PEGH Gas Line Heaters

Product Applications
  • Fuel gas
  • Natural gas
  • Industrial gases
  • Seal gas
  • Air
  • Biogas

The EXHEAT range of pre-engineered gas line heaters provides precise and accurate temperature control for gas applications. When coupled with an EXHEAT thyristor control panel, it is ensured that the process fluid is heated correctly and efficiently across all design conditions.

The heater is specifically designed to offer improved delivery times with reduced costs. Applying EXHEAT expertise to standardisation eliminates project engineering time and ensures materials can be offered from stock. 


  • Certified to ATEX, IECEx or CSA standards
  • Terminal box is certified IP66/67 or Type 4/4X
  • Temperature classifications T3 to T6
  • Up to 1159 kW
  • Elements are individually replaceable on site without the need for special tools
  • Optional anti-condensation heaters available


Certifications ATEX / IECEx EX logo II 2 G/D
Ex e IIC, T3 to T6 Gb, IP67
Ex d IIC, T3 to T6 Gb, IP66
Ex t IIIC, T85 to T200°C Db, IP66
CSA Class I, Division 2, Groups A, B, C, D; Temperature coded T3 to T6; Enclosure type 4 or 4X
Class I, Division 1, Groups A, B, C, D; Temperature coded T3 to T6, Enclosure type 4
CSA Ex d IIC; T3 to T6 Gb, IP66
Class I, Zone 1, AExd IIC; Temperature coded T3 to T6 Gb, IP66
CU TR (EAC), CNEx, CCOE, Inmetro, KGS
Vessel Design Codes ASME VIII Div 1
Vessel Materials Low temperature carbon steel
Connections rated Class 150 or 300
Elements Individual hairpin elements are manufactured from 80/20 NiCr resistance wire embedded within high purity compacted magnesium oxide powder; the element sheaths are corrosion / erosion resistant Incoloy 800 tubes; all elements are sealed using the EXHEAT double-sealing method to prevent moisture ingress
Element to Tubesheet Elements are sealed into their support plate (tubesheet) by ‘Bite’ type couplings; the bite couplings provide a 100% seal and are suitable for use in pressures exceeding 500 barg
The use of mechanical couplings allows for individual elements to be replaced at site using simple mechanical tooling
Internals Elements are supported in a segmental or rod type baffle assembly to prevent flow-induced vibration and hot spots, generally complying with TEMA standards
Correct baffle selection ensures that element temperature or pressure drop restrictions can be met
Terminal Box Manufactured from either mild steel or stainless steel, having un-drilled gland plates (Ex e) or BSP cable entries (Ex d)
Voltage Suitable for voltages up to 690V
Documentation Each EXHEAT PEGH Gas Line Heater will be provided with a full document dossier including: General Arrangement Drawing, Schematic Diagram, Material Test Certificates for pressure parts to EN10204 Type 3.1, Design Calculations (strength and thermal), Hazardous Area Certificates, IOM