Liquid Hydrocarbon Pipeline

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Which pipeline seal is right for you?

At John Crane, we understand the importance of pipeline integrity. A seal failure not only means production losses up to millions of dollars per day, but could also lead to long-term environmental consequences. If you are unsure which sealing solution is the best fit for your pipeline, the questions below will help you.

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What process fluids are you transporting?

Type 8648VRS Single Seal with hard faces

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • LaserFace grooved mating ring for use on flashing hydrocarbons
  • Available as a single, dual pressurized or dual- unpressurized arrangement
Learn More

Type 8648VRS Single Seal with carbon faces

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • Carbon faces are utilized when handling lighter viscosity fluids
  • Available as a single, dual-pressurized or dual-unpressurized arrangement
Learn More

Type 8648VRS Single Seal with LaserFace ®

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • LaserFace grooved mating ring for use on flashing hydrocarbons
  • Available as a single, dual pressurized or dual- unpressurized arrangement
Learn More

Type 8648VRS Dual-pressurized Seal

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Hard faces are standard to handle higher viscosity fluids and high torque application, as well as abrasive wear resistance
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • Static reverse pressure capability on inboard seal
Learn More
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Do you have a preferred seal arrangement?

Type 8648VRS Dual-pressurized Seal

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Hard faces are standard to handle higher viscosity fluids and high torque application, as well as abrasive wear resistance.
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • Static reverse pressure capability on inboard seal
  • Learn More

    Type 8648VRS Single Seal

  • Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
  • Premium seal face materials permit sealing of difficult services at high operating pressures
  • Hard faces are standard to handle higher viscosity fluids and high torque application, as well as abrasive wear resistance
  • Carbon faces are utilized when handling lighter viscosity fluids
  • LaserFace grooved mating ring for use on flashing hydrocarbons
  • SCB Plan 66A Secondary Containment Device

  • Used as back-up to Type 8648VRS Single primary seal and incorporated into a cartridge
  • Standardized dual-bushing secondary containment device intended for use in conjunction with API Plan 66A
  • Learn More

    Type 8648SC Dry-running Secondary Containment Seal

  • Dry-running containment seal used in tandem with Type 8648VRS and incorporated into a cartridge
  • In response to primary seal leakage, or in the event of a failure, this seal provides containment and directs process flow to flare or drain
  • Can be used without a seal system or in conjunction with a simple API plan to detect any excessive leakage from the primary seal
  • Learn More

    Type 8628VSC Non-contacting Secondary Containment Seal

  • Non-contacting seal used in tandem with Type 8648VRS and incorporated into a cartridge
  • In response to primary seal leakage, or in the event of a failure, this seal provides containment and directs process flow to flare or drain
  • Can be used without a seal system or in conjunction with a simple API plan to detect any excessive leakage from the primary seal
  • Learn More
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    Do you have a preferred secondary containment technique?

    SCB API Plan 66A Secondary Containment Device

  • Used as back-up to Type 8648VRS Single Seal and incorporated into a cartridge
  • Standardized, dual-bushing secondary containment device intended for use in conjunction with API Plan 66A
  • Learn More

    Type 8648SC Dry-running Secondary Containment Seal

  • Dry-running containment seal used in tandem with Type 8648VRS and incorporated into a cartridge
  • In response to primary seal leakage, or in the event of a failure, this seal provides containment and directs process flow to flare or drain
  • Can be used without a seal system or in conjunction with a simple API plan to detect any excessive leakage from the primary seal
  • Learn More

    Type 8628VSC Non-contacting Secondary Containment Seal

  • Non-contacting seal used in tandem with the Type 8648VRS and incorporated into a cartridge
  • In response to primary seal leakage, or in the event of failure, this seal provides containment and directs process flow to flare or drain
  • Can be used without a seal system or in conjunction with a simple API plan to detect any excessive leakage from the primary seal
  • Learn More

    What process fluids are you transporting?

    Do you have a preferred seal arrangement?

    Do you have a preferred secondary containment technique?

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