Product Description:
The Parker 2-series O-rings are precision-engineered elastomeric seals that adhere to the AS568A dimensional standards. This series includes dash numbers ranging from 2-201 to 2-284, all maintaining a consistent cross-section thickness of 3.53 mm (0.139"). The internal diameters vary widely, starting at approximately 7.59 mm for the 2-201 size and extending up to 456.06 mm for the 2-284 size. This size variety allows these O-rings to accommodate a diverse range of applications, from small hydraulic fittings to large industrial housings.
To address different operational needs involving fluids and temperature, these O-rings are available in three distinct elastomer families. The first is NBR (Nitrile), which is suitable for general-purpose use with petroleum-based fluids and hydraulic systems. The second option is FKM (Fluoroelastomer), designed to withstand exposure to aggressive chemicals and elevated temperatures. Lastly, EPDM (Ethylene Propylene) is ideal for applications involving water, steam, and polar solvents. Each material type offers dependable compression set resistance and ensures sealing effectiveness in both static and dynamic gland configurations.
Features:
AS568A Dimensional Compliance
These components are molded to meet the AS568A standard dash-number tolerances, ensuring drop-in interchangeability. This compliance guarantees that replacements or upgrades can be made effortlessly without the need for custom modifications.
Uniform Cross-Section Dimensions
The entire series from 2-201 to 2-284 maintains a uniform cross-section of 3.53 mm with a tolerance of ±0.10 mm. This consistent cord size simplifies gland design and aids in efficient spare-parts management.
Material Options and Their Applications
NBR (Nitrile) is a general-purpose material known for its excellent resistance to petroleum oils, fuels, and hydraulic fluids. It typically performs well within a temperature range of approximately -34°C to +100°C (-30°F to +212°F).
FKM (Fluoroelastomer) offers superior chemical resistance against aggressive substances such as acids and fuels. Its standard operational temperature range spans approximately -25°C to +200°C (-13°F to +392°F).
EPDM (Ethylene Propylene) is preferred for applications involving hot water, steam, and polar solvents. It usually functions efficiently between approximately -50°C and +150°C (-58°F to +302°F).
Extensive Size Range
The product line covers a broad spectrum of sizes with 84 dash numbers, ranging from 2-201 to 2-284. This range accommodates inner diameters approximately from 7.59 mm up to 456.06 mm, providing flexible solutions for diverse needs.
Technical Parameters:
| Typical Parker Compound |
N0674-70, V0747-75, E3609-70 |
| Cross-Section |
3.53 mm |
| Material |
NBR, FKM, EPDM |
| Inside Diameter |
4.34 mm to 456.06 mm |
| Hardness (Shore A) |
70, 75 |
| Tolerance |
±0.10 mm, ±0.15 mm |
This Pulse Valve Diaphragm is specially designed for QBY diaphragm pump applications, ensuring reliable performance and durability. The QBY diaphragm pump benefits from materials and specifications optimized for extended service life. Choose this diaphragm to enhance the efficiency of your QBY diaphragm pump systems.
Applications:
In hydraulic and pneumatic systems, NBR O-rings play a crucial role in ensuring reliable sealing. They are commonly used for cylinder seals, valve bodies, and connections within fluid lines, providing excellent resistance to oils and hydraulic fluids.
For chemical processing applications, FKM O-rings are the preferred choice. These O-rings are designed to withstand harsh environments and aggressive media, making them ideal for pump housings, reactor seals, and various transfer lines that handle corrosive substances.
When it comes to water and steam systems, EPDM O-rings are extensively utilized. Their exceptional resistance to heat and steam makes them suitable for boiler fittings, hot water valves, and sanitary process lines, ensuring safe and efficient operation.
In general industrial assembly, AS568 2-series O-rings serve as standard sealing solutions. They are widely applied in gearboxes, actuators, flanges, and other standard gland sealing applications, providing reliable performance across various industrial equipment.
Support and Services:
Our Pulse Valve Diaphragm product is designed to provide reliable and efficient performance in demanding industrial applications. For technical support, our team of experts is available to assist with installation guidance, troubleshooting, and maintenance tips to ensure optimal operation of your pulse valve diaphragm.
We offer comprehensive services including product inspections, replacement part recommendations, and custom solutions to meet specific application requirements. Regular maintenance and timely replacement of the diaphragm are crucial for maintaining system efficiency and preventing downtime.
For detailed technical documentation, installation manuals, and troubleshooting guides, please refer to the product resources provided with your purchase. Our commitment is to deliver high-quality support and services to maximize the lifespan and performance of your pulse valve diaphragm.
Packing and Shipping:
The Pulse Valve Diaphragm is carefully packaged to ensure maximum protection during transit. Each diaphragm is individually sealed in a moisture-resistant pouch to prevent contamination and damage. The packaged diaphragms are then placed in sturdy, cushioned boxes designed to absorb shocks and vibrations.
For shipping, we use reliable carriers with tracking options to guarantee timely and safe delivery. All packages are clearly labeled with product information and handling instructions to ensure proper care throughout the shipping process. Whether shipping domestically or internationally, we prioritize the integrity and quality of the Pulse Valve Diaphragm upon arrival.
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