Medical-grade polycarbonate 3-way stopcocks with Luer lock or Luer slip connections. Standard and high-pressure versions. Custom handle colors, port orientations, and OEM branding.
| Material | Medical-grade Polycarbonate (PC) |
| Handle Material | ABS (blue standard, custom colors available) |
| Connection | Luer Lock or Luer Slip |
| Thread Standard | ISO 594 / ISO 80369 |
| Versions | Standard flow / High-pressure / With extension tube |
| Colors | Blue, White, Red, Custom RAL/Pantone |
| Sterilization | EO compatible |
| Biocompatibility | USP Class VI / ISO 10993 |
| MOQ | 500 pcs (negotiable) |
| Sample Lead Time | 15–25 business days |
| Production Lead Time | 25–40 business days |
| OEM Branding | Pad print or molded-in |
| NDA | Available before design review |
NDA available · Samples accepted · 48h reply
What Is a Custom 3-Way Stopcock?
A 3-way stopcock is a small valve with three ports and a rotating handle that lets clinicians direct, stop, or combine fluid flow between an IV line, a syringe, and a patient access point — without disconnecting any tubing. The handle position determines which two of the three ports are open, which makes it one of the most widely used disposable components in infusion therapy, anesthesia, and interventional radiology.
EKINSUN manufactures 3-way stopcocks by medical-grade injection molding to your specification — as a standard catalog part, a branded OEM version, or a fully custom design reverse-engineered from your sample.
Clinical Applications
- IV therapy — switching between infusion, flushing, and medication push on a single line
- Anesthesia — controlled drug delivery during surgery
- Contrast injection — high-pressure versions for CT, MRI, and angiography
- Arterial & pressure monitoring — sampling and zeroing transducer lines
- Blood sampling — drawing samples without breaking the sterile circuit
Customization & OEM Options
- Luer lock or Luer slip connections (ISO 80369 / ISO 594)
- Standard-flow or high-pressure, power-injector-rated bodies
- Handle color coding — blue, white, red, or any RAL/Pantone
- 2-way, 3-way, and 4-way variants, with or without extension tubing
- Molded-in logo or pad-printed branding for OEM customers
Materials & Compliance
Standard bodies are molded in clear medical-grade polycarbonate (PC) for visual flow confirmation, with ABS handles. Materials are available USP Class VI / ISO 10993 tested, and parts are EO-sterilization compatible. We sign an NDA before reviewing proprietary designs and can supply material and biocompatibility documentation for your regulatory file.
Frequently Asked Questions
Yes. We manufacture stopcocks with any handle color — standard blue, white, red, or any custom RAL/Pantone color to match your clinical coding system. Color is specified during the design phase.
Luer lock has a threaded collar that locks onto compatible fittings — essential for high-pressure or safety-critical connections. Luer slip relies on friction. For contrast injection and arterial lines, Luer lock is recommended. See our guide: Luer Lock vs Luer Slip.
Yes. Our high-pressure versions are manufactured from reinforced medical-grade PC and rated for power injector pressures used in CT, MRI, and angiography. Clear body for visual air-free confirmation. See our Contrast Injection Stopcock page.
Yes. Send us a physical sample and we reverse-engineer it — CMM measurement, CAD model, approval, then production. NDA signed before receiving samples.