Semiconductor technology
-
in Industries
High Purity Ball Valves for semiconductor technology
DG5HP series ball valves - for demanding applications with the highest purity standards.
Compact design and full flow for ultra-pure media
DG5HP - High Purity Ball Valve
Our high purity ball valves have been designed for the semiconductor technology to meet the demanding standards of the industry.
A quick overview of the key data:
Sizes: DN 8 to DN 150
Pressure ratings: up to PN 125
Materials*:
Body: 1.4408
Ball: 1.4408
Ends: 1.4409 - orbital weld ends*
Stem: 1.4542
Seat rings: PTFE pure - reduced dead space design
Housing rings: PFTE pure
Packing: PTFE pure
*This table contains only a selection of our materials, connections, cleaning, tests, etc.
Maximum purity thanks to precise polishing of the inner passages:
To ensure maximum purity, the internal passages of our ball valves are precisely machined. The arithmetic mean roughness value Ra is
≤ 0.8 µm.
Automation - flexible actuation options:
Our ball valves are equipped with a standard mounting flange in accordance with EN ISO 5211, which enables direct actuator mounting without interrupting the control stem. The flexible actuation options - whether pneumatic, electric or manual - enable customized solutions to meet individual customer requirements.
Maximum purity through careful processes:
To meet the highest cleaning standards, our valves are subjected to an oil- and grease-free cleaning process. In addition, a solvent-free assembly process is used. Finally, the ends of the ball valves are sealed with caps for protection and the ball valves are individually shrink-wrapped for maximum cleanliness.
Comprehensive documentation and test certificates:
As a certified company, we not only guarantee first-class valves, but also comprehensive documentation, certificates and a wide range of testing options - including acceptance test certificates in accordance with EN 10204/3.1 and pressure and leak tests in accordance with DIN EN 12266-1 P10, P11 and P12.
High adaptability of the high purity ball valves
The common pipe dimensions listed in the table can be processed flexibly in our production facilities:
| Pipe [mm] |
| 13,5 x 1,6 |
| 17,2 x 1,6 |
| 21,3 x 1,6 |
| 26,9 x 1,6 |
| 33,7 x 2,0 |
| 42,4 x 2,0 |
| 48,3 x 2,0 |
| 60,3 x 2,0 |
| 76,1 x 2,0 |
| 88,9 x 2,3 |
*Section of possible pipe dimensions
Maximum transparency: Insights into our audits
Discover the results of recent audits at GEFA Processtechnik GmbH from October 2023 - proof of commitment to the highest standards and transparency:
| Test parameters | DN 50 | DN 100 |
| Spindle packing | 1,6*10-6 mbar*l/s | 1,3*10-6 mbar*l/s |
| Housing seal ∅ | 0,8*10-6 mbar*l/s | 2,7*10-6 mbar*l/s |
| Seat tightness | 1,0*10-6 mbar*l/s | 1,0*10-6 mbar*l/s |
*Leak test with 30 bar helium
Download our semiconductor technology flyer here
Semiconductor Technology & High-Purity Media (GB) (3.89 MB)
If you have any questions or require further information, please do not hesitate to contact us! Contact our experts for individual advice:
Anja Herms
Product Manager
Ball Valves
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