Description
✨ Sanhua CCV Series: Features and Details
1. Core Function and Construction
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Function: Controls the unidirectional flow of refrigerant, automatically preventing backflow when the pressure differential is unfavorable.
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Design Type: Spring-loaded Check Valve (often using a piston or disc mechanism).
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Leakage: Engineered for reliable sealing and minimal internal leakage, maintaining system integrity.
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Flow Type: Designed for low resistance to flow in the forward direction.
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Body Shapes: Typically a robust Straight-Way design for in-line installation.
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Installation: Flow direction is clearly marked by an arrow on the valve body.
2. Technical Specifications
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Refrigerant Compatibility: Applicable for a very wide range of refrigerants, including:
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Common HFCs/HFOs (R134a, R404A, R407C, R410A, R452A, etc.).
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Low-GWP and Flammable Refrigerants (R290, R32).
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Crucial Feature: High-pressure models are specifically designed and rated for R744 (CO2) applications (often called the CCV B/G series).
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Max. Operating Pressure (PS) – Key Feature:
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Standard Models: High rating, typically around 4.5MPa to 4.9MPa (45 bar to 49 bar).
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R744 Models (CO2): Extremely high pressure rating, up to 14 MPa (140bar) or even 15 MPa (150 bar) for transcritical CO2 systems.
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Medium Temperature (TS): Wide range, typically -50^C to +150C.
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Connections: Primarily available with ODF (Solder) connections, often in larger commercial sizes (e.g., 1/2” up to 2-1/8” and larger).
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Opening Pressure Difference (Min. OPD): Designed for low OPD to minimize pressure loss.
3. Model Variations
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CCV: Standard check valve series (suitable for HFC/HFO up to ~45 bar).
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CCV-G/B: Models optimized for R290/R32 flammable refrigerants.
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CCV-R744/CCV B/G: Dedicated CO2 check valves with extremely high-pressure shells (140 bar to 150 bar rating) and specialized internal parts.
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