PTFE Lined Metal Bellow Expansion Joints For Industrial

Product Overview

Technical Specifications

• Product Type: PTFE Lined Metal Bellow Expansion Joint, PTFE Lined Bellow Compensator
• Material: Metal bellows: SUS304, SUS316 (SUS201 available on request); PTFE lining: High-purity PTFE with excellent chemical resistance
• Operating Temperature Range: -50℃ to 200℃ (High Temperature Resistant PTFE grade available for higher temp requirements)
• Operating Pressure Range: 0.1MPa to 2.5MPa
• Nominal Diameter: DN25 to DN1200 (Customizable for special sizes)
• Connection Type: Flange (ANSI, DIN, JIS standards), Welded, Threaded
• Compensation Amount: Axial: ±10mm to ±50mm; Lateral: ±5mm to ±25mm; Angular: ±3° to ±10°
• Corrosion Resistance: Resistant to most acids, alkalis, solvents, and oxidizing agents
• Surface Treatment: Polished, Electroplated, Passivated (according to customer requirements)
• Weight: 2.5kg to 150kg (depends on nominal diameter and pressure rating)

Product Features & Advantages

Core Features

1. Superior Chemical Resistance: The high-purity PTFE lining ensures the product is resistant to almost all industrial chemicals, making it suitable for corrosive medium transportation systems. This is a key advantage of our Ptfe Bellows And Ptfe Expansion Joint over conventional metal expansion joints.
2. Excellent Thermal Stability: The specialized PTFE lining and high-quality metal bellows enable stable operation under extreme temperature conditions, meeting the requirements of high-temperature industrial processes as aHigh Temperature Resistant PTFE Bellow Compensator.
3. Strong Compensation Capacity: Optimized bellows design provides excellent axial, lateral, and angular compensation, effectively absorbing piping thermal expansion, vibration, and installation misalignment, reducing stress on piping systems.
4. Leak-Proof Sealing Performance: Integrated molding technology for PTFE lining and metal bellows ensures tight sealing, eliminating the risk of medium leakage and improving system safety.
5. Long Service Life: High-quality materials and strict quality control ensure the product has excellent wear resistance and fatigue resistance, with a service life of up to 10 years under normal operating conditions.
6. Easy Installation & Maintenance: Lightweight design and standardized connection types simplify installation; the durable structure minimizes maintenance frequency and costs.

Application Scenarios

• Chemical Industry: Piping systems for transporting acids, alkalis, solvents, and corrosive media in chemical plants, pharmaceutical factories, and pesticide factories.
• Petrochemical Industry: Refineries, petrochemical plants, and natural gas processing plants for handling crude oil, natural gas, and chemical derivatives.
• Food & Beverage Industry: Piping systems for food processing, beverage production, and dairy processing, where the PTFE lining meets food-grade hygiene requirements.
• Pharmaceutical Industry: GMP-compliant piping systems for pharmaceutical production, ensuring the purity of medicinal materials and avoiding contamination.
• Power Industry: Thermal power plants, nuclear power plants, and waste incineration power plants for high-temperature flue gas, steam, and cooling water piping systems.
• Metallurgical Industry: Steel plants, non-ferrous metal smelters for high-temperature, corrosive gas and liquid transportation piping systems.
• Water Treatment Industry: Sewage treatment plants, desalination plants for corrosive wastewater and seawater piping systems.

Customization Options

• Size Customization: Nominal diameter, length, and flange size can be customized according to customer's piping system requirements (from DN25 to DN1200 and beyond).
• Material Customization: Metal bellows material (SUS304, SUS316, SUS201, etc.); PTFE lining thickness and grade (including high-temperature resistant PTFE); flange material and surface treatment.
• Connection Type Customization: Customizable connection types such as flange (different standards), welded, threaded, according to customer's installation requirements.
• Performance Customization: Customized compensation amount, operating pressure, and temperature range to adapt to special working conditions (such as ultra-high temperature, ultra-high pressure, strong corrosion).
• Other Customizations: Special marking, packaging, and surface treatment requirements according to customer needs.