York YS Series Chiller Compressor Valve Plate Assembly

The York YS Valve Plate Assembly is a premium replacement component for York YS series centrifugal chiller compressors. Fabricated from 316L stainless steel with enhanced molybdenum content (2-3%), this valve plate provides superior pitting and crevice corrosion resistance essential for large-scale chiller applications.

Designed to meet the exacting standards of centrifugal compressor operation, each assembly features precision-machined port geometry and mirror-finish sealing surfaces. Compatible with York YS-BA, YS-BB, YS-CA, and YS-CB compressor models commonly found in commercial building chiller plants.

Key Features

• 316L Stainless Steel: Enhanced molybdenum content for superior chloride corrosion resistance
• Centrifugal Compressor Grade: Designed for the precision requirements of chiller compressors
• Mirror Finish Surface: Ultra-smooth sealing surface minimizes gas recirculation losses
• Large Frame Design: Engineered for the high-capacity demands of YS chiller series
• Precision Port Geometry: CFD-optimized flow paths for maximum volumetric efficiency

Technical Specifications

Applications

• Commercial building chiller plants
• Hospital and healthcare facility HVAC
• University campus cooling systems
• Shopping mall central air conditioning
• Industrial process cooling towers

FAQ

Q: Why 316L instead of 304 stainless steel?
A: 316L contains 2-3% molybdenum which provides significantly better resistance to chloride-induced pitting corrosion, critical for chiller applications where water quality varies and chemical treatment is used.

Q: Is this suitable for seawater-cooled chiller applications?
A: While 316L offers good corrosion resistance, for direct seawater exposure we recommend consulting our engineering team for titanium or super duplex options.

Q: What is your quality inspection process?
A: Each valve plate undergoes dimensional inspection, surface roughness testing, dye penetrant crack detection, and material certification verification before shipment.