Founded in 1984, SED develops, manufactures and distributes advanced valve and flowmeter technology. The aseptic diaphragm valve and all related components are SED’s core business. With more than 20 years of experience and continuous research and development, the company guarantees the highest quality and reliability of its products in every process.
SED’s universal and comprehensive range gives customers many advantages; its modular design helps reduce inventory.
We offer the full range of SED diaphragms. Diaphragms of the same size in all materials engage the valve actuator in the same way and are interchangeable in the valve without changing the diaphragm compressor or spindle.
Sizes: DN8 to DN15
Temperature: −40 °C to 150 °C
Fastening: button
Material: EPDM membrane
Sizes: DN65–DN80; DN15–DN25; DN32–DN40; DN50; DN65–DN80
Temperature: −40 °C to 150 °C
Fastening: threaded studs
Material: EPDM membrane
Sizes: DN100
Temperature: −40 °C to 150 °C
Fastening: threaded studs
Material: EPDM membrane
Sizes: DN8–DN15
Temperature: −20 °C to 150 °C
Fastening: button
Material: PTFE backed with EPDM membrane (bonded)
Sizes: DN8–DN20; DN15–DN25; DN32–DN40; DN50
Temperature: −20 °C to 150 °C
Fastening: threaded studs
Material: PTFE backed with EPDM membrane (bonded)
Sizes: DN15–DN25; DN32–DN40; DN50; DN65–DN80
Temperature: −20 °C to 160 °C
Fastening: threaded studs
Material: PTFE backed with EPDM membrane (two-piece)