PTFE Bellow — Material Specifications, Engineering Data & OEM Supply
PTFE Bellow from HEMSUN provides reliable chemical and thermal service across industrial processing plants. Manufactured in Dahegam, Gandhinagar, Gujarat, India from high-grade PTFE fluoropolymer with micro-finished sealing surfaces and full export documentation.
Where PTFE Bellow is used
Axial-movement joint absorbing expansion and misalignment while keeping the process fluid contained.
PTFE suits bellows because it takes repeated axial movement without work-hardening in chemical service.
The bellows form is specified where the joint has to absorb axial movement or misalignment; a static seal in the same material would be specified where the interface does not move.
Key properties
In-house PTFE Bellow production
moulding and CNC under one roof
Drawing, CAD (STEP/IGES/DXF), or sample-based reverse engineering
PTFE grade options matched to chemical and thermal duty
Dimensional inspection with reports on request
IEC-registered exporter
worldwide packing and docs
Flexible MOQ
prototypes, pilot lots, recurring OEM supply
Specifications
| Property | Value |
|---|---|
| Component Type & Grade | PTFE Bellow (Specification Code HES-465) |
| Base Raw Material | PTFE fluoropolymer (Virgin FDA 21 CFR 177.1550 / Custom Filled) |
| Continuous Service Temp. | -200°C to +260°C (-328°F to +500°F) |
| Tensile Strength at Break | 20 to 35 MPa (Virgin) / 14 to 25 MPa (Filled) |
| Elongation at Break | 250% to 450% (ASTM D4894) |
| Specific Gravity / Density | 2.14 to 2.18 g/cm³ (ASTM D792) |
| Dielectric Strength | 50 to 80 kV/mm (0.1 mm film) |
| Surface Roughness Finish | Diamond Polished Ra ≤ 0.20 µm to Ra ≤ 0.40 µm |
| Dimensional Tolerance | ISO Grade 1 to Grade 3 / Drawing Nominals (±0.02 mm) |
| Manufacturing & Origin | Moulded, Sintered & CNC Machined in Dahegam, Gandhinagar, Gujarat, India |
Manufacturing process
Our dedicated manufacturing cells produce PTFE Bellow from premium PTFE fluoropolymer powder stock. After uniaxial preforming in precision tooling, components undergo computer-monitored sintering cycles and diamond-tooled CNC profiling to hold exact drawing dimensions.
Material selection notes
The PTFE fluoropolymer material utilized in PTFE Bellow exhibits exceptional dielectric insulation (up to 80 kV/mm) and zero moisture absorption (<0.01%). It withstands thermal cycling between cryogenic temperatures and +260°C without embrittlement or dimensional degradation in demanding industrial environments.
How to specify your order
For engineering consultation on PTFE Bellow, send your component specifications, media compatibility parameters, and production batch sizes. We provide material datasheets, sample trial options, and detailed technical quotes within one business day.
Quality checks and inspection
Each shipment of PTFE Bellow is verified through comprehensive QA benchmarks: CMM dimensional layout, density gradient analysis, high-voltage insulation breakdown testing, and certified inspection reports.
Ordering and export documentation
Domestic PTFE Bellow orders ship with GST invoice and e-way bill where applicable. Export orders include commercial invoice, packing list, and certificate of origin from our IEC-registered works. Air and sea freight packing with desiccant and shock protection for international buyers Contact info@hemsun.com or sales@hemsun.com with your PTFE components specification.
Export packing and lead time
We provide full export support for PTFE Bellow orders worldwide. International documentation includes Certificate of Origin, packing lists, material safety data sheets, and custom export crating designed to withstand long-distance maritime transit.
Storage and handling
Care and handling for PTFE Bellow: Protect machined sealing edges against impact during transit and staging. Do not exceed recommended compressive stress limits during mechanical flange tightening.
Compliance & Standards
HEMSUN is a DGFT IEC registered exporter (Government of India). Sealing faces are inspected for flatness and finish, thickness verified on calibrated gauges, and sintered density checked per ASTM D792. A mill test certificate ships with the order. Export paperwork — commercial invoice, packing list and certificate of origin — accompanies international despatch.
Frequently Asked Questions
What PTFE Bellow options does HEMSUN manufacture?
PTFE Bellow from HEMSUN provides reliable chemical and thermal service across industrial processing plants. Manufactured in Dahegam, Gandhinagar, Gujarat, India from high-grade PTFE fluoropolymer with micro-finished sea…
Can you supply PTFE Bellow for OEM and export orders?
Yes. We support prototype lots, recurring OEM programmes, and export packing with material certificates and dimensional inspection reports on request. Typical RFQ response is within one business day when drawings are complete.
How do I request a quote for PTFE Bellow?
Send material grade, dimensions or drawing, quantity, application media, and operating temperature/pressure via https://hemsun.com/contact. Our engineering team confirms manufacturability, lead time, and pricing.