CF FLANGES CF FITTINGS

Guanyu Tube offers a complete line of CF fittings and CF flanges. One different vacuum fittings type from KF fittings and KF flanges and ISO fittings and ISO flanges. CF fittings are ideal for ultra-high vacuum environments and are ready to use as received. CF Components, CF Fittings and CF flanges are available in a variety of configurations.

CF Stainless Steel Flanges
CF Stainless Steel Nipples
CF Stainless Steel Elbows
CF Stainless Steel Tees
CF Stainless Steel Crosses

Features:

1. CF flanges are designed in accordance with ISO 3669 and can be changed upon request.
2. Flange sizes are from CF 16 to CF250.
3. CF flanges are available in both rotatable and non-rotatable models with through holes or tapped holes.
4. Standard materials are 304 and 316L stainless steel.
5. CF products are supplied with a machining finish. Other finishes are also available.
6. Easy assembly or disassembly
7. The system can afford up to 932℉ (500 °C) for copper gaskets; 399 °F (204 °C) for Viton gaskets. However, sustained heating above 302℉ (150 °C) may result in deterioration of the O-ring.
8. CF flanges are 100 % tested before shipping.
9. Vacuum Range:
- Copper gasket: ≥10-12Torr
- Fluorocarbon FKM (Viton) gasket: ≥10-8 Torr
10. Seal Temperature Range:
- Copper: -325 to 842°F (-200 to 450 °C)
- Fluorocarbon FKM (Viton): -4 to 302°F (-20 to 150 °F)

Applications:

1. High vacuum and ultra high vacuum

1. ROTATABLE FLANCE
2. INNER
3. SCREW
4. FIXED FLANCE
5. GASKET
6. PLATE NUT
7. NUT

1.CF FLANGE
2.SCREW
3.NUT
4.GASKET

Nonrotatable Flange (CF-F)

Flange Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)
–	–	A	B	C	D
CF16	3/4″	1.33″ (33.8)	0.30″ (7.5)	1.06″ (26.9)	0.76” (19.3)
CF40	1 1/2″	2.74″ (69.5)	0.50″ (12.7)	2.31″ (58.7)	1.51″ (38.3)
CF63	2 1/2″	4.47″ (113.6)	0.71″ (18.0)	3.63″ (92.1)	2.51″ (63.7)
CF100	4″	5.97″ (151.6)	0.79″ (20.0)	5.13″ (130.3)	4.01″ (101.8)
CF160	6″	7.97″ (202.5)	0.87″ (22.0)	7.13″ (181.0)	6.03” (153.1)
CF200	8″	9.97″ (253.2)	0.97″ (24.7)	9.13″ (231.8)	8.02″ (203.7)
CF250	10″	13.25″ (336.5)	1.12″ (28.5)	12.07″ (306.5)	10.02″ (254.5)

Rotatable Flange (CF-R)

Flange Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)
–	–	A	B	C	D
CF16	3/4″	1.33″ (33.8)	0.30″ (7.5)	1.06″ (26.9)	0.76″ (19.3)
CF40	1 1/2″	2.74″ (69.5)	0.50″ (12.7)	2.31″ (58.7)	1.51″ (38.3)
CF63	2 1/2″	4.47″ (113.6)	0.75″ (19.0)	3.63″ (92.1)	2.51″ (63.7)
CF100	4″	5.97″ (151.6)	0.85″ (21.5)	5.13″ (130.3)	4.01″ (101.8)
CF160	6″	7.97″ (202.5)	0.94″ (24.0)	7.13″ (181.0)	6.03″ (153.1)
CF200	8″	9.97″ (253.2)	0.97″ (24.7)	9.13″ (231.8)	8.02″ (203.7)
CF250	10″	13.25″ (336.5)	1.12″ (28.5)	12.07″ (306.5)	10.02″ (254.5)

CF Rotatable Flange 90° Elbow

Flange Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)
–	–	A	B
CF16	3/4″	1.68″ (42.7)	1.33″ (33.8)
CF40	1 1/2″	3.15″ (79.9)	2.74″ (69.5)
CF63	2 1/2″	5.56″ (141.3)	4.47″ (113.6)
CF100	4″	8.75″ (222.2)	5.97″ (151.6)

Rotatable Equal Tee

Flange Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)	Dimensions, in. (mm)
–	–	A	B	C	D
CF16	3/4″	1.86″ (47.2)	0.75″ (19.1)	1.33″ (33.8)	3.72″ (94.4)
CF40	1 1/2″	2.46″ (62.5)	1.50″ (38.1)	2.74″ (69.5)	4.92″ (125.0)
CF63	2 1/2″	3.37″ (85.7)	2.50″ (63.5)	4.47″ (113.6)	6.75″ (171.4)
CF100	4″	4.31″ (109.5)	4.00″ (101.6)	5.97″ (151.6)	8.62″ (219.0)

Half Nipples

Flange Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)
–	–	A	B
CF16	3/4″	1.50″ (38.1)	0.62″ (15.7)
CF40	1 1/2″	2.46″ (62.5)	1.37″ (34.8)
CF63	2 1/2″	3.38″ (85.9)	2.37″ (60.2)
CF100	4″	4.33″ (110.0)	3.83″ (97.3)

CF Reducing Cross

Flange Size	Tube Size	Tube Size	Dimensions, in. (mm)	Dimensions, in. (mm)
–	T	Tx	A	B
CF40×CF16	1 1/2″	3/4″	2.46″ (62.5)	1.88″ (47.8)
CF40×CF25	1 1/2″	1″	2.46″ (62.5)	2.29″ (58.2)
CF50×CF16	2″	3/4″	3.22″ (81.8)	2.12″ (53.8)
CF50×CF40	2″	1 1/2″	3.22″ (81.8)	2.71″ (68.8)
CF63×CF40	2 1/2″	1 1/2″	3.38″ (85.9)	2.96″ (75.2)
CF63×CF50	2 1/2″	2″	3.38″ (85.9)	3.48″ (88.4)
CF80×CF50	3″	2″	3.53″ (89.7)	3.72″ (94.5)
CF80×CF63	3″	2 1/2″	3.53″ (89.7)	3.62″ (91.9)
CF100×CF40	4″	1 1/2″	4.29″ (109.0)	3.83″ (97.3)
CF100×CF50	4″	2″	4.29″ (109.0)	4.21″ (107.0)
CF100×CF63	4″	2 1/2″	4.29″ (109.0)	4.13″ (105.0)
CF100×CF80	4″	3″	4.29″ (109.0)	4.02″ (102.0)