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Product Group: Cryogenic Breakaway Couplings
Cryogenic Breakaway Couplings
Example Pictures CBC (Breaking Bolt Type):
Example Pictures CBC-C (Cable Release Type):
Example Picture CBC-PERC:
Short DescriptionCBC
Safety Breakaway Couplings (Emergency Release Couplings) with integrated shut-off valves are used to avoid spillage and damage associated with drive and/or pull away incidents when loading and unloading.
DescriptionThe couplings are designed to be the weakest link of the hose line or loading arm.
Suitable for cryogenic liquefied gases (LNG, nitrogen, oxygen, argon, ethylene etc.) down to -196° C.

Four types can be distinguished:
- CBC Breaking Bolt Type 'Industrial Version'
- CBC Breaking Bolt Type 'Marine Version'
- CBC-C Cable Release Type
- CBC-PERC

1) CBC Breaking Bolt Type 'Industrial Version'

Used to protect hose assemblies and loading arms against excessive loads, e.g. due to drive/pull away incidents or rapid removal of the mobile tanker in emergency situations.
Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of tank trucks, rail tankers and ships.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied, either straight or at an angle.

Installation between a hose assembly or loading arm and a fixed point, e.g. pipe system, rail tanker or road tanker connection.
Release by pull at any angle up to 90 degrees.

CBC 'Industrial Type' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
2) CBC Breaking Bolt Type 'Marine Version'

Used to protect hose assemblies against excessive loads, e.g. due to pull away incidents or rapid removal of the vessel in emergency situations.
Typical applications include container discharge, fuel bunkering and loading operations truck-to-ship, ship-to-ship, terminal-to-ship.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied axially. In comparison to the 'Industrial Version' the coupling offers an increased resistance to torsion and bending loads to prevent unwanted separation.

CBC 'Marine-Version' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
3) CBC-C Cable Release TypeUsed to protect hose assemblies against excessive loads. Special type, recommended in transfer systems with the combination of high operating pressure and weak piping structure.

Compared with standard Safety Break Couplings with breaking bolts CBC-C are designed with a clamp system and an external collar with an attached cable.
The tensile force (pulling force) is not transmitted via the hose or loading arm, but by an integrated cable which is attached to a fixed point (pipework, rail tanker or road tanker).
The length of the cable is adjusted slightly shorter than the maximum length of the loading line.

Release forces are almost independent from the internal pressure (working pressure).
After the admitted travel limit of the cable is reached (angle up to 90 degrees), only a small pull is sufficient to actuate the separation.

If the cable reaches the admitted travel limit and a defined pulling force, the external collar is pulled off and clamps are actuated; the coupling will separate and instantly seal the two open ends. There are no loose components which can get lost. After separation the coupling is checked and can be reconnected without spare parts or special tools.
4) CBC-PERC'Powered Emergency Release Coupling' with remote controlled release, additionally passive release as safety backup.
Used to protect hose assemblies and loading arms against excessive loads, and for manual release in emergency situations.

Two activation methods:
1) Pneumatic, remote-controlled release - MannTek supplies this coupling as a system including control and monitoring system
2) At a defined tensile (pulling) force on the transfer line being applied at an angle of up to 90 degrees.
Suitable for the transfer of cryogenic liquefied gases (LNG, nitrogen, oxygen, argon, ethylene etc.) down to -196° C.

Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of ships.

CBC-PERC is a powered version of the CBC with the advantage that it can be released by external overload or manually operated.
In case of a remote controlled release, a Nitrogen gas cylinder will be opened and gas pressure will release the breaking bolts.

CBC-PERC systems require consultation between a MannTek project manager and the operator during the entire planning phase, including risk analysis (RA, HAZOP, HAZID).
SizesCBC 1" (DN 25) up to 12" (DN 300);
CBC-C 2" (DN 50) up to 6" (DN 150);
CBC-PERC 4" (DN 100) up to 8" (DN 200).
ConnectionsNPT thread, DIN/ANSI/TTMA flange – others on request.
PressureWorking pressure:
DN 25 - DN 100: PN 25,
DN ≥ 150: PN 16.
Temperature-196° C up to +85° C.
MaterialBody: stainless steel 1.4404 (AISI 316L),
Seals: PTFE.
Approvals / CertificatesCBC and CBC-C fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
Suitable for the use in potentially explosive atmosphere (ATEX) zone 1.
Approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG).
Type approval DNV GL rules for Liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
TÜV TÜ.AGG 437-11, Lloyd’s Register 0038 RET0271208, TDT-UW-21/16,
EAC TC No. RU Д-SE.MЮ62.B.02151, DNV GL TAP00000RW, DNV GL TAP000012V

CBC-PERC: Type approval DNV GL rules for liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
DNV GL TAP00000X6, DNV GL TAP000012W, Lloyd’s Register 0038 RET0271208.
Product Sheet / Links
Overview Approvals
Brochure CBC
Homepage CBC
Application Photos CBC / CBC-C / CBC-PERC:
Animation Cryogenic Breakaway Couplings with Breaking Bolts (CBC):
Animation Cryogenic Breakaway Couplings with Cable Release (CBC-C):
Animation Cryogenic Breakaway Couplings / Powered Emergency Release Couplings (CBC-PERC):
2
Breakaway Type: CBC Breaking Bolt Type - Industrial Version
Product NameCBC Breaking Bolt Type
Part NumberNC
Short DescriptionIndustrial Version
DescriptionUsed to protect hose assemblies and loading arms against excessive loads, e.g. due to drive/pull away incidents or rapid removal of the mobile tanker in emergency situations.
Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of tank trucks, rail tankers and ships.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied, either straight or at an angle.

Installation between a hose assembly or loading arm and a fixed point, e.g. pipe system, rail tanker or road tanker connection.
Release by pull at any angle up to 90 degrees.

CBC 'Industrial Type' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
Breaking Bolt Forces

Example chart for possible breaking forces (release forces),
for working pressure = max. admissible working pressure.

Sizes1" (DN 25) up to 8" (DN 200).
ConnectionsNPT thread, DIN/ANSI/TTMA flange – others on request.
PressureWorking pressure:
DN 25 - DN 100: PN 25,
DN ≥ 150: PN 16.
Temperature-196° C up to +85° C.
MaterialBody: stainless steel 1.4404 (AISI 316L),
Seals: PTFE.
Approvals / CertificatesCBC fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
Suitable for the use in potentially explosive atmosphere (ATEX) zone 1.
Approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG).
Type approval DNV GL rules for Liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
TÜV TÜ.AGG 437-11, Lloyd’s Register 0038 RET0271208, TDT-UW-21/16,
EAC TC No. RU Д-SE.MЮ62.B.02151, DNV GL TAP00000RW, DNV GL TAP000012V
Product Sheet / Links
Overview Approvals
Brochure CBC
Homepage CBC
Animation Cryogenic Breakaway Couplings with Breaking Bolts (CBC):
3
Nominal Diameter: DN 80 (3")
Product NameDN 80 (3")
Part Number4
DescriptionUsed for transfers of cryogenic liquefied gases. Typically used for LNG transfers such as loading/unloading of tank trucks, rail tankers and containers as well as for smaller ship bunkering operations from truck to ship or shore to ship.
CommentConnections: 3" in BSP, NPT and Flanged inlet.
4
Body Material: Stainless Steel 1.4408 (AISI 316)
Product NameStainless Steel 1.4408 (AISI 316)
Part Number44
Maximum Working Pressure25 bar
Test Pressure37,5 bar
Minimum Burst Pressure125 bar
5
Connection 1
Threaded Connection
Threaded Connection
Additional Info
Flanged Connection
Flanged Connection
Additional Info
6Connection 1 - Detail
7Connection 2
8Connection 2 - Detail
9Seals
10Order No.
Picture may differ from original product.

Part Number

NC444...

(Elaflex Part Number: CBC 80 SS...)

Product GroupCryogenic Breakaway Couplings
Cryogenic Breakaway Couplings
Example Pictures CBC (Breaking Bolt Type):
Example Pictures CBC-C (Cable Release Type):
Example Picture CBC-PERC:
Short DescriptionCBC
Safety Breakaway Couplings (Emergency Release Couplings) with integrated shut-off valves are used to avoid spillage and damage associated with drive and/or pull away incidents when loading and unloading.
DescriptionThe couplings are designed to be the weakest link of the hose line or loading arm.
Suitable for cryogenic liquefied gases (LNG, nitrogen, oxygen, argon, ethylene etc.) down to -196° C.

Four types can be distinguished:
- CBC Breaking Bolt Type 'Industrial Version'
- CBC Breaking Bolt Type 'Marine Version'
- CBC-C Cable Release Type
- CBC-PERC

1) CBC Breaking Bolt Type 'Industrial Version'

Used to protect hose assemblies and loading arms against excessive loads, e.g. due to drive/pull away incidents or rapid removal of the mobile tanker in emergency situations.
Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of tank trucks, rail tankers and ships.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied, either straight or at an angle.

Installation between a hose assembly or loading arm and a fixed point, e.g. pipe system, rail tanker or road tanker connection.
Release by pull at any angle up to 90 degrees.

CBC 'Industrial Type' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
2) CBC Breaking Bolt Type 'Marine Version'

Used to protect hose assemblies against excessive loads, e.g. due to pull away incidents or rapid removal of the vessel in emergency situations.
Typical applications include container discharge, fuel bunkering and loading operations truck-to-ship, ship-to-ship, terminal-to-ship.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied axially. In comparison to the 'Industrial Version' the coupling offers an increased resistance to torsion and bending loads to prevent unwanted separation.

CBC 'Marine-Version' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
3) CBC-C Cable Release TypeUsed to protect hose assemblies against excessive loads. Special type, recommended in transfer systems with the combination of high operating pressure and weak piping structure.

Compared with standard Safety Break Couplings with breaking bolts CBC-C are designed with a clamp system and an external collar with an attached cable.
The tensile force (pulling force) is not transmitted via the hose or loading arm, but by an integrated cable which is attached to a fixed point (pipework, rail tanker or road tanker).
The length of the cable is adjusted slightly shorter than the maximum length of the loading line.

Release forces are almost independent from the internal pressure (working pressure).
After the admitted travel limit of the cable is reached (angle up to 90 degrees), only a small pull is sufficient to actuate the separation.

If the cable reaches the admitted travel limit and a defined pulling force, the external collar is pulled off and clamps are actuated; the coupling will separate and instantly seal the two open ends. There are no loose components which can get lost. After separation the coupling is checked and can be reconnected without spare parts or special tools.
4) CBC-PERC'Powered Emergency Release Coupling' with remote controlled release, additionally passive release as safety backup.
Used to protect hose assemblies and loading arms against excessive loads, and for manual release in emergency situations.

Two activation methods:
1) Pneumatic, remote-controlled release - MannTek supplies this coupling as a system including control and monitoring system
2) At a defined tensile (pulling) force on the transfer line being applied at an angle of up to 90 degrees.
Suitable for the transfer of cryogenic liquefied gases (LNG, nitrogen, oxygen, argon, ethylene etc.) down to -196° C.

Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of ships.

CBC-PERC is a powered version of the CBC with the advantage that it can be released by external overload or manually operated.
In case of a remote controlled release, a Nitrogen gas cylinder will be opened and gas pressure will release the breaking bolts.

CBC-PERC systems require consultation between a MannTek project manager and the operator during the entire planning phase, including risk analysis (RA, HAZOP, HAZID).
SizesCBC 1" (DN 25) up to 12" (DN 300);
CBC-C 2" (DN 50) up to 6" (DN 150);
CBC-PERC 4" (DN 100) up to 8" (DN 200).
ConnectionsNPT thread, DIN/ANSI/TTMA flange – others on request.
PressureWorking pressure:
DN 25 - DN 100: PN 25,
DN ≥ 150: PN 16.
Temperature-196° C up to +85° C.
MaterialBody: stainless steel 1.4404 (AISI 316L),
Seals: PTFE.
Approvals / CertificatesCBC and CBC-C fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
Suitable for the use in potentially explosive atmosphere (ATEX) zone 1.
Approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG).
Type approval DNV GL rules for Liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
TÜV TÜ.AGG 437-11, Lloyd’s Register 0038 RET0271208, TDT-UW-21/16,
EAC TC No. RU Д-SE.MЮ62.B.02151, DNV GL TAP00000RW, DNV GL TAP000012V

CBC-PERC: Type approval DNV GL rules for liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
DNV GL TAP00000X6, DNV GL TAP000012W, Lloyd’s Register 0038 RET0271208.
Product Sheet / Links
Overview Approvals
Brochure CBC
Homepage CBC
Application Photos CBC / CBC-C / CBC-PERC:
Animation Cryogenic Breakaway Couplings with Breaking Bolts (CBC):
Animation Cryogenic Breakaway Couplings with Cable Release (CBC-C):
Animation Cryogenic Breakaway Couplings / Powered Emergency Release Couplings (CBC-PERC):
Breakaway TypeCBC Breaking Bolt Type - Industrial Version
Product NameCBC Breaking Bolt Type
Part NumberNC
Short DescriptionIndustrial Version
DescriptionUsed to protect hose assemblies and loading arms against excessive loads, e.g. due to drive/pull away incidents or rapid removal of the mobile tanker in emergency situations.
Typical applications include container discharge, fuel bunkering truck-to-ship, ship-to-ship, terminal-to-ship, loading/unloading of tank trucks, rail tankers and ships.

Designed with breaking bolts; activation at a defined tensile (pulling) force on the transfer line being applied, either straight or at an angle.

Installation between a hose assembly or loading arm and a fixed point, e.g. pipe system, rail tanker or road tanker connection.
Release by pull at any angle up to 90 degrees.

CBC 'Industrial Type' have three external breaking bolts. Breaking forces (release forces) are calculated based on the working pressure of the system in question.
Standard breaking forces for SBC are calculated to protect a mating hose with a burst pressure 4 times WP.

To protect hoses with other burst pressure specification or adjacent equipment which may be weaker than the hose please contact your sales representative who will provide a design guideline or can forward your special request to the MannTek technical department.

If the transfer line is subjected to inadvertent and strong tensile loads, e.g. due to a premature movement or the drifting of ships / barges, the coupling will separate and instantly seal the two open ends. It can be reassembled on site with a set of spare parts.
Breaking Bolt Forces

Example chart for possible breaking forces (release forces),
for working pressure = max. admissible working pressure.

Sizes1" (DN 25) up to 8" (DN 200).
ConnectionsNPT thread, DIN/ANSI/TTMA flange – others on request.
PressureWorking pressure:
DN 25 - DN 100: PN 25,
DN ≥ 150: PN 16.
Temperature-196° C up to +85° C.
MaterialBody: stainless steel 1.4404 (AISI 316L),
Seals: PTFE.
Approvals / CertificatesCBC fulfill the requirements of European Pressure Equipment Directive category 2 (for higher demand on request).
Suitable for the use in potentially explosive atmosphere (ATEX) zone 1.
Approved for the transport of dangerous goods on road (ADR), by rail (RID) and by ship (IMDG).
Type approval DNV GL rules for Liquefied gas carriers, type examination DNV GL for LNG transfer systems (ISO16904, EN1474-3).
TÜV TÜ.AGG 437-11, Lloyd’s Register 0038 RET0271208, TDT-UW-21/16,
EAC TC No. RU Д-SE.MЮ62.B.02151, DNV GL TAP00000RW, DNV GL TAP000012V
Product Sheet / Links
Overview Approvals
Brochure CBC
Homepage CBC
Animation Cryogenic Breakaway Couplings with Breaking Bolts (CBC):
Nominal DiameterDN 80 (3")
Product NameDN 80 (3")
Part Number4
DescriptionUsed for transfers of cryogenic liquefied gases. Typically used for LNG transfers such as loading/unloading of tank trucks, rail tankers and containers as well as for smaller ship bunkering operations from truck to ship or shore to ship.
CommentConnections: 3" in BSP, NPT and Flanged inlet.
Body MaterialStainless Steel 1.4408 (AISI 316)
Product NameStainless Steel 1.4408 (AISI 316)
Part Number44
Maximum Working Pressure25 bar
Test Pressure37,5 bar
Minimum Burst Pressure125 bar
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