Introduction
The thermometer is, alongside the pressure gauge, the second basic monitoring instrument of a silo trailer’s pneumatic system. During discharge, the bulk material — PE/PP granulate or another industrial powder — is conveyed by a stream of compressed air, which heats up as the compressor works. The gauge shows pressure, the thermometer temperature, and together the two parameters describe the state of the pneumatic line in operation. Across the whole network of brands we service, the thermometer performs the same protective function, regardless of who built the tank.
That is why we treat thermometers as a universal item for a mixed fleet: two case diameters and two temperature ranges, matched to the working conditions of the specific trailer rather than to the brand name. A stainless steel case is the standard that works across all the designs we service. This approach lets workshops and fleets running trailers from several manufacturers — including food-grade versions with elevated cleanliness requirements — stock up in one place.
Specification
A thermometer in a stainless steel case, in two diameters and two temperature ranges.
| Parameter | Value |
|---|---|
| Type | thermometer |
| Case | stainless steel |
| Diameters | 63 mm, 100 mm |
| Temperature range | 0-200°C or 0-250°C |
Selection by diameter and range:
| Diameter (mm) | Temperature range |
|---|---|
| 63 | 0-200°C or 0-250°C |
| 100 | 0-200°C or 0-250°C |
The stainless steel case ensures durability in the harsh conditions of bulk material transport. The two temperature ranges allow the reading resolution to be matched to the actual working band of the given system: 0-200°C gives a denser scale in typical conditions, while 0-250°C provides headroom where the air temperature can be higher.
Brand compatibility
A thermometer is a universal instrument, selected by parameters rather than brand — so one offering covers many manufacturers:
- Spitzer (SF/SK) — air temperature monitoring in the pneumatic line of SF and SK series aluminium trailers.
- Feldbinder (EUT/KIP) — temperature monitoring during the pneumatic discharge of the horizontal EUT tank (important in food-grade versions) and the pressurised KIP.
- Kässbohrer (K.SSK/K.SSL) — temperature monitoring in the discharge system.
- Other brands — wherever the discharge air can heat up, a 63/100 mm thermometer fits once the range and mounting arrangement are matched.
Selection comes down to matching the case diameter (63 or 100 mm) and the temperature range (0-200°C or 0-250°C) to the working conditions and the way the instrument is fitted. The thermometer is installed at the temperature measuring point of the pneumatic line, most often next to the pressure gauge. Where the temperature stays in the lower band, the 0-200°C range is better; in systems with a harder-working compressor, 0-250°C is safer, with headroom above the expected maximum.
Chorula warehouse
We stock thermometers at our warehouse in Chorula near Opole (4 km from the A4 motorway, approx. 180 km from the German border). The popular 63 and 100 mm diameters in the 0-200°C and 0-250°C ranges are usually available off the shelf, while less typical executions come via direct supply. We ship by courier across Poland, the European Union and the DACH market, and handle grouped orders together with pressure gauges and sight glasses. To match the diameter and range to your system — ask for a quote.
Selecting thermometers for mixed-brand fleets
A carrier with a fleet made up of trailers from several manufacturers rarely needs a separate “per-brand” thermometer — in practice what decides is the measuring point and the expected air temperature, and these follow from the compressor setup, not the logo on the tank. In Spitzer SF/SK aluminium designs the measuring point usually sits alongside the pressure gauge at the distributor, so what counts most is readability from the operator’s position; there the larger 100 mm dial is often chosen. In Feldbinder EUT horizontal tanks, especially in food-grade versions, headroom in the measuring range tends to matter more, because the heating of the discharge air affects the product — hence the leaning towards the 0-250°C variant. On Kässbohrer K.SSK/K.SSL silo trailers the selection runs the same way: the same type of instrument goes in once the connection arrangement and range are matched to the character of the given line’s work.
The conclusion for a mixed fleet is that a single, well-chosen range of 63/100 mm thermometers in two ranges serves all these designs in parallel, without splitting procurement by brand. The difference between vehicles comes down to two decisions — diameter and range — not to separate catalogues.
The role of the central warehouse in the network
The central warehouse in Chorula simplifies the management of monitoring instruments where trailers from different manufacturers work side by side. Instead of running separate supply channels for each brand, a fleet sources thermometers from a single point, and one enquiry can cover several different designs at once. The location by the A4 junction shortens delivery times both deep into the country and to markets across the EU, and the option of grouped orders with pressure gauges and sight glasses allows the complete set of pneumatic-line monitoring instruments to be closed in a single shipment.
What to watch for across brands
- Readability versus tight installation — in a densely built-up frame (typical of aluminium series) the 63 mm choice matters; where reading from a distance counts, 100 mm is chosen.
- Range headroom with sensitive cargoes — on food-grade trailers the 0-250°C range is sensible, giving a margin above the expected maximum.
- Consistency with the pressure gauge — regardless of brand, the thermometer is chosen to form a set with the pressure gauge at the same measuring point, making it easier to read both parameters at once.
Specialist portals
More detailed guidance on matching thermometers to specific brands is available on our specialist portals: Spitzer and Feldbinder.
Related categories
- Glycerine pressure gauges
- Sight glasses
- Valves
- Flange gaskets
- Spare parts catalogue
- PHS Magnum silo trailer service
Author: Aleksy Pasternak — Managing Partner at PHS Magnum, 20 years in the industry, internal auditor ISO 9001:2015 (DEKRA).
