Description
York S1-3596-00 Normally Closed Zone Valve Body with Manual Lift Stem
The York S1-3596-00 is an OEM replacement zone valve body engineered for reliable fluid control in hydronic heating and cooling systems. Featuring a 7/8-inch sweat (solder) connection and a normally closed (N/C) configuration, this valve body ensures that flow is shut off by default — opening only when energized — providing safe, energy-efficient zone control. The integrated manual lift stem allows technicians to manually override the valve for system testing, commissioning, or emergency operation without requiring electrical actuation.
Key Features
- OEM York replacement part — SKU S1-3596-00
- 7/8-inch sweat (solder) connection for secure, leak-free installation
- Normally closed (N/C) valve body — defaults to closed position when de-energized
- Manual lift stem for easy field override and system commissioning
- Designed for use in hydronic heating and cooling zone control applications
- Direct OEM replacement ensures proper fit and performance
Application
This valve body is ideal for residential and light commercial hydronic systems where precise zone control is required. The normally closed design conserves energy by preventing unwanted flow when the zone is not calling for heating or cooling. Compatible with standard York zone valve actuators.
Installation Notes
- Connection type: 7/8″ sweat (solder)
- Valve action: Normally Closed (N/C)
- Manual lift stem included for override capability
- Consult York system documentation to confirm compatibility before installation
