York S1-3591-00 Valve

The York S1-3591-00 Valve is a normally closed (N/C) solenoid valve body engineered for high-performance fluid control in industrial and commercial HVACR systems. Specifically designed with 7/8" sweat (ODF) connections, this valve ensures leak-resistant, soldered joints within refrigerant lines, water circuits, or coolant systems. As a critical component for York chiller maintenance and fluid handling, the S1-3591-00 features a manual lift stem, providing technicians with vital override capabilities for system troubleshooting, manual bypassing, or charging during service procedures.

Built for the rigors of heavy-duty refrigeration, this 7/8" sweat solenoid valve eliminates the common failure points of universal alternatives by maintaining OEM specifications for pressure ratings and flow coefficients. Whether you are replacing a S1-3591-00 solenoid valve in a condensing unit or managing liquid line flow in a large-scale refrigeration rack, the York genuine replacement part ensures the tight shut-off and responsiveness required to maintain system efficiency and protect downstream components from slugging or improper flow.

Key Benefits:

• Manual Override Capability: Integrated manual lift stem allows for manual opening during maintenance or power loss without needing to energize the coil.
• High-Integrity Connections: 7/8" ODF sweat terminals facilitate a permanent, leak-proof seal in high-pressure refrigeration piping.
• Normally Closed Logic: Provides failsafe operation by automatically halting flow when de-energized, preventing unintended refrigerant migration.
• Optimized Flow Control: Engineered to reduce pressure drop across the valve, supporting the overall HVAC system efficiency.
• OEM Reliability: Direct fit for York and compatible Johnson Controls equipment, ensuring correct internal alignment and stroke length.

Common Questions:

Does this valve include the solenoid coil?
The York S1-3591-00 is the solenoid valve body and manual lift stem assembly. The electromagnetic coil must be sourced separately based on your system’s voltage requirements (e.g., 24V, 120V, or 240V).

Can the manual lift stem be used for long-term bypass?
The manual lift stem is primarily designed for temporary service, testing, and troubleshooting. For continuous flow, the valve should be properly energized via a compatible solenoid coil to ensure optimal seal life.

Is this valve compatible with modern refrigerants?
Yes, this HVAC solenoid valve is constructed with materials compatible with standard HCFC and HFC refrigerants typically found in York commercial chillers and condensing units.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.