Practical guides from our engineering team for buyers and engineers who specify electrically heated hoses and PTFE hose assemblies. Each guide uses the option ranges from our current catalogs and links to an inquiry you can send straight away.
-
Product · PTFE tube joints
PTFE Tubing Leaking at the Fitting: Cold Flow, Heat Cycles and the Fix
A bare PTFE tube that held on install can weep at the ferrule days later. Why cold flow and heat cycles open the joint, how to diagnose it in seven checks, and the fix that holds.
-
Product · Heated hoses | Guide · Polyurethane
Heated Hose for Polyurethane: Why Your A/B Ratio Drifts on a 2K Machine
Why a cold or unevenly heated component hose shifts the mix ratio on 2K polyurethane machines and solvent-free laminators, how to diagnose it in order, and the 180 °C PU and 230 °C laminator hoses we build.
-
Product · Heated low pressure hose | Guide · Road maintenance
Crack Sealing Hose: Why the Gun End Runs Cold, and How to Fix It
A crack sealing hose that runs cold at the wand is usually a local heat problem, not a failed hose. Three cold ends, one diagnosis order, and the 230 °C reinforced build we make for sealers and waterproofing sprayers.
-
Product · PTFE Hose | Guide · Troubleshooting
Convoluted PTFE Hose: Why It Collapses, and Which Build Fixes It
A convoluted PTFE hose that goes oval under suction, or keeps product in its corrugations after a changeover, is usually the wrong construction rather than a faulty hose. Here is how we diagnose both and which of the four convoluted builds fits the line.
-
Product · PTFE High Pressure Hose | Guide · Braid choice and ferrule failures
Stainless Steel Braided PTFE Hose: Single Braid, Double Braid or Jacketed
Why braided PTFE lines weep at the ferrule and how to tell a termination fault from a pressure-rating fault. Compares JCC-01100 single braid, JCC-01200 double braid and JCC-61100 jacketed hose, with the pressure, temperature and routing checks that decide the size.
-
Product · Heated High Pressure Hose
Heated Hose for Extruder: Why the Die End Runs Cold
Why an extruder heated hose reads 250 °C on the controller and still delivers cold melt at the die, how to trace it in an afternoon, and the 250 °C, 35 MPa build we supply for extruders and line-marking machines.
-
Product · Hot melt hose
Hot Melt Hose: Electrically Heated Hose for Hot Melt and PUR Adhesive Machines
Electrically heated hot melt hose for hot melt and PUR adhesive machines, rated to 230 °C as standard. Inner tube, bore, length, power per metre, voltage, sensor and end fittings are specified per machine, and each hose is built after the drawing is confirmed.
-
Product · Heated sample line
Heated Sample Line for Gas Analyzers: Construction, Options and How to Specify
How a Jingcheng heated sample line is built for flue-gas pretreatment, online monitoring and IR/UV analyzers: 230 °C rated, with inner tube, voltage, sensor, bore and fitting options and the inputs to send for a quotation.
-
Technical guide · PTFE hose
Smooth Bore vs Convoluted PTFE Hose: How to Choose a Construction
Construction decides pressure rating, bend radius and cleanability, not the material alone. Compare all twelve Jingcheng PTFE hose series and follow a step-by-step selection path from medium to construction.
-
Electrically heated hose · Specification
Heated Hose Specification Checklist: What to Send for an Accurate Quote
The 12 inputs a manufacturer needs to quote an electrically heated hose, why each one changes the build, the voltage, sensor, bore and pressure options in our 2025 catalog, and a copy-and-paste RFQ template.
Looking for a specific construction? Browse our hose product families or send your operating conditions to an engineer.