Product Description:
These premium replacement diaphragms are specially engineered for the QBY/K series pneumatic diaphragm pumps. Crafted from robust elastomers and advanced engineering plastics, they offer reliable performance and durability under various operating conditions.
Customers can choose from three different material types to suit their specific needs: NBR (nitrile rubber), which is ideal for general oil and water applications; F46, a modified PTFE fluoropolymer designed to handle aggressive chemical substances; and imported PTFE (polytetrafluoroethylene), which provides superior chemical resistance and meets stringent high-purity standards.
These diaphragms are available in multiple outer diameter sizes, ranging from 140 mm to 450 mm. They come in standard bolt hole configurations, such as the 10-hole pattern, as well as plain-edge versions to fit various pump models. Each diaphragm is precision molded, ensuring excellent sealing, extended flex life, and consistent pumping efficiency.
Ideal for replacement purposes, these diaphragms are suited for use in slurry pumps, chemical transfer systems, food processing equipment, and mining operations where durability and reliability are critical.
Features:
Material Options
NBR (Nitrile) offers excellent resistance to oil, fuel, and water. It performs reliably within a temperature range from -30°C to +100°C, making it suitable for a variety of standard applications.
F46 (Fluoropolymer) provides outstanding chemical resistance, especially against acids, solvents, and strong oxidizing agents. This material can endure temperatures ranging from -20°C up to +150°C, ensuring durability in harsh environments.
Imported PTFE features a superior non-stick surface and is inert to nearly all chemicals. It is particularly well-suited for use in food and pharmaceutical industries, complying with stringent safety requirements.
Specifications
The products are available in a diameter range from 140 mm to 450 mm, accommodating various pump models. Regarding bolt hole configurations, options include a standard 10-hole pattern for larger sizes or a plain-edge design with no holes intended for clamp-style mounting.
Engineered for high flexural fatigue resistance, these materials can undergo millions of cycles without developing cracks, ensuring long-lasting performance. The precision molding process guarantees an accurate fit and effective sealing against pump housings.
Compatibility and Benefits
These components are interchangeable and serve as direct replacements for QBY/K10-15, K25-40, K50-65, and K80-100 series pumps. Cost-effectiveness is enhanced by extending pump service life and minimizing downtime.
Additionally, blue polyether (polyurethane) options are available for special applications that demand enhanced abrasion resistance, helping to further tailor solutions to specific operational needs.
Technical Parameters:
| Material |
NBR, F46, PTFE, Polyether |
| Maximum Operating Temperature |
100°C (NBR), 150°C (F46), 180°C (PTFE) |
| Application |
Oil/Water Transfer, Chemical Processing, Slurry/Mining |
| Color |
Black (NBR), White (F46/PTFE) |
| Bolt Hole Pattern |
Plain, 6‑hole, 8‑hole, 10‑hole |
| Outer Diameter |
140mm To 450mm |
Applications:
Applications
Our solutions are ideal for chemical transfer and dosing tasks, including handling acids, caustics, and various solvents. These applications demand precise and reliable equipment to ensure safety and efficiency.
We also support the circulation of paints, inks, and coatings, providing consistent flow and quality. This is essential in industries where uniform application and color consistency are critical.
In the mining and mineral processing sectors, our equipment excels in managing slurries and muds. Handling these abrasive and viscous materials requires robust and durable pumping systems.
For the food and beverage industry, we offer solutions made with PTFE and FDA-compliant materials. These products ensure sanitary conditions and meet strict regulatory standards for safe processing.
Wastewater and effluent treatment processes benefit from our reliable fluid transfer technologies. Efficient handling of these fluids is vital for environmental compliance and operational performance.
Our pumps and transfer devices are also suitable for the petroleum sector, including the movement of fuels. They provide safe and effective handling of combustible and hazardous liquids.
Ceramic manufacturing and glaze application are supported through specialized pumping solutions that maintain the integrity and consistency of these materials throughout processing.
The pharmaceutical and bioprocess industries rely on our equipment for accurate and sterile fluid handling. Our systems accommodate the stringent requirements for contamination-free processing.
Finally, our products are versatile for general industrial fluid transfer, including water, oils, and emulsions, ensuring broad usability across various sectors.
Customization:
Introducing the DKE Pulse Valve Diaphragm product line, featuring models QBY.QBK, QBY3, and ARO, proudly made in China and CE certified. Our diaphragms come in black (NBR) and white (F46/PTFE) colors, crafted from high-quality materials including NBR, F46, PTFE, and Polyether to ensure durability and optimal performance.
We offer a variety of bolt hole patterns such as plain, 6-hole, 8-hole, and 10-hole to meet diverse application needs. The diaphragms are designed to withstand maximum operating temperatures of up to 100°C for NBR, 150°C for F46, and 180°C for PTFE, making them suitable for demanding environments.
Our pulse valve diaphragms are ideal for applications in oil and water transfer, chemical processing, and slurry/mining industries. With a minimum order quantity of just 1 piece and a supply ability of 5000 pieces per month, we ensure prompt delivery within 1-7 work days after payment.
We provide diaphragm repair accessories and complete diaphragm repair kits, including the pulse valve diaphragm repair kit, to support maintenance and extend the life of your equipment. Packaging is done securely in cartons, and payment terms are flexible, accepting T/T, Western Union, and Paypal. Price is negotiable to best suit your procurement needs.
Support and Services:
Our Pulse Valve Diaphragm is designed to provide reliable performance and long service life in demanding industrial environments. 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 replacement parts, repair, and routine inspection to maintain the efficiency and functionality of your equipment. Detailed product manuals and technical datasheets are available to support your understanding and application of the pulse valve diaphragm.
If you require customization or have specific operational requirements, our engineering team can provide tailored solutions to meet your needs. We are committed to delivering high-quality support and services to help you maximize the performance and reliability of your pulse valve diaphragm.
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