PPG Semco® 20 Gauge Sem-Flex Dispensing Needle — Yellow Hub | Luer Lock & Slip | 1" Length
Precision-engineered. Sem-Flex compatible. Trusted across aerospace, electronics, and medical device applications.
The PPG Semco® 20 GA Sem-Flex Needle is precision-engineered for accurate, controlled material application — delivering consistent fine-gauge flow rates, secure Luer Lock & Luer Slip connections, and industrial-grade stainless steel durability across the most demanding professional dispensing environments.
⚠️ Safety Notice: Always follow applicable safety protocols and manufacturer guidelines when using dispensing equipment. Inspect needles before each use and replace bent or clogged needles immediately.
At a Glance
Technical Specifications
| Specification |
Detail |
| Brand |
PPG – Semco® |
| Needle Type |
Sem-Flex |
| Gauge |
20 GA |
| Length |
1 inch (25.4 mm) |
| Outer Diameter |
0.046" (1.17 mm) |
| Inner Diameter |
0.034" (0.86 mm) |
| Hub Color |
YELLOW |
| Connection Type |
Luer Lock & Luer Slip |
| Material |
Stainless Steel |
| Compatible With |
Semco® Cartridge Systems & Standard Dispensing Equipment |
Key Features & Benefits
🟡 Yellow Color-Coded Hub
Instantly identify the correct gauge in busy work environments — the yellow hub is the universal color code for 20 GA dispensing needles, eliminating mix-ups and saving valuable time.
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💧 Ultra-Fine Precision Flow Control
The ultra-narrow 0.034" inner diameter delivers highly controlled, repeatable material flow — purpose-built for the most demanding fine-detail dispensing applications requiring maximum precision.
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🔒 Dual Luer Lock & Slip Connection
Luer Lock & Luer Slip compatibility provides a secure, leak-free fit with standard dispensing equipment — preventing slippage and ensuring safe, uninterrupted operation.
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🔩 Industrial-Grade Stainless Steel
Robust stainless steel construction resists corrosion and chemical exposure — guaranteeing longevity, consistent performance, and extended use in demanding industrial and aerospace environments.
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📏 1" Length for Precise Reach
The 1-inch length strikes the ideal balance between reach and pressure control — suitable for recessed areas and tight-tolerance assemblies while maintaining optimal fine-gauge flow performance.
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⚙️ Manual & Automated Compatible
Optimized for both manual and automated dispensing systems — delivering reliable, consistent performance across hand-operated guns and high-volume production environments alike.
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Common Applications
Aerospace Assembly Electronics & PCB Medical Device Manufacturing Manufacturing Assembly Precision Adhesive Dispensing Sealant Application MRO Operations Ultra-Fine Detail Engineering
Complete Your Dispensing Setup
⚠️ Required Accessories
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Semco® Dispensing Cartridge
Holds and feeds your adhesive or sealant material into the needle
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Sem-Flex Compatible Adapter
Connects the Sem-Flex needle securely to your dispensing cartridge system
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⭐ Recommended Accessories
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Pneumatic Dispensing Gun
Consistent, hands-free pressure control — ideal for high-volume production environments
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Pneumatic Hose
Connects your dispensing gun to an air supply for smooth, uninterrupted operation
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Manual Dispensing Gun
Portable, no-air-required option for smaller jobs or fieldwork
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Quality You Can Count On
🎯
Consistent Flow Performance
Manufactured to strict quality standards for dimensionally accurate, repeatable results
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🔒
Secure Dual Luer Connection
Luer Lock & Slip fitting prevents leaks and ensures safe, reliable operation
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🔩
Industrial-Grade Durability
Stainless steel construction built for extended use in demanding environments
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🟡
Color-Coded for Speed
Yellow hub for instant 20 GA identification in busy work environments
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Tips for Best Results
✓ Use the shortest needle suitable for your job — shorter length reduces pressure drop and improves fine-gauge flow control
✓ Always cap needles when not in use to prevent tip clogging — especially important with fine-gauge needles
✓ Inspect before each use — replace bent or clogged needles immediately to maintain dispensing accuracy
✓ 20 GA is best suited for low viscosity adhesives and sealants requiring ultra-fine, highly controlled dispensing
✓ Confirm Luer Lock or Luer Slip compatibility with your dispensing equipment before use
PPG Semco® 20 GA Yellow Sem-Flex Needle — Ultra-fine precision dispensing you can count on, every time.
Available individually or in bulk. Compatible with Semco® cartridge systems and standard Luer dispensing equipment.
⚠️ Safety & Compliance Notice: Always follow applicable safety protocols and manufacturer guidelines when using dispensing equipment. Inspect needles before each use and replace bent or clogged needles immediately.
Semco® is a registered trademark of PPG Industries. Compatible with Semco® cartridge systems and standard Luer dispensing equipment. Specifications subject to change without notice.
