Liquid Hydrocarbon Pipeline

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.

What process fluids are you transporting?

SELECT AN ANSWER TO VIEW PRODUCT MATCH

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

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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

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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

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Do you have a preferred seal arrangement?

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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

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Do you have a preferred secondary containment technique?

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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

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What process fluids are you transporting?

Do you have a preferred seal arrangement?

Do you have a preferred secondary containment technique?

Pipeline Seal Solutions

Type 8648VRS Single Seal

Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
For crude oil applications, hard (silicon carbide) faces are standard to handle higher viscosity fluids and high torque application and for abrasive wear resistance
Premium seal face materials permit sealing of difficult services at high operating pressures
Alternative materials are available for light and flashing hydrocarbons

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Type 8648VRS Dual-pressurized Seal

Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang-up
Static reverse pressure capability on the inboard seal
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

Learn more

SCB API Plan 66A Secondary Containment Device

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

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Liquid Filtration Solutions

Filters can be applied to almost any liquid application
Filters in duplex configuration to ensure adequate, uninterrupted filtration of the process flow when changing the filter element
Patented elements remove particle contamination and maximize reliable operation of the machine

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Seal Support Systems

API Plan P53B: An accumulator-based seal support system that utilizes a bladder to maintain system pressure to a dual-pressurized seal
API Plan P54/P55—Provides a positive flow and pressure of barrier fluid to a dual-pressurized seal
API Plan 54/P55 is typically preferred where flow and heat removal capacity exceed that of API Plan 53B

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T-Series Metastream Membrane Disc Couplings

Membrane (disc) couplings, incorporating stainless steel scalloped membranes, with metric or imperial flange hardware
Specially designed to meet API 610 (ISO 13709) and ISO 14691 standards
Center unit replacement is quick and easy to maximise your equipment running time
Fit-and-forget reliability

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Additional Content

Two men in safety vests and hard hats working on a machine

Case Studies

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A close up of a pipeline with a large industrial plant in the background

Brochures

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A woman in a hard hat and safety vest holding a laptop

Videos

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