This 3/4" SAE nut for ø 18 mm copper pipe is designed for robust, leak-resistant connections in refrigeration and air conditioning systems. Compatible with reference codes from Castel and Olab, it is ideal for professional installations using a wide range of ASHRAE 34:2019 approved refrigerants.
Features
SAE flare: 3/4"
Copper pipe diameter: 18 mm
Maximum pressure: 50 bar
Compliant with ASHRAE 34:2019 for Class A1, A2L, A3 refrigerants
Looking for similar items or different specifications for this Nut 3/4" SAE ø 18 mm for Refrigeration – Compatible with Castel and Olab?
Explore our full range in the Horeca, Refrigeration Fittings categories
*
This part is compatible to the original part number. Part numbers are always leading.
Ensure the health and efficiency of your refrigeration and HVAC equipment with the Castel Ø 12 mm Humidity Indicator. When moisture enters the system, the indicator shifts from blue to pink/red, giving you an immediate, easy-to-read alert.
Instant Color Alerts: Clear visual change for fast moisture detection.
Ø 12 mm Standard...
Prevent moisture-related issues in your refrigeration and HVAC systems with the Danfoss Humidity Indicator SGN6. Its inline design features a Ø ¼″ FM SAE connection and a vivid color-changing element that transitions from blue to pink when moisture is present, enabling fast, reliable maintenance checks.
Ø ¼″ FM SAE Thread: Standard...
Simplify mixed-thread installations in your HVAC and refrigeration systems with the Castel reducing nut, featuring a 3/8″ SAE male thread and a Ø 6 mm (1/4″) female thread. Precision-machined from high-grade brass and finished for superior corrosion resistance, this component provides a secure, leak-proof connection under demanding conditions....
Ensure the health of your refrigeration and HVAC systems with the Castel ½″ MM SAE Humidity Indicator. This inline device provides instant, color-coded feedback—shifting from blue to pink/red—to alert you to moisture ingress before it causes damage. Compatible with Castel models 3910/44 and 3710/44, its robust brass body and standard MM SAE...
Ensure secure, leak-free connections in your refrigeration and HVAC systems with the Castel Nut 3/8″ SAE, featuring a precise Ø 3/8″ internal thread. Crafted from premium brass and finished for corrosion resistance, this nut delivers dependable performance under demanding conditions.
Precision Machining: Guarantees a tight, leak-proof seal.
Standard 3/8″...
Maintain dry, contaminant-free refrigerant flow in your cooling circuits with the Castel Humidity Indicator ½″ FM SAE. These Italian-made indicators feature robust brass bodies and an integrated color-change sight glass for instant moisture detection.
Features & Benefits
Dual Models: 3950/44 & 3750/44 to suit system preferences...
Prevent moisture damage and maintain peak efficiency in your HVAC and refrigeration systems with the Danfoss Humidity Indicator SGN6S. Designed for 6 mm copper tubing, its color‐changing window provides immediate feedback—turning from blue to pink—so you can schedule maintenance before issues arise.
6 mm Inline Connection: Standard...
Enhance your HVAC and refrigeration systems with the Castel humidity indicator featuring a 5/8″ FM SAE connection. Designed for fast, reliable moisture detection, this inline device provides clear, color-coded feedback—turning from blue to pink/red—to alert you instantly to moisture ingress.
Instant Visual Alerts: Color change from...