2, 3, and 4-port IV manifold stopcocks — also known as infusion port manifolds or stopcock manifolds — in medical-grade polycarbonate. Custom port spacing, handle colors, and distal end connections. ICU, OR, and interventional radiology applications.
| Configurations | 2-Port, 3-Port, 4-Port |
| Material | Medical-grade PC / ABS |
| Connection | Luer Lock (standard) |
| Handle Colors | Blue, White, Custom |
| Distal End | Male Luer / Female Luer |
| Rail Type | Rigid or flexible manifold |
| Integrated Features | Check valve, flush port options |
| Sterilization | EO compatible |
| MOQ | 500 pcs (negotiable) |
| Sample Lead Time | 20–30 business days |
| OEM Branding | Available |
| NDA | Available before design review |
NDA available · Samples accepted · 48h reply
What Is an IV Manifold Stopcock?
An IV manifold stopcock — also called an infusion port manifold, stopcock manifold, or multi-stopcock bar — combines several individual stopcock ports on a single body so that multiple infusion lines can share one catheter access point. Instead of stacking separate stopcocks at the bedside, a manifold keeps all the lines organized, reduces dead space and connection points, and makes simultaneous multi-drug delivery easier to manage.
EKINSUN manufactures 2-, 3-, and 4-port IV manifolds by medical injection molding — as standard, OEM-branded, or fully custom designs built from your drawing or sample.
Clinical Applications
- ICU — simultaneous infusion of sedatives, vasopressors, antibiotics, and nutrition
- Operating room — anesthesia and fluid management during surgery
- Interventional radiology — contrast and drug delivery during procedures
- Oncology — multi-drug chemotherapy administration
Customization & OEM Options
- 2-, 3-, 4-port and custom port counts
- Rigid or flexible manifold rail; custom port spacing
- Integrated check-valve and flush-port options
- Color-coded handles and molded-in OEM branding
3-Port & Multi-Port IV Manifold — Port Configurations & the Stopcock Bar
The 3-port IV manifold stopcock is the most common hospital configuration. Three independent stopcocks on a single manifold body let a nurse run sedation, vasopressor, and antibiotic simultaneously from one catheter access point — no need to stack individual stopcocks. Our 3-port manifold ships in standard luer-lock configuration with a medical-grade PC body and blue or white handle options.
The 4-port multi-port stopcock manifold suits complex ICU protocols — sepsis, trauma, or any situation requiring four simultaneous agents. We also manufacture a 2-port configuration for simpler dual-line setups, and can tool custom port counts on request.
Terminology note: purchasing teams, clinicians, and international buyers use different names for the same device. Medical stopcock bar is the term common in European and anesthesia contexts; infusion port manifold appears in US ICU procurement specs; stopcock manifold and IV manifold are interchangeable. Whether your RFQ says "stopcock bar," "infusion port manifold supplier," or "multi-port stopcock manufacturer," we're manufacturing the same product.
ISO 13485–Certified IV Manifold Supplier in Guangdong, China
EKINSUN's Guangdong factory is ISO 13485 certified — the quality management standard specific to medical device manufacturing. From resin incoming inspection to finished product release, every IV manifold and stopcock manifold goes through a documented QMS with full material traceability. For customers navigating FDA 510(k) or CE marking, we supply the complete documentation package: ISO certificate, material COAs for all medical-grade resins, dimensional inspection reports, and batch manufacturing records structured to match your regulatory submission.
As a direct factory in Guangdong, we are not a trading company. When you source an IV manifold from China through a distributor or broker, you're adding a margin and a communication layer. Working directly with EKINSUN gives you the engineer who designed the mold, faster sample iterations, and a unit price that reflects actual manufacturing cost.
The Numbers Behind a Manifold Specification
A manifold drawing is mostly geometry, but four numbers decide whether the device works at the bedside, and they are worth stating explicitly in any OEM enquiry:
| Specification item | The governing number | Why it matters |
|---|---|---|
| Luer connector geometry | ISO 80369-7 — the 6 % taper | One standard defines every luer fitting worldwide; it replaced ISO 594, and gauging to it is what makes your manifold mate with every giving set on the market |
| Working pressure | Gravity infusion sits near 0.1 bar; syringe drivers reach a few bar; CT contrast injection runs to ≈22 bar (325 psi) | A gravity-rated body and a power-injection body are different parts — wall sections, bonding and handle retention all change; see our contrast injection stopcock for the high-pressure branch |
| Handle throw | 90° between open and closed, off position self-evident | A nurse reads the handle at a glance across the bar; ambiguous intermediate positions are a use-error, not a feature |
| Priming / dead space | A fraction of a millilitre per port — the drawing value is molded and verified, not approximated | Residual drug in the manifold reaches the patient as a bolus when the next line flushes; low-dead-space geometry is a clinical requirement in neonatal and high-alert infusion |
Materials follow the same logic as the rest of the IV island: a polycarbonate body for clarity and bonding, with a lipid-resistant PC copolymer whenever TPN or propofol lines are in the clinical picture, and polyethylene or ABS handles colored for line identification. Sterilization route decides the grade — the full matrix is on our medical plastics guide: EtO is the default for PC assemblies, and gamma calls for a stabilized grade unless a yellow tint is acceptable.
The honest boundary, stated plainly: a standard 3-gang luer-lock manifold is a catalogue item from the large infusion brands, stocked and batch-released — if the standard part fits your set, buy it; OEM molding earns its cost where the catalogue stops: your port count and spacing, integrated check valves, low-dead-space internals, your branding and your pouch label, on your device master record.
Custom Stopcock Manifold — OEM Ordering Process
A custom IV manifold stopcock order at EKINSUN follows four stages:
- NDA & Brief — We sign an NDA before reviewing any proprietary drawing or sample. Share your port count, spacing, distal connection type, material preference, and OEM branding requirements.
- Tooling & DFM — Our engineers review your spec for injection molding feasibility and submit a DFM report. Mold tooling typically takes 15–20 business days.
- Samples — First samples ship 20–30 business days from mold approval. Sample cost is credited against your first production order.
- Production — Once samples are approved, production runs in 45–60 days. MOQ starts at 500 pcs; the same mold scales to hundreds of thousands without retooling.
Why EKINSUN for IV Manifold OEM?
Most buyers who come to us have run into the same issue: a previous supplier held tolerance on the body but not on the Luer lock interface, or couldn't do color-coded handles without a 50,000-piece minimum. Our medical parts run on a dedicated ISO 13485-certified production line at our medical molding partner — not a general factory running medical orders alongside automotive plastic clips.
NDA before design review, every time. We work from your drawing, your sample, or just a clinical spec — port count, spacing, distal connection type, check valve, handle color, and molded-in branding are all handled in a single mold tooling cycle. Samples typically ship in 20–30 business days; production in 45–60 days from approval. MOQ starts at 500 pcs and the same mold runs to hundreds of thousands without retooling.
Frequently Asked Questions
It lets multiple infusion lines share one catheter access point — so a bedside nurse can run sedatives, vasopressors, and antibiotics simultaneously through a single IV site rather than stacking individual stopcocks. Standard equipment in ICUs, operating rooms, and interventional radiology suites.
We manufacture 2-, 3-, and 4-port configurations as standard, and can tool custom port counts on request. Port spacing, stopcock style, handle color, and connection type are all specifiable — send a drawing or a sample and we'll quote from there.
Same device, different names. IV manifold, infusion port manifold, stopcock manifold, and multi-stopcock bar all refer to the same thing: a single body that consolidates multiple stopcock ports so several infusion lines share one catheter access point. The naming varies by country and hospital system.
Brand name, product code, and logo can go directly into the mold (molded-in text) or be applied by pad printing. We sign an NDA before reviewing any proprietary design files — standard practice for all our OEM customers.
The 3-port is the most common ICU setup — it covers most multi-drug infusion scenarios without adding unnecessary bulk. The 2-port is used where only two lines need to share access. The 4-port comes in for complex cases: sepsis protocols, trauma, or any situation where four agents need to run simultaneously. All configurations use individual stopcocks per port for independent flow control.
Unit price is driven primarily by port count and order volume. At production quantities the per-piece cost drops significantly, with unit prices typically falling in the $0.30–$5.00 range depending on port count and configuration. Send your spec and target quantity and we'll give you a real number within 48 hours.
Always. We don't expect customers to commit to production without holding a sample first. Sample lead time is 20–30 business days from drawing approval. Sample cost is credited against your first production order. For custom designs, NDA comes before we share any tooling or drawing files.
Worldwide — most of our medical OEM volume goes to brands and distributors in the US, EU, Southeast Asia, and the Middle East. We can ship EXW, FOB Shenzhen, or CIF depending on your logistics setup, or hand off directly to your freight forwarder.
Our medical molding partner is ISO 13485 certified. Standard documentation includes the ISO certificate, material COAs for all medical-grade resins, dimensional inspection reports, and manufacturing batch records. If you're going through CE, FDA, or another regulatory pathway, let us know early — we can align our documentation package to what your submission requires.
Most IV manifold and stopcock manifold brands in Western markets are already manufactured in China — the question is whether you're buying from a factory or through a trading layer. Working directly with EKINSUN — not a trading layer — gives you a direct line to the engineer who manages your mold, faster sample turnarounds, and a unit price that reflects actual manufacturing cost without a middleman margin. Production runs at our ISO 13485-certified injection molding partner in Guangdong. We supply OEM customers in the US, EU, and Southeast Asia and have exported medical-grade plastic components since 2012.
A custom stopcock manifold means the manifold is designed or modified to your specification rather than ordered off-the-shelf. At EKINSUN, customization covers: port count (2, 3, 4, or more), port spacing, distal end connection (male luer, female luer, specific fittings), handle color (color-coded for clinical use), integrated features (check valve, flush port), material selection, and OEM branding (molded-in text or pad printing). You can start from a drawing, from a sample you want to replicate, or from a written clinical spec — our engineers will handle DFM and tooling from there.
