Temperature Transmitter & FLP Housing

Description

Overview

The Temperature Transmitter & FLP Housing is a flameproof-enclosed temperature transmitter assembly for hazardous-area installations, combining a signal-conditioning transmitter with a certified explosion-proof housing so the electronics can be installed directly in a flammable atmosphere zone rather than requiring a remote-mounted, purged, or intrinsically safe barrier arrangement.

Seven Star LLC supplies the Temperature Transmitter & FLP Housing across Oman and the GCC for petrochemical, refinery, and chemical processing customers whose hazardous-area classification requires flameproof-rated field electronics.

Operating Principle

The transmitter converts the raw signal from a connected RTD or thermocouple into a standardized 4–20 mA output, giving compatibility with essentially any industrial control system input without custom signal scaling on the receiving end.

The flameproof (FLP) housing surrounding the transmitter electronics is engineered so that if an internal spark or fault were to ignite gas that had entered the enclosure, the housing contains the explosion and cools the escaping gases below their ignition temperature before they reach the surrounding hazardous atmosphere – the core safety principle behind flameproof equipment design.

Engineering Design of the Temperature Transmitter & FLP Housing

The rugged housing construction protects the internal transmitter electronics from dust, moisture, and corrosive gases in addition to its explosion-containment function, and the assembly is tested to meet ATEX, IECEx, and other relevant explosion-protection standards for the zones it is rated to serve.

The compact design and flexible mounting options simplify installation alongside the temperature sensor, and the transmitter supports field calibration and diagnostics, letting maintenance teams verify and adjust the loop without removing the unit from its hazardous-area location.

Key Features

  • Flameproof (FLP) housing rated for hazardous-area installation
  • 4–20 mA standardized output for universal control system compatibility
  • Compatible with RTD and thermocouple sensor inputs
  • ATEX, IECEx, and other explosion-protection certifications
  • High resistance to EMI/RFI noise for stable signal output
  • Field calibration and diagnostics support
  • Protection against dust, moisture, and corrosive gases
  • Compact design with flexible mounting options

Industrial Applications

The Temperature Transmitter & FLP Housing is used across petrochemical plants, refineries, power stations, and marine and chemical processing facilities in Muscat, Sohar, Salalah, and the wider GCC wherever a hazardous-area classification requires flameproof-rated temperature measurement electronics.

Seven Star LLC supplies this assembly for new hazardous-area instrumentation and for replacing non-compliant or aging transmitter housings on existing installations that fall within an ATEX or IECEx zone.

Technical Specifications

Product Temperature Transmitter & FLP Housing
Output 4–20 mA
Sensor compatibility RTD, thermocouple
Enclosure rating Flameproof (FLP), ATEX/IECEx certified
Application Hazardous-area temperature measurement
Diagnostics Field calibration and diagnostics supported

Why Choose Seven Star LLC for This Flameproof Temperature Transmitter

Flameproof-rated equipment carries real compliance weight, so before confirming an order, Seven Star LLC verifies that the specific certification, ATEX or IECEx zone and gas group, matches your hazardous area classification rather than assuming a generic FLP rating is sufficient for every zone. We also confirm the sensor type, RTD or thermocouple, and its connection configuration against your existing installation, since a housing that fits mechanically but pairs with the wrong sensor input type can leave a measurement point non-functional despite looking correctly installed.

For petrochemical and refinery customers replacing aging or non-compliant transmitter housings across multiple measurement points, we help plan the replacement program around scheduled turnaround windows, confirming certification currency and calibration records for each unit before recommending a batch order. Where a facility is expanding hazardous-area instrumentation into a newly classified zone, we are glad to review the zone classification and existing transmitter inventory before recommending additional units, helping ensure every new installation is genuinely compliant rather than assumed to be.

Understanding Flameproof Protection in Practice

A flameproof enclosure does not prevent gas from entering the housing the way an intrinsically safe or purged system does; instead, it accepts that gas may enter and is engineered so that if an internal spark ignites it, the explosion is contained and the escaping gases are cooled below their ignition temperature before reaching the surrounding atmosphere. This distinction matters when specifying a replacement, since an FLP housing and an intrinsically safe barrier arrangement are not interchangeable protection concepts even when both are rated for the same hazardous area, and substituting one for the other without a proper engineering review can undermine the protection scheme the original design intended.

Because the flameproof joint tolerances on the housing are a certified, physically machined feature rather than a configurable setting, any damage to the enclosure’s mating surfaces, even minor corrosion or a scratch from careless handling, can compromise its certification even though the unit still looks intact from the outside. We advise customers to inspect housings on arrival and during periodic maintenance for this reason, and we can help source a recertified or replacement unit quickly when a housing’s flameproof joint integrity is ever in doubt.

Supporting Hazardous-Area Instrumentation Across Oman and the GCC

Seven Star LLC coordinates directly with manufacturers on documentation, test certificates, and lead times for flameproof-rated transmitter assemblies, so petrochemical and refinery customers are not left without the compliance paperwork their hazardous-area installation and any subsequent audit will require. We provide datasheets, certification copies, and calibration guidance on request, helping engineering and instrumentation teams commission these measurement points correctly and with full documentation on the first attempt.

Request a Quote for Temperature Transmitter & FLP Housing

Contact Seven Star LLC to specify a Temperature Transmitter & FLP Housing for your hazardous-area temperature measurement point in Oman and the GCC.

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About brand

This page groups the items Seven Star LLC lists without a manufacturer brand: parts with no maker's name on the nameplate, or parts that were requested by description, drawing or part number only. The listings are mixed. They include panel voltmeters, a temperature transmitter with flameproof housing, a solenoid valve, an industrial speed sensor and an inspection kit for a screw compressor.

Buyers in Oman can send us requests of this kind for identification and sourcing.

What is listed under OEM (Unbranded)

  • Panel instruments: flush-mounting AC voltmeters and a digital temperature controller
  • Field devices: a temperature transmitter with FLP housing, a speed sensor, a solenoid valve
  • Machinery items: an annual inspection kit for a Howden WRV(H) 204 compressor and a mobile water filtration system
  • Electronics: a control card and a portable power unit

Identification comes first

With no brand to rely on, the specification is the only definition of the part. Our first step is to find out who made the original, using the part number, the markings and the equipment it came from. When the maker can be identified, we quote the item under that maker's name and type code. When it cannot, we quote strictly against the data you supplied and say so in the offer. We do not present an unidentified part as equal to a branded one.

Sending an unbranded part request: what we need

Photos of the part and of every label or stamp on it are worth more than a long description. Add the part number, the main dimensions, and the electrical data: supply voltage, signal type and measuring range. For valves and sensors give the thread or process connection and the material. For items used in a hazardous area, send the marking shown on the housing. For machinery kits, give the machine model, mark and serial number. Plants elsewhere in the GCC can send the same data.

Frequently Asked Questions

What does FLP housing mean?
FLP stands for flameproof – an enclosure designed so that if an internal spark ignites gas inside it, the housing contains the explosion and cools the escaping gases below their ignition temperature before reaching the surrounding hazardous atmosphere.
What certifications does this assembly carry?
It is tested to meet ATEX, IECEx, and other relevant explosion-protection standards for the hazardous-area zones it is rated to serve.
What output signal does the transmitter provide?
A standardized 4-20 mA output, compatible with essentially any industrial control system input.
What sensor types can be connected?
RTDs and thermocouples are both supported.
Does Seven Star LLC supply hazardous-area temperature instrumentation?
Yes, Seven Star LLC supplies the Temperature Transmitter & FLP Housing and related hazardous-area instrumentation across Oman and the GCC.