Safety Break-away Couplings

SBCouplings

Safety Break-away Couplings

Breaking Bolt Series

Safety Break-away couplings are used to prevent pull away accidents, protect terminal and loading/unloading equipment and eliminated unwanted product release. 

The break-away couplings has a diverted breaking point which will break at a determined break-load where upon the internal valves will automatically close on both sides. 

This will in a longer time frame minimize down time, save money, equipment and the environment.

How it works - before and after emergency disconnect

SBCoupling before emergency disconnect

The safety break-away valve consists of two halves, each with a valve that has a o-ring seal. 

SBCoupling after emergency disconnect

When the SBCouplings separate, it allows the valves to close. The two valves closes rapidly, minimizing exposure to personnel and the environment. 

The SBCouplings, Safety breakaway couplings has three external break bolts. In the case of axial tension all of the bolts take up the force
corresponding to the break force on the hose with a safety margin.

Non-axial forces concentrate the tension forces more strongly on one bolt, so that the safety break-away coupling reacts in a natural way
to the reduction of the hose break forces. 

Breaking Bolt Series

Features and Applications

Features

• Passive security against situations
 where a hose or loading arm could be
 subjected to inadvertent excessive loads.
• Design features are a simple mechanism
 and no loose components which could be
 lost after release.
• Operates independently of shut off safety
 system and does not require an external
 power source.
• Easy to reset on site with one person
• High flowrate / low pressure drop
• Very low loss, positive shut-off of both
 coupling halves results in minimum
 product loss.
• Lightweight and robust design.
• Available with ANSI/DIN flanges or
 threaded (BSP or NPT

Applications

Liquified gases
LPG, Butane, Propane and Blends.
Co2, DME, LNG

Chemicals and Hydrocarbons
Aromatics, Ethylenes and Propylenes,
VCM, Alcohols and Acids, Diesel, Jet A1.
Refrigerants Forane.

Oil and Petrochemical
Bulk Loading/Unloading, Road Tankers
Rail Tankers, Process Product Transfer
Tank Cleaning

Marine and Offshore
Ship to Rig Fluid Transfer
Ship to Shore Fluid Transfer
Ship to Ship Fluid Transfer
Bunkering, Marine Refuelling

Speciality
Hydraulic Oils, Inks, Paints, Solvents,
Locomotive Fuelling, Helicopter Fuelling,
Food processing industry
Plant engineering and construction
Power plant construction, Food processing industry

The Safety Break-away couplings are available as Industrial and Marine type.

Industrial Break-away

Typically installed into loading arm and hose assemblies, where at least one side of the coupling is attached to a rig and fixed point.

Release with a tensile force being applied at an angle to the plane of the coupling housing, up to 90 degrees.

Marine Break-away

Marine Safety Break-aways are designed to only release by inline pull and used between two strings of hose.

Release by inline pull only.

Industrial Breaking Bolt Series

Industrial Break-away coupling

Industrial Break-away coupling is utilized all industrial product transfer installations.

The industrial SBCouplings are specifically designed to be able to activate with a tensile force being applied at an angle to the plane of the coupling housing, up to 90 degrees.

Advantages

Industrial Breaking Bolt Series

Examples of Connection combinations

BSP Female thread / BSP Female thread

Male thread / Male thread

Victaulic / Victaulic

Flange / Flange

NPT Female thread / NPT Female thread

NPT Female thread / NPT Male thread

also available with BSP

NPT Female thread / Victaulic

Flange / Thread

(BSP/NPT -Female/Male and Victaulic)

Other combinations of connections on request.

Industrial Breaking Bolt Series

Technical data - Sizes, connections, materials and seals

Coupling sizes and connections

1) Mann Tek Standard. Other on request.

2) Threads: Female and Male (F/F - F/M - M/M) BSP, Female and Male (F/F - F/M - M/M) NPT
 Flanges: ANSI 150 psi / ANSI 300 psi, DN 25-150 PN 10/16 and PN 25/40, TW1/50, TW3/80, TW7/150, T.T.M.A .
 Others: Victaulic

Materials

Seals

Working pressure: 16 bar / 25 bar 150psi / 300 psi                                   40 bar / 600 psi on request

3) For temperature stability of the seal material used must be considered separately for each individual case
 4) Kalrez, Viton =  Registered Trademarks of DuPont; Chemraz = Registered Trademark of Green Tweed

Marine Breaking Bolt Series

Marine version of SBCouplings are designed specifically to be installed within a hose string, where the coupling would have a length of hose attached to both sides.

This coupling incorporates the same internal mechanism as our Industrial couplings, but has additional external features that provide increased resistance to torsional and bending moment forces which may be applied to the coupling, preventing premature activation in the unpredictable marine environment. 

Typical applications include ship to offshore platform, and ship to ship product transfer opertations.

Advantages

Marine Breaking Bolt Series

Examples of Connection combinations

Other combinations of connections on request

BSP Female thread / BSP Female thread

Male thread / Male thread

Victaulic / Victaulic

Flange / Flange

NPT Female thread / NPT Female thread

NPT Female thread / NPT Male thread

also available with BSP

NPT Female thread / Victaulic

Flange / Thread

(BSP/NPT -Female/Male and Victaulic)

Marine Breaking Bolt Series

Technical data - Sizes, connections, materials and seals

Coupling sizes and connections

1) Mann Tek Standard. Other on request.

2) Threads: Female and Male (F/F - F/M - M/M) BSP, Female and Male (F/F - F/M - M/M) NPT
 Flanges: ANSI 150 psi / ANSI 300 psi, DN 25-150 PN 10/16 and PN 25/40, TW1/50, TW3/80, TW7/150, T.T.M.A .
 Others: Victaulic  

Materials

Seals

Working pressure: 16 bar / 25 bar 150psi / 300 psi                                                 40 bar / 600 psi on request.

3) For temperature stability of the seal material used must be considered separately for each individual case
 4) Kalrez, Viton = Registered Trademarks of DuPont; Chemraz = Registered Trademark of Green Tweed

Pressure Drop Curve

Flow Diagram (Pressure Drop) for Industrial and Marine Break-away couplings

Options - Break-away couplings

Non - Closure Break-away couplings

Industrial or Marine Break Away

- Non Closure 

• Non-closure versions are available in both
  the Industrial and Marine versions of our
  couplings, the Non-Closure design acts purely
  as an identified safe parting point within the
  transfer system, protecting equipment and
  personnel.
• With no internal mechanism these couplings
  are utilised when the medium is non-hazardous
  and spillage is acceptable.

Option - Break-away /Swivel integrated

Where there is a risk of excessive force on the hose due to unexpected movement between the loading and unloading station, combining the Dry Disconnect Coupling or Swivel with a Safety Break Away coupling.

Hose Swivel with Breakaway integrated

Dry Gas coupling Hose unit with Break-away integrated

Dry disconnect coupling Hose unit with Break-away integrated 

Cable release series

Safety Break-away coupling - Cable release series

General info

For safe transfer of all your hazardous and non-hazardous products.

The Break-away Cable release series, is designed specifically to minimize spillage and damage associated with drive away and pull away incidents.

The Coupling automatically senses an excessive load, closes its valves and then permits disconnection.

Function

The safety break-away valve consists of two halves, each with a valve that has a flat type-sealing surface similar to a dry disconnect coupling. The valve remains constantly open under normal use.

The two halves of the break-away coupling only close when there is excessive force, such as in a Road Tanker, or Rail Car drive away situation.

The release is executed by pulling out the locking bolts with the help of the cable. The locking bolts hold the two pressure clamps in position which press both casing halves of the SBCoupling together. A guiding pin set in between serves the alignment of the locking bolts.

When the SBCouplings separate, this allows the poppets to close. Product loss is minimized because of the two poppets close rapidly, minimizing exposure to personnel and the environment. 

How it works

SBCouplings before emergency disconnect.

SBCouplings after emergency disconnect.

Safety Technology for Rough Evironments: Cable Release Series.

• Passive security against situations where
 a hose or loading arm could be subjected
 to inadvertent excessive loads.
• Minimal Tension forces on the cable are
 required to release the SBCouplings-
 system.
• Design features are a simple mechanism
 and no loose components which could be
 lost after release.
• Operates independently of shut off safety
 system and does not require an external
 pow