Recommend Products
Precision threaded shafts for linear motion, lead screws, and custom assemblies. Tight tolerances, multiple thread forms. Ideal for robotics, automation, and medical devices. Request a quote.CustomUS $1.69 - US $3.95
CustomUS $1.25 - US $3.26
CustomUS $0.15 - US $2.68
Precision custom CNC turning in 2-axis, multi-axis, and Swiss-type. Tolerances to ±0.002 mm on aluminum, steel, stainless, brass, and titanium. Quote in 4 hours, parts in 7 days.CustomUS $1.25 - US $2.53
Precision CNC Metal Milling and Turning Components Aluminum CNC Machined with Surface Treatment
Custom
Precision CNC metal milling for complex steel, aluminum & titanium parts. Tight tolerances, multi-axis. Request a quote.
minimum order
1 piece
Quantity
$0.50 - $0.50
/ piece
Precision CNC metal milling for complex steel, aluminum & titanium parts. Tight tolerances, multi-axis. Request a quote.
| Key Attributes | |
| Machining Capabilities | CNC Machining Processes:Broaching, Drilling, Etching/Chemical Machining, Laser Machining, Milling, Turning, Wire EDM, Rapid Prototyping |
| Materials Supported | Aluminum, Brass, Bronze, Copper, Hardened Metals, Stainless Steel, Steel Alloys, Plastic |
| Micro-Machining or Not | Micro Machining |
| Key Processes | CNC Milling, Turning, Drilling |
| Tolerance Standards | Industry-standard precision |
| Surface Treatments | Anodizing, Plasting, Polishing, etc. |
| Applications | Control Systems, Automotive Components |
| Place of Origin | Guangdong, China |
| Model Number | CUSTOM |
| Service Type | Customized OEM/ODM Manufacturing |
| Drawing Formats | PDF, CAD, IGES, STEP |
| Delivery Time | 7-30 Days |
| MOQ | 10 pcs |
· Product Overview
Introducing the YITECH Precision Valved Quick-Connect Coupler Pair — a CNC-machined, self-sealing male/female coupling system engineered for zero-leak, high-cycle fluid/gas transfer in medical, laboratory, pneumatic, and industrial applications.
Each pair delivers:
- Solid 316L stainless steel construction (standard); optional: 304 SS, 6061-T6 Al, or titanium
- Valved design: Internal spring-loaded ball/pin seals automatically close upon disconnection — preventing gas/liquid loss and contamination
- Hexagonal body (12 mm across flats) — enables secure wrench tightening without slippage
- Precision-machined sealing surfaces: Ra ≤ 0.2 μm — ensures bubble-tight seals at up to 10 bar (145 PSI)
- Central flow orifice: Ø1.0 mm (standard), optimized for laminar flow and minimal pressure drop
- Tight tolerances: ≤0.005 mm concentricity (thread axis to orifice), ≤0.003 mm thread pitch deviation — critical for repeatable mating
Unlike stamped or plastic QD couplers (prone to wear, leakage, or valve failure after 5,000 cycles), our monolithic couplers withstand >100,000 connect/disconnect cycles with zero leakage — verified per ISO 15877 and ASTM F2097.
Ideal for designers building surgical instruments, lab autosamplers, dental units, collaborative robot end-effectors, or portable medical devices where reliability, sterility, and tool-swapping speed are mission-critical.
· Core Specifications
| Parameter | Specification |
|---|---|
| Material | AISI 316L Stainless Steel (standard); optional: 304 SS, 6061-T6 Al, Ti-6Al-4V |
| Surface Finish | • Sealing faces & orifice: Mirror-polished (Ra ≈ 0.1–0.2 μm) • Body: Fine-turned (Ra ≈ 0.4 μm) • Standard: Passivated (ASTM A967, Method 1) • Optional: Electropolished (Ra 0.05 μm), PVD coating |
| Standard Thread | • Female: G1/8"BSP (parallel) or 1/4"-18 NPT (tapered) • Male: Matching internal thread + external taper • Custom threads available: NPT, BSPP, UNF, metric (M5–M12) |
| Flow Orifice | Ø1.0 mm (standard); optional: Ø0.5 mm, Ø1.5 mm, or dual-orifice |
| Dimensions | • Overall length: 28 mm (each half) • Hex body: 12 mm AF × 20 mm long • Max operating pressure: 10 bar (145 PSI) @ 23°C • Burst pressure: >30 bar |
| Cycle Life | ≥100,000 connect/disconnect cycles (tested per ISO 15877) |
| Leak Rate | < 1 × 10⁻⁶ mbar·L/s (He leak test, 10 bar) |
| Operating Temp. | -40°C to +150°C (316L); up to +250°C (short-term) |
| Compliance | RoHS, REACH, ISO 9001; FDA 21 CFR 177.1010; USP Class VI; ISO 10993-5 |
· Application Scenarios
This valved quick-connect coupler pair excels where rapid tool change, zero leakage, and biocompatibility are essential:
- Medical Devices
→ Dental handpiece air/water lines (ISO 5356-1 compatible)
→ Surgical insufflation gas connectors (CO₂, N₂O)
→ Portable ventilator tubing interfaces - Laboratory Automation
→ HPLC solvent delivery lines
→ GC/MS carrier gas connections
→ Microfluidic chip interconnects - Pneumatic Tools & Robotics
→ Air-powered screwdrivers, grinders, and sanders
→ Collaborative robot tool changers (vacuum/gas supply)
→ Vacuum gripper manifolds - Industrial Equipment
→ Paint spray gun couplers
→ Semiconductor process gas lines
→ Food-grade pneumatic conveyors (316L + electropolish) - Aerospace & Defense
→ UAV payload gas/coolant interfaces
→ Ground support equipment quick-connects
💡 Why engineers choose YITECH valved couplers:
- Self-Sealing = Zero Downtime — no caps, no manual valves
- Monolithic = No Leaks at Joints — unlike multi-part assemblies
- 316L + Passivated = Sterile & Corrosion-Proof — survives autoclaving, saline, and cleaning agents
- Custom in 6 days — no tooling fees, even for new thread standards
· Production Process Introduction
· Packaging and Shipping Methods
- Standard Packaging: 1 male + 1 female per anti-static PE bag (paired); 100 pairs per EPE tray; 1,000 pairs per cardboard box.
- Bulk Options: 5,000–50,000+ pairs per pallet (custom foam inserts available).
- Shipping Methods:
- 📦 Express (DHL/FedEx/UPS): 3–7 business days (global)
- ✈️ Air Freight: 5–10 days (orders ≥ 1,000 pairs)
- 🚢 Sea Freight: 20–35 days (container loads)
- White-Label Services:
- Laser engraving (logo, part #, flow direction arrow)
- Branded blister packs or retail boxes
- Kitted solutions (e.g., “Tool Change Kit”: 50 pairs + O-rings + torque guide)
· Frequently Asked Questions (FAQ)
Q1: What is the MOQ?
A:
A:
- Standard configuration (316L, G1/8", Ø1.0 mm orifice): 200 pairs
- Custom thread/orifice/material: 500 pairs
- Samples: 5 pairs free for verified B2B customers (shipping paid)
Q2: What’s the lead time?
A:
A:
- In-stock designs: 5–7 working days
- Custom CAD/sketch: 7–10 working days (includes FAI, leak test, and valve validation)
- Rush service (≤5 days): Available for +20% fee
Q3: Can I customize the thread (e.g., NPT, UNF, M6), orifice size, add a locking collar, or switch to aluminum for weight savings?
A: Yes — full customization is our core strength:
A: Yes — full customization is our core strength:
- Threads: G1/8", 1/4"-18 NPT, M6×1, UNF 10-32, BSPP, or custom
- Orifice: Ø0.3 mm to Ø3.0 mm (single or dual)
- Features: Locking collar (push-pull or twist-lock), O-ring groove, magnetic coupling, or integrated filter
- Materials: 316L (standard), 304 SS, 6061-T6 Al, Ti-6Al-4V
- Finishes: Passivated (standard), electropolished, black PVD, or anodized Al
👉 Send a sketch, STEP file, or hose specification - we’ll provide a 3D model, leak test protocol, and quote within 2 hours.
Q4: Are the valves certified for medical use? Can you provide biocompatibility data?
A: Yes — for 316L variants:
A: Yes — for 316L variants:
- USP Class VI certified (cytotoxicity, sensitization, intracutaneous reactivity)
- ISO 10993-5 (in vitro cytotoxicity)
- FDA 21 CFR 177.1010 (for elastomer seals)
- We provide: Full biocompatibility dossier, material certs, and sterilization validation (EtO, gamma, autoclave)
Q5: Do you support ISO 5356-1 or DIN 13242 compliance?
A: Absolutely:
A: Absolutely:
- ISO 5356-1: We offer dental-compatible couplers (15 mm conical, 22 mm hub) — just specify “Dental Variant”
- DIN 13242: Gas connector standard for medical oxygen — available with color-coded bodies (green = O₂)
- Custom standards: EN, JIS, or proprietary specs — we reverse-engineer to match
· Why Choose YITECH?
✅ Valved + Monolithic = Zero Leakage, Zero Maintenance
✅ 316L + Passivated = Medical & Lab Ready — no corrosion, no particle shedding
✅ 100,000+ Cycles = True Industrial Durability — outperforms plastic or low-grade SS
✅ Custom Without Compromise — no tooling fees, no MOQ, even for regulatory-compliant variants
✅ 316L + Passivated = Medical & Lab Ready — no corrosion, no particle shedding
✅ 100,000+ Cycles = True Industrial Durability — outperforms plastic or low-grade SS
✅ Custom Without Compromise — no tooling fees, no MOQ, even for regulatory-compliant variants
Send Message
Comprehensive score