Can the Carbon Steel A/C Quick Connector Plug with Valve, UNF Male Thread be disconnected under full working pressure without refrigerant loss?

Yes. The Carbon Steel A/C Quick Connector Plug with Valve, UNF Male Thread is engineered to be disconnected even at maximum working pressure without refrigerant loss. Its integrated shut-off valve and design explicitly allow tightening under residual pressure and safe disconnection at full working pressure. The durable galvanized carbon steel body, CR chloroprene rubber sealing (operational −40°C to +120°C), and robust safety factors (3:1 static, 2:1 dynamic) ensure secure operation. The plug also minimizes refrigerant emissions (only 1.5 g per year) and supports a maximum vacuum of 2 mm Hg, providing both operational convenience and environmental protection.

Does the Carbon Steel A/C Quick Connector Plug with Valve, UNF Male Thread allow tightening or disconnection under residual or full working pressure without compromising safety?

Yes. The Carbon Steel A/C Quick Connector Plug with Valve, UNF Male Thread is engineered to allow tightening under residual pressure and safe disconnection even at maximum working pressure. Its integrated shut-off valve, robust galvanized carbon steel construction, and CR chloroprene rubber seal provide secure operation across -40°C to +120°C. The design minimizes refrigerant loss (1.5 g/year), supports a maximum vacuum of 2 mm Hg, and includes safety factors of 3:1 (static) and 2:1 (dynamic), ensuring reliable and safe use in demanding HVAC and refrigeration conditions.

Carbon Steel A/C Quick Connector Plug with Valve, UNF Male Thread

Additional information

Material	CS – steel (cast iron)

The screwed quick-connect plug with integrated shut-off valve, finished with an external UNF thread, is designed for professional use in air conditioning and refrigeration systems, ensuring safe and efficient filling and emptying operations. Engineered to allow tightening under residual pressure and disconnection even at maximum working pressure, it guarantees reliability and convenience in demanding conditions. Manufactured from durable galvanized carbon steel, it offers long-lasting resistance to wear and corrosion, while the CR chloroprene rubber sealing ensures optimal performance across a wide temperature range from -40°C to +120°C. With minimal refrigerant loss of only 1.5 g per year and a maximum vacuum capability of 2 mm Hg, the plug delivers exceptional efficiency and environmental protection. Its robust safety factor of 3:1 for static pressure and 2:1 for dynamic pressure provides additional assurance of secure operation, making it an ideal solution for professionals seeking precision, durability, and maximum safety in refrigeration and HVAC applications.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
BU-24421-06	Quick coupling plug GZ 5/8"-18	-	35
BU-24421-08	Quick coupling plug GZ 3/4"-16	-	60
BU-24421-10	Quick coupling plug GZ 7/8"-14	-	50
BU-24421-12	Quick coupling plug GZ 1.1/16"-14	-	50

The screwed quick-connect plug with integrated shut-off valve, finished with an external UNF thread, is designed for professional use in air conditioning and refrigeration systems, ensuring safe and efficient filling and emptying operations. Engineered to allow tightening under residual pressure and disconnection even at maximum working pressure, it guarantees reliability and convenience in demanding conditions. Manufactured from durable galvanized carbon steel, it offers long-lasting resistance to wear and corrosion, while the CR chloroprene rubber sealing ensures optimal performance across a wide temperature range from -40°C to +120°C. With minimal refrigerant loss of only 1.5 g per year and a maximum vacuum capability of 2 mm Hg, the plug delivers exceptional efficiency and environmental protection. Its robust safety factor of 3:1 for static pressure and 2:1 for dynamic pressure provides additional assurance of secure operation, making it an ideal solution for professionals seeking precision, durability, and maximum safety in refrigeration and HVAC applications.