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● Semiconductor technology

High Purity Ball Valves for semiconductor technology

High Purity Ball Valves for semiconductor technology

The DG5HP series ball valves are the ideal solution for ultra-pure media and applications with the highest purity standards. They feature a compact design, full flow capacity, and maximum reliability in demanding industrial processes.

High Purity Ball Valve - DG5HP

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
  • End: 1.4409 - orbital weld ends
  • Stem: 1.4542
  • Seat: PTFE virgin - reduced dead space design
  • Body seal: PFTE virgin
  • Packing: PTFE virgin

This table contains only a selection of our materials, connections, cleaning, tests, etc.

DG5HP - High Purity-Kugelhahn

High-purity Kugelhahn DG5HP

Designed to meet the highest purity requirement

The DG5HP ball valve series combines precision manufacturing, uncompromising cleanliness, and maximum flexibility. From polished internal surfaces and oil- and grease-free assembly processes to comprehensive testing and documentation, every detail is designed for safe use in demanding ultra-pure media applications.

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

If you have any questions or require further information, please do not hesitate to contact us! Contact our experts for individual advice:

Stefan Leinhos

Stefan Leinhos

Product Manager
Ball Valves

+49 231 61009-345
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