Product details
6410/2 Capped Valve | 1/4″ Flare | Castel
The Castel 6410/2 Capped Valve is a compact and precision-built refrigeration service valve designed for secure shut-off and service access in HVAC and refrigeration systems. It features a protective cap that ensures leak-tight sealing while protecting the valve from dust and external contaminants.
This model comes with a 1/4″ SAE flare connection, making it ideal for small systems, tight spaces, and service applications.
As shown in the datasheet, the valve offers stable performance, reliable sealing, and compatibility with commonly used HVAC refrigerants .
Key Benefits
Provides secure shut-off and service access
Protective cap for leak prevention and safety
Flare connection for easy installation
Compact design for small systems
Precise flow control for low-capacity applications
Reliable sealing for long-term use
Compatible with common refrigerants
High pressure rating up to 45 bar
Specifications
Brand: Castel
Model: 6410/2
Product Type: Capped Valve
Connections
Connection Type: SAE Flare
Connection Size: 1/4″
Performance
Flow Coefficient (Kv): 0.4 m³/h
Pressure & Temperature
Maximum Working Pressure (PS): 45 bar
Maximum Working Pressure (MWP): 650 psi
Minimum Temperature: -40°C
Maximum Temperature: +110°C
Compatibility
Refrigerants:
HCFC (R22)
HFC (R134a, R404A, R407C, R410A, R507)
HFO (R1234ze)
HFO + HFC Blends (R448A, R449A, R450A, R452A, R513A, R515A, R515B)
Applications
HVAC systems
Refrigeration systems
Service and maintenance points
Small refrigeration units
System isolation and control
FAQs
What is the function of a capped valve?
It provides shut-off control and service access while preventing leaks with a protective cap.
What is the connection type?
It uses a 1/4″ SAE flare connection.
What is the pressure rating?
It is rated up to 45 bar (650 psi).
Where is this valve typically used?
It is used in HVAC and refrigeration systems for service and isolation purposes.








