KDV’s DN100 ETFE-lined diaphragm valves are engineered for use in aggressive process media where chemical resistance, long service life, and low maintenance are required. These valves are increasingly relied upon in operations where traditional materials would degrade under continuous exposure to corrosive fluids.
Industries across chemical processing and water treatment have seen reduced unplanned downtime thanks to the reliability of KDV’s lined valve range. The ETFE lining addresses a key issue for maintenance engineers: premature corrosion failure in standard diaphragm valves. With over three decades of experience in flow control manufacturing, KDV continues to supply high-performance solutions to suit harsh environments.
Specifications for Industrial Service Demands
- Nominal Size: DN100
- Face-to-Face: EN 558-1 Series 1 (DIN 3202-F1)
- Lining: ETFE (Ethylene Tetrafluoroethylene)
- Operating Pressure: Up to 10 bar
- Temperature Range: -10°C to 149°C
- Standards Compliance:
- Design: EN13397-2001, MSS SP88
- Testing: EN12266-1, MSS SP88
- Flange drilling: EN1092 (PN10/16), AS2129 Table D/E, JIS B2220
- Design: EN13397-2001, MSS SP88
Each valve is supplied to meet KDV’s strict QA procedures, supported with test certificates for pressure, material, and lining thickness verification.
Where This Valve Excels in Practice
The DN100 ETFE-lined diaphragm valve is suitable for systems handling harsh acids, chlorinated media, or solvents. Common uses include:
- Chemical processing lines with strong oxidising agents
- Water treatment facilities that use high-purity or demineralised water
- Mining and smelting plants, particularly where leachates and slurry are present
Due to its non-reactive lining, it fits seamlessly into clean-process designs. The valve integrates easily with other lined components and is compatible with plastic-lined diaphragm valves used in both manual and automated setups.
For a broader understanding of valve types and their applications, you may refer to this comprehensive list of valves.
ETFE Lining and Functional Design Considerations
ETFE is chosen for this model due to its resilience against a wide chemical range and resistance to permeation, even under elevated pressure or temperature. The diaphragm valve’s top-entry body design allows for straightforward inspection and changeout of internal components.
The internal geometry minimises flow disruption, promoting even media passage and reducing pressure loss across the valve body. This is critical when dealing with viscous or abrasive fluids.
The corrosion-resistant lining forms a continuous barrier between process media and metallic surfaces, eliminating the risk of metal attack or process contamination — common issues with poorly lined or unlined alternatives.
These valves are built to last through hundreds of cycles without compromising the diaphragm membrane or body sealing. For users seeking longer service intervals and consistent performance, the DN100 ETFE-lined design provides a cost-efficient upgrade path.
For more detailed information on ETFE-lined valves and their benefits, you can explore Saunders® ETFE Lined Valves.
Installation & Maintenance Tips
When installing this model, it’s recommended to ensure bolt alignment is even to avoid distorting the liner face. Gasket compatibility should also be verified to prevent chemical incompatibility.
For critical areas, KDV suggests complementing the valve with pipeline safety products such as shields, detection paints, or neutralisers to help maintain site compliance and reduce operator exposure to leaks.
Diaphragms should be visually checked at planned intervals depending on cycle frequency, although the ETFE lining and full port design contribute to low fouling rates and minimal wear.
FAQs – KDV DN100 ETFE-Lined Diaphragm Valves
Q1: What makes the KDV DN100 ETFE-lined diaphragm valve suitable for corrosive applications?
The ETFE lining provides excellent resistance against acids, alkalis, and solvents, maintaining barrier integrity over time in aggressive media.
Q2: Can this valve be automated for use with smart systems or PLCs?
Yes, the DN100 model is compatible with pneumatic actuators and electric actuators, making it suitable for remote control and integration with plant automation platforms.
Q3: How does this model compare to previous generation valves?
This model offers superior lining adhesion, more precise manufacturing tolerances, and improved flow geometry versus older plastic-lined units.
Q4: Are replacement parts and linings available globally?
KDV stocks diaphragms and spare parts regionally through its distribution network in the UK, Europe, and Asia-Pacific.
Q5: What customisation options are available for this valve type?
Clients may specify alternate diaphragm grades, body materials, operator options, and flange types based on system compatibility and project specification.
Summary & Next Steps
KDV’s DN100 ETFE-lined diaphragm valves are purpose-built for corrosive duties, offering reliable sealing, reduced contamination risk, and longer service life. If you require technical assistance or a datasheet for project inclusion, please contact KDV or request a quote from our engineering team.
