Product details
The Castel 3940/7 moisture and liquid indicator is engineered to provide a dependable visual check of moisture levels and liquid presence in refrigeration and air conditioning systems. Featuring a 7/8″ copper braze connection, it integrates seamlessly into compatible refrigerant lines and offers a clear viewing window that signals system condition. With a robust professional-grade design, this indicator is ideal for installation, inspection, and routine maintenance in commercial and industrial cooling environments where early detection of moisture and liquid conditions helps preserve performance and protect system components.
Key Benefits
Provides clear visual monitoring of moisture contamination and liquid presence
Helps detect potential system issues early to protect components
Supports accurate diagnostics and maintenance operations
Durable construction for reliable long-term performance
Improves efficiency and reliability of refrigeration and HVAC systems
Specifications
Product Type: Moisture & Liquid Indicator
Model: 3940/7
Connection Size: 7/8″ Copper Braze
Category: Refrigeration Valves & Accessories
Sub-Category: Sight Glasses & Moisture Indicators
Application: Refrigeration and air conditioning systems
Function: Visual monitoring of moisture and liquid condition
Brand: Castel
Applications
Moisture and liquid condition monitoring in HVAC systems
Refrigeration line inspection and diagnostics
Commercial and industrial cooling system maintenance
Professional HVAC and refrigeration servicing
FAQs
What is the purpose of the 3940/7 moisture & liquid indicator?
It visually indicates both moisture contamination and liquid presence to help technicians monitor system health.
What connection type does this indicator use?
It features a 7/8″ copper braze connection for secure installation.
Why is detecting moisture and liquid important?
Moisture and liquid can harm performance and components, so early detection helps prevent issues.
Is this indicator suited for professional HVAC applications?
Yes, it’s designed for commercial and industrial refrigeration and air conditioning systems.
Does it support accurate diagnostics and maintenance?
Yes, its clear viewing window enhances system inspection and servicing.
