Nickel-plated brass push-in fittings offer an ideal balance between plastic push-in fittings and stainless steel push-in fittings. By adding an electroplated nickel coating over the brass body, they retain the tool-free, quick-install convenience of push-in fittings while significantly improving corrosion resistance and mechanical strength.
Fokca nickel-plated brass push-in fittings are precision-machined from high-quality brass stock, featuring a uniform and dense electroplated nickel layer. Seals are available in NBR or FKM. They are offered with tube ODs from 4mm to 16mm, NPT/BSPP/BSPT threads, and a full range of types including straight, elbow, tee, bulkhead, and reducer. Striking a balanced trade-off between corrosion resistance, mechanical strength, and cost, they are a reliable connection choice for pneumatic systems in humid environments.
Nickel-plated brass push-in fittings are pneumatic tube connectors made by applying a dense electroplated nickel coating onto brass push-in fittings. They retain the plug-and-play convenience of standard push-in fittings while offering significantly improved corrosion resistance and surface hardness through the nickel plating process, serving as an ideal balance between plastic fittings and stainless steel fittings.
In pneumatic systems, push-in fittings are widely used for their tool-free, quick-installation advantages. Fokca offers three material series — plastic, nickel-plated brass, and stainless steel — to meet different application requirements. Nickel-plated brass strikes a good balance between corrosion resistance, mechanical strength, and cost — more durable than plastic fittings and more cost-effective than stainless steel fittings.
| Aspect | Plastic Push-In Fittings | Nickel-Plated Brass Push-In Fittings | Stainless Steel Push-In Fittings |
|---|---|---|---|
| Body Material | PBT plastic | Nickel-plated brass | 304 / 316 stainless steel |
| Seal Ring | NBR | NBR / FKM | FKM |
| Corrosion Resistance | Fair | Good | Excellent |
| Mechanical Strength | Medium | High | Highest |
| Working Pressure | 0 ~ 1.0 MPa | 0 ~ 1.0 MPa | 0 ~ 1.5 MPa |
| Working Temperature | -10℃ ~ 60℃ | -10℃ ~ 60℃ (NBR) / -20℃ ~ 120℃ (FKM) | -20℃ ~ 140℃ |
| Weight | Light | Moderate | Heavy |
| Cost | Low | Medium | High |
| Appearance | Black / White | Silver-white metallic | Silver-white metallic |
| Applications | General automation, electronics, packaging | Humid environments, food processing, marine, mild acids / alkalis | Strong corrosion, high temperature, food / pharma |
Nickel-plated brass fittings strike a balance between plastic and stainless steel — the nickel coating fully isolates the brass substrate from the external environment, achieving 48-96 hours of salt spray test performance while maintaining high mechanical strength. They are particularly suitable for applications involving frequent washdowns, salt spray corrosion, outdoor exposure, and mild acids or alkalis.
Compared to plastic fittings, nickel-plated brass fittings offer higher mechanical strength and impact resistance, making them more reliable in applications with significant vibration or high tubing stress. The threaded portions are strong and resist stripping even after repeated assembly and disassembly.
The nickel coating provides a uniform silver-white metallic luster, offering a more refined appearance than plastic fittings. For industries with aesthetic requirements such as food and pharmaceutical manufacturing or precision electronics, nickel-plated brass fittings significantly enhance the overall look of the equipment.
When paired with FKM seals, nickel-plated brass fittings can handle compressed air, water, mild acid/alkali solutions, and certain oils, offering a media compatibility range that sits between plastic and stainless steel fittings.
Precision Machining – Made from high-quality brass stock with precision machining, ensuring accurate thread dimensions and proper fit. Smooth surface with no burrs for easy installation and reliable sealing.
Uniform Nickel Plating – Dense and uniform electroplated nickel coating, 5-15μm thick, with strong adhesion that will not peel or flake off. 48-96 hours salt spray test performance for excellent corrosion resistance.
Reliable Connection – Dual sealing structure with stainless steel gripper ring and O-ring. The gripper ring firmly holds the tube to prevent pull-out, while the O-ring ensures airtightness for long-term use without loosening or leakage.
Complete Specifications – Tube ODs from 4mm to 16mm, as well as inch sizes. Thread types include NPT, BSPP(G), and BSPT(R) from 1/8 to 1/2 inch. Fitting types include straight, elbow, tee, and reducer.
Flexible Configuration – Standard NBR seals for compressed air; optional FKM seals for higher temperatures or chemical media.
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