Product Description:
The Parker 2-series O-rings are precisely molded elastomeric seals that conform to the AS568A dimensional standards. This particular series encompasses dash numbers ranging from 2-201 to 2-284, all sharing a consistent cross-section size of 3.53 mm (0.139"). The internal diameters in this range vary widely, starting from approximately 7.59 mm for the 2-201 model and extending up to 456.06 mm for the 2-284 model. This variety ensures coverage of a vast array of gland sizes, from small hydraulic fittings to large-scale industrial housings.
To accommodate various fluid types and temperature conditions, these O-rings are produced using three different elastomer families. The NBR (Nitrile) option is suited for general-purpose applications involving petroleum and hydraulic fluids. The FKM (Fluoroelastomer) variant is designed to withstand harsh chemicals and elevated temperature environments. Meanwhile, the EPDM (Ethylene Propylene) material is ideal for applications involving water, steam, and polar solvents.
Each elastomer compound is engineered to offer reliable resistance against compression set, ensuring consistent sealing performance in both static and dynamic gland configurations. This combination of precision, material variety, and durability makes the Parker 2-series O-rings suitable for a wide range of sealing needs across diverse industries.
Features:
The AS568A series complies with precise dimensional standards, molded to meet the standard dash-number tolerances. This ensures drop-in interchangeability, allowing easy replacement without any modifications.
All products within the 2-201 to 2-284 range feature a uniform cross-section of 3.53 mm ± 0.10 mm. This consistency in cord size simplifies the design of glands and helps streamline spare parts management.
The NBR (Nitrile) material is designed for general-purpose use, offering excellent resistance to petroleum oils, fuels, and hydraulic fluids. It typically operates effectively within a temperature range of approximately -34°C to +100°C (-30°F to +212°F).
FKM (Fluoroelastomer) provides superior chemical resistance, making it suitable for aggressive chemicals, acids, and various fuels. Its standard service temperature range spans about -25°C to +200°C (-13°F to +392°F).
For applications involving hot water, steam, and polar solvents, EPDM (Ethylene Propylene) is the preferred choice. It performs reliably within temperatures typically ranging from -50°C to +150°C (-58°F to +302°F).
This product line offers broad size coverage, encompassing 84 dash numbers from 2-201 to 2-284. The internal diameters covered range approximately from 7.59 mm up to 456.06 mm, catering to a wide variety of needs.
Technical Parameters:
| Typical Parker Compound |
N0674-70, V0747-75, E3609-70 |
| Inside Diameter |
4.34mm To 456.06mm |
| Hardness (Shore A) |
70, 75 |
| Cross-Section |
3.53 mm |
| Tolerance (mm) |
±0.10, ±0.15 |
| Material |
NBR, FKM, EPDM |
This Pulse Valve Diaphragm is an essential component of QBY air diaphragm pump spare parts. It is designed to meet the requirements of QBY diaphragm pump systems, ensuring optimal performance and durability. As a reliable QBY air diaphragm pump spare part, it comes with precise specifications to suit various applications.
Applications:
In the realm of hydraulic and pneumatic systems, NBR O-rings are widely utilized. These seals are essential for cylinder seals, valve bodies, and connections within fluid lines, ensuring reliable and efficient operation.
For chemical processing applications, FKM O-rings are the preferred choice. They provide excellent sealing for pump housings, reactor seals, and aggressive media transfer lines, standing up to harsh chemical environments.
When it comes to water and steam systems, EPDM O-rings offer outstanding performance. These seals are commonly used in boiler fittings, hot water valves, and sanitary process lines, thanks to their resistance to heat and steam.
In general industrial assembly, AS568 2-series O-rings are frequently employed. These versatile seals are ideal for gearboxes, actuators, flanges, and standard gland sealing tasks, providing dependable sealing solutions across various equipment.
Support and Services:
Our Pulse Valve Diaphragm products are designed for durability and optimal performance in various industrial applications. To ensure the longevity and functionality of your pulse valve diaphragm, it is important to follow proper installation and maintenance procedures.
For installation, always verify that the diaphragm is compatible with your specific pulse valve model. Carefully inspect the diaphragm for any signs of damage or defects before installation. Ensure that the seating surface is clean and free of debris to prevent leaks and ensure a proper seal.
During maintenance, regularly check the diaphragm for wear, cracks, or deformation. Replace the diaphragm promptly if any damage is detected to avoid system downtime or failure. Use only manufacturer-approved replacement parts to maintain product integrity and performance.
If you experience any issues with the pulse valve diaphragm, such as leakage, reduced performance, or unusual noises, perform a thorough inspection and clean the valve components as necessary. Keep the diaphragm and valve assembly free from contaminants and chemical exposure that could degrade the material.
Our technical support team is available to provide guidance on installation, troubleshooting, and maintenance best practices. We also offer customized service plans and training sessions to help optimize the use and care of your pulse valve diaphragms, ensuring reliable operation and extended service life.
For more detailed technical information, installation manuals, and troubleshooting guides, please refer to the product documentation provided with your purchase or visit our official website.
Packing and Shipping:
Each Pulse Valve Diaphragm is carefully packaged to ensure maximum protection during transit. The diaphragm is first wrapped in a protective film to prevent any damage or contamination. It is then placed inside a sturdy, custom-fitted box designed to minimize movement and absorb shocks.
For bulk orders, multiple units are securely arranged within larger cartons, with additional cushioning materials such as foam inserts or bubble wrap to maintain product integrity.
All packages are clearly labeled with product details, handling instructions, and shipping information to facilitate smooth logistics and delivery.
We partner with reliable shipping carriers to guarantee timely and safe delivery to your specified location, whether domestic or international.
Upon receipt, please inspect the packaging and product immediately to ensure there is no damage. Contact our customer service promptly if any issues are found.
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