Product details
3144W/11 Check Valve | 1-3/8″ ODS | Castel
The Castel 3144W/11 Check Valve is a high-performance refrigeration valve designed to ensure one-directional refrigerant flow in HVAC and industrial cooling systems. It prevents reverse flow, protecting compressors and critical components while maintaining system efficiency and reliability.
Designed for medium-capacity systems, this valve offers a balanced combination of flow performance and durability, making it suitable for demanding refrigeration applications.
As shown in the datasheet, the valve provides efficient flow with low opening pressure, ensuring smooth operation and minimal pressure drop .
Key Benefits
Prevents reverse refrigerant flow
Protects compressors and system components
Optimized flow capacity for medium systems
Low opening pressure for efficient operation
Suitable for HVAC and industrial applications
Durable construction for long service life
Specifications
Brand: Castel
Model: 3144W/11
Product Type: Check Valve
Connections
Connection Type: ODS
Connection Size: 1-3/8″ (35 mm)
Performance
Flow Coefficient (Kv): 15.6 m³/h
Minimum Opening Differential Pressure: 0.04 bar
Pressure & Temperature
Maximum Working Pressure (PS): 45 bar
Maximum Working Pressure (MWP): 650 psi
Minimum Temperature: -40°C
Maximum Temperature: +150°C
Compatibility
Refrigerants:
HCFC (R22)
HFC (R134a, R404A, R407C, R410A, R507)
HFO (R1234ze)
HFO + HFC Blends (R448A, R449A, R450A, R452A, R513A, R515A, R515B)
Applications
Commercial refrigeration systems
HVAC systems
Cold storage systems
Chiller systems
Refrigerant flow protection systems
FAQs
What is the function of this check valve?
It allows refrigerant flow in one direction and prevents reverse flow.
What is the connection size?
It uses a 1-3/8″ (35 mm) ODS connection.
What is the opening pressure?
It opens at a minimum differential pressure of 0.04 bar.
What is the pressure rating?
It is rated up to 45 bar (650 psi).
Where is this valve typically used?
It is used in medium-capacity HVAC and refrigeration systems.







