ELECTRICAL BREAKS
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ELECTRICAL BREAKS Features > 14” (355.6mm) non-rotatable Del-Seal CF ConFlat® flange mounts > 11.75” (298.4mm) I.D. to maximize flow > Tapered ceramic-to-metal seal design geometry > UHV-compatible materials MDC Precision offers a complete line of vacuum breaks, also known as electrical isolators, for demanding ultra-high vacuum (UHV) applications and environments. Composed of metal adapters brazed to each end of an insulating ceramic tube that provides voltage isolation between the conductive metal ends, vacuum breaks provide an electrical break between the vacuum chamber and other external components, as well as electrostatic discharge (ESD) protection of sensitive components in the vacuum system. Constructed using high-purity alumina ceramic insulators hermetically bonded to low-expansion metal Kovar® sleeve adapters, the electrical breaks are attached to other vacuum components such as flanges, bellows, chambers and weldables using MDC’s proprietary UHV brazing techniques. All materials and braze alloys used are vacuum grade and chosen for their specific characteristics and ability to maintain the integrity of the seals for use in demanding applications and environments. A maximum thermal gradient of 25°C per minute must be observed to preserve the life of the seal. Weldable vacuum breaks are typically installed using one of the following fusing processes: laser, electron-beam or TIG welding. > Large capacity pass through > Enhanced seal joint integrity > Exceptional hermiticity and performance > High purity and reliability > 0.030” (0.8mm) flange-to-flange parallelism for secure connections, leak-free operation Optional > Custom configurations upon request > Bellows > Rotatable flange mount(s) > Non-magnetic, 316LN and titanium materials Specifications Materials Flanges Adapters Insulator 304SS (UNS S30400) Kovar (UNS K94610) 92% min alumina ceramic Vacuum Range UHV 1.0 x 10-10 Torr Temperature Range Large Diameter Vacuum Ceramic Break Voltage (VDC) Ceramic Tube Internal Diameter (ID) Ceramic Thickness Ceramic Isolation Length Del-Seal CF ConFlat Flange Size Thermal Gradient 25°C / minute maximum RoHS / REACH Compliant Applications > Fusion Energy > Particle Accelerators > Research Equipment > UHV All dimensions shown are for reference only. MDC Precision >30962 Santana Street, Hayward, California 94544 USA >+1.510.265.3500 >+1.800.443.8817 >sales@mdcprecision.com >www.md

ELECTRICAL BREAKS Del-Seal CF Flange Size Flange Type Quantity/ Package Flange Size Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts Copper Gaskets / Hexagonal Bolts © 2021. All data given is based on representative samples of the materials listed. MDC shall not be responsible for the products’ performance should the customer fail to use the products for the intended use or in accordance with the User Guide. Additionally, MDC shall not be...