stainless steel lap joint flange

Product Description

Stainless Steel Loose Flange (also known as Loose Expansion Joint) is a high-pressure pipeline fitting with a floating connection design. Its unique structure features a flange ring that is loose around the pipe rather than welded directly, compressing against the sealing surface. Thanks to its exceptional compensation capability and corrosion resistance, it is ideal for high-pressure, high-purity pipeline systems that require frequent cleaning, sanitization, or have strict requirements for thermal expansion and contraction.

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Product Specifications & Parameters

Materials: 304 / 304L / 316 / 316L / 321 / 310S / 2205 / 2507 Duplex Stainless Steel, custom materials available
Applicable Standards: ASTM, EN, DIN, DIS, GB, etc
Pressure Class: PN6-PN160 / Class150-Class2500
Size Range: DN50 ~ DN2000 (NPS 2" ~ 80")

Applications

Petrochemical, Nuclear Power, Power Desulfurization, Shipbuilding & Heavy Industry, Pharmaceutical Engineering, Food & Beverage Processing, High-Purity Gas Transportation, and infrastructure projects with high expansion compensation requirements for large-diameter pipelines.

Key advantages

Easy to install, compensates for thermal expansion and contraction
Suitable for large diameters with better cost performance
Reliable installation and easy maintenance

Contact Us

If you need quotations, catalogues, samples or customized flange solutions, please provide us with type, size, material, pressure and standard, we will reply within 12 hours.

Packaging & Transportation

Standard export packaging: Wooden cases/pallets, with foam and protective film to avoid scratches and damages during transportation. Support sea, air and express transportation according to customer requirements.