SH(V) Mechanical Seal

SHV webGreat for sealing boiler feed pumps

Features

  • Cartridge design
  • Single seal
  • Balanced
  • Multiple springs
  • Stationary spring loaded unit
  • Shrink-fitted seal face

Advantages

  • Deformation-optimized seal for high pressures and high sliding velocities (static up to 500 bar (7,250 PSI) and dynamic up to 150 bar (2,175 PSI))
  • Economical due to standardized inner components
  • High flexibility due to adaptation of the connection parts to the pump seal chamber
  • Insensitive to shaft deflections due to stationary design
  • Pre-assembled unit for quick and easy installation
  • Suitable for use in compliance with API 682, type ES
  • Version with loose-fitted seal face available, for extreme applications
  • Only small number of components

Operating range

  • Shaft diameter: d1* = 40 ... 250 mm (1.57" ... 9.84")
  • Pressure: p1 = 150 bar (2,175 PSI)
  • Temperature: t = +200 °C (+394 °F),
  • Sliding velocity: vg = 60 m/s (197 ft/s)
  • Axial movement: ±3 mm

* Other sizes on request

Materials

  • Seal face: SiC-C-Si silicon impregnated carbon (Q3), Carbon graphite antimony impregnated (A)
  • Seat: Silicon carbide (Q)
  • Secondary seals: FKM (V), EPDM (E), FFKM (K)
  • Springs: Hastelloy® C-4 (M)
  • Metal parts: CrNiMo steel (G), Duplex (G1), Super Duplex (G4), Titanium (T2), Hastelloy® C-4 (M)

Standards and approvals

  • API 682 / ISO 21049
  • Recommended applications
  • Oil and gas industry
  • Refining technology
  • Petrochemical industry
  • Chemical industry
  • Power plant technology
  • Pulp and paper industry
  • Water and waste water technology
  • Hot water
  • Sour water
  • Caustic soda
  • Amines
  • Crystallizing media
  • Crude oil
  • Process water
  • Crude oil feed pumps
  • Injection pumps
  • Multiphase pumps

Recommended piping plans

  • API Plan 11
  • API Plan 13
  • API Plan 31
  • API Plan 32
  • API Plan 41
  • API Plan 61
  • API Plan 62

 

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