PTFE Lined Flexible Hose & Bellow Assemblies
Designed for dynamic chemical transfer where rigid piping cannot accommodate equipment motion, road tanker vibration, or frequent line connection. Combines the chemical resistance of virgin PTFE with the mechanical bursting resistance of high-tensile SS304 / SS316 wire braid.
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Quick ReplyKey Engineering Highlights
- Smooth-bore or convoluted virgin PTFE inner tube resists all commercial acids
- Single or double outer SS304/SS316 wire braid provides high burst resistance
- Flanged ends flared with internal PTFE tube for zero metal fluid contact
- Anti-kink internal coil or silicone outer jacket options available
All components are manufactured in our specialized industrial facility located at GIDC Chhatral, Dist. Gandhinagar, Gujarat. The seamless fluoropolymer liner completely shields all wetted metal surfaces from chemical attack and fluid contamination.
Available Construction Variants
- Smooth Bore High Pressure Hose
- Convoluted Super-Flex Hose
- Sanitary Tri-Clamp Hose
| Technical Parameter | Verified Specification Standards |
|---|---|
| Lining Material | Virgin PTFE (Smooth or Convoluted) |
| Body Material | SS304 / SS316 Outer Wire Braid with Carbon Steel / SS Flanges |
| Size Range | 1/2" (DN15) to 4" (DN100), customized continuous lengths |
| Pressure Rating | Working pressure up to 60 Bar (size dependent) |
| Temperature Range | -50°C to +200°C |
| End Connection | PTFE-flared ANSI 150 Flanges, Camlock couplers, or BSP/NPT threads |
| Testing Standards | EN 16643, Hydrostatic Proof Tested to 1.5x working pressure |
Lining Fluoropolymer Options
We select virgin grade fluoropolymers matched precisely to process chemistry and operating temperature:
- PTFE: -29°C to +200°C, universal chemical inertness, in-house paste extrusion.
- PFA: -29°C to +200°C, melt-processable, superior clarity and permeation resistance.
- FEP: -29°C to +150°C, high dielectric strength and smooth non-stick surface.
- PVDF / PP / HDPE: Cost-effective options for mild corrosive and water treatment lines.
Housing & Metallurgy Options
Rugged metallic outer shells provide high pressure containment and mechanical strength:
- Cast Steel: ASTM A216 Gr. WCB for heavy-duty pressure valves and fittings.
- Carbon Steel Pipe: ASTM A106 Gr. B seamless pipe spools with A105 flanges.
- Ductile Iron: ASTM A395 / GGG40.3 for economical vibration-absorbing installations.
- Stainless Steel: CF8 / CF8M (SS304/SS316) for highly corrosive external plant atmospheres.
