PVA Pv-21R-1X, R Series Needle, Plastic Hub W- Ss Canula, 1" Length Canula
PVA PV-21R-1X — 21 Gauge x 1.0" R-Series Dispense Needle, Box of 50
PVA's R-Series dispense needles are engineered for precision fluid dispensing in electronics assembly, PCB manufacturing, and industrial automation. The PV-21R-1X features a double helix threaded polypropylene luer lock hub — color-coded purple for 21 gauge — with a bonded stainless steel cannula that is blunt-end cut and polished for superior dispensing control and consistent flow.
Key Specifications
- Part Number: PV-21R-1X
- Series: R-Series (Plastic Hub / Stainless Steel Cannula)
- Gauge: 21
- Hub Color: Purple (color-coded by gauge)
- Inside Diameter: 0.0201" (0.51 mm)
- Outside Diameter: 0.0323" (0.82 mm)
- Cannula Length: 1.0"
- Hub Material: Double helix threaded polypropylene luer lock
- Cannula Material: Bonded stainless steel, blunt end, cut and polished
- Quantity: Box of 50
Applications
- Solder paste and flux dispensing
- Adhesive, epoxy, and UV coating application
- Conformal coating dispensing
- General precision fluid dispensing in PCB and electronics assembly
- Compatible with standard luer lock syringe barrels and pneumatic dispensing systems
Frequently Asked Questions
What fluid viscosity is the 21 gauge needle best suited for?
The 21 gauge (0.51mm ID) is well suited for medium-viscosity fluids such as solder paste, light adhesives, and flux. For thicker materials like high-viscosity epoxies, consider a lower gauge (larger ID) needle such as 18 or 20 gauge.
Is the PV-21R-1X compatible with standard luer lock syringes?
Yes. The double helix threaded polypropylene hub is designed for a secure, leak-free connection with standard luer lock syringe barrels and pneumatic dispensing systems.
How do I identify the gauge by color?
PVA R-Series needles are color-coded by gauge. The 21 gauge needle has a purple hub. Other gauges use different hub colors — refer to the PVA R-Series color chart for the full gauge-to-color mapping.
Are these needles disposable?
Yes. PVA R-Series dispense needles are designed as disposable, single-use tips to maintain dispensing accuracy and prevent cross-contamination between fluid types.
What other canula lengths are available for the 21 gauge?
The 21 gauge R-Series is available in three canula lengths: 0.5" (PV-21R-0.5X), 1.0" (PV-21R-1X), and 1.5" (PV-21R-1.5X). All are sold in boxes of 50.
