Description
Sanhua SYJ Series: Features and Details
1. Core Function and Construction
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Function: Provides a visual check of the refrigerant’s state (liquid vs. vapor/bubbles) and indicates moisture levels through a color-changing element.
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Moisture Indicator: Features a high-precision color-changing paper at the center of the glass.
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Green: System is Dry (safe).
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Yellow: System is Wet (requires immediate service/drier replacement).
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Visibility: Designed with a wide-angle clear sight glass to ensure excellent readability from various positions.
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Body Material: Robust, corrosion-resistant brass construction.
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Sealing: Utilizes low-creep PTFE gaskets to ensure long-term, leak-free performance.
2. Technical Specifications
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Refrigerant Compatibility: Applicable for almost all common refrigerants:
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HFCs/HCFCs: R22, R134a, R404A, R407C, R410A, R507.
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HFOs & Low GWP: R1234ze, R1234yf, R448A, R449A, R452A, R513A.
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Flammables (Solder versions only): R290 (Propane) and R32.
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Max. Operating Pressure (PS): Typically rated up to 4.6 MPa (46 bar / 667psig).
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Temperature Range (TS): Standard range is -50C to +80C (-58F to +176F).
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Installation: Can be installed in any position, but vertical or horizontal (upward-facing) is recommended for the clearest bubble detection.
3. Model Variations
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SYJ-H Series: ODF Solder (Sweat) connections (best for leak prevention and flammable refrigerants).
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SYJ-L Series: SAE Flare connections (Male x Male or Female x Male) for easy mechanical assembly.
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Standard Sizes: Available in connection sizes from 1/4″ to 1-1/8″.
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