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KIEPE offers original Alfa Laval DV-ST Diaphragm Valves spare parts. The valve's diaphragms are selected based on the application, considering different working conditions such as working pressure, application temperatures and process fluids (product, cleaning liquid, sterilization, passivation ...)
The valve's diaphragms are available in hard and soft elastomers. The soft elastomers are suitable for most applications and high working temperatures. while the hard elastomers are distinguished for their high degree of chemical resistance.
Alfa Laval Diaphragm properties
Property
EPDM Soft Elastomer
PTFE/EPDM Hard Elastomer
TFM/EPDM Hard Elastomer
Temperature Range
T min: -40°C T max liquid: 130°C T max steam: 150°C (continuous temperature)
T min: -5°C T max liquid: 175°C T max steam: 150°C (40 mln. steam sterilization)
T min: -5°C T max liquid: 175°C T max steam: 150°C (40 mln. steam sterilization)
Size Range (DN)
DN 8-100
DN 15-100
DN 8-100
Diaphragm Connections
Button DN8-20 Thread DN25-100
Bayonet DN15-100
Button DN8-10 Bayonet DN15-100
Certifications: All diaphragms are conformed to FDA (CFR 21:177.2600 or 177.1550, USP Class VI and TSE.
How to identify spare parts for Alfa Laval DV-ST diaphragm valve using diaphragm tab?
Alfa Laval's DV-ST diaphragm valves are designed with cast valve bodies that optimize flow by using smaller diaphragms and topworks relative to the valve pipe dimensions. The topworks can be either pneumatic or manual, providing the advantage of a slim and lightweight valve design.
To identify the correct spare parts, you can refer to the diaphragm tab. As you can see on the image below., this tab indicates the specific size of the diaphragm and the corresponding topwork required for the valve. This makes it easy to ensure you are using the correct parts for maintenance and repairs.
Img.1 Alfa Laval EPDM diaphragm Img.2 Alfa Laval PTFE-EPDM diaphragm
