SHI366 seal
SHI366 seal

Features mechanical seal shi366

  • Robust seal design – especially for demanding crude oil applications
  • Compact cartridge seal for small seal chambers
  • Single unpressurized seal with containment high-pressure throttle design
  • Stationary spring loaded unit
  • Balanced seal faces in materials with high thermal conductivity and strength
  • Inserted seal face
  • Multi-point injection of the flush fluid optional
  • Seal faces can be equipped with lubrication enhancing hydropads and/or DiamondFace technology


Advantages mechanical seal shi366

  • High performance seal design for alternating media properties and operating conditions with high pressures and sliding velocities
  • Low amount of heat generation, hence minimal temperature rise in the seal faces
  • Seal faces have soft torque transmission
  • Seal faces are shrouded in steel colars so that hey cannot break apart in pieces in an emergency case
  • Resistant to alignment issues between the pump case and shaft because of stationary springs
  • Atmosphere side high pressure double throttle design suitable for full product pressure
  • Seal face materials are resitant to solids in the pumped fluid
  • Optimized for operation also with sand or particles

Operating range mechanical seal shi366

  • Shaft diameter:
    d1* = 50 … 150 mm (1.97″ … 5.91″)
  • Pressure: p1 = 100 bar (1,450 PSI),
    Static: up to 150 bar (2,175 PSI),
  • Dynamic: up to 100 bar (1,450 PSI)
  • Temperature: t = -20 … +100 °C (-4 … 212 °F)
  • Sliding velocity: vg = 50 m/s (164 ft/s)
  • Axial movement: ±1 mm

Materials mechanical seal shi366

  • Seal face:
    Silicon impregnated carbon (Q3), DiamondFace
  • Stationary seat: Silicon carbide (Q2), DiamondFace
  • Secondary seals: FKM (V), FFKM (K)
  • Springs: Hastelloy® C-4 (M)
  • Metal parts: CrNiMo steel (G), Duplex (G1), Super Duplex (G4), Titan (T2), Hastelloy® C-4 (M)
1Seal face
2Face housing
4Shaft sleeve
6Set ring
7High pressure throttle ring
8Leakage collection
9Throttle ring

Recommended applications seal shi366

  • Pipeline systems
  • Tank farms / storage tanks
  • Oil & gas production