PowerDe lists working steam pressure for only one machine in the Cleaning Equipment Series. The Fixed Steam Cleaning Machine PowerDe HW02 Specification table gives 160° steam temperature and 0.8 MPa vapor pressure. The driving-style and hand-pushed models in the same series publish dimensions, heating power, tank volume and cleaning modes, but no pressure row at all. Before you put a number into a purchase order, here is how a buyer checks a published specification and which questions separate a real figure from a borrowed one.
The steps below are the ones we would follow ourselves when a purchaser asks what “published specification” means on a machine catalogue, and which values still have to be confirmed in writing.
What counts as a published specification
A published specification is a value printed in the Specification table of a product page, on the domain and in the language you are buying from. In the powerde.net English catalogue, that table sits below the Overview, characteristic and Appearance sections of each product page. Values in the Overview prose, in a blog post or in a sales e-mail are supporting material. They are not the same thing as a line in the Specification table, and they are much harder to trace back once an order is placed.
For the HW02, the table records steam temperature 160°, vapor pressure 0.8 MPa, heating power 6 kW, an 80 L tank in SUS304, a tap-water inlet with a 4-point internal-tooth joint (1/2 inch), dry steam and wet steam modes with a vacuum cleaner, and 220 V working voltage. Note the wording: the page writes “vapor pressure”, not “working pressure”. That difference matters, and it comes back below.
Which questions you should be able to answer first
Before comparing machines, write down the duty you are actually buying for. A fleet operation has its own list: the surfaces (painted panels, cab interior, engine bay, wheels and chassis rails, workshop floor), the soil (road film, brake dust, diesel film, grease around drivetrain parts), the number of vehicles per shift and the minutes allowed per vehicle, and the utility you can supply at the wash bay, including socket rating, water inlet and drainage.
Then put three questions to the supplier in writing, and read the answers against the published table:
- Which exact model, with the model string as printed on the page, is being quoted for this duty?
- What steam pressure and temperature does that model deliver, and is the value measured at the boiler, at the pump, or at the nozzle after the lance and hose?
- Where is that value documented, and can the document be sent with the offer?
The HW02 page describes vehicle exterior cleaning at fuelling stations and parking lots, interior vacuuming and disinfection, and engine-compartment cleaning. For that duty the published figures describe a machine built for it. For a fleet duty with vehicles per shift and a cycle-time target, the same page does not publish throughput, so ask how many vehicles per hour the supplier expects with this machine, with what lance and nozzle set, and whether the 80 L tank and the tap-water inlet cover that volume without a refill stop.
Step 1: Match the model string to the product page
Model names in this catalogue are not clean identifiers, so start with the URL. The page titled Fixed Steam Cleaning Machine PowerDe HW03 carries “HW03” in the title and “PowerDeHMW3 (220V)” in the Overview. Its Specification block repeats the same dimensions, 4.5 kW heating power and 50 L tank as Hand Pushed Steam Cleaning Machine PowerDe HMW3 (without battery), and the line that separates them is the power supply: 220 V on one page, a 48 V battery on the other.
Record the product URL and the model string exactly as printed. A purchase order that says only “HMW3” can be filled with a battery machine or a mains machine. If a name and a specification block disagree, send the disagreement back to the supplier and ask which one is correct. A supplier who will not settle that in writing will not settle harder questions about pressure, cycle time or spares later.
Step 2: Read the units and the wording
0.8 MPa is about 8 bar or roughly 116 psi. If your team or a local reseller works in bar or psi, write the conversion beside the original figure rather than replacing it, so the supplier’s own unit stays on the record.
Then ask what the figure is measured at. Boiler pressure, pump discharge pressure and nozzle pressure are three different numbers, and the drop between boiler and nozzle through a long hose and a lance is normally large. The same applies to the 160° value: the table does not say whether that is steam generation temperature or temperature delivered at the nozzle, and steam cools once it leaves the machine. Ask for the number at the nozzle, because that is the number doing the work on a dirty panel.
Step 3: Do not borrow a number from a similar machine
The Driving Style Steam Cleaning Machine PowerDe PWD01 (including battery) adds a hot-water mode to dry and wet steam, runs on a 48 V mobile battery, and publishes L2500 × W900 × H1050 mm, 4.5 kW heating power and an 80 L clean water tank. It also lists a vacuum cleaner with a flat nozzle and a sewage tank. It publishes no pressure row and no temperature row.
If a quotation offers a mobile machine for a fleet yard and quotes 0.8 MPa because that figure appears elsewhere in the catalogue, you are comparing against a number that machine’s page does not publish. Ask what steam pressure this exact model produces and where that value is documented. If the reply is “same as the other model”, treat it as unconfirmed and ask for it in the offer.
For yard work, also ask which model the supplier expects to move between wash bays and how it is moved. The PWD01 is listed as an automatic mobile machine and is nearly 2.5 m long, which decides whether it fits the space you have, while the hand-pushed HMW3 is a different footprint and a different power supply. Compare footprints, tank volume and power source line by line; those are the rows the catalogue actually publishes for both.
Step 4: Ask for the documentation behind the number
- A datasheet or drawing carrying the pressure value with the model string from your order on it.
- The pressure-relief and safety devices fitted, and the setting of the relief valve.
- Protections item by item. The HW02 page lists leakage protection, short-circuit protection, high-temperature protection, high-voltage protection, water-shortage protection and high-voltage explosion protection. Ask for the list, not a count.
- The acceptance test both sides sign: what you measure on arrival, with what instrument, and what reading passes.
- Consumables and wear parts for the nozzle, hose and seals, with the part names as the factory writes them.
The catalogue offers machine development and testing work alongside the equipment, including hardware testing and customised equipment work, so the first two items above should be obtainable from the manufacturer. The PowerDe cleaning equipment series is where each product page, and therefore each published specification, begins.
Step 5: Move the number into the contract
Put three items in the proforma invoice or contract: the exact model string with the product URL, the steam pressure and temperature with units and measurement point, and the acceptance test that confirms them. A specification that never reaches the contract is a marketing line, and the buyer carries the difference.
Keep a dated copy of the product page you quoted from. Catalogue tables get revised, and the archived page is what settles an argument about what was published at the time of purchase.
To check the published figures against a fleet duty, send the surface list, soil type, vehicles per shift and minutes per vehicle to PowerDe sales at sales@powerde.net, and ask for a reply with the datasheet for the exact model, including where the steam pressure is measured. If a page you are reading has no pressure row, that is not a gap to fill by assumption; it is a question to put in writing before the order is placed.
