ISO Vacuum Nipples - Weld-Free Straight Connections

ISO-LF Half nipple Vacuum ISO nipple flanges China

ISO Flanges & Fittings / ISO Nipples / ISO-LF Half Nipple Vacuum Half nipples are manufactured with a flange on one end and raw tubing on the other. They can be used with quick connection fittings to make a vacuum tight connection without welding. They are often welded onto a custom vacuum system or instrument by a customer with in-huse welding capabilities.

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ISO-LF Full Nipples Vacuum ISO Nipples Flanges Fittings Stainless steel China Wholesale

ISO full nipple, vacuum full nipples are manufactured with a flange on one end and raw tubing on the other. full nipples can be used with quick connection fittings to make a vacuum tight connection without welding.

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ISO-LF Half nipple Vacuum ISO nipple flanges China

Nipple, half, ISO, material: SS304/SS316, Sizes: ISO63-ISO500. ISO half nipples seal material: Viton, silicone, Vacuum half nipples application:high vacuum system.

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Dual sealing surface

Dual sealing surface flatness ≤0.03mm ensures uniform gasket compression without deformation.

Simultaneous passivation

Simultaneous passivation of internal and external surfaces meets ASTM A967 nitric acid passivation standards.

Precisely controlled wall thickness

Precisely controlled wall thickness tolerance (±0.1mm) prevents turbulence caused by sudden flow path changes.

News

KF Clamp Tightening: How Much Torque Is Actually Enough?

Determining adequate tightening torque for ISO-KF clamp connections, with size-based reference ranges and practical “eno...

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KF25 vs KF40 vs KF50: Selecting by Pump Speed and Line Length, Not Just Similar Inner Diameter

Selecting among KF25, KF40 and KF50 quick-connect flange sizes by evaluating how line conductance limits effective pumpi...

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Why KF Quick-Connect Fittings Are So Widely Used in Modular Vacuum Systems

Learn why KF quick-connect fittings are widely used in modular vacuum systems. Compare KF with ISO and CF flanges, revie...

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Why KF Seals Fail: Centering Ring & O-Ring Guide

Most KF vacuum seal failures trace back to the centering ring or O-ring — not the clamp. Learn how to select, match, and...

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