Products · Fired Equipment & Process Heaters
To establish the project design basis for “Line Heaters”, confirm “Line flow and outlet conditions” and its inputs: Record fluid flow and properties, inlet pressure/temperature, required outlet temperature, allowable pressure drop and load variation. Final values, supply limits and acceptance criteria are recorded in approved engineering documents; no generic capacity or catalogue guarantee is assumed.
From project definition to delivery
Engineering of Line Heaters concentrates on required heat duty, bath temperature, fire-tube heat flux, process-coil pressure drop, burner turndown, freeze protection, expansion and low-level safeguarding. The selected configuration is verified against normal, minimum, start-up, shutdown and credible upset cases, then checked for operability, maintainability, energy use, process safety and site interfaces before the design is frozen.
The design basis for Line Heaters is defined from service data, design conditions, and battery limits. For this equipment, Line flow and outlet conditions and Fuel and process conditions must be completed in the datasheet and design documents; performance values and guarantees are set only after the project basis is approved.
Materials, corrosion allowance, sour-service requirements, piping classes, nozzle design, insulation, coating, supports and maintenance access are coordinated with the actual process conditions and project code hierarchy.
Control philosophy, alarms and trips, cause-and-effect logic, interlocks, start-up and shutdown sequences, safe depressurization and operator access are developed consistently from the P&IDs through functional testing.
Battery limits, tie-in points, structural loads, cabling, instrumentation, drains, vents, access routes, lifting envelopes and shipping constraints are controlled through coordinated models and interface drawings.
From project definition to delivery
Proposal quality depends on complete input data and an explicit acceptance basis. The following lists provide a practical starting point and are completed during technical clarification.
Technical Datasheet
The duty, body-size and coil-pressure figures are published line-heater examples. They span different models and suppliers and do not define a single combined design envelope.
| Parameter | Published value | Reference basis | Applicability / limit |
|---|---|---|---|
| Standard-series heater duty | 75,000 Btu/h–4 MMBtu/h | Published standard-series range in a manufacturer catalogue for indirect natural-gas line heaters. | Selected heater size and duty depend on flow, inlet pressure/temperature, choke pressure drop and hydrate margin. |
| Custom heater duty / frame size example | Up to 15 MMBtu/h; up to 120 in OD | Published custom line-heater offer across project-specific layouts. | Custom limit is not a standard series rating; shipping, burner, coil and pressure-boundary constraints govern. |
| Published process-coil pressure span | 50–10,000 psi | Published options for a separate coiled-heater product line. | Pressure depends on coil model and code design; do not pair the maximum pressure automatically with maximum heater duty. |
Delham Engineering
Send the available process data, battery limits and expected document list for a technical proposal. The engineering team will identify missing information through a structured clarification register.
