Product details
The Castel 6571/25A Ball Valve Access Port is a high-performance refrigeration accessory designed for use in HVAC and industrial cooling systems. It provides reliable shut-off and access functionality, allowing technicians to safely isolate and service refrigeration circuits.
Engineered with robust construction and precise internal design, this valve ensures smooth operation, minimal pressure drop, and long service life. It is compatible with a wide range of refrigerants including HCFC, HFC, and HFO blends, making it suitable for modern refrigeration systems.
Designed for professional applications, this valve delivers dependable performance under high pressure and extreme temperature conditions.
Key Benefits
Reliable shut-off and access control for refrigeration systems
Compatible with multiple refrigerants (HCFC, HFC, HFO blends)
High pressure tolerance up to 45 bar
Durable construction for long service life
Low pressure drop with high flow capacity
Suitable for industrial and commercial HVAC systems
Specifications
Brand: Castel
Model: 6571/25A
Product Type: Ball Valve Access Port
Connections
Connection Type: ODS
Connection Size: 3-1/8″ (80 mm)
Performance
Ball Port Diameter: 60 mm
Flow Coefficient (Kv): 380 m³/h
Pressure & Temperature
Maximum Working Pressure (PS): 45 bar
MWP: 435 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)
(Data verified from datasheet – page 1 )
Applications
Industrial refrigeration systems
Commercial HVAC systems
Cold storage facilities
Chiller systems
Refrigeration pipelines and service access points
FAQs
What is the purpose of this ball valve access port?
It is used to isolate and control refrigerant flow while providing access for maintenance and servicing.
What type of connections does it use?
It uses ODS connections with a size of 3-1/8″ (80 mm).
What refrigerants is it compatible with?
It supports HCFC, HFC, HFO, and HFO/HFC blended refrigerants.
What is the maximum working pressure?
It is rated for up to 45 bar (435 psi).
What temperature range can it handle?
It operates from -40°C to +150°C.







