DIRECT ANSWERStart with planned daily and hourly filling demand, cylinder sizes and valve connections, net fill mass per cylinder, shifts and the number of filling stations. Then reconcile tank volume and quantity, refill frequency, road-tanker unloading conditions and expansion stages. An LPG-service unloading compressor is included only when the selected unloading method needs it. A hydrocarbon/liquid pump transfers LPG from storage to the filling manifold. Instrument air, where pneumatic devices require it, is a separate utility. Vaporized gas supply and vehicle refuelling are not the default duties of this package.
Use five input groups to define the equipment list
Provide a duty sheet covering inventory, refill, filling demand, cylinder details and site conditions. Unknown values may remain open so that we can clarify the equipment configuration with you.
| Selection input | Information to provide | Equipment-list impact |
|---|---|---|
| Inventory and refill | Volume and quantity per tank, refill frequency, minimum remaining stock and expansion stages | Defines one/multiple tanks, unloading interfaces, future tie-ins and changeover needs |
| Filling demand | Planned daily/hourly quantity, shifts, peak duration and units | Affects the pump duty, station arrangement, scales and controls |
| Cylinder conditions | Cylinder sizes, valve connection, net fill mass and available samples or drawings | Defines filling connectors, weighing requirements and operating interfaces |
| Unloading conditions | Road-tanker type, interfaces, time window, existing pump/compressor and operating method | Determines whether an LPG unloading compressor and unloading valves are required |
| Transport and site | Maximum shipping envelope/weight, lifting, foundations, field piping, power and instrument air | Defines one skid, separate skids, transport splits and site-connection scope |
Select the unloading compressor, liquid pump and instrument air separately
The LPG unloading compressor serves the selected road-tanker unloading method, the liquid pump feeds the filling manifold, and instrument air serves pneumatic devices. The order schedule confirms each maker, performance responsibility, protection and documents.
| Equipment or utility | Duty | When included | What it does not replace |
|---|---|---|---|
| LPG-service unloading compressor | Provides the LPG-side pressure difference or vapour-recovery duty for a selected road-tanker unloading method | Only when required by the tanker, unloading method, interfaces and operating procedure | Does not replace the cylinder-filling liquid pump and is not an instrument-air compressor |
| Hydrocarbon/liquid transfer pump | Transfers liquid LPG from the tank to the filling manifold, with recycle and protection where required | Selected from filling flow, inlet conditions, piping loss and standby needs | Does not supply instrument air and does not by itself define the road-tanker unloading method |
| Instrument air | Supplies clean utility air to pneumatic valves or actuators | Included only when pneumatic devices need it and no suitable site utility is available | Does not contact or transfer LPG |
Choose one skid, separate skids or transport modules
A compact project may evaluate the tank and filling equipment on one skid. Weight, envelope, maintenance access, safety layout or transport limits may require separate skids. Separate modules do not reduce the function; they divide storage, unloading/pumping, filling and auxiliary equipment into transportable units with controlled interfaces.
- One skid: reduces field mechanical assembly only when equipment, transport, maintenance and project design allow it
- Separate skids: tank, pump/valve and filling units become transportable modules connected from controlled interface drawings
- Multiple tanks: shared or dedicated equipment follows refill, continuity, changeover and staged-expansion requirements
- Split transport: freeze shipping envelope and weight, centre of gravity, lifting points, loose items and the site-restoration list
Separate factory preassembly from site handover
The agreed skid frame, supports, equipment, skid piping, electrical/instrument assembly and checks may be completed in the factory within practical transport limits. Foundations, field piping, power, earthing, instrument air, fire protection, separation distances, inspection, commissioning and local approvals still need assigned responsible parties.
- Identify Huawang fabrication, specialist sourcing, joint manufacture or integration for every order line
- Each equipment item retains its actual manufacturer documents and agreed inspection and performance responsibilities
- Define field connections and integrated start-up in a written responsibility matrix
- The competent authorities and responsible project parties confirm local approvals, layout and safety requirements
Conditions to confirm for the project
- LPG composition, tank volume/quantity and refill frequency
- Daily/hourly filling demand, cylinder sizes, valve connection and net fill mass
- Road-tanker unloading method, existing equipment and interfaces
- Number of stations, manual/semi-automatic operation and check-weighing/leak-testing/conveying needs
- Power, instrument air, site, transport/handling and site-service boundaries
Relevant manufacturing capability
- LPG pressure-tank manufacturability review
- Specialist sourcing and integration of pumps, scales, valves, instruments and controls
- Skid frame, piping, E&I preassembly, inspection, packing and delivery coordination
Key notes
- Liquid-phase cylinder filling, vaporized gas supply and vehicle refuelling are different duties.
- Equipment models, filling capacity and price depend on cylinder specifications, demand and project conditions. The responsible project parties confirm local approval requirements.
- The unloading compressor serves road-tanker unloading, the liquid pump supplies filling stations, and instrument air serves pneumatic devices.
- The equipment composition diagram supports purchasing discussions; confirmed project drawings govern process, layout and safety design.