screwed or flangedBall Non-return Valve
Ball non-return valve with weld end acc. DIN11866 or clamp connection acc. DIN32676.
Non-return Valves
Non-return valves for sterile gas and liquid lines: they let the medium pass in one direction and prevent backflow. Available in several valve designs, connection types, materials, gaskets and opening pressures.
0.2bar opening pressure as standard
0.036…3.0bar opening pressure on request
25bar pressure rating up to DIN40
Ra < 0.6µm, product contact electropolished
Overview
One direction. No backflow.
- For gases and liquids
- Several valve designs available
- Weld end or clamp connection
- Opening pressure 0.2 bar as standard, others on request
- Product-contact surfaces electropolished
- Gaskets FDA conform, USP Class VI, TSE-free
- Product-contact parts marked for traceability
- CIP and SIP capable
- Spare part sets for every valve design
Valve designs
Ball, disc, magnet. And further designs.
Besides the three designs shown, the range includes: eccentric ball non-return valve, membrane non-return valve with EPDM membrane, magnetically closing disc non-return valve in L-design, and the compact disc non-return valve for installation in a
screwed or flangedDisc Non-return Valve
Disc non-return valve in screwed and flanged version, with spare part set.
Disc non-return valveMagnetically Closing
Magnetically closing disc non-return valve, flanged. The magnet pulls the disc into its seat with a defined force and so prevents backflow. It opens from just 0.036 bar — even in lines with little inlet pressure.
Pressure ratings
The larger the size, the lower the pressure rating.
Pressure ratings by pipe standard and nominal size.
| Nominal size | Pressure rating up tobar |
|---|---|
| DIN04–DIN40 | 25 |
| DIN50–DIN100 | 16 |
| DIN125–DIN150 | 8 |
| ISO06–ISO25 | 25 |
| ISO32–ISO80 | 16 |
| ISO100 | 10 |
| ISO125–ISO150 | 8 |
| OD ¼"–OD 1½" | 25 |
| OD 2"–OD 4" | 16 |
Technical data
Materials, surfaces, opening pressures.
- Standard sizes
- DIN04–DIN150, ISO06–ISO150, OD ¼"–OD 6"
- Connections
- Weld end DIN11866, clamp DIN32676,
bio-plus® screw connection,bio-plus® flange; special connections on request - Product contact
- 1.4435 BN2 (316L)
- Non product contact
- 1.4305 or equivalent
- Special materials
- 2.4602, titanium, 1.4539 and others on request
- Closing element
- PTFE closing ball or closing cone, depending on valve type
- Spring
- 1.4401
- Membrane
- EPDM
- Surface
- Product contact electropolished Ra < 0.6 µm
- Opening pressure
- 0.2 bar as standard; 0.036 to 3.0 bar on request; magnetically closing version 0.036 bar
- Gaskets
- EPDM −40 to +150 °C, FEP/silicone −60 to +200 °C, PTFE −195 to +260 °C, FKM depending on configuration; others on request
- Media
- Gases and liquids
- Traceability
- Product-contact parts marked with article number, material and heat number
- Certificates
- EN10204 3.1
- Compliance
- FDA conform, USP Class VI, TSE-free
Spare parts
One set per design. Everything that wears.
Each valve design has its own spare part set. It contains the parts replaced during maintenance.
Spare part sets
- Ball non-return valve
- Disc non-return valve
- Magnetic disc non-return valve
- Magnetic disc non-return valve, L-design
- Eccentric ball non-return valve
- Membrane non-return valve
- Compact disc non-return valve
Contents of a set
- Closing ball or closing disc
- Spring
- Support flange
- O-ring
- Internal part with gasket, depending on valve type
Contact
Enquiry
The choice depends on medium, flow conditions and process. Tell us the valve design, connection, pipe standard, nominal size, material, gasket and required opening pressure — we will propose the right version.
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