

Burkert diaphragm DN25 double-layer EPDM/PTFE 677677
LEHIY item code: LH-0372
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Burkert DN25 double-layer EPDM/PTFE diaphragm (model 677677) is in limited stock. Commonly used in the biopharmaceutical industry, it's used with Burkert diaphragm valves, including pneumatic, manual, and tank bottom valves. The double diaphragm is sanitary grade and FDA certified.
It's suitable for applications involving high-temperature steam sterilization and large instantaneous temperature differences. Burkert diaphragms are not easily deformed, have a timely opening and closing response, and are corrosion-resistant and wear-resistant.
To meet the needs of our long-term customers in the biopharmaceutical equipment industry, we have the following Burkert diaphragm models in stock: Burkert DN25 double diaphragm (model 677677), DN15 double diaphragm (model 677675), and DN20 double diaphragm (model 677676).
Burkert diaphragm valves use imported reinforced silicone rubber diaphragms, and the valve body undergoes high-speed precision polishing to achieve a surface finish of Ra0.2um. They are sterile, pore-free, and widely used in systems with high sterility requirements in the biological, pharmaceutical, and electronics industries.
Burkert diaphragm valves from Germany, widely used in the beer, beverage, and biopharmaceutical industries, have earned a stellar reputation for their long service life, low maintenance costs, and customizable solutions to meet specific customer application requirements.
Burkert pneumatic, manual, and electric diaphragm valves are all of superior quality, surpassing GEMU diaphragm valves in both quality and lifespan. High-quality Burkert diaphragm valves typically last five to six years without failure, requiring only the replacement of the Burkert diaphragm sheet, a crucial sealing component, every few years.
Notice Regarding Burkert Price Increase and Burkert Membrane Upgrade in 2024 Dear Valued Customers: Thank you very much for your continued support and contributions! Burkert membranes are a highly competitive product for our company! With 2023 over, Burkert membranes will be adjusted in price for. 2024.
All previously inquired prices for Burkert membrane products are now invalid!
Please contact your Burkert distributor or local Burkert office to confirm the new price list and discounts (price increases for Burkert products vary, ranging from 3% to 8%).
The following are the order numbers for Burkert membranes that have been upgraded and are subject to price increases: 677663->688421, 677664->688422, 677665->688423, 677667->688424, 677668->688425, 677669->688426, 677670->688427, 677671->688428, New customers inquiring about projects need to provide specific models and quantities.
Those who previously inquired and wish to purchase should remember to re-verify the price. Thank you! BURKERT Sanitary Membranes | BURKERT Membrane Product Overview - Membranes Suitable for Various Needs.
The BURKERT membrane series includes the following five basic types, each with different characteristics to meet various application needs: EPDM Membranes (AD): These membranes have good elasticity and are made of ethylene propylene diene monomer rubber, suitable for sanitary applications.
FKM Membranes: These membranes are made of fluororubber, especially suitable for water treatment applications. PTFE Membranes (EA): These membranes are made of polytetrafluoroethylene (PTFE/EPDM). Due to their chemical inertness and low chemical activity, they are especially suitable for sanitary processes and the chemical industry.
Advanced PTFE Membranes (EU): These membranes are made of second-generation polytetrafluoroethylene (PTFE), with improved mechanical properties, suitable for applications with large temperature variations. GYLON diaphragms (GYLON/PTFE laminated, abbreviated ER): GYLON diaphragms are made of polytetrafluoroethylene (PTFE) using a special process.
Compared to ordinary PTFE products, they have "cold-plastic processing" properties; they maintain their original shape after four bending strength tests. They are ideal for sanitary applications. Please note: Burkert diaphragms are optimized and certified for use only with Burkert diaphragm valves.
Using diaphragms from other manufacturers with Burkert valves is not recommended, as we cannot guarantee proper functioning. Burkert diaphragm certifications: FDA; EC; USP; 3-A Sanitary Standards. For more information on Burkert diaphragms and diaphragm valves, please contact us!
Plain language sourcing guide for Burkert diaphragm DN25 double-layer EPDM/PTFE 677677
Start with the full model name. Check the brand name. Check the part number. Check the code on the old unit. These small checks help you avoid a wrong order.
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| Brand Name: | Burkert | Certification: | ISO9001, CE |
|---|---|---|---|
| Place of Origin: | China | Condition: | New |
| Warranty: | 1 year | Customized sourcing: | available |
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Ans. LEHIY specializes in industrial automation and control components, offering fast sourcing, stable quality, and competitive prices for global customers.
What is your estimated delivery time?
Ans. Most items ship within 3-7 days. Customized or rare models may take 10-30 working days.
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Ans. Our main products include PLCs, sensors, valves, solenoid valves, actuators, power modules, transmitters, and complete industrial automation solutions.
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Ans. You can reach us anytime via Email, WhatsApp, LinkedIn, or our contact page. Our sales engineers respond quickly and provide technical support when needed.
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Ans. Standard terms are 50% TT in advance and 50% balance before delivery. We also support Alibaba Trade Assurance and L/C for qualified orders.
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Burkert diaphragm DN25 double-layer EPDM/PTFE 677677
Send the brand, model, part number, quantity, nameplate photos, and application requirements. LEHIY will check availability, suitable alternatives, packing details, and delivery options before quoting.
For discontinued, temporarily unavailable, or configuration-sensitive items, our team can compare the requested model with close variants or compatible replacements for maintenance and spare parts planning.
Use this page as a practical sourcing note for engineers, buyers, and maintenance teams comparing automation components. Check the model name, brand, LEHIY code, application, and replacement requirements before sending an inquiry.
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Burkert diaphragm DN25 double-layer EPDM/PTFE 677677 verification notes
Please send the full model number, quantity, target delivery date, and nameplate photos. These details help us check the requested product or a close replacement.
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If the original model is discontinued or supplied with different accessories, we can explain practical differences before quoting.
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