Explosion Proof Instrumentation

-- Steady & Reliable Manufacturer --

Brief Description

Our Explosion Proof Instrumentation is specifically designed and certified for safe operation in hazardous classified locations, where flammable gases, vapors, or dust are present. Safety is paramount, and these devices adhere to strict international standards (e.g., ATEX, IECEx, UL).

In-depth Overview

In environments like oil refineries, chemical storage, or grain processing facilities, a small spark from electrical equipment can cause catastrophic explosions. Our explosion-proof (Ex d) instruments are housed in rugged enclosures strong enough to contain any internal explosion and prevent heat or sparks from igniting the external atmosphere. This includes specialized pressure gauges with solid front/blow-out back safety features, and pressure/temperature transmitters with intrinsically safe or flameproof certification to ensure maximum safety and compliance.

Specification

Parameter	Details
Protection Type	Explosion-Proof (Ex d) or Intrinsically Safe (Ex i)
Certifications	ATEX, IECEx, CQC (regional certifications available)
Hazardous Area Classification	Zone 1 / Zone 2 (Gas) and Zone 21 / Zone 22 (Dust)
Enclosure Material	Cast Aluminum or Stainless Steel 316
Electrical Connections	Sealed conduit fittings (NPT/Metric thread)
Safety Features (Gauges)	Solid Front, Blow-out Back, Laminated Safety Glass
Operating Temp. Code	T4 or T6 (depending on model)
Ingress Protection	Minimum IP66

Applications

Petrochemical Industry: Measuring pressure and temperature within processing units and storage tanks for hydrocarbons.
Oil and Gas Drilling Platforms: Essential safety equipment for continuous monitoring in highly volatile zones.
Pharmaceutical Solvent Production: Monitoring controlled environments where volatile organic compounds (VOCs) are handled.
Paint and Coating Manufacturing: Applications involving flammable liquids and vapors.

Key Advantages

Mandatory Safety Compliance: Ensures adherence to international safety regulations, crucial for project acceptance.
Contained Ignition: The robust housing prevents internal sparks from reaching the hazardous atmosphere.
Rugged and Reliable: Built with heavy-duty materials to withstand both the physical environment and potential internal events.
Global Certifications: We provide necessary documentation (ATEX/IECEx/etc.) for installation anywhere in the world.

Payment and Shipping

Due to the specialized nature and certification requirements of these instruments, lead times may vary; estimated delivery is provided upon quotation. We require payment via secure international bank transfer (T/T). Shipping documentation (including certificates of origin and specific hazardous area declarations) is meticulously prepared to ensure smooth customs clearance in all regulated markets.

Frequently Asked Questions

Q: What is the difference between "Explosion Proof" and "Intrinsically Safe"?
A: Explosion Proof (Ex d) contains the explosion within the enclosure. Intrinsically Safe (Ex i) limits the energy (voltage/current) to a level too low to ignite the hazardous atmosphere, preventing ignition from occurring in the first place.

Q: Which certification do I need for my region?
A: This depends on the project location. ATEX is mandatory for the European Union; IECEx is the widely accepted international standard; UL or FM are often required in North America. We supply instruments with the relevant certificates.

Q: Are the pressure gauges also certified?
A: Yes. While mechanical gauges don't carry the electrical certification, they are built with required safety features (e.g., solid baffle wall and blow-out back) to redirect media and pressure in case of Bourdon tube failure, enhancing operator safety in hazardous areas.

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Explosion Proof Instrumentation Manufacturers

Wuxi Huihua Special Instrumentation Co., Ltd. was established in December 2001, the registered capital is 5 million yuan, the existing staff of more than 50 small and medium-sized joint-stock enterprises.
The company specialises in the production of various types of special instruments, alternative to the localisation of imported instruments.To seismic pressure gauge, seismic electric contact pressure gauge, stainless steel pressure gauge, diaphragm corrosion-resistant pressure gauge, marine pressure gauge and other series as the main products. On the basis of field instruments, we have developed various kinds of pressure transmitters, pressure controllers, digital pressure gauges and so on. There are more than 30 series and 3000 specifications. Products are widely used in petroleum, chemical, paper, metallurgy, mining, chemical fibre, electric power, food, environmental protection, rubber and plastic, hydraulics and many other industries, and more than 2,000 domestic customers to establish a friendly relationship with the national large and medium-sized enterprises to establish a good partnership, won the majority of users praise, and set up a corporate brand image.