TLX Fire & Security has launched a supervised solenoid valve supporting high pressure fire suppression systems while simplifying compliance and installation.
TLX Fire & Security has expanded its fire suppression portfolio with the launch of a Supervised Direct-Acting Solenoid Valve, developed to meet the demands of modern, high pressure suppression systems.
Recognised as a UL 429 and UL 429A component, the valve is rated for operating pressures of up to 150 bar and is intended for use across clean agent, inert gas, CO2 and hybrid fire suppression systems that rely on valve integrated actuation.
Integrated supervision and regulatory compliance
The new solenoid valve has been engineered with system supervision at its core. It incorporates the same integrated supervisory technology found in TLX’s established range of linear electric actuators for fire suppression. As a result, it complies with the supervision requirements of NFPA 2001 Section 4.3.4.1 and EN 15004-1, providing continuous monitoring of the actuation device without the need for external components.
A key differentiator is the patented integration of the supervisory function directly into the removable coil assembly. By eliminating the requirement for an additional supervisory switch or module, TLX has removed extra wiring and connection points that can complicate installation and introduce potential failure modes. Activation and supervision are both handled through factory installed wiring using a standard six wire configuration, simplifying system design and supporting consistent installation practices across different suppression platforms.
The valve assembly consists of two main elements: a removable coil assembly and a threaded valve body. The coil housing is manufactured from electroless nickel plated carbon steel, offering corrosion resistance and durability in demanding environments. The valve body itself can be supplied in either brass or stainless steel, allowing system designers to select materials that best suit the agent type, pressure rating and environmental conditions of the application.
Configurable design for multiple suppression applications
Flexibility is further enhanced through two distinct configuration options. For valve integrated actuation systems, the solenoid valve includes a normally closed release valve and is available with either 1/8 inch or 1/4 inch NPT threads. Where selector valve functionality is required, the standard valve body can be replaced with a threaded collar that is fully customisable to interface correctly with the system’s selector valve design. This adaptability supports a wide range of system architectures without the need for bespoke actuation solutions.
Installation focused mechanical features
Installation and maintenance considerations have clearly informed the mechanical design. The coil assembly is able to rotate freely on the valve body, allowing independent orientation of the wiring and discharge tubing. This reduces installation constraints and helps installers achieve clean, compliant routing in confined or complex system layouts. In addition, the coil assembly incorporates a captured fastener. This prevents the fastener from being misplaced during routine testing or maintenance and ensures correct seating of the coil on the valve body, providing clear confirmation that the assembly has been properly installed.
The Supervised Direct-Acting Solenoid Valve represents the latest addition to TLX Fire & Security’s fire suppression product line. Beyond the component itself, TLX positions the valve as part of a wider engineering support offering. System manufacturers can leverage TLX’s technical expertise to support compliance and certification processes, including UL, FM, CE, LPCB and VdS listings. For manufacturers seeking a supervised, high pressure actuation solution that aligns with current regulatory standards while simplifying system design, this new solenoid valve provides a practical and technically robust option.
