Lens Ring Joint Gasket – a high‑performance metal sealing solution designed for extreme pressure and temperature applications. Featuring a spherical sealing face that contacts the conical flange surfaces, this forced‑seal gasket provides reliable leakage control in critical pipe connections. As a leading China lens ring gasket manufacturer, Kaxite supplies both perforated and blind types in a wide range of materials – from soft iron and stainless steels to exotic alloys like Inconel, Monel, and Hastelloy. Compliant with API 6A, ASME B16.20, DIN, and other international standards, our lens ring gaskets are trusted in oil & gas, petrochemical, and power generation industries worldwide.
A Lens Ring Joint Gasket, also known as a lens gasket or ball‑face gasket, is a forced‑seal metal component used primarily in high‑pressure piping systems. Its distinctive spherical (lens‑shaped) sealing surface contacts the conical sealing faces of the mating flanges, creating a line contact that deforms slightly under preload to form a leak‑tight seal. This design offers excellent alignment tolerance, large expansion compensation, and reliable performance even under severe thermal cycling.
Kaxite manufactures two main types: perforated lens ring gaskets (with a central hole) for through‑flow pipe connections, and blind lens ring gaskets for sealing blind flanges or closures. Both types are produced from high‑quality forgings, rolled materials, or pipes, ensuring superior mechanical properties. As a premier China lens ring gasket supplier, we offer a comprehensive range of materials and custom sizes to meet your exact specifications.
Perforated Type
For standard pipe connections
Blind Type
For blind flange closures
Internal pressure increases sealing force – ensures leak‑tight performance in high‑pressure systems.
From -196°C cryogenic to 1000°C high‑temperature – suitable for the most demanding applications.
Spherical surface naturally centers itself in the conical flange seat – simplifies assembly.
Soft iron, 304/316 SS, Inconel, Monel, Hastelloy, Titanium – we match your media requirements.
We manufacture any standard or non‑standard size according to API, ASME, DIN, or your drawings.
Manufactured under API 6A and ISO 9001:2015 – full traceability and quality assurance.
| Parameter | Value / Range |
|---|---|
| Gasket Factor (m) | 5.50 – 6.50 |
| Design Pressure | ≤ 32 MPa (higher on request) |
| Design Temperature | -196°C to +1000°C (material dependent) |
| Minimum Pre‑Tightening Stress (y) | 126.6 – 182.8 MPa |
| Hardness Requirement | 15–20 HB lower than mating flange |
Kaxite offers a broad spectrum of materials for lens ring gaskets, ensuring compatibility with virtually any service condition:
* Other alloys available upon request.
Kaxite manufactures lens ring gaskets in strict compliance with international standards, ensuring interchangeability and performance:
For other ring joint gasket types, explore our API Ring Joint, Oval, Octagonal, BX, and RX gaskets.
As a leading China lens ring joint gasket manufacturer, we bring decades of experience and a commitment to excellence:
To source lens ring gaskets wholesale from Kaxite, please provide:
Need assistance? Send your inquiry and our technical team will respond within 24 hours.
★ China's Trusted Lens Ring Joint Gasket Manufacturer – Request Your Quote
Contact Kaxite for factory‑direct pricing, custom alloys, and expert technical support.
Address
No 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
