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?

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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

Type 8648VRS

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 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

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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

Type 8648VRS

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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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

Type 8648SC

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

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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

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?

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

Learn More

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

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

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

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

Learn More (Metric) Learn More (Imperial)

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Keep your pipeline operations running smoothly

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Liquid Hydrocarbon Pipeline Products

Showing 1–4 of 4 Products

Type 8648VRS

Single and Dual Non-pusher Elastomer Seal

Type 8648VRS is a standardized non-pusher elastomer mechanical seal using patented technology, designed specifically for difficult hydrocarbon oil pipeline applications. It is designed specifically with…

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Type 8628VSC

Non-pusher Secondary Containment Seal

Type 8628VSC is a standardized non-pusher elastomer, dry running non-contacting secondary containment seal designed specifically for refined oil hydrocarbon services, with a focus on meeting…

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Secondary Containment Bushing

Secondary Containment Device for Plan 66A Crude-oil Pipeline Applications

The SCB Secondary Containment Bushing is a standardized, dual-bushing arrangement intended for . . .

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Type 8648SC

Non-pusher Dry running Secondary Containment Seal

The John Crane Type 8648SC is a standardized non-pusher elastomer, dry running, secondary containment seal designed specifically for non-crude oil hydrocarbon services, with a focus…

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