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Indirect Water Bath Heater

General:

This Indirect Water Bath Heater is specifically engineered for high-pressure oil and gas field applications, designed to heat sour gas and liquid media containing H₂S/CO₂. It effectively prevents hydrate formation and ensures stable downstream process performance. The unit operates on the indirect water bath heating principle—the burner heats the water bath medium inside the shell, and the hot water uniformly transfers heat to the process coils immersed in the bath, delivering a gentle, safe, and controllable heating process.​

Indirect-Water-Bath-Heater

Parameters:

  • Heating Capacity: 2 MMBTU/hr 

  • Design Pressure: 5000 psig

  • Design Temperature: -20 ~ 250 °F

  • Working Pressure (WP): 5000 psi 

  • Max. Gas Flow Rate: 50 MMSCFD 

  • Max. Liquid Flow Rate: 10,000 BPD 

  • Service Medium: Natural gas & liquid with H₂S / CO₂ presence 

Indirect-Water-Bath-Heater-china

Mechanical Features:

  • Coil Configuration: 10 upstream passes × 10 downstream passes, fabricated from 4" SCH 160 heavy-wall piping for long-term reliability in sour service environments

  • Shell Diameter: 85 inches, providing ample water bath volume for uniform heat transfer

  • Insulation: 50 mm (2") rockwool insulation with 0.7 mm aluminum cladding, minimizing heat loss

  • Connections: 3" Fig 1502 Female inlet (with chock valves) and 3" Fig 1502 Male outlet

Indirect-Water-Bath-Heater-manufacturer

Standard Instruments & Accessories:

  • Burner System: Dual-fuel burner (gas/oil) for flexible fuel supply options

  • Level Monitoring: Level gauge + level switch for safe bath level control

  • Temperature Indication: Temperature indicator (0–320 °F range)

  • Expansion System: Expansion tank with overflow line to accommodate thermal expansion

  • Exhaust System: 12" spark arrestor + chimney meeting emission requirements

  • Valves & Fittings: Full set of process valves and inlet chock valves

Indirect-Water-Bath-Heater-supplier

Design Codes & Standards:

  • API 12K (Indirect Fired Heaters for Oil and Gas Production)

  • ASME B31.3 (Process Piping)

  • NACE MR0175 (Materials for Sour Service Environments)

  • All pressure-containing components are selected in strict compliance with NACE MR0175, ensuring reliable performance and resistance to sulfide stress cracking (SSC) under H₂S/CO₂ corrosive conditions.

Indirect-Water-Bath-Heater-for-high-pressure-oil-and-gas

Typical Applications:

  • Hydrate Prevention: Pre-heating high-pressure well stream upstream of choke valves to prevent natural gas hydrate blockage

  • Wax Deposition Control: Heating waxy crude oil to ensure flow assurance in pipelines

  • Sour Gas Preheating: Upstream heating for gas treatment trains handling H₂S/CO₂-containing streams

  • Separation Efficiency Enhancement: Preheating feed streams to improve gas-liquid separation performance

  • For inquiries or custom-engineered solutions, please contact our sales engineers for detailed technical proposals. 

  •  Custom designs are available to meet specific field conditions and project requirements.

Indirect-Water-Bath-Heater-for-sale
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