CGSH-K Burgmann mechanical seals

CGSH-K

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

Operating range

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

CGSH-K 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)

Standards and approvals

EN 12756
API 682 / ISO 21049

Recommended applications

Chemical industry
Refining technology

Gases and liquids
(single seals only gas)
Gases and liquids which must not get into the atmosphere (dual seal)
Gases not harmful to the enivronment (single seal)

Fans
Small steam turbines
Blowers
Roots compressors
Pumps

Download catalog for more information:CGSH-K

CGSH-K Burgmann mechanical seals

CGSH-K

Features

Advantages

Operating range

CGSH-K Materials

Standards and approvals

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