PSRN

• Safe operation (no fractures) because of seal face locking by square pin
• Spring unit averted from the product so no sticking and clogging of the springs
• Suitable for pressure reversals
• Operation in vacuum without additional seat locking possible
• No damage of the shaft by a dynamically loaded O-Ring
• Small installation sizes
• Best suitable for conversions, no adaptations of the pump
• Insensitive to solid containing and abrasive media
• Advantages of a balanced seal even with plain shafts
• Insensitive to shaft movements because of the stationary design

• Single seal
• Balanced
• Independent of direction of rotation
• Stationary springs
• Dual seals in tandem as well as back-to-back arrangements (also in combination with H10 seal)

• Shaft diameter: d = 18 ... 100 mm (0.71" ... 3.94")
• Pressure: p1*) = 25 bar (363 PSI)
• Temperature: t = -40 ^oC ... +220 ^oC (-40 ^oF ... 428 ^oF)
• Sliding velocity: vg = 20 m/s (66 ft/s)
• Axial movement: ±1.0 mm

* Additional seat locking is not needed in vacuum operation. For operation under vacuum it is necessary to arrange for quenching on the atmosphere side.