Tube fittings are essential components in pneumatic and fluid systems, used for connecting, redirecting, branching, and sealing pipelines. Brass fittings are typically made from brass bars or molds. Brass offers excellent strength, corrosion resistance, and machinability, making it the preferred material for industrial fittings. Compared with cast iron or plastic, brass is more durable and less prone to cracking; compared with stainless steel, it is more cost-effective and easier to machine.
The fittings are available in natural brass or nickel-plated finishes. Thread sizes range from 1/8" to 1", with standards including NPT, BSPP (G), and BSPT (R), compatible with various pneumatic components and pipeline interfaces.
A tube fitting is a fundamental component in pneumatic, hydraulic, and fluid piping systems, used for connecting, redirecting, branching, or sealing pipelines. It reliably joins tubes, steel pipes, hoses, or various pneumatic components through standardized threaded interfaces, serving as an indispensable “joint” in the piping system.
Fokca offers a full range of tube fittings in materials such as brass, nickel-plated brass, and stainless steel. The range includes common types like nipples, bushings, plugs, tees, elbows, straight connectors, and unions. Thread sizes range from 1/8" to 1", meeting the connection needs of various pneumatic, water, and oil piping systems.
Durable and strong – Made from high-quality brass or stainless steel bars with precision machining, offering high mechanical strength and pressure resistance. Nickel-plated versions are finished via barrel or hanging plating, providing uniform coating, strong adhesion, enhanced corrosion resistance, and surface hardness with a silver-white appearance.
Complete specifications – Thread sizes: 1/8", 1/4", 3/8", 1/2", 3/4", 1". Thread standards: NPT (tapered, US standard), BSPP (G) (cylindrical, UK standard), BSPT (R) (tapered, UK standard). Compatible with various pneumatic components and pipelines.
Variety of types – Includes nipples, bushings, plugs, tees, elbows, straight connectors, unions, and customizable options.
Reliable quality – Manufactured with high-precision CNC machines, ensuring accurate threads, smooth surfaces, and tight seals. Working pressure: 1.0–1.5 MPa; working temperature: -20°C to 120°C. Suitable for compressed air, water, and oil.
Thread sealing: Apply PTFE tape or thread sealant on male threads before installation to ensure airtightness.
Tightening torque: Use proper tools and avoid overtightening to prevent thread damage or fitting deformation.
Thread compatibility: Confirm that fitting threads match the connection standard. NPT and BSPT are both tapered threads but have different profiles and are not interchangeable.
Medium compatibility: Brass is not suitable for strong acids, strong alkalis, or media reactive with copper (e.g., ammonia).
Regular inspection: For long-term use, if leakage occurs, retape the threads or replace the fitting.
Q1: What are nipples, bushings, and plugs?
A1:
Nipple (Hex Nipple): Male threads on both ends, used to connect two female-threaded ports.
Bushing: Male thread on one end, female thread on the other, used for thread size conversion or connection adaptation.
Plug: Male thread on one end, used to seal unused female-threaded ports.
Q2: What are the differences between NPT, BSPP, and BSPT?
A2: NPT is a US tapered thread, BSPP (G) is a UK cylindrical thread, and BSPT (R) is a UK tapered thread. They are not interchangeable; confirm the device interface standard when selecting.
Q3: What are the advantages of nickel-plated fittings?
A3: Nickel plating improves corrosion resistance (rust prevention), surface hardness (wear resistance), and appearance, suitable for humid environments or applications requiring aesthetics.
Q4: Can brass fittings be used for drinking water?
A4: Brass contains trace amounts of lead and is not recommended for drinking water. Use lead-free copper, stainless steel, or fittings specifically designed for potable water.
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