MDC’s ISO LF Bolt-Style Half Nipples are essential components for constructing high vacuum systems that require secure, bolt-mounted connections. These fittings are part of MDC’s Large-Flange™ ISO LF series and serve as core elements in modular system builds. Each fitting is manufactured using drawn and TIG-welded 304 stainless steel vacuum tubing, delivering superior structural integrity, chemical resistance, and longevity under high vacuum conditions.

These half nipples are vacuum rated to 1x10⁻⁸ Torr (1.3x10⁻⁶ Pa) and temperature rated to 200°C, making them suitable for a wide range of demanding environments. Available in NW63 through NW500 flange sizes, they feature symmetric, nonrotatable geometries for precise alignment and repeatable assembly. The standard matte finish enhances cleanliness and visibility. Bolt holes are included for mounting—refer to flange size specifications for appropriate fastener requirements.

Industry Applications

MDC’s ISO LF Bolt-Style Half Nipples are designed for use in high-demand vacuum environments such as vacuum metallurgy, semiconductor processing, plasma chambers, space simulation systems, and materials research. Their robust bolt-mount design ensures tight, reliable seals even in high-pressure or high-thermal load situations. Available in a full range of LF sizes, they allow for custom chamber construction, large vacuum manifolds, and industrial coating systems, where durability and vacuum integrity are critical. Trusted across research labs, OEM tools, and aerospace facilities, these fittings deliver performance and consistency.