Liquid Hydrocarbon Pipeline Seals
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.
Answer our pipeline questions to guide your search
Find your perfect pipeline seal
Answer any question that applies.
What process fluids are you transporting?
Do you have a preferred secondary containment technique?
Do you have a preferred seal arrangement?
Type 8648VRS Single Seal
Type 8628VSC Non-contacting Secondary Containment Seal
Type 8648VRS Dual- pressurized Seal
Type 8648SC Dry-running Secondary Containment Seal
SCB Plan 66A Secondary Containment Device
Liquid Filtration Solutions, Seal Support Systems & Membrane Disc Couplings
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What process fluids are you transporting?
a. Crude oil
c. Flashing hydrocarbons
d. Multiphase liquid pipeline
b. Refined products
a. Crude oil
Type 8648VRS Single Seal with hard faces
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
Available as a single, dual-pressurized or dual- unpressurized arrangement
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b. Refined products
c. Flashing hydrocarbons
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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d. Multiphase liquid pipeline
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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Learn more
Learn more
Learn more
Learn more
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Do you have a preferred secondary containment technique?
a. Secondary containment bushing
b. Non-contacting containment seal
c. Dry-running containment seal
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 containmnet 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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Learn more
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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Learn more
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
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Type 8648VRS Dual-pressurized Seal
Learn more
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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Type 8628VSC Non-contacting Secondary Containment Seal
Learn more
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
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Type 8648SC Dry-running Secondary Containment Seal
Learn more
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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SCB API Plan 66A Secondary Containment Device
Learn more
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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Connect with an expert
Select an answer to view product match.
Select an answer to view product match.
Liquid Filtration Solutions
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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Seal Support Systems
Click for more product information.
Type 8648SC Dry-running Secondary Containment Seal
Learn more
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
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Select an answer to view product match.
b. Single seal
b. Single seal
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
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Learn more
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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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
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-
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
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Learn more
Do you have a preferred seal arrangement?
d. Dual-unpressurized with dry-running containment seal
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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Learn more
a. Secondary containment bushing
b. Non-contacting containment seal
c. Dry-running containment seal
a. Dual-pressurized seal
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
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a. Dual-pressurized seal
d. Dual-unpressurized with dry-running containment seal
e. Dual-unpressurized with non-contacting containment seal
c. Single seal with containment bushing
a. Crude oil
a. Crude oil
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 standard to handle lighter viscosity fluids
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b. Refined products
Type 8648VRS
Hard (silicon carbide) faces are standard to handle higher (lower) viscosity fluids and high-torque application and for abrasive wear resistance
Laser face grooved mating ring for use on flashing hydrocarbons
Available as a single, dual pressurized or dual un-pressurized arrangement
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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 standard to handle lighter viscosity fluids
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Learn more
Type 8648VRS
Hard (silicon carbide) faces are standard to handle higher (lower) viscosity fluids and high-torque application and for abrasive wear resistance
Laser face grooved mating ring for use on flashing hydrocarbons
Available as a single, dual pressurized or dual un-pressurized arrangement
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-
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 standard to handle lighter viscosity fluids
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Learn more
c. Flashing hydrocarbons
Type 8648VRS Dual Pressurized Seal
Learn more
Premium seal face materials permit sealing of difficult services at high operating pressures
Hard (silicon carbide) faces are standard to handle higher viscosity fluids and high-torque application and for abrasive wear resistance
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-
Available as a single, dual pressurized or
non-pressurized seal arrangement
Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang up
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d. Multiphase liquid pipeline
Do you have a preferred seal arrangement?
Select an answer to view product match.
a. Dual Pressurized
b. Single seal
c. Single with containment bush
d. Dual Un-pressurized with Dry Running Containment Seal
e. Dual Un-pressurized with Non Contacting Containment Seal
Type 8648VRS Dual Pressurized 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.
-
-
Available as a single, dual pressurized or
non-pressurized seal arrangement
Unique patented secondary seal technology prevents wear to the sealing diameter and prevents secondary seal hang up
-
-
Learn more
a. Dual Pressurized
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
Laser face grooved mating ring for use on flashing hydrocarbons
-
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-
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
Available as a single, dual pressurized or dual un-pressurized arrangement
-
-
-
Learn more
SCB Plan 66A Secondary Containment Device
c. Single with containment bush
Learn more
d. Dual Un-pressurized with Dry Running Containment Seal
Learn more
e. Dual Un-pressurized with Non Contacting Containment Seal
Select an answer to view product match.
b. Non-contacting containment seal
a. Secondary containment bush
c. Dry-running containment seal
Learn more
a. Secondary containment bush
Learn more
b. Non-contacting containment seal
Learn more
c. Dry-running containment seal
Learn more
Carbon faces are standard to handle lighter viscosity fluids
Laser face grooved mating ring for use on flashing hydrocarbons
Available as a single, dual pressurized or dual un-pressurized arrangement
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-
Learn more
Learn more
Learn more
Connect with an expert
Learn more
Connect with an expert
c. Single seal with containment bushing
d. Dual-unpressurized with dry-running containment seal
e. Dual-unpressurized with non-contacting containment seal
b. Single seal
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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T-Series Metastream Membrane Disc Couplings
LEARN MORE (Metric)
LEARN MORE (Imperial)
Connect with an expert
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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T-Series Metastream Membrane Disc Couplings
Connect with an expert
LEARN MORE (Metric)
LEARN MORE (Imperial)