Engineered Dry Break Couplings — ARTA ASK-C Series

Specifications

Parameter	Value
Sizes	DN15 (½”) to DN200 (8″)
Pressure rating	PN16 (232psi) to PN40 (580psi)
Temperature range	-55°C (-67°F) to +200°C (+392°F)
Body material	Stainless steel 1.4301 / 1.4404 / 1.4571, Hastelloy®
Seals	PTFE, EPDM, Viton® — other seals on request
Connections	Thread: NPT, BSP, ISO — Flanges: ANSI, ISO — others on request
Certifications	2014/68/EU (PED), 2014/34/EU (ATEX), EN14432, 21 CFR Part 11, USP Code 6
Serviceability	Fully serviceable — spare kits available

Application

The ARTA ASK-C dry break coupling is designed for the connection and disconnection of hose lines and pipelines under operating pressure, without product loss. It is used across a wide range of industries where spill-free, safe fluid transfer is critical:

• Petroleum and fuel transfer — tanker trucks, terminals, depots, service stations
• Chemical transfer — including acids, caustics, solvents and corrosive media
• Gas transfer — including LNG, LPG and compressed gases
• Food and pharmaceutical — ASK-FD variant for food-grade applications
• Mining and bulk liquid — bulk chemical and process fluid transfer

The ASK-C can be uncoupled while a line is still filled, significantly speeding up loading and unloading cycles. Treloar conducted the first Australian trial of ARTA dry break couplings — read the Australian ARTA dry break trial case study.

How the ASK dry break coupling works

The ASK-C uses a single continuous rotating motion to connect — place the female coupler onto the male adaptor and rotate. The coupling seals first, then the internal valves open, keeping media safely inside the line throughout the connection process. No spillage occurs at any point.

Disconnection reverses the process — valves in both halves close automatically before the coupling separates, preventing product loss. The male adaptor remains on the system with its valve closed until the next connection.

Key features

• Spill-free connection and disconnection — valves close automatically before separation; neither operator nor environment is exposed to the transported product
• Under-pressure coupling — connect and disconnect while the line is under operating pressure or still filled, reducing downtime during loading cycles
• Maximum flow — flow-optimised internal design using finite element method (FEM), validated by flow testing; minimises pressure loss
• Integrated swivel joint — reduces mechanical stress and prevents torsion in the pipe; low maintenance requirement
• ARTA safety pin — prevents unintentional release of the coupling during operation
• Mechanical lockout option — prevents accidental coupling to an incompatible connector, eliminating product mix-up risk
• 50+ year proven design — continuously developed with current technology; globally certified
• Fully serviceable — spare kits available; not a throw-away product

Dry break coupling options from Treloar

Treloar supplies three dry break coupling ranges to suit different applications and budgets:

Product	Best for	Key feature	Serviceability
ARTA ASK-C (this page)	Petroleum, chemical, gas, food/pharma — premium engineered applications	50+ year design, ATEX certified, widest size range (DN15–DN200)	Fully serviceable — kits available
SAS Dry Breaks	Tank truck, transport and general industrial	NATO certified, 1″–4″, quick connect/disconnect, minimal fluid loss	Serviceable
Drylok Dry Break	Hazardous corrosive and volatile liquids — acids, solvents, petrochemicals	Driest disconnect in industry — less than 1cc fluid loss from 3″ unit	Serviceable

Not sure which dry break coupling is right for your application? Contact the Treloar team for a recommendation.

Frequently asked questions

What is a dry break coupling?

A dry break coupling (also called a dry disconnect coupling or dry break fitting) allows pipelines and hose lines to be connected and disconnected under operating pressure without product spillage. Both halves of the coupling contain automatic shut-off valves that close before separation, preventing fluid loss and protecting operators and the environment from exposure to the transferred media.

What is the difference between a dry break coupling and a standard cam and groove coupling?

A standard cam and groove (camlock) coupling does not have automatic shut-off valves — disconnecting under pressure causes product spillage. A dry break coupling seals automatically on disconnection, making it suitable for hazardous, volatile, or environmentally sensitive fluids where any spillage is unacceptable.

What fluids can the ARTA ASK dry break coupling handle?

The ASK range handles petroleum products, liquid and gaseous chemicals (including acids, caustics and solvents), LNG, LPG, compressed gases, and food/pharmaceutical-grade liquids (ASK-FD variant). Seal materials (PTFE, EPDM, Viton®) and body materials (stainless steel, Hastelloy®) can be specified to suit the media.

Are ARTA dry break couplings ATEX certified?

Yes. The ARTA ASK-C is certified to 2014/34/EU (ATEX) for use in potentially explosive atmospheres, as well as EN14432, 2014/68/EU (Pressure Equipment Directive), 21 CFR Part 11 and USP Code 6.

What sizes are available for the ASK dry break coupling?

The ARTA ASK series is available in sizes DN15 (½”) through DN200 (8″). Connections include NPT, BSP and ISO threads, and ANSI and ISO flanges. Other connections are available on request.

Are spare parts available for ARTA ASK dry break couplings?

Yes. The ARTA ASK-C is fully serviceable — spare kits are available. Contact Treloar for details on the kit applicable to your order code.

What is the difference between a dry break valve and a dry break coupling?

The terms are often used interchangeably. Technically, a dry break coupling refers to the complete connection system (both male and female halves), while a dry break valve refers to the shut-off valve mechanism within each half that closes automatically on disconnection. In practice, “dry break coupling,” “dry break valve,” “dry break fitting” and “dry disconnect coupling” all describe the same product category.

Request a quote

Contact Treloar for pricing, lead times and spare kit availability on the ARTA ASK dry break coupling range. Our team can assist with product selection and sizing for your application.