Flameproof Instrument Enclosures / Explosion Proof Instrument Housing Manufacturer India

Available Product Variants

i) Flameproof Digital Indicator — 72mm glass panel
ii) Flameproof Digital Indicator — 1-inch display with 90×90mm glass window
iii) Flameproof Digital Controller — Single setpoint
iv) Flameproof Digital Controller — Dual setpoint
v) Flameproof Instrument Enclosure — Universal mount for any panel instrument
vi) Flameproof Instrument Panel Enclosure JB250 — Glass window 50×100mm / 90×90mm, with push buttons, lamps, membranes, pots and switches
vii) Flameproof Instrument Panel JB350 — 100×150mm window, dia 350×100/160mm depth
viii) Flameproof Instrument Panel — Dual glass windows 90×90 and 100×150mm, dia 400×160mm depth
ix) Flameproof Instrument Panel Enclosure — Large format, internal space 610×365×300mm
x) Flameproof Pipe Mount Enclosure — For larger displays on process piping
xi) Flameproof Thermocouple Head — Simplex/Duplex
Xii) Flameproof Special Application Enclosures — Custom designed to application requirement

Industries & Applications

Our flameproof instrument enclosures are deployed in oil & gas flow measurement stations, chemical plant reaction monitoring, pharmaceutical temperature and pressure indication in solvent zones, petrochemical process control rooms, distillery fermentation monitoring, fertiliser plant instrumentation, and offshore platform control systems. Any process instrumentation installed in an electrically classified (Zone 0, Zone 1, Zone 2) area requires a certified enclosure.

Why Choose Trimiti Electricals for Flameproof Instrument Enclosures?

• Widest range of glass window sizes from compact 72mm to large 600×425mm enclosures
• Pipe-mount, wall-mount, and panel-mount configurations for flexible installation
• In-built provisions for membrane keypads, potentiometers, and lamp indicators
• Thermocouple head enclosures for simplex and duplex sensor installations
• Custom enclosure design capability for non-standard instrument requirements
• Precision glass window seals prevent atmospheric contamination of instruments

Frequently Asked Questions

Q1. What is a flameproof instrument enclosure?

A flameproof instrument enclosure (Ex d) is a sealed explosion-proof housing that protects process instrumentation in hazardous areas while allowing the operator to read instrument displays through toughened glass windows and, in some designs, operate push buttons or keypads without opening the enclosure.

Q2. Can I operate the instrument controls without opening the flameproof enclosure?

Yes. Our instrument panel enclosures (JB250, JB350, and custom models) can be equipped with internal push buttons, membrane keypads, rotary pots, and selector switches accessible from outside without breaking the enclosure seal, maintaining the Ex d integrity.

Q3. What is a thermocouple head enclosure and where is it used?

A flameproof thermocouple head replaces the standard junction head on a thermocouple (type K, J, T etc.) installed in a hazardous area. It contains the terminal block that connects the thermocouple element to the extension cable, in a certified explosion proof housing.

Q4. What sizes of display windows are available on instrument enclosures?

We offer glass windows ranging from 72mm round display panels to 50×100mm, 90×90mm, 100×150mm, and dual-window configurations. Pipe-mount models accommodate larger digital displays. Custom window dimensions are available on request.

Q5. Can you design an enclosure for a specific make and model of instrument?

Yes. We specialise in custom-designed flameproof enclosures for specific instruments. Please provide the instrument dimensions, display size, cable entry requirements, and mounting arrangement, and our engineering team will design the enclosure accordingly.