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Soren20061105
JINGCHENG
3917290000 3904610000 3917390000
JINGCHENG 304 Spring-Supported PTFE Convoluted Hose (series JCC-20000-PTFE) combines a smooth-bore PTFE inner tube, a convoluted outer wall and a 304 stainless steel spiral spring in the middle layer to carry highly corrosive chemicals, hot air, hot oil and steam from -65°C to +260°C. This page explains how the three layers of the JINGCHENG JCC-20000-PTFE hose work together, what the 304 spiral spring adds compared with a bare convoluted hose, and how to select a size for hot or corrosive service.
Hot air, hot oil, steam and highly corrosive chemicals put two different demands on a hose: the inner surface must resist the medium and drain cleanly, and the wall must keep its shape when it is hot and bent. The JINGCHENG JCC-20000-PTFE hose assigns each job to a separate part of the construction:
Smooth-bore PTFE inner tube: the medium only touches PTFE. The bore is smooth, so it drains and flushes more easily than a fully convoluted hose.
Convoluted outer wall: the outside of the PTFE tube is corrugated, which gives the flexibility of a bellows while the inside stays smooth.
304 stainless steel spiral spring (middle layer): the spring sits in the convolutions and supports the wall, helping it hold a round section through bends and at temperature.
Rated temperature is -65°C to +260°C.
According to the catalog, the JCC-20000 series is used to convey highly corrosive chemicals, hot air, hot oil, steam and similar media in the food, cosmetics, chemical and pharmaceutical industries.
At the same nominal size, the spring-supported smooth-bore design carries far more pressure than our bare convoluted hose:
1/2": JCC-10000 bare convoluted hose works at 0.4 MPa; JCC-20000 works at 1.8 MPa.
1/4": 0.4 MPa for JCC-10000 against 2.64 MPa for JCC-20000.
The bend radius stays small: 19 mm at 1/4" and 5/16", 38 mm at 1/2" and 75 mm at 1". Working pressure steps down with size, from 2.64 MPa at 1/4" to 1.2 MPa at 1"; burst pressure runs from 8.8 MPa to 4 MPa.
Part No. | Nominal Size | Inner Diameter (mm ±0.3) | Outer Diameter (mm ±0.3) | Working Pressure (psi) | Working Pressure (MPa) | Burst Pressure (psi) | Burst Pressure (MPa) | Min. Bend Radius (inch) | Min. Bend Radius (mm) |
|---|---|---|---|---|---|---|---|---|---|
JCC-20006-PTFE | 1/4" | 6.8 | 8.35 | 396 | 2.64 | 1276 | 8.8 | 0.75 | 19 |
JCC-20008-PTFE | 5/16" | 7.9 | 10.3 | 378 | 2.52 | 1218 | 8.4 | 0.75 | 19 |
JCC-20010-PTFE | 3/8" | 10 | 11.93 | 360 | 2.4 | 1160 | 8 | 0.98 | 25 |
JCC-20013-PTFE | 1/2" | 13.6 | 15.1 | 270 | 1.8 | 870 | 6 | 1.5 | 38 |
JCC-20016-PTFE | 5/8" | 16.7 | 18.3 | 236.83 | 1.63 | 725 | 5 | 1.97 | 50 |
JCC-20019-PTFE | 3/4" | 19.8 | 22 | 203 | 1.4 | 609 | 4.2 | 2.48 | 63 |
JCC-20025-PTFE | 1" | 26.4 | 29.4 | 180 | 1.2 | 580 | 4 | 2.95 | 75 |
Data source: JINGCHENG PTFE Hose Catalog (JCC-20000-PTFE Series). Operating temperature range: -65°C to +260°C. All specifications can be customized according to customer parameters.
Temperature first: confirm the maximum medium temperature, including cleaning or steam-out cycles, is within -65°C to +260°C.
Pressure at size: choose the ID that matches your fitting, then check the working pressure for that row. Larger sizes have lower ratings.
Bend planning: route the hose no tighter than the minimum bend radius. Avoid twisting the hose during installation, as torsion stresses the spring and the convolutions.
Protect people: hot oil and steam lines get hot on the outside too. Add guards or insulation where operators can touch the hose.
Higher pressure needed? The JCC-21100 series uses the same smooth-bore, convoluted-outer PTFE design with a 304 stainless steel braid instead of a spring, with working pressure of up to 9 MPa.
Custom sizes: inner diameter, outer diameter, length and end configuration can be made to your parameters. Send us the medium, temperature and pressure for a quotation.
