Spring mechanical seal CGSH-K

for pumpmetalsteel

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") 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) 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