Sealmatic - Home Page

GSPH-K

Gas-Lubricated Seals

Product Description

  • 1. Balanced
  • Does not open in the event of buffer pressure failure, self closing at pressure reversal
  • For stepped shafts
  • Gas-lubricated
  • Rotating spring
  • Single or double seal available
  • Standard version with U-grooves, V-grooves optional (dependent of direction of rotation)

Details

Item No. Description
1.1 Sliding face
1.2 O-Ring
1.3 Thrust ring
1.4 Drive collar
1.5 Spring
1.6 Set screw
2 Seat
3 O-Ring

Technical Features

  • Applicable as containment seal acc. to API 682
  • Contact-free operation, no friction
  • No differential pressure required with hard/ soft material combination

Typical Industrial 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 environment (single seal)
  • Fans
  • Small steam turbines
  • Blowers
  • Roots compressors
  • Pumps

Notes

Options:
Cooling or heating flange
Flush
Polymerization barrier

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

EN 12756
API 682 / ISO 21049

Performance Capabilities

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

BSH-D
 
Standard Cartridge Seals
Mechanical Seals As Per API 682
Split Seals
Engineered Seals For Demanding Applications
Standard Mechanical Seals For Pumps & Compressors
Mechanical Seals For Agitators, Mixers, Kneaders & Reactors
Supply Systems & Components
Gas Lubricated Seals for Pumps & Agitators
API 682 / ISO 21049
Technical Information