Luer Fittings And Connectors
Luer Connectors And Tips
A family of molded luer connectors, clamps and tips for fluid lines in infusion, sampling and instrument plumbing.
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Luer Fittings And Connectors
Three Way Stopcock Components
Molded stopcock bodies, handles and caps for three way fluid control on infusion and sampling lines.
Product Overview
What This Component Is
Molded stopcock bodies, handles and caps for three way fluid control on infusion and sampling lines. This is an assembly where two parts have to turn against each other for years of shelf life and still seal, so the tool and the resin have to be treated as one decision.
Key Benefits
- Body and handle molded on tooling from the same shop so the running fit is designed once
- Colour coded handle molded to your standard rather than approximated
- Clean room molding for a component sitting directly in the fluid path
Molded on tooling we cut ourselves in Shenzhen. Certification covers the site doing the work: ISO 9001:2015 and ISO 13485:2016.
Who It Is For
- Infusion set makers
- Sampling device brands
- Instrument builders with fluid handling
Problems It Solves
- Stopcocks that turn stiffly after storage
- Leaks at the plug seat under back pressure
- Handles that crack when a gloved hand applies real torque
Application Scenarios
- Infusion line flow switching
- Sampling and injection access
- Instrument fluid routing
Technical Features
How It Is Engineered
- Running fit between body and plug set in the tool rather than by selection at assembly
- Handle rib sections reviewed for torque without adding sink marks
- Gate location chosen so weld lines avoid the sealing seat
Materials
- Medical grade resin selected against your specification rather than substituted by us
- Customer nominated grades accepted where a device master record already fixes the material
- Colourants and additives confirmed in writing before the first sampling run
Specifications
Documented Figures
| Part Family | Stopcock body, plug and handle |
|---|---|
| Process | Injection molding on in house built tooling |
| Mold Machining Accuracy | 0.002-0.005 mm on ground surfaces |
| Molding Environment | ISO 8 clean room or conventional workshop |
| Quality System | ISO 9001:2015 and ISO 13485:2016 |
| Country Of Manufacture | Shenzhen, China |
Figures above are plant and tooling capabilities recorded on our own site. Part level tolerances are confirmed against your drawing at mold flow review rather than quoted as a blanket number.
Manufacturing Process
- Mold design review
- Steel machining and EDM
- Mold trial and cavity sampling
- Clean room or conventional molding
- In process dimensional check
- Clean room packing
Quality Control
- Cavity by cavity dimensional sampling before a tool is released
- In process checks during the molding run rather than only at the end
- ERP system records the lot, tool and machine behind every shipment
Customization Options
- Cavitation sized to your annual forecast instead of a fixed standard tool
- Colour and resin grade to your specification
- Clean room packing format and labelling agreed before the first shipment
Comparison
Compared With Other Routes
| Sourcing body and handle separately | Two suppliers means two tolerance stacks meeting for the first time on your assembly line. One tool shop designs the fit once. |
|---|---|
| A standard catalogue stopcock | Custom tooling lets the handle shape, colour coding and port layout match your set instead of forcing your set around a stock part. |
Use Guide
How To Handle It
- Confirm turning torque after conditioning, not straight off the machine
- Check the seat seal under the back pressure your line actually sees
- Keep assembled stopcocks bagged until the packing line
Questions Buyers Ask
Questions About Three Way Stopcock Components
Can you mold the body and plug on matched tooling?
Yes, and we prefer to. Holding both cavities in one plant is the only way the running fit can be corrected quickly.
Do you handle two shot or coated tooling?
Our precision mold department builds complex, high precision, two shot and coating molds, so an overmolded handle is within our normal tooling scope.
Can you assemble the stopcock for us?
We mold and clean room pack the components. Final device assembly and release stay with your registered manufacturer unless we agree a specific scope in writing.
Internal Links
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Cases And Guides For This Component
Case Study
Water Tightness Validation On A Container And Closure Pair
A container and a closure can each pass dimensional inspection and still leak together, because the seal is a property of the pair and not of either part alone.
Read The Case →Quote This Component
Send the drawing, the annual volume and the resin your device file specifies. You will get a feasibility review rather than a price with conditions buried in it.