Metal Hoses (PTFE Lining)
1. Premium virgin PTFE inner liner with stainless steel corrugated armor and wire braid protection.
2. Universal chemical resistance to all commercial acids, bases, solvents, and oxidizers.
3. Non-stick smooth surface prevents buildup and enables easy CIP cleaning — ideal for sanitary applications.
4. Temperature stability from -70°C to +260°C for cryogenic liquid transfer through superheated steam service.
5. External SS304/SS316 wire braid contains pressures up to 10 MPa with single or double layer options.
6. Smooth bore design minimizes pressure drop and allows complete drainage for high-purity transfers.
7. FDA-compliant PTFE liner for GMP pharmaceutical and food-grade processing lines.
8. Compliant with ISO 10380 and FDA standards with full material traceability documentation per batch.
Metal Hoses (PTFE Lining)
DEVEL PTFE Lined Stainless Steel Braided Metal Hose is the ultimate solution for transporting highly corrosive chemicals, ultra-pure fluids, and high-temperature media.
By combining the pressure-resistant stainless steel braided exterior with a chemically inert PTFE (Teflon) inner liner, this hose offers the mechanical strength of metal and the exceptional corrosion resistance of fluoropolymers.
It is widely used in industries where safety and purity are paramount — including high-pressure chemical loading, pharmaceutical processing, and hot steam transfer operations.
Key Features at a Glance
- Premium Virgin PTFE Inner Liner
Constructed with a high-purity virgin PTFE (polytetrafluoroethylene) or FEP liner that is virtually inert to all commercial chemicals, acids, bases, solvents, and oxidizers. The smooth non-stick surface prevents material buildup, eliminates product contamination risk, and makes cleaning between batch changes effortless. - Stainless Steel Corrugated Armor + Wire Braid
An external corrugated stainless steel armor layer provides structural backbone and flexibility, wrapped by single or double layers of high-strength SS304/SS316L wire braid that delivers excellent hoop strength for containing internal pressures up to 10 MPa while shielding the liner from external mechanical damage. - Absolute Chemical Resistance Meets Mechanical Safety
The dual-material design delivers what neither material can achieve alone: PTFE provides unmatched chemical inertness against aggressive media (concentrated acids, caustics, chlorinated solvents), while the stainless steel braid ensures pressure containment safety and protection from physical impact in industrial environments. - Broad Temperature Stability & Sanitary Compliance
Maintains full integrity from cryogenic -70°C up to +260°C without embrittlement or degradation. The FDA-compliant PTFE liner meets strict food-grade and pharmaceutical purity requirements, making it ideal for GMP-compliant production lines and sanitary washdown environments. - Smooth Bore Design for Unrestricted Flow
Available in both smooth bore and convoluted PTFE liner configurations to suit your application needs. The smooth interior surface minimizes pressure drop, eliminates turbulent eddy zones that cause product hang-up, and allows complete drainage — essential for viscous fluids and high-purity transfers. - Flexible Connection Options
Fully compatible with flanged connections (ANSI/DIN/GB standards), tri-clamp sanitary fittings for pharmaceutical applications, threaded ends (NPT/BSP), or quick couplings for rapid changeover setups. Custom end configurations engineered per your equipment specifications.
Key Technical Advantages
- Universal Chemical Resistance: The PTFE liner is virtually inert to all commercial chemicals, acids, and bases — making it the definitive choice for handling concentrated sulfuric acid, hydrochloric acid, sodium hydroxide, and organic solvents without corrosion concerns.
- Non-Stick & Easy to Clean: The smooth inner surface prevents material buildup, residue adhesion, and bacterial growth zones — ideal for sanitary applications requiring CIP (clean-in-place) protocols and rapid batch-to-batch changeover in pharmaceutical manufacturing.
- Temperature Stability: Maintains dimensional and chemical integrity from -70°C up to +260°C across the full operating range, covering cryogenic liquid transfer through superheated steam service without liner embrittlement or softening.
- High Pressure Safety: External SS304/SS316 wire braid provides excellent hoop strength to contain working pressures up to 10 MPa depending on diameter and braid layer configuration, ensuring safe operation under demanding chemical loading conditions.
Technical Specifications (DEVEL Standard)
| Parameter | Specification |
|---|---|
| Diameter Range | DN15 – DN200 (1/2″ – 8″) |
| Lining Material | PTFE / FEP (Smooth or Convoluted) |
| Braid Material | Stainless Steel 304 / 316L |
| Working Pressure | Up to 10 MPa (Depends on size and braid layers) |
| Connection Standard | Flanged (ANSI/DIN/GB), Tri-clamp, or Threaded |
| Design Standards | FDA Compliant, ISO 10380 |
Size Chart — PTFE Lining Metal Hoses
| DN (MM) | Inside Diameter (MM) | Outside Diameter (mm) | Min. Bending Radius (mm) | Max Working Pressure (MPa) | |||
|---|---|---|---|---|---|---|---|
| Bellows | Braid Mesh | Static | Dynamic | Single Braid | Double Braid | ||
| 8 | 8.8 | 13.2 | 14.4 | 50 | 110 | 15 | 20 |
| 10 | 11.7 | 16.5 | 17.7 | 65 | 145 | 15 | 20 |
| 15 | 13.5 | 19.5 | 21.1 | 80 | 180 | 18 | 20 |
| 20 | 20 | 27 | 28.6 | 120 | 270 | 10 | 15 |
| 25 | 27 | 34.5 | 36.1 | 160 | 360 | 6.3 | 10 |
| 32 | 32 | 40 | 41.6 | 175 | 400 | 4 | 6.3 |
| 40 | 39.6 | 52 | 53.6 | 225 | 510 | 4 | 6.3 |
| 50 | 49.7 | 62 | 63.6 | 280 | 640 | 3 | 5 |
| 65 | 61.2 | 80.2 | 81.8 | 410 | 915 | 3 | 5 |
| 80 | 79 | 96.3 | 97.9 | 486 | 1030 | 3 | 5 |
| 100 | 101.2 | 119.6 | 121.2 | 610 | 1340 | 2.5 | 4 |
| 125 | 124.1 | 145.3 | 146.9 | 700 | 1540 | 2.5 | 4 |
| 150 | 149.4 | 180.8 | 182.4 | 810 | 1780 | 2.5 | 4 |
| 200 | 176 | 240 | 243.2 | 1000 | 2000 | 2.5 | 4 |
| 250 | 248 | 290 | 294 | 1250 | 2500 | 2.5 | 4 |
| 300 | 298 | 350 | 355 | 1500 | 3000 | 1.6 | 2.5 |
| 350 | 347 | 400 | 404.8 | 1750 | 3500 | 1.6 | 2.5 |
| 400 | 397.6 | 460 | 464.8 | 2000 | 4000 | 1.6 | 2.5 |
Note: Install length based on the Devel factory standard. Other lengths can be changed according to your requirement.
Typical Applications
- High-Pressure Chemical Loading: Safe transport of highly corrosive chemicals including concentrated acids, strong alkalis, chlorinated solvents, and oxidizing agents in chemical plants, tank farms, and railcar loading/unloading terminals.
- Pharmaceutical Processing: Ultra-clean fluid handling with FDA-compliant virgin PTFE liner meeting GMP requirements for active pharmaceutical ingredient (API) transfer, sterile water loops, and solvent delivery systems requiring zero contamination risk.
- Hot Steam Transfers: Reliable saturated and superheated steam distribution lines in sterilization tunnels, autoclave systems, and clean-in-place (CIP) heating circuits operating at temperatures up to 260°C.
- Food & Beverage: Sanitary-grade ingredient transfer, flavor concentrate dosing, and CIP-compatible process lines where non-stick PTFE surface prevents product residue buildup and enables thorough washdown compliance.
- Semiconductor Manufacturing: Ultra-high-purity (UHP) chemical delivery systems for acid etchants, solvents, and ultrapure water transfer in wafer fabrication fabs where even trace metal contamination must be avoided.
- Paint & Coating Industry: Solvent-based paint transfer, resin pumping, and coating material delivery lines where PTFE’s non-stick properties prevent clogging and enable easy color-change cleanup between batches.
Product Tags
Chemical Resistant Hose
Corrosion Resistant
Virgin PTFE Liner
FEP Lined
Stainless Steel Braid
Non-Stick Surface
FDA Compliant
Pharmaceutical Grade
Tri-Clamp Connection
-70°C to +260°C
Up to 10 MPa
ISO 10380
DN15-DN200
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Factory-direct pricing available. DEVEL engineering team ready to assist with material selection, sizing calculations, and installation guidance.
