Product Description:
These premium replacement diaphragms are specially engineered for use with QBY/K series pneumatic diaphragm pumps. Crafted from robust elastomers and advanced engineering plastics, they offer reliable performance and durability tailored to various industrial needs.
Available in three distinct material variants, the diaphragms cater to different application requirements. The NBR (nitrile rubber) option is suited for general-purpose uses involving oil and water. For handling aggressive chemicals, the F46 (modified PTFE/fluoropolymer) version provides enhanced resistance. Additionally, the imported PTFE (polytetrafluoroethylene) model delivers superior chemical resistance and meets stringent high-purity standards.
The diaphragms come in multiple sizes, with outer diameters ranging from 140 mm up to 450 mm. They feature standard bolt hole patterns, such as the 10-hole configuration, as well as plain-edge styles to fit various pump models. Each diaphragm is precision-molded to ensure an exact seal, extended flex life, and consistent operation under the harshest industrial conditions.
Ideal for replacing worn or damaged components, these diaphragms serve a wide range of applications including slurry handling, chemical processing, food production, and mining transfer pumping. By choosing these high-quality replacements, users can maintain optimal pump performance and minimize downtime.
Features:
Material Options
NBR (Nitrile): This material offers excellent resistance to oil, fuel, and water. It performs effectively within a temperature range of -30°C to +100°C, making it suitable for various industrial applications.
F46 (Fluoropolymer): Known for its outstanding chemical resistance, F46 withstands exposure to acids, solvents, and strong oxidizers. It operates reliably in temperatures from -20°C up to +150°C.
Imported PTFE: Featuring a superior non-stick surface, this material is inert to almost all chemicals. Its properties make it ideal for use in food and pharmaceutical industries.
Additional Features
Diameter Range: The products are available in sizes ranging from 140 mm to 450 mm, enabling compatibility with a variety of pump models.
Bolt Hole Configurations: For larger sizes, a standard 10-hole pattern is supplied, while a plain-edge design with no holes is available for clamp-style mounting options.
High Flexural Fatigue Resistance: Engineered to endure millions of cycles without cracking, ensuring long-lasting durability.
Precision Molding: This process guarantees an accurate fit and effective sealing against pump housings, enhancing performance.
Interchangeability: These components serve as direct replacements for the QBY/K10-15, K25-40, K50-65, and K80-100 series pumps, simplifying maintenance.
Cost-Effective: Designed to extend the service life of pumps and reduce downtime, providing economic benefits.
Color-Coded Options: Blue polyether (polyurethane) versions are available for special applications that require abrasion resistance.
Technical Parameters:
| Material |
NBR, F46, PTFE, Polyether |
| Maximum Operating Temperature |
100°C (NBR), 150°C (F46), 180°C (PTFE) |
| Color |
Black (NBR), White (F46/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
These pumps are highly suitable for the transfer and dosing of various chemicals, including acids, caustics, and solvents. Their design ensures safe and efficient handling of aggressive fluids in industrial environments.
They are also widely used in the circulation of paints, inks, and coatings, providing consistent flow and maintaining the quality of the fluids involved in these manufacturing processes.
In the mining and mineral processing sectors, these pumps excel at managing slurries and mud, offering reliable performance even when dealing with abrasive materials.
Food and beverage industries benefit from these pumps as well, thanks to their construction with PTFE and FDA-compliant materials that meet strict hygiene and safety standards.
These pumps play a crucial role in wastewater and effluent treatment, ensuring effective fluid transfer and contributing to environmental protection efforts.
In the petroleum industry, they are employed for the transfer of fuel and other petroleum products, combining durability with precision.
Additionally, they are ideal for pumping ceramics and glazes, supporting manufacturing processes in the ceramics sector.
The pharmaceutical and bioprocess industries also rely on these pumps for their ability to handle sensitive fluids while maintaining sterility and compliance with industry regulations.
Finally, these pumps serve general industrial fluid transfer needs, effectively managing a variety of substances such as water, oils, and emulsions.
Customization:
Brand Name: DKE
Model Number: QBY.QBK, QBY3, ARO
Place of Origin: China
Certification: CE
Minimum Order Quantity: 1
Price: Negotiation
Packaging Details: Carton
Delivery Time: 1-7 Work Days After Payment
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 5000 Pieces/1 Month
Application: Suitable for Oil/Water Transfer, Chemical Processing, Slurry/Mining industries.
Outer Diameter: Available from 140mm to 450mm.
Color Options: Black (NBR), White (F46/PTFE)
Bolt Hole Pattern: Options include Plain, 6‑hole, 8‑hole, and 10‑hole configurations.
Material Options: High-quality NBR, F46, PTFE, and Polyether materials are used to ensure durability and performance.
We offer customized Pulse Valve Diaphragm solutions along with a comprehensive Maintenance Kit and diaphragm repair kit to ensure the longevity and optimal functioning of your valves.
Our Maintenance Kit is designed to provide all necessary components for efficient diaphragm replacement and repair, minimizing downtime and maintenance costs.
Choose DKE for reliable and customizable pulse valve diaphragm products backed by CE certification and a strong supply capacity.
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 provide comprehensive installation guidance, troubleshooting assistance, and maintenance tips to help you achieve reliable operation.
In addition to technical support, we offer a range of professional services including product training, custom diaphragm solutions, and on-site inspections. Our experts work closely with you to understand your specific application requirements and deliver tailored recommendations.
We also provide detailed product documentation, including manuals, datasheets, and FAQs, to assist you in the proper usage and care of the Pulse Valve Diaphragm. Regular updates and improvements are communicated to keep you informed about the latest advancements and best practices.
Our commitment is to ensure that your Pulse Valve Diaphragm performs efficiently and effectively throughout its service life, minimizing downtime and maximizing productivity.
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