Description
Precision CNC & Hot Forged Brass Gas Parts
Operating from our 20,000 square foot plant in Jamnagar, Gujarat since 1996, Premier Brass Industries manufactures custom brass gas parts for international OEMs, gas appliance manufacturers, and plumbing distributors across North America, Europe, and Russia. We combine in-house brass bar extrusion, hot closed-die forging, and multi-axis CNC turning and automat lathes to produce gas-tight components with dimensional tolerances within ±0.020 mm.
Brass Gas Components Manufactured to Customer Drawings
Below is our primary manufacturing range of small and large gas transmission components exported to foreign buyers, machined from extruded hex/round bars or hot-forged billets:
Calibrated Gas Burner Nozzles & Pilot Jets
Precision micro-drilled brass gas burner jets with orifice sizes from 0.25 mm to 3.50 mm. Machined on precision CNC and automat lathes to hold tolerances within ±0.020 mm, ensuring uniform gas flow rate in domestic cooktops and commercial heating equipment.
SAE 45° Flare Fittings & Gas Hose Barbs
Brass flare nuts, male/female unions, tees, and 90° elbows per SAE J512 standards. Flare seats are burnished to Ra 0.4 µm surface finish for metal-to-metal sealing on copper tubing. Serrated hose nipples available for 8 mm, 10 mm, and 12 mm flexible gas pipes.
LPG & CNG Cylinder Valves & Regulators
Hot-forged CW617N brass valve bodies for commercial LPG cylinders and high-pressure automotive CNG circuits. Pressure rated up to 260 bar. Single-clamping CNC lathe threading maintains concentricity and prevents spindle seat leakage.
Gas Cock Bodies & Utility Meter Unions
Two-piece and three-piece forged brass valve housings and union adaptors for utility gas meters. Anti-blowout stems and precision machined internal ball recesses conforming to EN 331 and DIN EN 549 specifications.
Brass Alloy Grades & International Equivalents
Raw material is melted and extruded in-house into certified brass rods. Chemical composition is verified by Optical Emission Spectrometer (OES) prior to machining:
| Application Category | USA & Canada (ASTM) | Germany & EU (DIN EN) | United Kingdom (BS) | Russia & EAEU (GOST) |
|---|---|---|---|---|
| Free-Cutting Turned Brass | ASTM B16 C36000 | DIN EN 12164 CW614N | BS 2874 CZ121 | ГОСТ 15527 ЛС59-1 |
| Hot Forging Grade Brass | ASTM B124 C37700 | DIN EN 12165 CW617N | BS 2872 CZ122 | ГОСТ 15527 ЛС58-2 |
| Dezincification Resistant (DZR) | ASTM B371 C69400 | DIN EN 12164 CW602N | BS 2874 CZ132 | — |
| Low-Lead Brass Formulation | ASTM B927 C27450 Eco | DIN EN 12164 CW511L | Lead ≤ 0.1% | — |
International Gas Thread Standards We Machine
Every thread profile is checked during CNC cycle time using master Go / No-Go plug and ring gauges:
NPT & NPTF Dryseal
ANSI/ASME B1.20.1 & B1.20.3 taper threads for CSA 6.14 compliant residential gas regulators and appliances.
BSPP (G) & BSPT (R)
BS EN 10226-1 (taper R) and ISO 228-1 (parallel G) threads with deburred entry chamfers for flat bonded seals.
DIN Metric & EN 549
DIN 3852 & DIN ISO 2768-m tolerances. Fine metric pitches (M10×1, M12×1.5) for German heating equipment.
ГОСТ 6357-81
Cylindrical pipe threads machined from ЛС59-1 brass for gas distribution manifolds across Eurasia.
Standard Inspection & Testing Protocol
To maintain dimensional consistency and pressure safety, our manufacturing process follows four documented inspection stages:
01
Spectrometer Melt Check
Raw brass heats are checked by in-house Optical Emission Spectrometer (OES) to verify copper, lead, and zinc percentages before extrusion.
02
First Article Inspection (FAI)
Initial production samples undergo 3D CMM dimensional verification and 50× optical profile projector inspection for thread flank angles.
03
Pneumatic Submerged Leak Check
Valve bodies and pressure-containing components are submerged under water at 6 to 8 bar air pressure to detect any leakage or porosity.
04
VCI Export Packaging
Finished components are ultrasonically degreased, packed in sealed VCI anti-corrosion barrier bags, 7-ply export boxes, on ISPM-15 wooden pallets.
Frequently Asked Questions
Click on any question below to view the technical answer:
01.
Which brass alloy is recommended for high-pressure LPG vs. CNG applications?
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02.
How are gas valve bodies tested for leakage before shipment?
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03.
What is your standard Minimum Order Quantity (MOQ) and production lead time?
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04.
Do you supply EN 10204 Type 3.1 material test certificates with shipments?
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TECHNICAL DRAWINGS & RFQ
Submit 2D/3D Drawings for Engineering Assessment
We review technical drawings in PDF, STEP, or IGES formats. Include target alloy grade, thread specifications, and estimated annual batch sizes for a formal engineering quote within 24 hours.
Email CAD Drawings
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