Short answer
The catalog pressure of a PVC hose is meaningful together with the temperature condition stated in the catalog. For hotter operation, the permissible pressure or vacuum must be taken from the derating table of the product concerned or from the manufacturer's written assessment.
Technical explanation
Temperature affects the mechanical behavior of the hose material and the performance of the assembly. Ambient temperature and fluid temperature may not be the same; contact with a hot surface can create a local load. Flexibility in cold conditions is also evaluated separately. It is not correct to apply a single PVC derating factor to all formulations, wall constructions and diameters. If the manufacturer defines fluid and temperature limits together, they must not be exceeded individually.
Topic-specific checkpoints
| Item | Description |
|---|---|
| Reference condition | Temperature of the catalog value |
| Maximum condition | Including process and cleaning |
| Local contact | Hot surfaces and radiant heat |
| Derating | Only verified data for the same product |
How is it assessed in practice?
Add 'normal', 'maximum', 'start-up' and 'cleaning' temperatures to the quotation comparison. For example, if a line that normally carries water at ambient temperature is cleaned with hot water, cleaning is also a design input. If the source has no temperature curve, do not take another brand's curve from the internet and scale it. Mark the request as missing data and get a response from the manufacturer for the same product code. Check the limits of the fitting and seal independently of the hose curve.
Original editorial recommendation; not a clause of a standard.
Frequently asked questions
Is the same temperature factor applied to all PVC hoses?
No. The factor or curve must be verified for the product, construction and conditions of use concerned.
Source coverage
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S017
Parker Safety Guide, Publication 4400-B.1 Parker Hannifin · accessed 2026-10-20 PDF page 3; 3.1 Component Inspection, 3.2 Hose and Fitting Assembly and 3.3 Related Accessories | PDF page 2; 2.4 Temperature | PDF page 3; 2.17 Radiant Heat | PDF page 2; 2.5 Fluid CompatibilityPDF page 2; 2.4 Temperature | PDF page 3; 2.17 Radiant Heat | PDF page 2; 2.5 Fluid CompatibilityPDF page 2; 2.4 Temperature | PDF page 3; 2.17 Radiant HeatPDF page 2; 2.7 Size
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S024
Hose and Flexible Tubing, MS-01-180 Swagelok · accessed 2026-10-19 PDF pages 4–5 / printed 253–254: Nomenclature; pages 8–9: selection, installation and use
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S036
Industrial Hose Safety Connections Gates · accessed 2026-10-19 PDF pp. 6–8 construction and selection; pp. 10–19 maintenance; pp. 21–27 special services