Can the A/C quick connector plug with valve, UNF GZ, carbon steel be safely unscrewed under maximum working pressure and residual pressure?

Yes. The A/C quick connector plug with valve, UNF GZ, carbon steel is designed to be tightened and loosened under residual and maximum working pressure. The product description explicitly states tightening under residual pressure is allowed and that it âcan be unscrewed under maximum working pressure.â Construction and specifications that support safe operation include carbon steel (galvanized) body, CR (chloroprene) sealing rated â40Â°C to +120Â°C, low refrigerant loss (1.5 g/year), and stated safety factors (3:1 static, 2:1 dynamic). Precautions: ensure the valve and thread are in good condition, the operating temperature and media are within CR rubber limits, and that the system pressure does not exceed the connectorâs rated maximum (consistent with the given safety factors). Follow standard service procedures and PPE when working on pressurized A/C or refrigeration circuits.

Does the A/C quick connector plug with valve, UNF GZ, carbon steel meet the 1.5 g/year refrigerant loss specification?

Yes. The A/C quick connector plug with valve, UNF GZ, carbon steel meets the 1.5 g/year refrigerant loss specification - the product description explicitly states "Refrigerant loss: 1.5 g/year." All listed materials and features (carbon steel, galvanized; CR sealing; allowable tightening under residual pressure; specified max vacuum and safety factors) are consistent with that declared leakage rating.

Is the A/C quick connector plug with valve, UNF GZ, carbon steel suitable for use with refrigerants at -40Â°C to +120Â°C?

Yes. The A/C quick connector plug with valve, UNF GZ, carbon steel is suitable for use with refrigerants in the temperature range â40Â°C to +120Â°C. The componentâs sealing material is CR (chloroprene rubber) which is specified to operate from â40Â°C to +120Â°C, and the plug is designed for air conditioning and refrigeration service (filling and emptying systems). Additional relevant data: carbon steel, galvanized construction; allowed tightening/unscrewing under residual or maximum working pressure; refrigerant loss 1.5 g/year; max vacuum 2 mm Hg; safety factor 3:1 (static) and 2:1 (dynamic).

A/C quick connector plug with valve, UNF GZ, carbon steel

Additional information

Material	CS – steel (cast iron)

Screwed quick-connect plug with shut-off valve, finished with external UNF thread, intended for air conditioning and refrigeration, used for filling and emptying systems. Tightening under residual pressure is allowed (can be unscrewed under maximum working pressure). Material: carbon steel, galvanized. Sealing: CR – chloroprene rubber (from -40°C to +120°C). Refrigerant loss: 1.5 g/year. Max. vacuum: 2 mm Hg. Safety factor: 3:1 (static pressure), 2:1 (dynamic pressure).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
BU-24421-06	Quick coupling plug GZ 5/8"-18	-	35	In stock	Enquiry
BU-24421-08	Quick coupling plug GZ 3/4"-16	-	60	In stock	Enquiry
BU-24421-10	Quick coupling plug GZ 7/8"-14	-	50	In stock	Enquiry
BU-24421-12	Quick coupling plug GZ 1.1/16"-14	-	50	In stock	Enquiry

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Screwed quick-connect plug with shut-off valve, finished with external UNF thread, intended for air conditioning and refrigeration, used for filling and emptying systems. Tightening under residual pressure is allowed (can be unscrewed under maximum working pressure). Material: carbon steel, galvanized. Sealing: CR – chloroprene rubber (from -40°C to +120°C). Refrigerant loss: 1.5 g/year. Max. vacuum: 2 mm Hg. Safety factor: 3:1 (static pressure), 2:1 (dynamic pressure).