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?
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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 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
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
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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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
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
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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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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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
Do you have a preferred seal arrangement?
Type 8648VRS Dual-pressurized Seal
Type 8648VRS Single Seal
SCB Plan 66A Secondary Containment Device
Type 8648SC Dry-running Secondary Containment Seal
Type 8628VSC Non-contacting Secondary Containment Seal
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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
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
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
Do you have a preferred secondary containment technique?
SELECT AN ANSWER TO VIEW PRODUCT MATCH
SCB API Plan 66A Secondary Containment Device
Type 8648SC Dry-running Secondary Containment Seal
Type 8628VSC Non-contacting Secondary Containment Seal
Find your perfect pipeline seal
Answer any question that applies
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
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
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
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
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
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
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
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
Additional Content
Keep your pipeline operations running smoothly
Liquid Hydrocarbon Pipeline Products
Showing 1–4 of 4 products
Type 8648VRS
Single and Dual Non-pusher Elastomer Seal
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 a…
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Type 8628VSC
Non-pusher Secondary Containment Seal
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 the…
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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 8648SC is a standardized non-pusher elastomer, dry running, secondary containment seal designed specifically for non-crude oil hydrocarbon services, with a focus on…
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