Product Name
Nordson Ratio-Pak Piston (Non-Vented) / HDPE / 150ml - 7660610
Brief Description
This Nordson Ratio-Pak Piston is a precision-molded, non-vented component made from High-Density Polyethylene (HDPE), specifically designed for use within Nordson EFD Ratio-Pak dual cartridge dispensing systems. It ensures clean, secure, and consistent dispensing of two-part (2K) materials by creating an effective seal within the cartridge.
Popular Applications & Uses
- Dispensing two-part adhesives and sealants- Applying potting compounds for electronic components- Packaging and dispensing various coatings and foams- Industrial fluid dispensing requiring precise control and minimal waste- Applications where air tunneling in viscous fluids needs to be prevented- Ensuring consistent and repeatable fluid deposits in manufacturing processes
Industries that Commonly Use It
- General Manufacturing for assembly and bonding processes- Chemical Industry for packaging and dispensing various compounds- Automotive Service/Repair for adhesives and sealants- Construction/Building Services for sealants, adhesives, and coatings- Aerospace/Defense for high-performance bonding and potting- LED/Electronics for potting, encapsulation, and bonding electronic components- Medical Device/Prosthetics for precise application of biocompatible materials- Packaging Services or Contractor involved in 2K material packaging- Metal Fabrication and Plastic Fabrication for bonding and sealing applications- Cabinet & Woodworking and Furniture industries for adhesive applications- Distributers & Resellers who supply dispensing components to various industrial sectors
Special and Unique Features
- **Non-Vented Design:** Engineered for specific dispensing requirements where a non-vented seal is optimal, preventing air from passing through the piston.- **HDPE Material:** Constructed from High-Density Polyethylene, offering durability and chemical compatibility.- **Precision Molding:** Ensures a perfect fit within Nordson EFD cartridges, leading to uniform dispensing force and accurate, consistent fluid deposits.- **Waste Reduction:** Precision wiping edges clean the syringe interior, minimizing material waste and residue.- **Air Entrapment Prevention:** Designed to prevent air blow-by and entrapment, which can cause piston bounce and inconsistent dispensing.- **Compatibility:** Part of the Nordson Ratio-Pak configurable multi-ratio system, allowing for versatile combinations of cartridges and ratios (1:1 up to 25:1).- **Silicone-Free Production:** Manufactured in certified silicone-free facilities, crucial for sensitive applications.
Key Properties
- **Material:** High-Density Polyethylene (HDPE)- **Volume:** 150ml cartridge capacity compatibility- **Type:** Non-Vented Piston- **Function:** Creates a consistent seal and pressure for fluid dispensing- **Compatibility:** Designed for Nordson EFD Ratio-Pak dual cartridge systems- **Operating Pressure:** Rated to 100 psi (6.9 bar)- **Operating Temperature:** Rated to 100° F (38° C)
Surface Compatibility
This piston is designed to work within Nordson EFD Ratio-Pak cartridges, which are available in various materials like polypropylene (PP) and nylon, allowing for chemical compatibility with a wide range of two-part materials.
Known backups / known substitutes
- **Vented Pistons:** Nordson EFD offers self-vented pistons (e.g., MDPE self-vented 150ml piston rear seal 7660878) for applications where venting is required.- **Other Nordson EFD Piston Styles:** Depending on fluid viscosity and application, other Optimum series pistons like White SmoothFlow (general purpose), Red SmoothFlow (tight fit for mechanical dispensing), Beige SmoothFlow (loose fit for air-entrapped fluids), Orange Flatwall (looser fit for stringy fluids), Blue LV Barrier (for cyanoacrylates and very low viscosity fluids), or Clear Flex (for viscous/particle-filled materials) could be considered.- **MDPE Non-Vented Pistons:** Nordson also offers non-vented pistons in Medium-Density Polyethylene (MDPE) for similar applications, such as the 150ml MDPE non-vented piston (7660609) or 300ml MDPE non-vented piston (7660653).
Comparison Note
The Nordson Ratio-Pak Piston (Non-Vented) / HDPE / 150ml - 7660610 is specifically engineered for precise, clean, and secure dispensing of two-part materials within the Nordson Ratio-Pak dual cartridge system. Its non-vented HDPE construction distinguishes it from vented or MDPE alternatives, making it suitable for applications where a tight, non-breathing seal is critical to prevent air entrapment and ensure consistent material flow. While other piston types exist for varying fluid viscosities and dispensing mechanisms, this particular piston is optimized for the 150ml Ratio-Pak cartridge and applications demanding a non-vented solution.
