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Designed for stable connections in industrial piping and equipment assemblies, NINGXING Electroplated Brass Double Female Connector features a precision-machined brass body with a protective nickel-plated finish. The electroplated surface enhances corrosion resistance and durability in humid or demanding environments, while the double female thread structure allows flexible connection between male-threaded pipes, fittings, and components.
NINGXING Electroplated Brass Double Female Connector is made from CuZn39Pb3 brass with a nickel-plated surface for improved corrosion resistance, wear resistance, and surface durability. Its female-to-female configuration connects two male-threaded pipes, fittings, or equipment ports and is suitable for water, oil, compressed air, gas, HVAC, electrical, and mechanical applications. Metric, G, NPT, and PG thread options are available.
Product Structure
1. Female Thread
The Electroplated Brass Double Female Connector has female threads at both ends, allowing two male-threaded components to be joined without welding. It can be used for pipe extension, equipment connection, or replacement of existing threaded fittings. Precision-machined threads provide smooth engagement and help reduce installation problems caused by dimensional variation.
2. Nickel Plating
The brass body is finished with nickel electroplating to provide additional surface protection in humid and demanding working environments. The plated layer also improves wear resistance and gives the connector a clean metallic appearance, making it suitable for both industrial equipment and visible mechanical assemblies.
Material and Manufacturing
1. Brass Material
The main body uses CuZn39Pb3 brass, offering good machinability, mechanical strength, and corrosion resistance for common industrial piping applications. Raw materials can be inspected before machining to help maintain consistent chemical composition and product quality.
2. CNC Machining
NINGXING uses CNC turning and machining equipment to produce internal threads, bores, and other critical dimensions. Applicable dimensions can be controlled to approximately ±0.01mm. After machining, parts undergo deburring and surface finishing to improve thread smoothness and handling safety.
3. Electroplating
The nickel electroplating process provides a protective surface layer against moisture and general environmental exposure. Finished products can undergo appearance and corrosion-resistance inspection according to customer or project requirements.
Technical Specifications
Parameter
Specification
Material
CuZn39Pb3 Brass
Surface Treatment
Nickel Electroplating
Connection Type
Female / Female
Thread Standards
Metric / G / NPT / PG
Working Pressure
≤1.6 MPa at Room Temperature
Working Temperature
-40℃ to +120℃
Applicable Media
Water / Oil / Gas / Compressed Air
Certifications
ISO 9001:2015 / CE / RoHS
Customization
OEM / ODM
Actual pressure and temperature limits depend on size, sealing method, medium, and complete system configuration.
Size Reference
Size
Nominal Thread Size
Major Diameter (mm)
Minor Diameter (mm)
Thread Pitch (mm)
1 fen
G1/8
9.728
8.566
0.907
2 fen
G1/4
13.157
11.455
1.337
3 fen
G3/8
16.662
14.950
1.337
4 fen
G1/2
20.955
18.631
1.814
6 fen
G3/4
26.441
24.117
1.814
1 inch
G1"
33.249
30.291
2.309
1-1/4 inch
G1-1/4"
41.910
38.952
2.309
1-1/2 inch
G1-1/2"
47.803
44.845
2.309
2 inch
G2"
59.614
56.656
2.309
2-1/2 inch
G2-1/2"
75.184
72.226
2.309
3 inch
G3"
87.884
84.926
2.309
4 inch
G4"
113.030
110.070
2.309
The table shows common G-thread sizes. Metric, NPT, and PG specifications can be customized according to drawings or samples.
Application Cases
1. Industrial Piping
In a large chemical plant cooling-water pipeline modification project, the customer needed to connect multiple male-threaded pipes without changing the existing layout. The connector allowed installation using threaded assembly instead of welding. Hundreds of connection points were completed within two days, reportedly reducing installation time by approximately 70%. The nickel-plated surface also provided suitable protection in the humid plant environment.
2. HVAC Systems
A commercial complex required connections between air-conditioning equipment and chilled-water pipelines in a confined mechanical room. The compact threaded structure allowed installers to complete connections with standard hand tools where welding was inconvenient. The product's temperature range of -40℃ to +120℃ was suitable for the specified operating conditions.
3. Electrical and Instrumentation
A railway signaling equipment supplier used brass threaded components as interface parts for signal control boxes. The precise thread dimensions provided smooth engagement with the enclosure, while the nickel-plated surface helped reduce corrosion-related installation and maintenance problems.
Installation
1. Thread Matching
Before installation, confirm the thread standard, nominal size, and thread specification of both mating components. Metric, G, NPT, and PG threads should not be forced together when their specifications do not match.
2. Sealing
PTFE tape or a suitable thread sealant is normally applied to the male thread according to the thread type and application. The sealing material should be applied evenly without blocking the internal passage.
3. Testing
After tightening, the assembled system should undergo an appropriate pressure or leakage test before normal operation. Excessive tightening should be avoided because it may damage the threads or fitting body.
OEM and Bulk Supply
1. Customization
NINGXING supports OEM/ODM customization for thread standards, dimensions, connection lengths, surface treatments, and other requirements. Customers can provide drawings, samples, or technical specifications for evaluation.
2. Bulk Orders
The Electroplated Brass Double Female Connector can be supplied in bulk for distributors, equipment manufacturers, engineering contractors, and maintenance companies. Packaging, labeling, quantity, and delivery requirements can be coordinated according to the order.
FAQ
What is this connector used for?
It connects two male-threaded pipes, fittings, or equipment ports and can be used for pipe extension, equipment interfaces, HVAC systems, and mechanical assemblies.
What thread standards are available?
Metric, G, NPT, and PG thread configurations are available. The exact size and thread specification should be confirmed before ordering.
Why is nickel plating used?
Nickel plating improves surface protection, wear resistance, and resistance to moisture and general environmental exposure while providing a consistent metallic finish.
What media can it handle?
It is suitable for water, oil, compressed air, gas, and other compatible non-corrosive media. Material and sealing compatibility should be confirmed for special fluids.
What is the maximum working pressure?
The stated working pressure is up to 1.6 MPa at room temperature under specified conditions. The actual rating depends on size, temperature, medium, sealing method, and system configuration.
Can it be customized?
Yes. NINGXING provides OEM/ODM customization for thread specifications, dimensions, lengths, and surface treatments.
Does NINGXING provide certifications?
Yes. The Electroplated Brass Double Female Connector is manufactured under an ISO 9001:2015 quality management system and is available with CE and RoHS certifications.
Contact NINGXING
For standard products, bulk purchasing, or OEM/ODM projects, provide the required thread type, size, medium, pressure, temperature, surface treatment, and quantity. NINGXING can provide the corresponding technical configuration and production support.
Need brass rods or custom fittings? Send your drawings or samples today. ISO9001 certified, RoHS & PED compliant. Get a fast, professional quote from our expert team. Inquire now!
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