A refrigeration access valve provides a service connection to a refrigeration system. Technicians connect pressure gauges, a vacuum pump, and refrigerant hoses to the valve to check system pressure, remove air and moisture under vacuum, add refrigerant, and recover refrigerant.
Our brazed refrigerant access valve has a brass body, a copper tube that connects to the refrigerant line, a spring-loaded Schrader core, and a brass cap. An installer brazes the copper tube into the refrigerant line. Refrigeration access valve also known as NRV, refrigeration service valve, and refrigerator access valve, pin valve, brass refrigeration access valve, and charging valve.
When a compatible service connector presses the Schrader core, the valve opens and allows access to the refrigerant circuit. The spring closes the core when the technician removes the connector. The brass cap covers the port and helps prevent leaks.
We are a refrigeration access valve manufacturer, and we customize copper tube length, thickness, and size, along with brass caps and brass bodies, according to customer requirements.
Our refrigeration access valves are used in HVAC fittings and refrigeration equipment. We supply refrigeration access valves to manufacturers, distributors, and industrial buyers across the USA, Asia, and European markets, including Germany, France, Spain, the Czech Republic, the Netherlands, the UK, and Italy.
We support medium- to high-volume production requirements. For quality and testing, we also support samples and small batches.
Request a Quote for Refrigeration Access ValvesThe drawing below is our standard drawing for the refrigerant access valve. We can customize the copper tube length and size, brass cap, and brass body diameter according to customer requirements.
| Specification | Standard product |
|---|---|
| Overall refrigerator access valve length | 120 mm (4.72 in) |
| Copper tube length | 95 mm (3.74 in) |
| Copper tube outside diameter | 6.35 mm (0.25 in), equivalent to 1/4 in OD |
| Weight | 16 g (0.0353 lb) |
| Valve core | Schrader-type core with steel pin |
| Materials | Brass valve body, copper tube, brass cap, rubber-sealed valve core |
Our refrigeration access valve has a brass body, a copper tube, a steel-pin Schrader core, and a brass cap. First, we manufacture the brass body and cap using CNC machining. Then we cut the copper tube to the required length. Our standard brass grade for the brass body and cap is IS 319 free-cutting brass. Then we join the copper tube and brass body using brazing to create a secure connection.
During installation, the technician removes the Schrader core and brass cap, brazes the other end of the copper tube to the refrigeration line, allows the joint to cool, and then reinstalls the core and cap. The brass body holds the Schrader core and provides access for service equipment. When a compatible connector presses the core pin, the valve opens to allow technicians to check system pressure, evacuate the system, charge refrigerant, and recover refrigerant.
When the connector is removed, the spring returns the core to its closed position. The brass cap covers the service port, and its O-ring helps prevent leaks by providing a proper seal.
| Parameter | Details |
|---|---|
| Standard Copper Tube OD | 1/4 in (6.35 mm), 3/16 in (4.76 mm), 5/16 in (7.94 mm), 3/8 in (9.53 mm) |
| Customization | Copper tube length and size, brass body diameter, and brass cap |
| Order Quantities | Medium and bulk quantities accepted |
| Bulk Pricing | Special pricing available for bulk orders |
| Ready Stock | Stock available for smaller quantities, subject to availability |
| Lead Time: 5,000 Pieces | Approximately 1 week |
| Lead Time: 10,000 Pieces | 10-15 days |
| Lead Time: 50,000 Pieces | 25-30 days |
| Packaging | Standard and customized packaging options available |
Our standard packaging includes 10 pieces per plastic poly bag, 100 pieces per small carton, and 2,000 pieces per master carton. For sea shipments, we use wooden pallets. Customized packaging, blister packaging, and custom labels are also available according to customer requirements.
Our refrigerant access valve is used in refrigeration and air-conditioning systems, including refrigerators, split and packaged air conditioners, heat pumps, and commercial refrigeration equipment.
It provides a service connection for checking refrigerant pressure, evacuating the system, charging refrigerant, and recovering refrigerant during installation, maintenance, and repair.
Most refrigeration systems use two service access points for efficient recovery: one on the high-pressure side and one on the low-pressure side. Some systems can be recovered through a single access point, depending on the system design and the recovery procedure.
The maximum working pressure must come from the approved technical specification for the exact valve design. Match the rating to the system’s maximum design pressure and operating temperature.
Yes. A qualified technician can replace the core and the system remains charged by using a core-removal tool rated for the refrigerant and system pressure. The tool isolates the port during removal. Without a suitable tool, recover the refrigerant before removing the core.
Yes. The core restricts flow through the service port, which can extend evacuation and recovery time. A technician can use a compatible, pressure-rated core-removal tool to increase flow, then reinstall the core according to the tool and equipment instructions.
Common causes include a worn core seat, contamination at the seat, a damaged core seal, a loose cap, a missing cap, a damaged cap O-ring, and a leaking brazed joint. After service, a technician should check the core, cap seal, and joint with an approved leak-detection method.
No. A technician must recover refrigerant from the section being worked on and confirm safe conditions before applying heat. Remove the Schrader core before brazing to prevent heat damage. After the joint cools, reinstall the core, then pressure-test and leak-check the system according to the equipment manufacturer’s instructions.
No. The Schrader core closes the service port when no service connector is attached. This access valve does not isolate flow through the main pipe. Use a suitably rated shut-off valve when isolation is needed.
Compatibility depends on the valve’s rated working pressure, core seal, and cap O-ring material. Confirm the refrigerant and system design pressure against the technical specification before use.
We keep refrigeration access valve in stock for quick dispatch. Send us your required quantity and shipping details to request a quote. Special pricing is available for bulk orders.
Request a Quote For Refrigerator Access Valve
