Switchable duplex strainer for continuous operation – optionally with magnetic inserts.
The duplex filter type DF is the ideal solution for industrial applications requiring uninterrupted filtration. Thanks to the changeover unit with butterfly valves or ball valves, the filter elements can be replaced during operation. The robust construction in steel or stainless steel and the wide choice of options make the DF a versatile all-rounder for liquids, gases and viscous media.
The mesh size decides the protective effect and the service interval – 1 mm is standard, 0.05 to 10 mm are possible. For the changeover, a pneumatic part-turn actuator is available in addition to the manual version.
| Characteristic | Value |
| Design | Switchable duplex filter |
| Nominal pressure | PN 6 – PN 40 |
| Nominal size | DN 50 – DN 300 |
| Temperature range | -10°C to +400°C (-200 °C to 450 °C on request) |
| Body | Steel P250GH / Stainless steel 1.4571 |
| Strainer material | Stainless steel 1.4301 / 1.4401 |
| Gasket | Graphite skewer plate |
| Connection | Flange according to EN 1092-1 |
| Standards | EN 558-1, EN 12266, PED 2014/68/EU |
Our duplex strainers type DF are not only available in standard versions – we offer numerous conversions and special solutions to optimally adapt your filters to the requirements of your system.
Our industrial sieves are not only available for standard applications – we manufacture them to fit different filter systems and sieve holder systems. Whether Y-strainers, simplex strainers, basket strainers, duplex strainers or special solutions: We supply customized strainer inserts for your specific requirements.
Special feature:
We also offer all services for strainers supplied by you or products from third-party suppliers.
Our magnetic inserts are the perfect addition to strainer inserts in strainers, basket strainers, simplex strainers and duplex strainers. They ensure the reliable separation of ferromagnetic particles such as iron, steel chips or magnetite, which occur in many process media. This increases operational reliability and extends the service life of your systems.
Yes, the switchover unit allows one filter chamber to be cleaned while the other remains in operation.
Yes, magnetic rods can be integrated to additionally separate metallic particles.
EN 1092-1, EN 558-1, Pressure Equipment Directive 2014/68/EU.
Yes, with pneumatic swivel drive for switching.
Standard 1 mm, optional from 0.05 mm to 10 mm.
Our insulations are more than just accessories – they perfectly complement valves and systems and increase efficiency, safety and adaptability.
Order and configure now.
We offer:
