Product Description:
These top-quality replacement diaphragms are specifically engineered for the QBY/K series pneumatic diaphragm pumps. Crafted from robust elastomers and advanced engineering plastics, they ensure reliable and durable performance in various industrial applications.
There are three distinct material options available to suit different operational needs. NBR (nitrile rubber) is suitable for general-purpose use with oil and water. For handling aggressive chemicals, the F46 material, a modified PTFE fluoropolymer, offers enhanced chemical resistance. For applications requiring maximum chemical resistance and high purity, imported PTFE (polytetrafluoroethylene) diaphragms are the ideal choice.
The diaphragms come in a variety of sizes, with outer diameters ranging from 140 mm up to 450 mm. They feature standard bolt hole patterns, such as a 10-hole configuration, or plain-edge designs to accommodate different pump models. Each diaphragm is precision-molded to guarantee a perfect seal, extended flex life, and consistent pumping efficiency even in demanding industrial environments.
These replacement diaphragms are perfect for restoring worn or damaged components in slurry, chemical, food processing, and mining transfer pumps, ensuring continued reliable operation and performance.
Features:
Material Options
NBR (Nitrile): This material offers excellent resistance to oil, fuel, and water. It operates effectively within a temperature range of -30°C to +100°C, making it suitable for various industrial environments.
F46 (Fluoropolymer): Known for its outstanding chemical resistance, F46 withstands acids, solvents, and strong oxidizing agents. It performs reliably in temperatures ranging from -20°C to +150°C.
Imported PTFE: Featuring a superior non-stick surface, this material is inert to nearly all chemicals. It is particularly suitable for applications in the food and pharmaceutical industries due to its inert properties and safety standards.
Specifications and Features
The products are available in diameters ranging from 140 mm up to 450 mm, accommodating a wide variety of pump models. For mounting, they come with standard 10-hole bolt patterns for larger sizes, or a plain-edge design without holes for clamp-style installation.
Engineered to provide high flexural fatigue resistance, these materials can endure millions of cycles without cracking. Precision molding ensures an accurate fit and effective sealing against pump housings, enhancing overall performance.
These components are designed to be interchangeable, serving as direct replacements for QBY/K10-15, K25-40, K50-65, and K80-100 series pumps. This interchangeability supports ease of maintenance and reduces downtime.
Additionally, they offer a cost-effective solution by extending pump service life while minimizing operational interruptions. For special applications requiring abrasion resistance, blue polyether (polyurethane) options are available, identified by their color-coding for easy recognition.
Technical Parameters:
| Application |
Oil/Water Transfer, Chemical Processing, Slurry/Mining |
| Color |
Black (NBR), White (F46/PTFE) |
| Outer Diameter |
140mm To 450mm |
| Maximum Operating Temperature |
100°C (NBR), 150°C (F46), 180°C (PTFE) |
| Material |
NBR, F46, PTFE, Polyether |
| Bolt Hole Pattern |
Plain, 6‑hole, 8‑hole, 10‑hole |
Applications:
Applications
This equipment is ideal for chemical transfer and dosing tasks, handling substances such as acids, caustics, and solvents with ease and precision.
It is widely used in the circulation of paints, inks, and coatings, ensuring consistent flow and quality throughout the process.
In the mining and mineral processing industries, it efficiently manages slurry and mud handling, supporting demanding operational conditions.
The food and beverage sector benefits from its use, especially when constructed with PTFE or FDA-compliant materials, ensuring sanitary and safe processing.
Wastewater and effluent treatment processes rely on this technology for effective and reliable fluid management.
It is also employed in the petroleum industry for the transfer of fuels and related products, meeting stringent safety and performance standards.
The ceramic industry uses it for pumping ceramics and glazes, facilitating smooth production workflows.
Pharmaceutical and bioprocess applications make use of this equipment due to its hygienic design and material compatibility.
Moreover, it serves general industrial fluid transfer needs, including the movement of water, oils, and emulsions, adapting to a variety of industrial environments.
Customization:
Our Pulse Valve Diaphragm customization services are designed to meet diverse industrial needs with high precision and quality. Branded under DKE, our diaphragms are compatible with models QBY, QBK, QBY3, and ARO, ensuring wide applicability. Manufactured in China and CE certified, we guarantee reliable performance and safety standards.
We offer diaphragms with an outer diameter ranging from 140mm to 450mm, available in various bolt hole patterns including plain, 6-hole, 8-hole, and 10-hole configurations. The diaphragms come in black (NBR) and white (F46/PTFE) colors, crafted from premium materials such as NBR, F46, PTFE, and Polyether to suit different operational environments.
Our products are ideal for applications including oil and water transfer, chemical processing, and slurry or mining operations. We also provide comprehensive diaphragm repair accessories and diaphragm kits to facilitate easy maintenance and replacement, ensuring minimal downtime and extended valve life.
Packaging is handled with care in cartons, and we support a minimum order quantity of just one piece. Pricing is negotiable to accommodate your specific requirements. With a supply ability of 5000 pieces per month, we ensure prompt delivery within 1-7 work days after payment.
Payment terms include T/T, Western Union, and PayPal for your convenience. Choose our customized diaphragm kits and repair accessories for reliable, durable, and efficient pulse valve diaphragm solutions tailored to your exact needs.
Support and Services:
Our Pulse Valve Diaphragm product is designed to deliver reliable performance in demanding industrial applications. For technical support, we offer comprehensive assistance including installation guidance, troubleshooting, and maintenance tips to ensure optimal operation of the diaphragm. Our team of experts is ready to help diagnose issues, recommend compatible parts, and provide detailed product information to maximize the lifespan and efficiency of your pulse valve system.
We also provide a range of services such as custom diaphragm manufacturing, quality inspections, and performance testing to meet your specific requirements. Whether you need replacement parts or technical consultation, our support services are tailored to help you maintain continuous and effective operation of your equipment.
For best results, we recommend regular inspection and preventive maintenance of the pulse valve diaphragm, including checking for wear, cracks, or deformation, and ensuring proper installation. Utilizing genuine replacement diaphragms and adhering to manufacturer guidelines will help avoid downtime and extend the service life of your pulse valve system.
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