PTFE Lined Bend
Model:PTFE Lining in Bend
PTFE Lining in Bend is same as the Lining in Reducer. We are one of the renowned names in providing PTFE Lining in Bend to our clients. We manufacture these products as per the industry norms.
Kaxite PTFE Lined Bend is a flanged pipe fitting lined with virgin PTFE, PFA, or FEP to deliver outstanding corrosion resistance in aggressive chemical service. Also known as a PTFE Lined Pipe Bend or PTFE Lined Sweep Bend, the fitting provides a smooth, non-stick, chemically inert flow path for gradual direction changes in corrosive pipelines. The carbon steel or stainless steel housing carries the mechanical load, while the fluoropolymer liner isolates the media from the metal surface. Manufactured in compliance with ASTM F1545, these bends are ideal for chemical, pharmaceutical, and petrochemical plants. Request a quote →
PTFE Lined Bend – Reliable Corrosion Protection for Gradual Direction Changes
Kaxite PTFE Lined Bend is a precision-engineered flanged pipe fitting designed to handle highly corrosive fluids without compromising structural integrity. The steel outer shell carries the mechanical load, while the internal PTFE liner isolates the transported media from the metal surface, preventing corrosion, contamination, and product build-up. Compared with a standard elbow, the bend offers a larger radius that reduces pressure drop and minimizes erosion at the turning point.
Our PTFE Lined Bends are available in a range of bend radii and angles to suit different pipeline layouts. The liner is available in PTFE, PFA, and FEP to match various temperature and purity requirements. Standard lining thickness is 3 mm, and custom thicknesses can be supplied on request. All bends are manufactured in accordance with ASTM F1545, with fixed or loose flanges as per client specification. Contact our engineering team for custom sizes, bend radii, and flange drilling.
Key Features & Benefits
- ✅ Excellent Chemical Resistance – PTFE, PFA, and FEP liners resist virtually all acids, bases, solvents, and oxidizing agents.
- ✅ Multiple Bend Radii – Available in short-radius and long-radius configurations to match pressure drop requirements.
- ✅ Temperature Resistant – Continuous service from -29°C to +260°C, depending on the liner material selected.
- ✅ Anti-Corrosive Construction – Steel shell provides pressure containment; the liner protects against media attack.
- ✅ Excellent Surface Finish – Smooth liner surface minimizes friction loss and prevents material accumulation at the bend.
- ✅ Long Service Life – Combines structural strength with outstanding chemical durability.
- ✅ Flexible Liner Options – PTFE, PFA, or FEP available to match your process media and temperature.
- ✅ Flange Flexibility – Fixed or loose flanges, drilled to ANSI, DIN, JIS, or custom standards.
PTFE Lined Bend – flanged steel bend with chemically resistant fluoropolymer liner
Technical Specifications – PTFE Lined Bend
| Parameter | Value / Range |
|---|---|
| Product Name | PTFE Lined Bend |
| Bend Types | Short-radius Bend, Long-radius Bend (custom angles on request) |
| Liner Materials | PTFE (standard), PFA, FEP |
| Shell Materials | Carbon Steel, Stainless Steel 304/316, or other alloys on request |
| Standard Lining Thickness | 3 mm (higher thickness available on request) |
| Size Range | 1" to 12" ID (custom sizes available) |
| Bend Radius | 1.5D, 3D, 5D, or custom radius on request |
| Flange Options | Fixed flange, loose flange, as per client requirement |
| Operating Temperature | -29°C to +260°C (depends on liner material) |
| Applicable Standard | ASTM F1545 |
| Pressure Rating | Up to 16 bar (depending on size and flange rating) |
* Custom liner thickness, shell materials, bend radii, and flange drilling are available. Consult our engineering team for specific service conditions.
Liner Material Selection Guide
Choose the optimal liner material based on your chemical media, operating temperature, and purity requirements.
| Liner Material | Max. Temperature | Chemical Resistance | Typical Applications |
|---|---|---|---|
| PTFE | 260°C | Excellent against most chemicals | General chemical processing, acids, bases |
| PFA | 260°C | Similar to PTFE, better flexibility | High-purity applications, semiconductor |
| FEP | 200°C | Good chemical resistance | Food & beverage, pharmaceutical |
* Liner selection should consider permeation, thermal cycling, and vacuum service. Contact Kaxite for a detailed recommendation.
Typical Applications
Chemical Processing Direction changes in aggressive acid, alkali, and solvent transfer lines.
Pharmaceutical High-purity fluid handling where contamination must be avoided.
Petrochemical Corrosive process streams, sour gas, and hydrocarbon service.
Water Treatment Dosing and distribution lines for chlorine, acids, and coagulants.
Food & Beverage Sanitary bend connections for acidic foods and CIP systems.
Pulp & Paper Chlorine dioxide, bleaching agents, and corrosive slurries.
Quality Assurance & Certifications
Kaxite PTFE Lined Bends are manufactured under strict quality controls in our ISO 9001:2015 certified facility. Our production process includes:
- ISO 9001:2015
- ASTM F1545 Compliance
- 100% Dimensional Inspection
- Liner Thickness Verification
- Hydrostatic Pressure Testing
- Full Traceability (EN 10204 3.1/3.2)
* Third-party inspection (SGS, BV, TÜV) available upon request.
Packaging & Shipping
Each PTFE Lined Bend is protected with end caps to prevent damage to the liner during transport. Bends are individually wrapped, bundled, and secured on wooden pallets or packed in wooden cases suitable for sea, air, or rail freight. Custom packaging and marking are available on request.
* Shipping method: by sea, train, or air – we optimise logistics for cost and speed.
Why Choose Kaxite for PTFE Lined Bends?
Over 30 Years of Expertise – Proven track record in supplying corrosion-resistant fluid handling products.
Full Compliance – Manufactured to ASTM F1545 and other international standards.
Custom Engineering – Non-standard sizes, liner thicknesses, and bend radii.
Competitive Pricing – Factory-direct supply with no middleman costs.
Fast Delivery – Standard sizes in stock; custom orders produced in 7-15 days.
Technical Support – Our engineers provide free consultation on liner selection and installation.
Field-Proven Reliability: Kaxite PTFE Lined Bends are installed in thousands of critical applications worldwide, delivering reliable performance in chemical plants, refineries, and pharmaceutical facilities.
Frequently Asked Questions
- Q: What is the difference between a PTFE Lined Bend and a PTFE Lined Elbow?
- A: A bend typically has a larger radius than an elbow, which reduces pressure drop and minimizes erosion at the turning point. Elbows are usually 45° or 90° with a short radius, while bends are available in 1.5D, 3D, 5D, and custom radii.
- Q: What is the standard lining thickness of a PTFE Lined Bend?
- A: The standard thickness of PTFE lining is 3 mm. However, we can perform lining of higher thickness on demand to suit specific pressure or permeation requirements.
- Q: Can the bend be supplied with loose flanges?
- A: Yes, we can provide bends with fixed or loose flanges as per the client's requirement. Flanges can be drilled to ANSI, DIN, JIS, or custom standards.
- Q: What is the operating temperature range?
- A: The operating temperature range is from -29°C to +260°C, depending on the liner material and specific application conditions. PFA and FEP liners have slightly different limits; consult our technical team for details.
- Q: Do you offer PFA and FEP liners as alternatives to PTFE?
- A: Yes, lining can be done using PFA and FEP materials as well. These offer similar chemical resistance with improved flexibility or purity for specific applications.
Ready to order or need technical advice? Contact Kaxite now – our team responds within 2 business hours.
Partner with Kaxite Sealing – your reliable supplier of PTFE Lined Bends. With decades of experience, a wide range of liner materials, and a commitment to quality, we deliver piping solutions that ensure safety, reliability, and compliance in the most demanding industrial applications. Request a free design review or get a bulk quote today.
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No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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