This valve set is designed for steam iron and boiler systems, providing reliable control, simple operation, and durable performance. Each valve is built to withstand steam service, resist corrosion, and fit standard piping connections. The collection includes the Boiler Steam Iron Drain Valve, the Steam Iron Onoff Valve, the Threeway Drain Valve, and the Steam Iron Drawoff Valve. Boiler Steam Iron Drain Valve (Steam iron shutoff valve) Secure shutoff for boiler steam lines; robust construction provides leak operation. Designed for steam iron drainage applications to support safe maintenance and drainage. Compatible with standard fittings and typical boiler/iron piping; built for long service life. Function: isolate and drain boiler steam lines as needed. Steam Iron Onoff Valve Durable and sturdy; resistant to deformation and breakage. Provides precise on/off control of steam supply; suitable for repeated use. Designed for extended service in steam iron systems; compatible with common steam lines. Function: control continuous or intermittent steam delivery to the iron system. Threeway Drain Valve Simple structural design; easy operation with minimal training. Timesaving and laborsaving due to straightforward control. Threeway configuration allows routing of drainage or vent paths in complex piping. Function: manage multiple drainage or vent routes from a single valve body. Steam Iron Drawoff Valve (Airline valve) compressive strength and corrosion resistance for steam environments. performance and reliable operation under cycling and temperature. Used to draw off or vent steam in iron and boiler lines; compatible with standard connections. Function: provide controlled drawoff or venting in steam circuits. 23 practical use scenarios Home ironing with a steam generator: use the Boiler Steam Iron Drain Valve to isolate the boiler, the Steam Iron Onoff Valve to control steam delivery, and the Steam Iron Drawoff Valve to vent or draw off steam as needed; the Threeway Drain Valve can route drainage for routine maintenance. Commercial garment pressing facility: employ the Threeway Drain Valve to manage multiple steam lines and drainage paths; use the Onoff Valve for quick isolation of individual presses, and the Drawoff Valve for monitoring and venting in maintenance cycles. Boiler maintenance and testing: utilize the Shutoff Valve to isolate sections, drain operations with the Drain Valve, and the Drawoff Valve to test pressure or vent lines without affecting the entire system. Specifications and attributes Function: shutoff, onoff control, drainage and drawoff/venting for steam iron and boiler systems. Compatibility: designed to fit standard steam line configurations and common piping connections. Performance: built for temperature steam service with emphasis on durability and reliability. Materials: engineered for resistance to deformation and corrosion in typical steam environments. Size guidance: intended for standard valve fittings used in steam iron and boiler circuits (confirm exact dimensions for your installation).