1/2" PVDF Butt Welding Flared Elbow for Piping

Product Overview

Crafted from Kynar® PVDF (Polyvinylidene Fluoride), this elbow offers exceptional chemical resistance, mechanical strength, and dimensional stability, making it ideal for industries such as semiconductor manufacturing, chemical processing, pharmaceuticals, and water treatment. With a butt welding flared design, it ensures leak-free connections and simplifies installation in critical piping systems.

Product Characteristics

Material Composition

Constructed from FDA-approved Kynar® PVDF, this elbow combines the robustness of fluoropolymers with advanced thermal properties. PVDF’s molecular structure, reinforced by strong C-F bonds, provides unparalleled resistance to aggressive chemicals like sulfuric acid, sodium hydroxide, and organic solvents. The material’s density of 1.75–1.78 g/cm³ and tensile strength of 30–50 MPa ensure long-term durability under high pressure and mechanical stress.

Design Specifications

Size: 1/2" (20 mm) nominal diameter

Pressure Rating: 232 psi (16 bar) at ambient temperature

Temperature Range: Operates reliably from -40°C to +140°C, with pressure derating at higher temperatures

Flared End Design: Facilitates secure butt welding for seamless integration into piping systems

Smooth Inner Surface: Minimizes friction loss and prevents particle accumulation, critical for high-purity applications

Manufacturing Precision

Injection-molded using state-of-the-art tools, the elbow adheres to ASTM D2122-22 and ISO 1043-1:2011 standards, ensuring dimensional accuracy and compatibility with global piping systems. Its radiused bend radius reduces flow turbulence and enhances structural integrity, while the SDR 21 wall thickness provides optimal strength-to-weight ratio.

Product Features

Corrosion Resistance

The Kynar® PVDF material resists degradation from strong acids, bases, oxidizing agents, and halogens, outperforming traditional metals like stainless steel in corrosive environments. This makes it suitable for handling aggressive fluids in chemical processing plants and wastewater treatment facilities.

High-Purity Performance

With a low extractables profile and FDA approval, this elbow meets the stringent requirements of semiconductor and pharmaceutical industries, where contamination risks must be minimized. Its smooth inner surface and inert properties ensure compliance with ultra-pure fluid transfer standards.

Easy Installation

The butt welding flared design eliminates the need for adhesive or mechanical fittings, reducing installation time and potential leak points. The recommended tightening torque of 8 Nm (6 ft lb) for 1/2" connections ensures secure joints without over-tightening. Follow a diagonal star pattern when tightening bolts to achieve uniform pressure distribution.

Longevity & Low Maintenance

Engineered for a 50-year operational life, the elbow requires minimal maintenance due to its resistance to abrasion, UV radiation, and microbial growth. Its non-stick surface prevents scaling and fouling, reducing downtime for cleaning or replacement.

FAQ

What industries is this elbow suitable for?

Ideal for semiconductor manufacturing, chemical processing, pharmaceuticals, water treatment, and food & beverage industries, where corrosion resistance and high purity are critical.

Can it handle high-temperature applications?

Yes, it operates from -40°C to +140°C, but pressure ratings decrease at elevated temperatures. For example, at 100°C, the pressure rating may reduce to 100 psi (7 bar).

How do I ensure a leak-free connection?

Use butt welding with compatible PVDF pipes and follow ASTM D2657 fusion guidelines. Always check for surface cleanliness and maintain a 0.5–1 mm root gap during welding.

Is it NSF/ANSI 61 compliant?

Yes, the elbow meets NSF/ANSI 61-G & 372 standards for potable water applications, ensuring safety in drinking water systems.

What certifications does it hold?

Certifications include FDA approval, ASTM D2122-22, ISO 1043-1:2011, and NSF/ANSI 61 for water contact.

Quality Assurance

Stringent Testing

Each elbow undergoes 100% pressure testing at 1.5x the rated pressure to verify structural integrity. Non-destructive testing (NDT) methods like visual inspection and dimensional analysis ensure compliance with international standards.

Material Traceability

Manufactured from virgin Kynar® PVDF resin, the elbow’s material origin is fully traceable. Certificates of Compliance (CoC) and Material Safety Data Sheets (MSDS) are provided upon request.

Warranty

Backed by a 2-year limited warranty, the product guarantees performance against defects in material and workmanship. Extended warranties are available for bulk orders.

Technical Specifications