Products · Flare
To establish the project design basis for “Molecular Seals”, confirm “Flare gas, purge and seal pressure drop” and its inputs: Define purge composition/flow, service pressure/temperature, allowable pressure drop, flow direction and seal/flashback-prevention duty from the flare basis. 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 Molecular Seals concentrates on process guarantees, operating envelope, equipment sizing, materials, control and safeguarding, utility demand, maintainability, modular interfaces and transport or site constraints. 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 Molecular Seals is defined from service data, design conditions, and battery limits. For this equipment, Flare gas, purge and seal pressure drop and Flow path and seal internals 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 dimensional envelope below comes from one manufacturer product sheet. It describes equipment geometry, not purge rate, flashback guarantee, or universal seal performance.
| Parameter | Published value | Reference basis | Applicability / limit |
|---|---|---|---|
| Nominal diameter range | 4–84 in | Published nominal size range for one molecular-seal product family. | Nominal size is not the actual outside diameter; confirm drawing, mating flare-tip/stack interface, and structural loads. |
| Actual diameter range | 12–190 in | Published actual-diameter range in the same product sheet. | Multiple sizes and configurations span the range; it is not one model or a pressure/flow rating. |
| Published seal length | 6–20 ft | Published product-family length range. | Confirm stack location, tip connection, drainage, thermal expansion, lifting, and access in the project layout. |
| Published construction options | Carbon steel or stainless steel; 150-lb ANSI flanges | Options listed on the product sheet. | Material grade, corrosion allowance, flange class, design pressure/temperature, and jurisdictional registration must be selected for service. |
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.
