Limit Switch

Corrosion
Resistant

Leak Tight
Sealing

Automated
Operation

Low Maintenance
Long Life

Alis Valves is an Limit Switch Box Manufacturer is a valve position monitoring device used with pneumatic and electric actuated valves to provide accurate Open and Close position feedback. It features visual position indication, dry contact switches, and weatherproof or explosion-proof enclosures, making it ideal for automated valve control systems in industrial applications.

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Product Specifications and Overview

Function

Valve Position Feedback

Switch Type

Mechanical SPDT / Dry Contact / Proximity Sensor

Position Indication

Open & Close

Contact Rating

250 VAC, 5A (Standard) / As Required

Voltage

24 VDC / 110 VAC / 220 VAC (Depending on Switch)

Enclosure

Weatherproof IP67/IP68 / Explosion Proof

Explosion Proof

Ex d IIB T4 / Ex d IIC T6 (Optional)

Cable Entry

1/2" NPT(F) / M20 × 1.5

Visual Indicator

Open/Close Dome

Mounting Standard

NAMUR / VDI/VDE 3845

Ambient Temperature

-20°C to +80°C

Housing Material

Die Cast Aluminium / SS304 / Engineering Plastic

Compatibility

Pneumatic & Electric Actuators

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Industries Served

Cement

Engineered valve solutions tailored for critical Cement operating processes.

Chemical

Engineered valve solutions tailored for critical Chemical operating processes.

Data centres

Engineered valve solutions tailored for critical Data centres operating processes.

Fertilizer

Engineered valve solutions tailored for critical Fertilizer operating processes.

Applications

Ammonia

High-performance flow automation engineered for Ammonia operations.

CO₂

High-performance flow automation engineered for CO₂ operations.

Compressed Air

High-performance flow automation engineered for Compressed Air operations.

Cryogenic

High-performance flow automation engineered for Cryogenic operations.

Frequently Ask Questions

What is a Limit Switch Box used for?

A Limit Switch Box provides electrical feedback of a valve's fully open and fully closed positions, enabling remote monitoring and control in automated systems.

Can a Limit Switch Box be used in hazardous areas?

Yes. Explosion-proof models are available with certifications such as Ex d IIB T4 and Ex d IIC T6, making them suitable for hazardous industrial environments.

Who Is a Limit Switch Supplier in India?

Alis Valves supplies valve limit switches for industrial automation, suitable for pneumatic and electric actuators and various valve applications.

How does a Limit Switch Box work?

The rotating actuator shaft moves adjustable cams inside the box, which activate the internal switches when the valve reaches the open or closed position. These signals are sent to PLC, DCS, or SCADA systems.

Which valves are compatible with a Limit Switch Box?

It can be installed on ball valves, butterfly valves, plug valves, diaphragm valves, and other quarter-turn actuated valves using standard NAMUR mounting.

How To Choose a Limit Switch?

Consider actuator type, mounting arrangement, contact configuration, IP rating, electrical load, cable entry, and environmental conditions.