CGSH-K

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Item	Parts no. to DIN 24250	Description
1.1	472	Sliding face
1.2	412.1	O-Ring
1.3	474	Thrust ring
1.4	485	Drive collar
1.5	477	Spring
1.6	904	Set screw
2	475.1	Seat
3	412.3	O-Ring

1) d1 > 105: 2 mm x 30°
2) d1 > 105: 30°
3) d1 > 105: +0.1
4) d1 > 105: H7
5) 3 x 120°

Features

For stepped shafts
Balanced
Rotating spring
Single or double seal available
Standard version with U-grooves, V-grooves optional (dependent of direction of rotation)
Gas-lubricated
Does not open in the event of buffer pressure failure, self closing at pressure reversal

Advantages

Contact-free operation, no friction
No differential pressure required with hard/soft material combination
Applicable as containment seal acc. to API 682

Shaft diameter:
d1 = 28 ... 125 mm (1.10" ... 4.92")
Pressure: p1 = 25 bar (363 PSI)
Temperature:
t* = -20 °C ... +170 °C (-4 °F ... +338 °F)
Sliding velocity:
vg = 4 ... 25 m/s (13 ... 82 ft/s)

* Depending on resistance of O-Rings

Materials

Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q2),
alternatively: Carbon graphite resin impregnated (B), Silicon carbide (Q1)
Seat: Silicon carbide (Q1, Q2),
Silicon carbide (Q19, Q29) with seal face in Q1 resp. Q2
Metal parts: CrNiMo steel (G)