Product details
1028/3S Solenoid Valve | 3/8″ ODS | Without Coil | Castel
The Castel 1028/3S Solenoid Valve is a compact and high-precision refrigeration valve designed for HVAC and cooling systems. It operates using a direct acting mechanism, making it ideal for low-capacity applications and systems where differential pressure is low or zero.
This model is supplied without a coil (S version), allowing flexibility to select the appropriate coil based on system voltage and application requirements. Its compact design enables easy installation in tight spaces while maintaining accurate flow control.
Compatible with a wide range of refrigerants, the 1028/3S valve ensures reliable performance, durability, and long service life in commercial and industrial environments.
Key Benefits
Direct acting operation for precise control without pressure difference
Supplied without coil for flexible configuration
Compatible with multiple coil types and voltages
Compact design for tight installation spaces
Ideal for low-capacity and low-pressure applications
High pressure rating up to 45 bar
Specifications
Brand: Castel
Model: 1028/3S
Product Type: Solenoid Valve
Connections
Connection Type: ODS
Connection Size: 3/8″
Performance
Operating Principle: Direct acting
Flow Coefficient (Kv): 0.23 m³/h
Electrical
Coil: Not included
Compatible Coil Types: HF2, HF3, HF4, HM2, HM3, HM4, CM2
Pressure & Temperature
Maximum Working Pressure (PS): 45 bar
Minimum Temperature: -35°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
Small refrigeration systems
HVAC systems
Capillary and low-flow systems
Precision cooling applications
Refrigeration liquid line control
FAQs
Does this valve include a coil?
No, this is the S version supplied without a coil.
What type of operation does this valve use?
It uses a direct acting mechanism.
Which coils are compatible?
It supports HF2, HF3, HF4, HM2, HM3, HM4, and CM2 coil types.
Where is this valve typically used?
It is used in low-capacity or low-pressure refrigeration systems.
What is the pressure rating?
It is rated up to 45 bar.
