Resideo by Honeywell V2043HSL10 1/8" One-Pipe Steam Thermostatic Radiator Valve with Air Vent

The Resideo by Honeywell V2043HSL10 is a one-pipe steam thermostatic radiator valve that allows automatic temperature control in one-pipe steam or hot water systems for free-standing radiators, convectors, and other heating units with standard capacity requirements. This valve continually monitors and adjusts room temperature for consistent comfort and relief from under-heating and overheating, providing both comfort and energy savings.

Key Features:

• Angle body pattern with 1/8" NPT connection and standard capacity
• Adjustable balancing cartridge design made from resilient material (EPDM) ensures tight shut-off on steam and hot water systems, with a nickel-plated brass cast body
• Replaceable cartridge for easy service with service tool
• Pressure ratings: Valve 15 psi maximum, Vent 6 psi maximum
• Includes valve body and steam/air vent (SA123A)
• Compatible with T100 set point and capillary actuators, no electrical connection required for non-electric actuators
• Replaces obsolete part number Y100P1001

Important Note: This product provides automatic temperature control when paired with an MV100, T100, or T200 controller, which is sold separately. The valve body features a 1/2" body with 1/8" male adapters for NPT inlet and female NPT outlet connections, making it ideal for one-pipe steam applications in residential and commercial hydronic heating systems.