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Soren20061113
JINGCHENG
3917290000 3904610000 3917390000
JINGCHENG Anti-Static PTFE Hose Series replaces insulating standard PTFE lines with anti-static smooth bore, anti-static convoluted, anti-static smooth-ID/convoluted-OD or all-black conductive convoluted hose to prevent charge accumulation in flammable liquid, chemical treatment, static load coating and food industry lines from -60°C to 260°C. This page explains how to upgrade standard PTFE lines in seven steps — line audit, risk priorities, choice among the four constructions, size and length matching, continuous static path, installation and verification, and maintenance records.
Standard PTFE hose is an excellent insulator. That is useful in many systems, but when fuels, solvents, powders or coating materials flow through it at speed, static charge can build up in the line. The JINGCHENG PTFE Anti-Static Hose Series is designed for exactly this situation. According to the catalog, anti-static PTFE hose withstands temperatures from -60°C to 260°C, has dielectric strength in the range of 50 V to 120 kV, a friction coefficient of about 0.1 with static and dynamic values almost the same, natural lubrication from its smooth surface, light weight, shock absorption and high impact resistance, strong chemical resistance and water repellency, and, most importantly, static control that prevents charge accumulation. Typical applications are chemical liquid treatment, transportation of flammable liquids, the static load coating industry and the food industry. This guide explains how to plan a retrofit from standard PTFE lines to the anti-static series.
Construction | Wall Design | Main Advantage | Recommended Use |
|---|---|---|---|
Anti-static smooth bore hose | Smooth inside and outside | Lowest flow resistance, easiest flushing | Straight chemical and flammable liquid lines |
Anti-static convoluted hose | Convoluted wall | Maximum flexibility, tight routing | Coating and dosing equipment with complex routing |
Anti-static smooth-ID/convoluted-OD hose | Smooth bore, convoluted outer wall | Clean flow path plus flexibility | Coating, food and chemical lines needing both |
All-black conductive convoluted hose | Fully black conductive convoluted wall | Conductivity through the entire hose | Electrostatic coating, flammable liquid transfer |
Property | Catalog Value |
|---|---|
Temperature range | -60°C to 260°C |
Dielectric strength | 50 V to 120 kV |
Friction coefficient | About 0.1 (static and dynamic almost the same) |
Wear resistance | Natural lubrication; very low static friction under a 500 psi load |
Weight | Very lightweight |
Mechanical behavior | Shock absorption and high impact resistance |
Static behavior | Prevents charge accumulation |
Chemical behavior | Corrosion resistant, water-repellent, highly inert |
Data source: JINGCHENG PTFE Hose Catalog (PTFE Anti-Static Series). Diameters, wall thickness and lengths are produced according to customer requirements.
List every PTFE line that carries flammable liquids, solvents or coating materials, or that runs near electrostatic coating equipment. For each line record the medium, flow rate, temperature, pressure, inner diameter, length, routing and end fittings. Note any history of static discharge, sparking or unexplained deposits.
Priority | Typical line | Reason |
|---|---|---|
High | Flammable liquid transfer, fuel and solvent lines | Static charge near flammable media is the main risk |
High | Electrostatic and static load coating lines | Charge control is part of the process |
Medium | Chemical liquid treatment lines with fast flow | Flow can generate charge in insulating tube |
Medium | Food industry lines where the series is specified | Static control combined with PTFE inertness |
Review | Low-flow water-based lines | Upgrade only if your risk assessment requires it |
Replace a smooth bore line with the anti-static smooth bore hose when the route is straight and flushing matters.
Replace a convoluted line with the anti-static convoluted hose where tight routing and flexibility are needed.
Choose the anti-static smooth-ID/convoluted-OD hose when you need a clean flow path and flexibility together.
Choose the all-black conductive convoluted hose where conductivity through the entire hose is preferred, such as electrostatic coating and flammable liquid transfer.
Diameters, wall thickness and lengths are produced according to customer requirements, so a retrofit can follow the existing line. Supply the inner and outer diameters of the current tube, the fitting type and the installed length, and keep the operating temperature within -60°C to 260°C.
An anti-static hose controls charge only if the charge has somewhere to go. Check that fittings and connected equipment are bonded and earthed according to your plant electrical and safety rules, and that no insulating adapters or seals break the path along the line.
Remove the old line, inspect fittings and replace any that are damaged.
Route the new hose without twisting and avoid sharp bends, especially with smooth bore constructions.
After installation, verify bonding and earthing continuity using your site procedure, and record the result with the line ID.
Label upgraded lines so maintenance teams replace them with anti-static hose in future.
Add the new part description, construction type and installation date to your maintenance system. Include anti-static hose in the spare parts list so a standard PTFE tube is never fitted by mistake.
All lines carrying flammable or charge-generating media listed.
Priorities set by risk.
Construction chosen for routing and flow.
Size, wall thickness and length specified from the existing line.
Bonding and earthing continuity confirmed.
Lines labelled and records updated.
JINGCHENG produces anti-static smooth bore, anti-static convoluted, anti-static smooth-ID/convoluted-OD and all-black conductive convoluted PTFE hose to your dimensions. Send us your line list with media, temperatures, pressures, sizes, lengths and fittings, and our engineers will recommend the right construction for each line.
