An electric liquid level switch is a liquid level measuring switch that opens or closes the circuit when the liquid level reaches a particular point. You can use electric liquid level switches as a high-level or low-level control or an alarm system.

Some industries that use electric liquid level switches extensively are pharmaceutical, food, beverages, oil and gas, petrochemical and automotive industries.

Some important parameters you must consider before you buy an electric liquid level switch are:

1. Operating environment of the electric liquid level switch
2. Maximum AC and DC voltage rating of the electric liquid level switch
3. Corrosion compatibility of the electric liquid level switch material with the fluid flowing through the system
4. Expected life of the level switch

Action Steps
The best contacts and resources to help you get it done

Buy an electric liquid level switch from a reputable electric liquid level switches manufacturer

Once you understand your requirements, evaluate different electric liquid level switches available in the market.

I recommend: Ruelco, a reputable manufacturer of electric liquid level switches, offers two-way valve level switches. K-DYNE manufactures industrial electric liquid level switches for explosion proof applications. CVS Controls, an instrumentation products manufacturer, offers electric liquid level switches that have stainless steel or carbon steel bodies. Mallard, a division of Circor Energy, offers a range of level switch products.

Buy electric liquid level switches from an electric liquid level switches distributor or retailer

You can compare different electric liquid level switches based on the price and additional features at distributors and retailers' websites.

I recommend: iProcesSmart is an online distributor that offers electric liquid level switches from various manufacturers such as Erecta, Babbitt and Burkert. You can also find electric liquid level switches online at A-A Electric, a reputable electrical products distributor. BriceBarclay is another industrial instrument supplier where you can find electric liquid level switches from various manufacturers such as WellMark, Whitman, Apollo and Parker. MSC Industrial Direct is another industrial equipment retailer that supplies electric liquid level switches at attractive prices.

Buy a customized or specialty electric liquid level switch

If standard electric liquid level switches available in the market do not meet your application needs, opt for customized electric liquid level switches.

I recommend: Gems Sensors & Controls, a global manufacturer of level controlling devices, offers miniature electric liquid level switches. Thermotion is another reputable manufacturer that offers electric liquid level switches for custom applications such as high temperature and corrosion resistance.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Consult an expert for the proper installation of electric liquid level switches, to ensure accurate measurements.
• •  Use standard fittings and accessories for the efficient operation of your electric liquid level switches.