Zero Length Reducers, manufactured from corrosion-resistant 304 stainless steel (304ss), are engineered for precise flange size transitions within the Conflat® (CF) flange family. The term "zero length" indicates that the reducer’s total thickness is equivalent to the thickness of a single flange, minimizing system length changes while enabling reliable flange mating across different sizes.

These reducers feature a nonrotatable geometry for consistent alignment and are designed with clearance and blind-tapped bolt holes to accommodate varied installation requirements. Compatible with both OFE copper and optional FKM elastomer gaskets, the reducers maintain ultrahigh vacuum (UHV) system integrity and performance.

Key Features

UHV Rated: Leak tight to 1x10⁻¹³ Torr (1.33×10⁻¹¹ Pa)
High Temperature Capability: Bake-out rated to 450°C (842°F)
Material: Constructed from 304 stainless steel for durability and corrosion resistance
Geometry: Nonrotatable design ensuring precise flange alignment
Gasket Compatibility: Accepts OFE copper and optional FKM elastomer gaskets
Bolt Hole Options: Available with clearance and blind-tapped bolt holes
Conflat® Compatible: Fully compatible with standard CF flange systems
Zero Length Design: Thickness equals one flange, minimizing system length changes

Applications

Zero Length Reducers are essential in UHV systems for adapting flange sizes without altering overall system length. Common applications include vacuum system upgrades, experimental apparatus modifications, instrumentation interfaces, and maintenance of vacuum chambers in semiconductor manufacturing, surface science, particle accelerators, and research laboratories. Their compact design preserves vacuum conductance and pumping speed while providing flexibility in vacuum system configuration.