Product Description:
These premium replacement diaphragms are specifically engineered for use with QBY/K series pneumatic diaphragm pumps. Crafted from robust elastomers and advanced engineering plastics, they ensure durability and reliable performance in various industrial applications.
Customers can choose from three distinct material options to suit their specific needs: NBR (nitrile rubber) is suitable for general-purpose applications involving oil and water; F46, a modified PTFE fluoropolymer, is designed to handle aggressive chemical environments; and imported PTFE (polytetrafluoroethylene) offers superior chemical resistance along with meeting stringent high-purity standards.
The diaphragms are available in multiple sizes, with outer diameters ranging from 140 mm up to 450 mm. They come equipped with standard bolt hole patterns, such as the 10-hole configuration, or as plain-edge versions to accommodate different pump models. Precision molding techniques are used in their manufacture to guarantee optimal sealing, extended flexural life, and consistent pumping efficiency, even under demanding industrial conditions.
These diaphragms are an excellent choice for replacing worn or damaged components in a variety of pumps, including those used for slurry, chemical processing, food production, and mining operations. Their design ensures both reliability and longevity, helping to maintain smooth and efficient pump performance.
Features:
Material Options
NBR (Nitrile) offers excellent resistance to oil, fuel, and water, making it a reliable choice for various applications. It performs well within a temperature range of -30°C to +100°C.
F46 (Fluoropolymer) is known for its exceptional chemical resistance, particularly against acids, solvents, and strong oxidizers. This material is suitable for temperatures between -20°C and +150°C.
The Imported PTFE features a superior non-stick surface and is inert to almost all chemicals, making it an ideal option for the food and pharmaceutical industries.
Dimensions and Configurations
Our products are available in a diameter range from 140 mm to 450 mm, accommodating a variety of pump models.
They come with bolt hole configurations including a standard 10-hole pattern for larger sizes, or a plain-edge design without holes suitable for clamp-style mounting.
Performance and Quality
Designed with high flexural fatigue resistance, these components can endure millions of cycles without developing cracks, ensuring long-lasting durability.
Precision molding guarantees an accurate fit and effective sealing against pump housings, enhancing overall performance.
Compatibility and Cost Efficiency
These parts are fully interchangeable and serve as direct replacements for QBY/K10-15, K25-40, K50-65, and K80-100 series pumps.
By using these high-quality materials, you can extend the service life of your pumps and reduce costly downtime, making them a cost-effective choice.
Special Features
For specialized applications such as abrasion resistance, blue polyether (polyurethane) options are available, providing additional versatility.
Technical Parameters:
| Color |
Black (NBR), White (F46/PTFE) |
| Material |
NBR, F46, PTFE, Polyether |
| Maximum Operating Temperature |
100°C (NBR), 150°C (F46), 180°C (PTFE) |
| Bolt Hole Pattern |
Plain, 6‑hole, 8‑hole, 10‑hole |
| Outer Diameter |
140mm To 450mm |
| Application |
Oil/Water Transfer, Chemical Processing, Slurry/Mining |
Applications:
Applications
This equipment is suitable for chemical transfer and dosing tasks, including handling acids, caustics, and various solvents.
It is also used for circulating paints, inks, and coatings efficiently within production processes.
In the mining and mineral processing industries, it plays a vital role in managing slurry and mud transfer operations.
For the food and beverage industry, the use of PTFE and FDA-compliant materials ensures safe and hygienic processing.
Wastewater and effluent treatment applications benefit from its reliable and effective pumping capabilities.
The equipment is capable of transferring petroleum products and fuels safely.
It is also used in ceramic manufacturing and glaze pumping tasks.
Pharmaceutical and bioprocess industries make use of this technology for various fluid handling needs.
Finally, it is ideal for general industrial fluid transfer, including water, oils, and emulsions.
Customization:
Introducing the DKE Pulse Valve Diaphragm, available in models QBY.QBK, QBY3, and ARO, proudly made in China and certified with CE standards. Our pulse valve diaphragm repair kit is designed to meet diverse industrial needs with a minimum order quantity of just 1 piece and pricing available upon negotiation.
Each diaphragm kit comes securely packaged in cartons to ensure safe delivery within 1-7 work days after payment. We accept multiple payment methods including T/T, Western Union, and Paypal to provide flexibility and convenience.
With a supply ability of 5000 pieces per month, our pulse valve repair kit is available in black (NBR) and white (F46/PTFE) colors, made from premium materials such as NBR, F46, PTFE, and Polyether. The diaphragms support various bolt hole patterns including plain, 6‑hole, 8‑hole, and 10‑hole configurations.
Designed for high-performance applications like oil and water transfer, chemical processing, and slurry/mining, the diaphragms can withstand maximum operating temperatures of up to 100°C for NBR, 150°C for F46, and 180°C for PTFE materials.
Choose DKE’s pulse valve diaphragm repair kit and diaphragm kit for reliable, durable, and efficient pulse valve repair solutions tailored to your operational requirements.
Support and Services:
Our Pulse Valve Diaphragm product is supported by a dedicated technical support team committed to ensuring optimal performance and longevity of your equipment. We offer comprehensive services including installation guidance, troubleshooting, maintenance advice, and replacement part recommendations to help you maintain efficient operation.
Our experts provide detailed technical documentation and user manuals to assist with proper installation and usage. In addition, we offer training sessions and on-site support to address any operational challenges you may encounter.
Regular maintenance services are available to help prevent downtime and extend the service life of your pulse valve diaphragm. Our team can assist with inspection routines, cleaning procedures, and timely replacement to keep your system running smoothly.
For customized solutions, we collaborate closely with clients to tailor products and services that meet specific application requirements. Our commitment is to provide reliable, high-quality support that enhances the functionality and durability of your pulse valve diaphragm.
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