PTFE Lined Spool
Model:PTFE Lined Spool
We are one of the market leaders in providing PTFE Lining in the Spool. Our PTFE Lined Spools are acclaimed among our customers. The standard thickness of PTFE Lining is 3 mm, however we can perform Lining of higher thickness as well on demand of our clients. The Lining will be in compliance with ASTM F1545. We can provide the spools with both side fixed/loose flanges as per the requirement of client.
Kaxite PTFE Lined Spool is a flanged pipe section lined with virgin PTFE, PFA, or FEP to deliver outstanding corrosion resistance in aggressive chemical service. The carbon steel or stainless steel housing provides mechanical strength, while the fluoropolymer liner creates a smooth, non-stick, chemically inert flow path. Standard lining thickness is 3 mm, with custom thicknesses available. Manufactured in compliance with ASTM F1545, these spools are ideal for connecting pumps, valves, and pipelines in chemical, pharmaceutical, and petrochemical plants. Request a quote →
PTFE Lined Spool – Reliable Corrosion Protection for Flanged Pipe Connections
Kaxite PTFE Lined Spool is a precision-engineered flanged pipe section 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. This makes the spool an ideal choice for replacing expensive alloy piping in chemical dosing lines, transfer systems, and process connections.
Our PTFE Lined Spools are widely used to connect pumps, valves, flow meters, and reactors in chemical processing, pharmaceutical, petrochemical, and water treatment plants. The liner is available in PTFE, PFA, and FEP to suit different temperature and purity requirements. Standard lining thickness is 3 mm, and custom thicknesses can be supplied on request. All spools are manufactured in accordance with ASTM F1545, with fixed or loose flanges on both ends as per client specification. Contact our engineering team for custom lengths, diameters, and flange drilling.
Key Features & Benefits
- ✅ Excellent Chemical Resistance – PTFE, PFA, and FEP liners resist virtually all acids, bases, solvents, and oxidizing agents.
- ✅ 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.
- ✅ 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 on both ends, drilled to ANSI, DIN, JIS, or custom standards.
- ✅ Custom Sizes – Available in a wide range of diameters, face-to-face lengths, and lining thicknesses.
PTFE Lined Spool – flanged steel spool with chemically resistant fluoropolymer liner
Technical Specifications – PTFE Lined Spool
| Parameter | Value / Range |
|---|---|
| Product Name | PTFE Lined Spool |
| 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) |
| Face-to-Face Length | Customized as per client requirement |
| Flange Options | Fixed flange, loose flange (both sides), 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, 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
Pump & Valve Connections Flexible spools between pumps, valves, and rigid piping to absorb vibration and misalignment.
Chemical Dosing Lines Transfer of acids, alkalis, and aggressive additives in precise dosing systems.
Pharmaceutical High-purity fluid handling where product contamination must be avoided.
Petrochemical Corrosive process streams, sour gas, and hydrocarbon service.
Water Treatment Dosing lines for chlorine, acids, and coagulants.
Food & Beverage Sanitary connections for acidic foods and CIP systems.
Quality Assurance & Certifications
Kaxite PTFE Lined Spools 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 Spool is protected with end caps to prevent damage to the liner during transport. Spools 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 Spools?
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 flange configurations.
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 Spools 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 standard lining thickness of a PTFE Lined Spool?
- 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 spool be supplied with loose flanges?
- A: Yes, we can provide spools with both side fixed and loose flanges as per the client's requirement. Flanges can be drilled to ANSI, DIN, JIS, or custom standards.
- Q: What is the maximum size and length available?
- A: Lining can be performed in spools from 1" to 12" ID and up to 6 meters in length. For larger sizes or longer dimensions, please contact our engineering team for a custom solution.
- 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 Spools. 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.
Send Inquiry
Contact Info
-
Address
No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
-
-
Email
Request a Quote or Technical Consultation
Share your sealing requirement and our technical sales team will respond within 24 business hours. For fastest service, include your flange specification, operating pressure, temperature, and process media in the message below.
News Recommendations
