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Soren20061110
JINGCHENG
3917290000 3904610000 3917390000
JINGCHENG Polyurethane Hose is the dedicated heated pipeline for polyurethane equipment, widely used on all kinds of laminating machines and one- and two-component PU compounding and connecting equipment, with heat resistance up to 180°C and higher on request. This page explains what the 180°C rating of the polyurethane hose means in practice, how to specify a separate heated line for each PU component, and how to read the seven-size pressure and bend-radius table before ordering.
Most hoses in JINGCHENG's heated-hose catalog list a heat resistance of up to 230°C. The polyurethane hose is listed at up to 180°C (higher temperature on request). That difference is the starting point for specifying it correctly: the PU hose is defined around the temperature window of polyurethane equipment rather than around the highest temperature in the product family. This article explains what the 180°C rating means in practice, how to read the size table, and how to specify separate lines for each component.
JINGCHENG's polyurethane hose is the dedicated pipeline for polyurethane equipment and is widely used on all kinds of laminating machines and on one- and two-component polyurethane compounding and connecting equipment. Over many years it has built a large base of quality customers through stable quality and complete customer service.
It is a ceiling, not a set point. Your process temperature comes from the PU system supplier; the hose rating must sit above it.
Above 180°C, ask for a custom build. The catalog states that higher temperatures can be made on request; do not run a standard PU hose hotter than its rating.
Pressure is listed per bore. Confirm the pressure rating at your operating temperature with JINGCHENG engineers when you order.
Even heating matters as much as the maximum. The heating layer is made of uniformly braided heating elements that minimize the temperature difference along the inner wall, and high-efficiency insulation is chosen with the surface temperature in mind, so each component stays at its intended temperature along the full length.
On two-component equipment, each component usually travels in its own heated hose. Because every JINGCHENG hose is built to order, each line can be specified separately:
Bore for the flow of that component
Length to suit the machine layout (3 m, 4.5 m, 5 m, 6 m, 10 m or other)
Sensor read by the controller zone for that line — Type J or Type K thermocouple, Ni120, PT100 or PT1000
Rated power of 110, 150, 170 or 200 W/m or other, and supply voltage of 380 Vac, 220 Vac, 110 Vac, 12 Vdc or other
Fittings with US, British or metric threads, and a defined pin layout at each connector
Labeling each hose and keeping the pin layouts distinct helps prevent the two components' lines from being swapped during installation or maintenance.
The polyurethane hose uses the seven-size standard table from 1/4" to 1":
Working pressure runs from 173 bar (2501 psi) at 1/4" through 158, 135, 118, 88 and 85 bar to 75 bar (1088 psi) at 1".
Burst pressure runs from 690 bar (10005 psi) at 1/4" to 300 bar (4350 psi) at 1".
Minimum bend radius is 30 mm, 40 mm and 60 mm for the three small bores, then 150 mm at 1/2", 180 mm at 5/8", 260 mm at 3/4" and 300 mm at 1".
Outer diameter (mm ±0.2) is 9, 11, 12.4, 15.9, 19, 22.6 and 29.5 mm.
Inner Diameter (inch) | Outer Diameter (mm ±0.2) | Working Pressure (bar) | Working Pressure (psi) | Burst Pressure (bar) | Burst Pressure (psi) | Min. Bend Radius (mm) |
|---|---|---|---|---|---|---|
1/4" | 9 | 173 | 2501 | 690 | 10005 | 30 |
5/16" | 11 | 158 | 2284 | 630 | 9137 | 40 |
3/8" | 12.4 | 135 | 1958 | 540 | 7830 | 60 |
1/2" | 15.9 | 118 | 1704 | 470 | 6815 | 150 |
5/8" | 19 | 88 | 1269 | 350 | 5075 | 180 |
3/4" | 22.6 | 85 | 1234 | 340 | 4930 | 260 |
1" | 29.5 | 75 | 1088 | 300 | 4350 | 300 |
Data source: JINGCHENG 2025 Electrically Heated Hose Catalog. Heat resistance up to 180°C; higher temperature on request. Confirm the rating at your operating temperature with our engineers when ordering.
Laminating machines of all kinds that process polyurethane adhesives
One-component polyurethane equipment needing a heated supply line
Two-component polyurethane compounding equipment, with a separate heated line for each component
Polyurethane connecting equipment linking tanks, pumps, metering units and heads
Name the PU system and its working temperature; confirm it is within the 180°C standard rating or request a custom build.
For each component line, choose the bore and measure the length.
State supply voltage, power per meter and the sensor type of each controller zone.
Define threads and connector pin layouts at both ends of every line.
Plan routing so that no bend is tighter than the listed radius and the hose is never twisted sideways.
A model code such as JCH-200-16-B-3X220-P2-8 reads as 200°C, Φ16 mm ID, inner-tube type B, three-phase four-wire 220 V, PT100 two-wire and 8 MPa; a PU line is coded with its own temperature, bore, sensor and pressure.
Wire each hose according to its technical data and pin table, avoid sharp bends, and let only trained personnel install and operate it. The catalog operating environment is -40°C to +55°C ambient, relative humidity not above 85%, and surroundings free of gases that corrode metal or damage insulation.
Send your polyurethane equipment model, the components, their temperatures, the bores and lengths, and the electrical and fitting details. JINGCHENG engineers will propose a matching polyurethane heated hose set and quotation.
