level measurement for almost all liquid media - Pump/level control and monitoring for defined filling levels - Chemical industry, petrochemical industry, natural gas,...

Parker Refrigeration & Air Conditioning
Magnetic Parker Refrigeration & Air Conditioning

LL SERIES REFRIGERANT FLOAT SWITCHES This float controlled, magnetically actuated, mechanically operated, HERMETICALLY SEALED switch assembly can maintain close control of liquid...

Telemecanique Sensors 8 - 39 oz | 9036 series
Electromechanical 8 - 39 oz | 9036 series Telemecanique Sensors

These line of reliable switches detect rising or falling liquid levels in open...

Telemecanique Sensors max. 50 psi | 9037 series
Electromechanical max. 50 psi | 9037 series Telemecanique Sensors

This line of reliable switches detects rising or falling liquid levels in open...

Telemecanique Sensors 11 - 20 oz | 9038 series
Electromechanical 11 - 20 oz | 9038 series Telemecanique Sensors

This line of reliable switches detects rising or falling liquid levels in open...

DANFOSS Refrigeration & Air Conditioning 1
Electromechanical 1", max. 28 bar | AKS 38 series DANFOSS Refrigeration & Air Conditioning

AKS 38 is an electro-mechanical float switch designed to provide a reliable, electro-mechanical response to liquid level changes. The simple and basic design...

6 products DWYER
DWYER FLOTECT®
FLOTECT® DWYER

Series 102 Flanged Chamber Type Level Control -- Operating Pressures to 300 PSIG Series 123 Boiler Water Level Control -- Heavy Duty, Cast Iron Chamber Series 391 Side Mounted-Chamber Type Level...

DWYER 500 series
Sidemounted 500 series DWYER

Adjustable deadband combined with direct 2-1/2" threaded or 2-1/2" flange mount makes the reliable, heavy duty 500 Series ideal for liquid level control in large or small tanks. Chambers are available...

DWYER F6 / F7 Horizontal
Broken finger F6 / F7 Horizontal DWYER

Series F6 & F7 Horizontal Mount Level Switches are designed to mount through the walls of tanks and other vessels. Internally mounted models F6-HPS-11, F6-MHS and F7-SS5 are secured to the wall of the...

DWYER 1241/1243/1244 series
Stainless steel 1241/1243/1244 series DWYER

The Series 1241/1243/1244 are Flanged Chamber designed and develop by DWYER as a float to help assist in providing reliable level measurement. Housed in...

DWYER 225/227/228 series
For hazardous areas 225/227/228 series DWYER

Adjustable deadband, flanged chamber and side mount are featured in the heavy duty reliable 225 series. A choice of four operating styles are...

DWYER 205/207/208 series
For hazardous areas 205/207/208 series DWYER

Is inherent in the design of the 205 series. The heavy duty welded carbon steel chamber provides a control to operate up to 1250 psi (86 bar) and process temperature up to 650°F (343°C), 400°F (205°C)...

Standex-Meder Electronics LS01
Magnetic LS01 Standex-Meder Electronics

Description Standard liquid level sensor. The sensor has to be mounted vertically for best results. Two versions are available: * PP (Polypropylene)...

Standex-Meder Electronics LS02
Magnetic LS02 Standex-Meder Electronics

LS02 Level Sensors The LS02 Series Liquid Level Sensors are...

Standex-Meder Electronics LS03
LS03 Standex-Meder Electronics

The LS03 Series Liquid Level Sensor is a compact standard level sensor used for detecting a single fluid level. This sensor has has built-in magnetic float...

Standex-Meder Electronics LS02
LS02 Standex-Meder Electronics

The LS02-S Series Liquid Level Sensors are a compact robust stainless steel version designed to withstand high pressure, harsh chemicals and temperatures...

Standex-Meder Electronics LS04
Magnetic LS04 Standex-Meder Electronics

The LS04 Series Liquid Level Sensors are a plastic low cost, customizable single or multi-point level...

Standex-Meder Electronics LS05
Multipoint magnetic LS05 Standex-Meder Electronics

The LS05 Series Liquid Level Sensors are a robust stainless steel, customizable single or multi-point level sensor...

Jacob - Kabelverschaubungen
Magnetic Jacob - Kabelverschaubungen

Probably, float switches are the most popular level monitoring devices. The clear and easily understandable function leads to increasing...

Jacob - Kabelverschaubungen
Float for level sensor Jacob - Kabelverschaubungen

In contrast to the standard, these floats can be mounted on all float switches with slide tube Ø8 mm. This may be required if the pressure or the medium density do not allow the implementation of...

Jacob - Kabelverschaubungen
Suction lance with magnetic Jacob - Kabelverschaubungen

This device consists of a compact float switch with separately suction pipe. The...

16 products Val.co srl
Val.co srl 1/8 - 3/8
Magnetic 1/8 - 3/8", 50 bar | SIMPLE Val.co srl

Standard items float technology - Materials, Brass, ST. Steel, PVC, PPL, PVDF -...

Val.co srl 1
Magnetic 1", 20 bar | SIMPLE - S1 Val.co srl

Standard float switch, one contact type - Brass stem and connetction, Spansil float - 1" thread...

Val.co srl 1
Magnetic 1", 20 bar | SIMPLE - M2 series Val.co srl

Standard float switch, two contacts type - Brass stem and connetction, Spansil float - 1"...

Val.co srl 1
Magnetic 1", 20 bar | SIMPLE - KIT.S1 Val.co srl

Float switch, N.1 contact self mounting kit - Brass stem and connetction, Spansil float -...

Val.co srl 1
Magnetic 1", 20 bar | SIMPLE - R1 Val.co srl

- Adjustable one contact float switch - St. Steel stem, Brass conection, Spansil float -...

Val.co srl 1/2 - 1
Sidemounted 1/2 - 1", 6 bar | SIMPLE - ML Val.co srl

- Float switch, one contact side mounting - Polyprpylene or PVDF materials -...

1 products AECO
AECO
Magnetic AECO

Magnetic level controls for liquids are made of a reed contact placed inside the shaft and an operating magnet...

IMB Industrielle Messtechnik 1 1/2 - 2
Stainless steel magnetic 1 1/2 - 2", -30 ... +150 °C, max. 4 MPa| SR10 IMB Industrielle Messtechnik

Simple to install practical and inexpensive solution maintenance-free...

IMB Industrielle Messtechnik 3/8 - 2
Stainless steel magnetic 3/8 - 2", -30 ... +150 °C, max. 4 MPa | SR11 IMB Industrielle Messtechnik

Simple to install practical and inexpensive solution maintenance-free...

IMB Industrielle Messtechnik 1 1/2 - 2
Stainless steel magnetic 1 1/2 - 2", -30 ... +100 °C, max. 4 MPa | SR12 IMB Industrielle Messtechnik

Simple to install practical and inexpensive solution maintenance-free...

IMB Industrielle Messtechnik 1 - 1 1/4
Mini magnetic 1 - 1 1/4", -30 ... +80 °C, max. 1 MPa | SR13 IMB Industrielle Messtechnik

Simple to install practical and inexpensive solution maintenance-free...

IMB Industrielle Messtechnik 1/8
Mini magnetic 1/8", -30 ... +80 °C, max. 1 MPa | SR14 IMB Industrielle Messtechnik

Simple to install practical and inexpensive solution maintenance-free...

Golden Mountain Enterprise IP67 | LS series
Magnetic IP67 | LS series Golden Mountain Enterprise

● Material: Wetted parts are available for SS304,SS316,PVC,PP,PVDF by requested. Multiple level point are available by requested...

Golden Mountain Enterprise -20 °C ... +150 °C | LT_201
Magnetic -20 °C ... +150 °C | LT_201 Golden Mountain Enterprise

Enclosure Housing:Weather proof IP65 Process Connection:1½"NPT male, thread type Material:Wetted parts & Housing...

Golden Mountain Enterprise max. +350 °C | LXT_207
Magnetic max. +350 °C | LXT_207 Golden Mountain Enterprise

Enclosure Housing: Explosion Proof- Ex d IIB + H2 T6, IP66 Process Connection Size: 1½" ~ 4" Flange type, or 1½" ~ 3" Thread type Flange Rating: JIS, ANSI, DIN available Thread Rating:...

Golden Mountain Enterprise IP65, max. 10 Kg/cm2 | LR series
IP65, max. 10 Kg/cm2 | LR series Golden Mountain Enterprise

General Prupose, IP65 Explosion Proof- EExdIICT6 Chemical Duty...

Golden Mountain Enterprise max. +200 °C | EDW_EDX_601
max. +200 °C | EDW_EDX_601 Golden Mountain Enterprise

Wetted Parts Material:SS316,SS304 available Housing Material:EDX- Aluminum alloy; EDW- SS316 or C.S with painting The Suitable...

Golden Mountain Enterprise 10 bar | SLS
10 bar | SLS Golden Mountain Enterprise

Connection Thread and Wetted Parts Material:Guide tube- SS316;...

5 products FineTek
FineTek IP65 | FC/FD series
Magnetic IP65 | FC/FD series FineTek

FC/FD Magnetic Float Level Switch : The single unit or multiple reed switch units arehoused tightly in stainless steel or engineeringplastic stem, and the permanent...

FineTek FC/FD series
Mini magnetic FC/FD series FineTek

FC/FD Mini Float Level Switch : When the magnetic field of permanent magnet inside the float...

FineTek FF series
Sidemounted FF series FineTek

FF Side Mounting Float Switch : Simple theory as liquid buoyancy is utilized for the main principle of this "FF" series....

FineTek IP68 | FA/FB
IP68 | FA/FB FineTek

FA/FB Cable Float Level Switch : FAC, FAP, FAR Type float switch make use of micro switch as contact component....

FineTek FG series
Float level sensor FG series FineTek

The "Magnet Float Level Indicator" is composed of the float and sensing rod (shown as below). As the float raised or lowered by liquid level, the sensing...

2 products UTECO ABEE
UTECO ABEE
Magnetic UTECO ABEE

Output Process Connection Distance Immersion length Material 2 relays 1 BSP 150mm 300m AISI 316Ti Specifications Material of wetted parts: Stainless...

UTECO ABEE MAGN series
Stainless steel magnetic MAGN series UTECO ABEE

Series MAGN: Level Switches-Magnetic float UTECO Magnetic float level, suitable for level indication of normal and explosive liquids and can be used for level control tasks Output Process Connection Cable...

Riels Instruments max. 5 mt, 100 bar | TOR Atex
max. 5 mt, 100 bar | TOR Atex Riels Instruments

The switches float level are indicated in the majority of industrial applications. They are used for a complete setup of the automatic management of tanks (also under pressure), tanks, boilers and for...

Riels Instruments max. 3 mt, 10 bar | RL/G1
Magnetic max. 3 mt, 10 bar | RL/G1 Riels Instruments

The level switch float dipping available with 1 or 2 control points can be used for dirty liquids, water, petroleum, oils, coolants and it tolerates the presence of ferrous metal particles because the...

Riels Instruments max. 1 mt, 120 °C, 10 bar | RL/G2
Magnetic max. 1 mt, 120 °C, 10 bar | RL/G2 Riels Instruments

The level switch is a level switch RL/G2 float suitable for high temperatures. It can be used for dirty liquids, water, petroleum, oils, coolants and it tolerates the presence of ferrous metal particles...

Riels Instruments max. 1 mt, 120 °C, 10 bar | RL/A
Stainless steel magnetic max. 1 mt, 120 °C, 10 bar | RL/A Riels Instruments

The float level switch RL / A is a suitable level switch for high temperatures and for all fluids compatible with stainless steel AISI 316. It can be used for dirty liquids, water, petroleum, oils, coolants...

Riels Instruments max. 1 mt, 200 °C | RL/T
Topmounted max. 1 mt, 200 °C | RL/T Riels Instruments

The float level switch series RL/T is suitable for high temperatures. It can be used for dirty liquids, water, petroleum, oils, coolants and tolerates the presence of ferrous metal particles also, as...

Riels Instruments max. 1 mt, 80 °C, 10 bar| RL/G1-L
Magnetic max. 1 mt, 80 °C, 10 bar| RL/G1-L Riels Instruments

The float level switch RL/G1-L is a level switch for use lateral very versatile that can be used for the control of the minimum or the maximum level and to control the minimum or maximum and more empty...

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Associated Terms

float level meters, float level indicators, float level gages, float level detectors, float level contactors

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