Brass Pipe Coupling manufacturer, supplier, and exporter in India

A Brass Pipe Coupling (also known as a full coupling or female pipe socket) is a threaded sleeve with internal female threads on both ends. It is used to connect two male threaded pipe ends together in a continuous, straight axial line, or to attach a male instrument fitting directly onto a threaded pipe extension.

A full coupling has female threads extending from both ends through the entire sleeve, joining two separate pipes. A half coupling is approximately half the length and is threaded on one end while the opposite unthreaded end is designed to be brazed or welded onto tanks, headers, or vessel walls as an instrumentation tap.

Pioneer Brass Pipe Couplings are rated for working pressures up to 3,000 PSI (207 bar) for 1/8″ and 1/4″ sizes, 2,500 PSI for 3/8″, 2,000 PSI for 1/2″, and 1,200–1,500 PSI for 3/4″ to 1″ sizes, manufactured with a 4:1 safety factor per ASME B16.15 Class 125/250 standards.

NPT female couplings seal via thread taper interference when joined with male NPT pipes, requiring PTFE tape or anaerobic sealant. BSPP couplings have parallel threads and seal either via an internal center elastomeric O-ring or by compressing against an external bonded washer seated against a machined male shoulder.

Pioneer manufactures couplings from heavy-duty extruded brass bar stock conforming to CW614N / IS 319 Gr. 1 / ASTM B16 C36000, ensuring dense grain structure, zero micro-porosity, and superior hoop strength under internal fluid pressure.

Yes. In addition to equal couplings, Pioneer manufactures Brass Reducing Couplings (e.g., 1/2″ FNPT x 1/4″ FNPT) to step down pipeline sizes directly in a female-to-female configuration without extra bushings.

Yes. Brass couplings are widely utilized in factory pneumatic air headers, air tool distribution drops, and robotic manifold lines due to their corrosion resistance, low weight, and non-sparking properties.

Pioneer offers bright electrolytic nickel plating (5–8 µm), electroless nickel plating (ENP, 10–25 µm), and natural brass finishes to protect against atmospheric oxidation, moisture, and mild chemicals.

Inspect threads for cleanliness, apply 2–3 wraps of PTFE tape, thread the male pipe finger-tight, and tighten 1.5 to 3.0 turns past finger tight using an open-end wrench on the coupling hex flats. Avoid using aggressive pipe wrenches that squeeze the coupling out-of-round.

All batches are tested with calibrated thread plug gauges, subjected to pneumatic bubble leak testing at 100 PSI, and supplied with EN 10204 Type 3.1 inspection reports.