Product Parameters
| Item | Specification |
|---|---|
| Material | Carbon Steel, Stainless Steel (304/316), Brass |
| Connection | Threaded (NPT/BSP), Socket Weld, Butt Weld |
| Size Range | 1/8" – 4" |
| Pressure Rating | Up to 6000 PSI |
| MOQ | 10 pcs |
description
CNC machined pipe fittings connect and control flow in hydraulic and pneumatic systems. Produced from solid bar stock rather than castings, these fittings offer consistent dimensions and clean surfaces that ensure reliable sealing across every fitting in every order. Carbon steel handles high-pressure hydraulic lines. Stainless steel 304 and 316 take on chemical processing, food-grade, and marine applications. Brass is common in pneumatic systems and instrumentation where machinability and cost-effectiveness matter. Threaded connections (NPT, BSP) are most common for fluid systems needing assembly and disassembly access. Socket weld and butt weld fittings provide permanent, leak-free joints for high-pressure applications.
Why CNC Machined Over Casting
Cast fittings vary from piece to piece - the sand mold erodes, the molten metal shrinks unpredictably, and the surface finish is rough. CNC machined fittings start from solid bar with known dimensions and machine to consistent tolerances every time. For high-pressure hydraulic systems where a bad fitting means a leak or worse, the consistency of CNC machining matters.
FAQ
Q1: MOQ?
A1: 10 pieces.
Q2: Size range?
A2: 1/8" through 4" diameter.
Q3: Pressure ratings?
A3: Up to 6000 PSI depending on size and connection type.
Q4: Materials?
A4: Carbon steel, stainless steel (304/316), brass.
Q5: Connection types?
A5: NPT/BSP threaded, socket weld, butt weld.
Q6: Custom fittings?
A6: Yes. Custom configurations and non-standard sizes available.
Quality is non-negotiable in precision manufacturing. Every component undergoes rigorous inspection at each stage of production.
- ISO 9001:2015 - Quality management system covering design and manufacturing
- API 6D / API 600 - Design and testing compliance for valve components and flanges
- Hydrostatic Pressure Testing - Every valve body pressure-tested to 1.5× rated pressure
- MPI / LPI - Magnetic particle and liquid penetrant inspection for weld integrity
- CE / ATEX - Pressure equipment directive compliance for EU market available
- CMM Inspection - Coordinate measuring for complex geometries and tight tolerances
- Surface Roughness Measurement - Ra, Rz, and Rt charting with every inspection report
- Passivation / Electropolishing - ASTM A967 procedures for corrosion resistance
- Material Traceability - Heat number tracking from raw material to finished part
From raw material to finished product, every step is controlled and documented:
- Pattern Making - Wooden or metal pattern fabrication for sand/centrifugal/investment casting
- Molding - Sand casting, shell mold, centrifugal, or lost-wax investment casting setup
- Melting & Pouring - Controlled furnace melting with chemistry and temperature monitoring
- Solidification & Shakeout - Controlled cooling with riser/removal and core shakeout
- Heat Treatment - Annealing, normalizing, or solution treatment per specification
- Machining - CNC machining, drilling, and tapping to final dimensions
- Surface Treatment - Grinding, welding, or coating as required
- Inspection & Testing - Dimensional, visual, hydrostatic, or NDT inspection
- Cleaning & Packaging - Sand removal, degreasing, rust prevention, and packaging
Hot Tags: cnc machined pipe fittings, China cnc machined pipe fittings manufacturers