PESO / ATEX APPROVED FLAMEPROOF & WEATHERPROOF LIMIT SWITCH BOX
PESO and ATEX certified flameproof limit switch boxes for safe, accurate valve position monitoring in hazardous areas.
Flameproof & Weatherproof Limit Switch Box
Trusted Source for PESO / ATEX Flameproof & Weatherproof Switch Boxes
Concorde Valves & Automations is a trusted manufacturer and supplier of PESO and ATEX approved flameproof and weatherproof limit switch boxes in India, built for safe and reliable position monitoring in hazardous industrial environments. Our flameproof limit switch range is designed and tested as per international ATEX certified explosion proof limit switch standards and Indian PESO certified gas explosion proof limit switch norms, making it suitable for use in Zone 1, Zone 2, Zone 20, Zone 21 and Zone 22 hazardous areas.
Each limit switch box is built with an Ex d flameproof integral enclosure that contains any internal spark or arc, preventing ignition of surrounding explosive gases or dust. We also manufacture Exia intrinsically safe limit switch variants for applications requiring low-energy circuits, along with ATEX certified IIC and Ex db limit switch box configurations for Group IIC gas environments.
These ATEX approved flameproof limit switch boxes and PESO limit switches are widely used in oil & gas plants, chemical industries, refineries, power plants, and automation systems where explosion protection, dust ignition resistance, and environmental durability are critical requirements.
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Why Choose Concorde Valves & Automations?
Quality, certification and dependable supply that industrial buyers across India rely on.
PESO & ATEX Certified Products
Every limit switch box is tested and certified to international and Indian hazardous-area standards.
14+ Years Industry Experience
Extensive experience serving oil & gas, chemical and power generation plants with certified safety equipment.
Robust Flameproof Construction
Ex d rated enclosures contain internal sparks, preventing ignition of surrounding explosive atmospheres.
Reliable Performance in Hazardous Areas
Engineered for accurate position feedback in Zone 1, Zone 2, Zone 20, Zone 21 and Zone 22 areas.
Pan India Supply & Export Capability
Fast dispatch from our Mumbai facility to industrial hubs across India and overseas markets.
Technical Support & Custom Solutions
Dedicated engineering support to help select the right configuration for your hazardous zone.
Types of ATEX Approved Flameproof & Weatherproof Limit Switch Boxes
We manufacture PESO and ATEX approved limit switch boxes for various hazardous area classifications and mounting requirements.
ATEX Approved Flameproof Limit Switch Box
Built for Zone 1 and Zone 2 gas hazardous areas, preventing internal sparks from igniting external explosive atmospheres.
PESO Ex d Flameproof Integral Enclosure Limit Switch
Certified under Indian PESO norms for oil, gas, and petroleum installations requiring an Ex d rated integral terminal chamber.
ATEX Certified Dust Ignition Proof Limit Switch
Suitable for Zone 20, Zone 21 and Zone 22 areas with combustible dust hazards.
Exia Intrinsically Safe Limit Switch
Designed for low-power circuits in hazardous zones, available with line fault monitoring and NAMUR-compatible wiring.
Weatherproof Limit Switch Box
IP66/IP67/IP68 rated enclosure built to withstand dust, rain, and harsh outdoor environmental conditions.
ATEX Certified IIC Limit Switch
Rated for Group IIC gases including hydrogen, suitable for the most demanding explosion-risk environments.
How ATEX Approved Flameproof & Weatherproof Limit Switch Box Works
PESO and ATEX approved flameproof and weatherproof limit switch boxes are mounted on actuated valves to provide visual and electrical feedback of valve position. As the valve operates, an internal cam mechanism activates mechanical or proximity switches inside the enclosure, sending an open/closed signal to the control panel or DCS system.
In the flameproof Ex d design, the enclosure is built to contain any internal spark, arc, or hot surface within the housing, stopping it from reaching the surrounding explosive gas or dust atmosphere — this is the core principle behind every ATEX certified explosion proof limit switch and PESO certified flameproof limit switch we manufacture. For applications where even contained ignition energy must be eliminated, our Exia intrinsically safe limit switch range limits circuit energy below the threshold needed to cause ignition, making it suitable for Zone 0 and Zone 20 areas.
The weatherproof IP66/67/68 rated housing protects internal components from moisture, dust ingress, and corrosive atmospheres, which is essential for outdoor and offshore installations. As a trusted PESO / ATEX approved flameproof and weatherproof limit switch box manufacturer in Mumbai, we engineer every unit for long-term reliability, accurate signal feedback, and full compliance with hazardous area regulations.
Applications
PESO & ATEX approved limit switch boxes from Concorde Valves serve a broad range of hazardous-area industries.
Oil & Gas Exploration and Processing Plants
Chemical and Petrochemical Processing Facilities
Refineries Requiring ATEX Certified Zone 1 Equipment
Power Generation Plants
Hazardous Industrial Automation Systems
Offshore and Marine Platforms
Benefits & Technical Specifications
Key advantages and complete engineering specifications of our flameproof & weatherproof limit switch box.
Benefits
- Explosion Safety: Flameproof design ensures safe operation in hazardous and explosive environments.
- Weather Resistance: Built to withstand dust, rain, and harsh outdoor conditions.
- Accurate Position Feedback: Reliable valve position monitoring through mechanical or proximity switches.
- High Durability: Robust construction ensures long service life with reduced maintenance.
- Easy Integration: Compatible with existing automation and control systems.
- Regulatory Compliance: Meets PESO and ATEX certification standards for hazardous areas.
Technical Specifications
| Certification | PESO / ATEX Approved |
|---|---|
| Protection Type | Flameproof & Weatherproof |
| Enclosure Material | Aluminium Alloy / Stainless Steel |
| Ingress Protection | IP66 / IP67 |
| Switch Type | Mechanical / Proximity |
| Temperature Resistance | Suitable for High Temperature & Corrosive Environments |
| Mounting | NAMUR Standard Mounting |
| Cable Entries | Metric / NPT Options |
Quality Assurance & Testing
Every flameproof & weatherproof limit switch box passes a strict multi-step inspection process before dispatch to ensure reliable performance in demanding industrial environments.
Ingress Protection Testing
Confirms IP66/IP67 rated sealing against dust and water ingress before dispatch.
Flameproof Enclosure Testing
Validates Ex d enclosure integrity to contain internal sparks per ATEX/PESO standards.
Switch Function Testing
Checks accurate cam actuation and consistent open/closed signal feedback.
Dimensional & Mounting Checks
Confirms NAMUR standard mounting dimensions for direct fit on actuated valves.
Flameproof Limit Switch Box Supplier in India
Concorde Valves & Automations is a reliable supplier of PESO and ATEX approved flameproof limit switch boxes in India, offering Ex d, Exia, and dust ignition proof configurations suitable for a wide range of hazardous industrial applications. We provide competitive pricing along with dedicated technical support to help customers select the right solution for their specific operating conditions.
We also offer a wide range of automated valve solutions designed to work seamlessly with our PESO and ATEX approved limit switches, ensuring reliable position monitoring and efficient industrial automation across critical applications.
Call +91 9326435528What Our Clients Say
Trusted by procurement teams, EPC contractors and plant engineers across India.
“
We have been sourcing flameproof limit switch boxes from Concorde Valves & Automations for our refinery projects, and the quality and certification documentation have always been on point. Delivery timelines are reliable, which matters a lot for our project schedules.
“
The ATEX certified limit switches we received were exactly as specified, with proper IP66 rating for our outdoor installation. Their technical team also helped us choose the right configuration for our hazardous zone requirements.
“
Good experience working with Concorde Valves for PESO approved limit switch boxes. Competitive pricing and the products have performed well in our plant's hazardous areas without any issues.
Need a Quote on PESO / ATEX Flameproof Limit Switch Boxes?
Get competitive pricing on PESO & ATEX certified flameproof and weatherproof limit switch boxes. Fast dispatch with pan-India delivery and export support.
Frequently Asked Questions
Answers to common questions about flameproof & weatherproof limit switch box, materials, sizing and selection.
A flameproof limit switch box is an Ex d rated enclosure housing position-sensing switches on a valve actuator. It contains any internal spark or arc within the housing, preventing ignition of explosive gases in the surrounding atmosphere.
ATEX certification confirms that equipment meets European Union safety standards for use in potentially explosive atmospheres, covering gas zones, dust zones, gas groups, and temperature classes.
PESO (Petroleum and Explosives Safety Organisation) approval is a mandatory Indian certification confirming that equipment is safe for use in oil, gas, and petroleum handling facilities as per Indian regulations.
They are used in oil & gas plants, refineries, chemical and petrochemical industries, power plants, offshore platforms, and other hazardous industrial automation systems requiring valve position feedback.
Yes, our limit switch boxes are rated IP66, IP67, or IP68 depending on configuration, offering protection against dust, rain, humidity, and corrosive outdoor conditions.
Yes, we offer customized configurations including Ex d or Exia protection, mechanical or proximity switches, single/double pole contacts, and various mounting options to suit specific applications.
Industries handling flammable gases or combustible dust — including oil & gas, chemical processing, pharmaceuticals, power generation, and offshore operations — require ATEX and PESO certified equipment.
Flameproof protection prevents internal sparks from igniting explosive atmospheres, while weatherproof protection guards against dust, rain, and environmental damage. Our boxes combine both features.
Limit switch boxes are typically available in aluminium alloy or stainless steel, chosen based on durability, corrosion resistance, and the specific industrial environment.
The right choice depends on the hazardous zone classification, gas or dust group, ingress protection requirement, and switch type needed. Our technical team can help recommend a suitable configuration based on your application.
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