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SKU: 232736
Product Type: Sem-Flex Needles
Vendor: PPG - SEMCO®

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

20 GA
Gauge
1"
Length
0.034"
Inner Diameter
YELLOW
Hub Color
Lock & Slip
Luer Type

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.

💧 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.

🔒 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.

🔩 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.

📏 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.

⚙️ 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.

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
Semco® Dispensing Cartridge
Holds and feeds your adhesive or sealant material into the needle
Sem-Flex Compatible Adapter
Connects the Sem-Flex needle securely to your dispensing cartridge system
⭐ Recommended Accessories
Pneumatic Dispensing Gun
Consistent, hands-free pressure control — ideal for high-volume production environments
Pneumatic Hose
Connects your dispensing gun to an air supply for smooth, uninterrupted operation
Manual Dispensing Gun
Portable, no-air-required option for smaller jobs or fieldwork

Quality You Can Count On

🎯
Consistent Flow Performance

Manufactured to strict quality standards for dimensionally accurate, repeatable results

🔒
Secure Dual Luer Connection

Luer Lock & Slip fitting prevents leaks and ensures safe, reliable operation

🔩
Industrial-Grade Durability

Stainless steel construction built for extended use in demanding environments

🟡
Color-Coded for Speed

Yellow hub for instant 20 GA identification in busy work environments

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.