CF Zero Length Reducers

CF FLANGE SERIES

CF flanges are available with tapped or untapped holes. Tapped flanges are available in UNCUNf or metric threads. Tapped tlanges have through holes, so bolts may protrude slightly from the back of the flange when fastened to an untapped flange. Untapped Cf flanges can be fastened to each other with stainless steel bolts and hex nuts or plate nuts. Plate nuts center themselves over two adjacent holes and can be held in place with one finger while the bolts are tightened. They are avallable for most flange sizes from 1 1/3 to 10 inch (33.96-254mm) ODs. As an alternative to hex head bolts, 12-point bolts are available for CF flanges from 2 3/4 to 10 inch (33.96 to 354mm) ODs. Silver plated bolts eliminate the need for anti-seize compoundin clean room environments.

ASSEMBLY INSTRUCTIONS FOR CF FLANGES

1. Apply a small amount of high temperature anti-seize compound to the bolt threads

2. Check that both flange surfaces are clean and sealing edges are free from nicks and scratches.

3. Using clean, lint free gloves, unpack gasket.

4. Place gasket in the knife edge counterbore of nonrotatable flange.

5.Align the mating hole pattern and leak test grooves.

6. Install the proper bolts and tighten hand tight. Check to see that the flange faces are parallel.

7. Tighten the bolts 1/4 to 1/2 turns using a star pattern until the flange faces are metal to metal.

8. Torque the fasteners to the listed value using the same pattern.

* U.S. manufacturers of CF flanges name them according to their outer diameter measured in inches i.e. a CF600 flange has an outer diameter of approximately 6 inches.

* European identification for these flanges is expressed in a variety of ways; the flange outer diameter is measured in millimeters or the flange inner diameter counterbore (the area machined to accept tubing for welding)is measured in. millimeters or the inner diameter of the largest through bore is measured in millimeters. Measurements are rounded to the nearest millimeter for naming purposes.

* U.S. and Metric CF flanges are compatible. The only difference in design is that metric flanges have a metric bolt thread machined into tapped bolt holes. QiMing can provide both metric tapped flanges on request.

CF ZERO LENGTH REDUCERS

GBA01 Series

* Different size CF flange on both sides

* Enable direct assembly of two different size CF flanges with minimal impact to space needed within your vacuum system.

* At least one and when necessary both flanges have tapped bolt holes

* Use standard CF gaskets to seal

* Pressure range:UHV (approx. 1x10⁻⁹ Torr)

* Temperature range:-200℃ up to 450℃

* Standard materials:SS304(Options:SS304L/SS316L)

	Model for 304	Size	Large Flange	Small Flange	B(Inch/mm)	C(Inch/mm)	N.W./g
	GBA01HM1F35F160754	CF35xCF16	Thru Holes	Metric Thread	0.63"/16	0.5"/12.7	337.8
	GBA01HM1F63F160754	CF63xCF16	Thru Holes	Metric Thread	0.63"/16	0.68"/17.4
	GBA01HM1F63F351504	CF63xCF35	Thru Holes	Metric Thread	1.51"/38.35	0.68"/17.4	1135
	GBA01HM1F100F160754	CF100xCF16	Thru Holes	Metric Thread	0.63"/16	0.75"/19.1
	GBA01HM1F100F351504	CF100xCF35	Thru Holes	Metric Thread	1.51"/38.35	0.75"/19.1	2460
	GBA01HM1F100F632504	CF100xCF63	Thru Holes	Metric Thread	2.51"/63.75	0.75"/19.1
	GBA01HM1F160F160754	CF160xCF16	Thru Holes	Metric Thread	0.63"/16	0.88"/22.3	2115
	GBA01HM1F160F351504	CF160xCF35	Thru Holes	Metric Thread	1.51"/38.35	0.88"/22.3
	GBA01HM1F160F632504	CF160xCF63	Thru Holes	Metric Thread	2.51"/63.75	0.88"/22.3
	GBA01HM1F160F1004004	CF160xCF100	Thru Holes	Metric Thread	4.01"/101.85	0.88"/22.3
	GBA01HM1F200F160754	CF200xCF16	Thru Holes	Metric Thread	0.63"/16	0.97"/24.6
	GBA01HM1F200F351504	CF200xCF35	Thru Holes	Metric Thread	1.51"/38.35	0.97"/24.6
	GBA01HM1F200F632504	CF200xCF63	Thru Holes	Metric Thread	2.51"/63.75	0.97"/24.6
	GBA01HM1F200F1004004	CF200xCF100	Thru Holes	Metric Thread	4.01"/101.85	0.97"/24.6
	GBA01HM1F200F1506004	CF200xCF150	Thru Holes	Metric Thread	6.02"/152.9	0.97"/24.6

Small Flange is avalible with UNC Thread