Stainless Steel Fluid Valve Block with Flange Mounting Base, Cross-Drilled Channels and 0.01mm Port Fit
Valve Block Flange Base Turning
,Stainless Manifold Base Machining
,Port Face 0.01mm Fit
- Port Fit 0.01 mm face flatness and thread position
- Channels Deburred — every intersecting bore cleaned
- Pressure 1.5× hydrostatic test on request
ISO 9001:2015 · 316L stainless steel · passivated and clean-packed · NDA available · Exporting since 2008
This fluid valve block with a flange mounting base is turn-mill machined from stainless steel by Dongguan Changxinda Precision Technology Co., Ltd., a CNC factory established in 2008. The block carries cross-drilled flow channels, threaded ports and a mounting flange, and the port faces are finished flat and perpendicular to their threads so O-rings and bonded seals seat without shimming. Port position and face flatness are held to ±0.01 mm, verified with thread gauges and a CMM.
A valve block leaks where the channel meets the port. Intersecting bores leave a burr ring at the junction that tears seals and traps swarf, and a port face that is not square to its thread leaves the fitting sitting at an angle. We drill the channels in sequence, deburr every intersection from both directions, then face and thread each port from a common datum so the fitting torques down flat and the seal contacts evenly.
Each valve block follows a controlled nine-stage route:
- Drawing review & DFM: STEP / IGES / SolidWorks / 2D PDF checked for channel routing, port threads, wall thickness and pressure class.
- Material: 316L stainless steel with mill certificate and heat-number traceability.
- Programming: CAM toolpaths sequenced so channels are drilled before ports are faced and threaded.
- Block squaring: all six faces machined true so every later datum is reliable.
- Channel drilling: cross-drilled bores machined to depth in sequence, with chip clearance at each intersection.
- Deburring: intersections deburred mechanically and by hand from both directions until no ring remains.
- Port facing & threading: each port faced flat and perpendicular to its thread, thread cut to gauge tolerance.
- Cleaning & passivation: ultrasonic cleaning, then passivation for corrosion resistance.
- Inspection: CMM port positions, thread gauges, surface finish and hydrostatic pressure test on request.
The block shown is a starting point. We machine custom valve blocks and manifolds with your own circuit layout, port count, thread standards, flange pattern and pressure rating — all to drawing.
We sign an NDA before engineering review, restrict drawings to the assigned programming and machining team, and never display or reuse customer geometry. Fixtures and programs built for your block stay dedicated to your program, and surplus or reject parts are scrapped on request.
Changxinda runs a 2008-established plant with 90+ staff, CNC lathes and 4-axis / 5-axis machining centers backed by a dedicated QC lab.
One shop, ten industries, one inspection standard:
- Consumer Electronics Phone / tablet / laptop housings, heat sinks, camera brackets, VR/AR headset structural parts, smart wearable shells
- Automation & Industrial Equipment Automation fixtures, jigs, module frames, transmission sliders, motor mounts, sensor housings, assembly line components
- Semiconductor & Vacuum Equipment Vacuum chambers, vacuum fittings, precision bases for semiconductor equipment, thermal and insulating parts, inspection tooling
- Medical Equipment Surgical instrument bases, medical testing instrument housings, endoscope accessories, medical aesthetic device structural parts (medical-grade aluminum / stainless steel)
- Automotive New-energy motor housings, battery end plates, sensor brackets, headlamp structural parts, modified parts, hydraulic valve blocks
- Aerospace & UAV Aircraft structural parts, drone frames, landing gear accessories, aviation instrument housings (lightweight precision parts)
- Optics & Photonics Optical lens barrels, lens mounts and bases, light source heat sinks, camera module brackets, inspection optical platforms
- Communications 5G heat dissipation cavities, filter parts, signal adapter structural parts, communication equipment housings
- Robotics Robotic arm joint parts, robot bases, reducer housings, AGV structural parts
- Instruments & Meters Testing equipment housings, precision gauge bases, flow meter parts, laboratory equipment accessories
- Cross-drilled channels deburred at every intersection
- Port faces flat and perpendicular to their threads
- ±0.01 mm on port position and face flatness
- 316L stainless steel with heat-number traceability
- Threads checked with plug and ring gauges
- Flange mounting face machined true for even bolt load
- Ultrasonic cleaning and passivation before packing
- Hydrostatic pressure test available on request
- NDA and IP protection on request
- From 1-piece prototypes to scheduled production
| Product Type | Stainless steel fluid valve block with flange mounting base |
|---|---|
| Machining | Turning + turn-mill composite, multi-setup |
| Tolerance | ±0.01 mm on critical features |
| Material | 316L stainless steel |
| Features | Cross-drilled channels, threaded ports, mounting flange |
| Port Threads | BSPP / NPT / metric, per drawing |
| Surface Treatment | Passivation / electropolishing |
| Testing | CMM, thread gauges, hydrostatic test on request |
| MOQ | 1 piece |
Each port is faced flat and square to its own thread from a common datum, so the fitting seats evenly instead of cocking under torque. Threads are gauge-checked and faces inspected before assembly.
Every intersection is deburred from both directions after drilling, then the block is ultrasonically cleaned, so no burr ring is left to tear seals or release swarf into the circuit.
Yes, hydrostatic testing at an agreed multiple of working pressure can be arranged and reported with the batch.
BSPP, BSPT, NPT and metric threads to your drawing, all verified with plug and ring gauges rather than by eye.
Yes, before engineering review. Drawings are limited to the assigned programming and machining team and never reused or displayed.
Prototypes 3–7 days, small batches 7–14 days, mass production 14–30 days depending on circuit complexity.
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