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 Multi-CF™  Fittings (UHV Vacuum Fittings and Vacuum Chambers):  

 PRODUCT GUIDE and DESIGN THEORY


UHV chambers, housings, couplers, flanges

Kimball Physics Multi-CF chambers, housings, couplers, flanges
 

 

Click on a picture for a larger view.

Click on an underlined MCF part type for its PDF specification pages and drawings.

Kimball Physics UHV Multi-CF™ Fittings is a unique line of ultra high vacuum fittings including modular chambers, complex instrument housings, apparatus mounts and flanges. These components are compatible with standard ConFlat* (CF) flanges and provide maximum internal volume for a given CF size. Multiple ports provide exceptional internal access. The  components are made of 316 stainless steel, 304 stainless steel, or titanium, and are serial numbered for traceability. All fittings are UHV bakeable to 450oC and have mirror-like, UHV-clean interior-surface finishes.

In addition to having a variety of unique complex shapes, the Multi-CF™ Fitting line uses a flexible method of mounting apparatus inside of vacuum. Called the Groove–Grabber / Grabber–Groove system, this technology permits easy mounting of almost any kind of equipment or device, from the inside diameter of any prepared flange or port.

The table below presents the basic part types.  Several sizes are available for most types. Sizing is based on the largest CF port of the fitting.
All Kimball Physics Multi-CF  flange fittings are compatible with industry-standard ConFlat* flanges.

UNIQUE FEATURES / DESIGN CONSIDERATIONS  (214KB PDF)

Part Numbers & Prices  part numbers, sizes, and prices,
CF Dimensions  basic conflat dimensions (bore diameter, gasket id, etc)
Part Numbering Multi-CF™ part numbering system
Bolts bolt sizes and quantities for parts. High clearance copper gaskets, standard copper gaskets, and 12 point bolts are available.
 

   Links to sections in the table below:

 SPHERICAL CHAMBERS
 
MULTI-PORT FITTINGS

COUPLERS
FLANGES

GROOVE GRABBERS
PUMPS

SPHERICAL CHAMBERS

Spherical Cube,UHV Vacuum Fittings
SPHERICAL CUBES

UHV chamber
11/3CF, 23/4CF, and 41/2CF
ports, optional corner ports
Spherical IDs: 1.1", 2.6", and 4.8"  dia
Part Numbers & Prices

UHV vacuum chamber, expanded spherical cubes
EXPANDED SPHERICAL CUBES

NEW  High port density UHV chamber
23/4CF, 41/2CF, and 6CF  sizes
Spherical IDs: 3.3", 6.5" or 8.4" dia. for additional ports
Part Numbers & Prices

Spherical Triangle, UHV Vacuum Fittings
SPHERICAL TRIANGLES

 UHV chamber
11/3CF and 23/4CF sizes
Spherical IDs: 1.1" or 2.6" dia.
Part Numbers & Prices

Spherical Square: UHV Vacuum Fittings
SPHERICAL SQUARES

UHV chamber
41/2CF, 6CF and 8CF sizes
2 large ports, 4 smaller, plus optional 11/3CFs
Spherical IDs: 3.6" to 8.0" dia.
Part Numbers & Prices

Spherical Irregular Pentagon: UHV Vacuum Fittings
SPHERICAL IRREGULAR
PENTAGON

UHV chamber
2 large ports and 5 smaller
Spherical ID: 4.8" dia.

Part Numbers & Prices

Spherical Hexagon: UHV Vacuum Fittings
SPHERICAL HEXAGONS

UHV chamber
23/4CF, and 8CF sizes
2 large ports and 6 smaller
Spherical IDs: 1.9" or 8.0" dia.
Part Numbers & Prices

Spherical Octagon:UHV Vacuum Fittings
SPHERICAL OCTAGONS

UHV chamber
41/2CF, 6CF and 8CF sizes
2 large ports and 8 smaller
Spherical IDs: 3.2" to 6.65" dia.
Part Numbers & Prices

Exteded Octagon:UHV Vacuum Fittings
EXTENDED OCTAGON

Very high port density
UHV chamber
Two 8CF, eight 23/4CF, sixteen 11/3CF
Part Numbers & Prices

Magdeburg Sphere, UHV Vacuum Chamber
MAGDEBURG SPHERES

High port density easily customized
Expanded bores
4.4", 6", 8", 10" spheres, ports placed as ordered
Drawings of spheres (PDF)

Part Numbers & Prices

Magdeburg Hemispheres (2 joined) UHV Vacuum Chambers
MAGDEBURG HEMISPHERES

UHV chamber Use alone or join two hemispheres to make one sphere
41/2CF size
Spherical ID: 3.6" dia.
Part Numbers & Prices

 

MULTI-PORT FITTINGS

COUPLERS

Flange Multiplexer,UHV Vacuum Fittings
FLANGE MULTIPLEXERS

UHV multiple port adaptors.
Multiple 11/3CF and  23/4CF ports with a  23/4CF rotatable flange
Part Numbers & Prices

Weldable Cluster, UHV Vacuum Fittings
WELDABLE CLUSTERS

NEW  UHV multiple port adaptor
One 6" weld lip, with four 23/4CFs,
and one 41/2CF port. Other styles available.
Part Numbers & Prices

Flange Crosses,  UHV Vaccuum
FLANGE CROSSES

NEW Six port UHV cross fitting
Two 23/4CF,  four 11/3CF ports, or Four port UHV cross fitting
Two 23/4CF,  two 11/3CF ports

Part Numbers & Prices

Close couplers, various styles,UHV Vacuum Fittings Close couplers, various styles, UHV Vacuum Fittings
CLOSE COUPLERS

NEW SIZES  Bolt reversing coupler for joining tapped fittings

Non-Rotatable

11/3CF, 23/4CF, 41/2CF
Most with grabber grooves

 Rotatable

23/4CF, 41/2CF, 6CF and 8CF
With grabber grooves

Part Numbers & Prices

FLANGES

PUMP

Thin Flanges, various sizes, UHV Vacuum Fittings,
THIN FLANGES

NEW  Double-sided flanges
Double density bolt holes
11/3CF, 23/4CF, 41/2CF, 6CF, 8CF
Thickness: 0.175" or 0.400"
with grabber grooves
Available as blank

Part Numbers & Prices

High Clearance Copper Gaskets machined with expanded IDs.
Standard copper gaskets and 12 point silver-plated bolts also available.

Flange Adaptors, UHV Vacuum Fittings
FLANGE ADAPTORS

 NEW SIZE Adapt standard flanges for use with groove grabbers.
Two 23/4CFs or one 23/4CF  with one or two 11/3CF or
Two 41/2CF
 Part Numbers & Prices

Perimeter Weld Flanges, various sizes, UHV Vacuum Fittings

PERIMETER WELD FLANGES

Weld into UHV chambers
Double density bolt holes
Most with grabber grooves
11/3CF, 23/4CF, 41/2CF, 6CF, 8CF, 10CF

Part Numbers & Prices

Flange Blanks, UHV Vacuum Fittings
FLANGE BLANKS

NEW Solid flanges with grabber grooves
23/4CFs or 41/2CF
 

Kernco Modion Ion pump/gauge
Kernco MODION
ION PUMP / GAUGE

NEW  Power supply module
Pumping speed: 0.5 l/sec
Operating range: 10-4 to 10-8 torr
Titanium cathode
Visual monitoring LED bar
Switchable wall adaptor and battery back-up
Remote monitoring and control

Call for Prices

GROOVE GRABBERS  

Groove Grabbers, various styles,UHV Vacuum Fittings
Individual Groove Grabbers
with eV Parts
 

Grabber Grooves Assembled, UHV Vacuum Fittings
Groove Grabbers assembled in Close Coupler with eV Parts
                               GROOVE GRABBERS
                                 
  • Internal mounting system
  • Attach to CF grabber grooves
  • Compatible with eV Parts     
  • Fit 23/4, 41/2, 6, & 8 CF sizes
Part Numbers & Prices
   
CUSTOM Multi-CF™ FITTINGS
ALSO AVAILABLE

Kimball Physics welcomes custom orders and design suggestions for new Multi-CF components.
UHV Vacuum Chamber

The large Magdeburg Sphere chambers and Expanded Spherical Cubes are especially popular for customization. Many different  combinations of port sizes are possible, some with welded extensions.
Request information by e-mail or consult the Kimball Physics engineering department directly via our toll free number: 888-KIM-PHYS (888-546-7497)
 

See Also
eV Parts Vacuum Components

designed to work with Multi-CF™ Vacuum Fittings
Plates, Rods, Brackets, Cylinders, Tubes,
Insulators, Spacers, Split Tubes, Balls, Fasteners

Some eV Parts® and a partially built UHV apparatus

* The ConFlat flange was invented by Bill Wheeler at Varian Associates; ConFlat is a registered trademark of Varian Inc.
MULTI-CFTM LINE PATENTS: The Multi-CF line is covered by Kimball Physics Inc. patents: 5,593,123;  5,625,947; 5,660,418;  5,671,956;  6,270,045. Additional Patents pending.

Underlined MCF part types link to PDF specification pages.
If you need a PDF reader, click the Adobe logo to download it now.


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