DIRECT ANSWERFirst decide whether the enquiry is for a pressure tank, a tank-centred equipment package, or support for a station project. A tank quote normally centres on the pressure vessel and agreed attachments. A package may add unloading, transfer, vaporization, regulation, instruments and skid piping. A station scope must also assign plot-plan, civil, utilities, field installation, commissioning and local-approval responsibilities.
Scope comparison
Mark design, supply, installation, inspection and acceptance separately. The word complete is not a responsibility matrix, and an included item must still identify its actual manufacturer or supplier and interface.
| Scope item | Single tank | Equipment package | Station support |
|---|---|---|---|
| Pressure vessel | Normally included with agreed attachments | Included | Included |
| Unloading and transfer | Plant interface only unless listed | Pumps/compressors, valves and skid piping by list | Package and field piping responsibilities separated |
| Vaporization/regulation/metering | Not automatically included | Specified against demand and performance boundary | Connected to station utilities, field piping and control |
| Instrumentation/control | Vessel accessories by list | Skid instruments, interlocks and local control | Station power, remote signals and fire/gas interfaces assigned |
| Civil/installation/commissioning | Normally site responsibility | Outside-skid work separately agreed | Plot plan, foundations, installation, inspection, commissioning and permits assigned line by line |
RFQ inputs that move an item between scope columns
Site conditions, storage scale, unloading method, liquid or gas demand, utilities and protection requirements change the package. Huawang can review self-manufactured pressure equipment and coordinated supply, but specialist equipment and field work are not automatically described as Huawang self-manufacture.
- LPG composition, storage capacity, tank count and aboveground/buried arrangement
- Vehicle interface, unloading method and operating cycle
- Liquid transfer or gas demand, peak flow, vaporization and delivery pressure
- Instruments, control, interlocks, utilities and remote-signal boundary
- Civil works, installation, inspection, commissioning and local approval responsibility
Conditions to confirm for the project
- Medium composition, capacity, quantity and duty
- Tank-only, package or station-support boundary
- Unloading, transfer, vaporization and regulation
- Instrumentation, control and utility interfaces
- Field work, approval, commissioning and acceptance responsibility
Relevant manufacturing capability
- LPG pressure-tank batch-fabrication review
- Package interfaces and specialist-supply coordination
- Inspection, documentation, shipping and site-handover coordination
Key notes
- Do not use complete station to hide missing scope lines.
- Specialist supply source and quality responsibility must be verifiable.
- Layout, separation distance and local approval remain project and jurisdictional matters.