Parker 2‑021 2‑022 2‑023 2‑024 2‑025 Precision O‑Ring Collection 1.78mm Cross‑Section NBR FKM EPDM VMQ Broad Medium Compatibility For Refrigeration Equipment Sealing Assembly

Product Description:

Parker’s AS568 2-Series O-Rings, which range in sizes from 2-001 to 2-050, are miniature sealing rings crafted with precision molding techniques. These elastomeric O-rings feature a consistent cross-section measuring 0.070 inches (1.78 mm), making them ideal for applications requiring small diameter seals. Manufactured to comply with AS568A dimensional standards, the 2-Series O-rings come in four different high-performance polymer materials: NBR (nitrile), FKM (fluorocarbon), EPDM (ethylene propylene), and VMQ (silicone). Each material is selected to meet various fluid compatibility, temperature ranges, and environmental conditions.

Designed specifically for sealing needs in confined spaces, the 2-Series is suited for low to medium pressure applications that are either static or involve light dynamic movements. The internal diameters span from as small as 0.029 inches (0.74 mm) for the 2-001 size up to 2.989 inches (75.92 mm) for the 2-050 size. This size range represents the smallest standard AS568 sizes, making these O-rings the preferred option for devices such as sensors, miniature valves, small fittings, analytical instruments, and compact pneumatic or hydraulic components.

Depending on the specific application requirements, you can select from different compounds: NBR offers resistance to oils, FKM provides superior chemical and temperature stability, EPDM is excellent for hot water, steam, and weather resistance, and VMQ delivers broad temperature adaptability combined with physiological inertness. The Parker 2-Series provides a reliable, standardized sealing solution that is readily available worldwide with consistent compound quality, ensuring dependable performance across a variety of demanding environments.

Features:

Technical Parameters:

Applications:

Precision instruments and sensors require reliable sealing solutions for components such as small ports, transducer housings, and enclosures of analytical devices. These seals ensure the accuracy and durability of sensitive equipment.

In the field of miniature pneumatic and hydraulic systems, compact cylinders, small-bore actuators, valve bodies, and fitting seals demand precise and efficient sealing materials that can withstand dynamic pressures and movements.

The automotive and transportation industries utilize specialized seals for fuel system components, small fluid connectors, sensor seals, and brake system sub-assemblies. Notably, EPDM materials are commonly selected for their compatibility with glycol-based fluids in these applications.

Medical and life-science devices often employ VMQ-grade materials that comply with FDA and USP Class VI standards. These are ideal for fluid-path seals in diagnostic and laboratory equipment, ensuring safety and biocompatibility.

For food and beverage processing, EPDM and VMQ compounds are produced with certifications that meet the requirements for potable water and direct food-contact applications, maintaining hygiene and regulatory compliance.

In semiconductor and high-purity systems, FKM and specially cleaned VMQ options are chosen to handle chemically aggressive and high-temperature environments within miniature setups, offering exceptional chemical resistance and purity.

General industrial sealing needs cover a variety of components such as gearboxes, pumps, small flanges, and end-caps, especially where installation space is limited and adherence to the AS568 O-ring standard is essential.

Additionally, rotary seal auxiliary elements utilize small size 2-series O-rings as energizers or supplementary sealing elements in certain PTFE rotary seal assemblies, enhancing overall sealing performance in demanding rotational applications.

Customization:

Our Pulse Valve Diaphragm, branded by Parker and model number 2-001, offers exceptional customization services to meet your specific needs. Manufactured in China and certified with CE, this product ensures high quality and reliability for your applications.

We support a minimum order quantity of just 1 piece, with prices available through negotiation to provide you with the best value. Each diaphragm is carefully packaged in a carton to ensure safe delivery.

With a supply ability of 5000 pieces per month, we guarantee prompt delivery within 1-7 work days after payment. Payment terms include T/T, Western Union, and Paypal for your convenience.

The Pulse Valve Diaphragm is made from premium materials such as NBR, FKM, EPDM, and VMQ, providing excellent durability and performance. It features a temperature range of -55°C to +200°C (up to +232°C) for VMQ material, and -25°C to +200°C for FKM, making it suitable for diverse operating conditions.

The inside diameter ranges from 0.029 to 5.239 inches, with a cross-section of 0.040 inches, allowing compatibility with various systems. This product is ideal for use with QBY diaphragm pump applications, ensuring optimal performance and longevity.

Choose our customizable Pulse Valve Diaphragm for your QBY diaphragm pump needs, and experience superior quality and service tailored to your requirements.

Support and Services:

Our Pulse Valve Diaphragm product is supported by a dedicated team of technical experts committed to ensuring optimal performance and longevity. We offer comprehensive technical support including installation guidance, troubleshooting assistance, and maintenance recommendations to help you achieve reliable operation in your applications.

Our services include detailed product documentation, including specifications, operation manuals, and replacement procedures to facilitate easy understanding and handling of the diaphragm. We also provide training sessions and webinars to help users and technicians gain in-depth knowledge about the product’s features and best practices.

For maintenance and repairs, we recommend regular inspection of the diaphragm for signs of wear or damage, and timely replacement to prevent operational disruptions. Our support team can assist in diagnosing issues and advising on the appropriate replacement parts and procedures.

We are committed to customer satisfaction and continuous improvement, offering post-sales support to address any inquiries or technical challenges you may encounter. Our goal is to ensure that your Pulse Valve Diaphragm operates efficiently and reliably within your system.