The Wilson & Cousins (QST) siamese is a safety coupling designed for firefighters, also known as a fire department connection (FDC). It allows fire departments to connect their equipment to a building’s fire protection system to supply water during an emergency response.
The term QST stands for “Québec Standard Thread.” It indicates that the fitting’s thread is designed to comply with the standards used for fire protection equipment in Québec.
Available from SCS Canada, the Wilson & Cousins (QST) dual-outlet siamese can be ordered directly from the Shopping Cart on the SCS Canada website.
In an emergency, compatibility between fire department equipment and the siameses installed on a building is essential.
The QST (Québec Standard Thread) standard identifies a coupler whose threading meets the requirements and practices used for fire department connections in Quebec.
Choosing the right coupler therefore helps ensure an effective connection between firefighters’ equipment and the building’s fire protection system.
Depending on the system configuration, a QST siamese can be used with, among other things:
The appropriate model and configuration must be selected based on project requirements, the fire protection system, and applicable standards.
Fire department supply connections play an important role in a building’s overall fire protection strategy.
When a fire occurs, fire departments must be able to respond quickly and use the equipment provided to support the building’s fire protection systems. An appropriate and easily accessible connection helps facilitate this response.
As with all components of a fire protection system, it is important to select a product suited to the installation and to comply with applicable requirements for design, installation, and maintenance.
The Wilson & Cousins (QST) siamese is available from SCS Canada.
You can view the product and check its availability directly in the SCS Canada Shopping Cart, which offers a wide selection of parts, fittings, and equipment for professionals in the fire protection industry.
SCS Canada offers a selection of Wilson & Cousins siameses and components in various configurations, sizes, and finishes to meet the needs of fire protection installations.
Among the products available in the SCS Canada Shopping Cart are:
The QST brass surface-mount union body, model IE-33-S-QST, is designed for surface installation and features a QST thread.
The QST brass + red surface-mounted union assembly, model IE33B QST, combines the union body with red covers and a QST connection.
SCS Canada also offersthe 2 1/2-inch brass surface-mount QST Siamese set, model IE-28S-B 2.5, for applications requiring this configuration.
For installations where a flush-mount solution is preferred, the SCS Canada catalog includes the QST chrome straight flush-mount union set, model IE-28-4G PAC C.P.
The catalog also includes various twin-outlet configurations, including:
This variety allows professionals to select a configuration tailored to the specific characteristics of their installation.
Do you have questions about the Wilson and Cousins (QST) siamese, the Quebec Standard Thread, its use, or its compatibility with your installation?
Our technical representatives are ready to assist you. They can answer your questions and guide you toward the products that meet your project’s requirements.
Whether you’re a contractor, installer, distributor, or professional in the fire protection industry, our team is here to support you.
The Wilson & Cousins (QST) siamese is one of the many components and pieces of equipment available from SCS Canada to meet the needs of fire protection professionals.
With our online shopping cart, you can find the parts you need and rely on the expertise of our technical team whenever you need assistance.
SCS Canada: Fire protection products at your fingertips.