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Fittings for research and science

Cryo technology has increasingly found its way into wide scientific fields in recent years. In research applications, liquid helium (LHe) is often used as a medium at temperatures just above absolute zero (-271 °C). Examples include the cooling of superconducting magnets, or use in cryostats, where the avoidance of heat input into the medium for precise measurements is often the main focus – which is where valves from STÖHR ARMATUREN come into their own.


 

Long-term experience

Many years of experience in scientific applications
Since the 1970s, STÖHR ARMATUREN has specialised in the development of cryogenic valves with vacuum insulation. We have a wealth of experience built up over almost 50 years of dealing with cryogenic and vacuum technology, and our products always meet the highest demands:

  • High leak tightness at seat and to the environment
  • Extremely low heat input
  • High flow performance (synonymous with a high Kv or Cv value)
  • Avoidance of induced heat supply from outside by diverting from the valve spindle by means of sliding thermal contacts or by using new materials for the valve spindle
  • Avoidance of media contamination in the event of a fault (for example due to breakage of the bellow)
  • Integration of monitoring sensors into the valve, in combination with an energy harvester
  • Safety for the plant operators and for the plant itself

 

Requirements

Valve technology that meets rigorous demands
In addition to the suitability for a vacuum insulation, the following is required for different valve functions:

  • High leak tightness at seat with shut-off valves
  • High control accuracy over a setting range with many intermediate control steps for control valves, coupled with the specified control characteristic
  • Filtering the medium for low pressure drop contamination (Δp) for filters
  • Low opening pressure on blow-off valves 

 

Our clients

Our clients: direct customers and end customers
Our customers in this market segment are scientific and research institutes in Germany and around the world, as well as highly specialised plant engineers and plant construction companies.


 

Many options

Options for adaptation to a wide variety of operating conditions
Our series 1600 valves are specially designed to meet these extreme requirements. Stem extension or diameter of the welding flange are available as well as different control characteristics (equal percentage, linear, custom individual) of the control cone. Special requirements such as resistance to magnetic fields or radioactivity can be fulfilled on demand.


 

Check it out

Select the fittings you need for your specification from our product portfolio, using the configurator below. For bespoke products and special orders, email your specification to sales@stoehr-valves.de. If necessary, use our online checklists to help you define the valve you need. 


 

Valve Series Function Media-Temp. Nominal Diameters Pressure Range Actuator Vacuum-Insulation
Valve Series Function Media-Temp. Nominal Diameters Pressure Range Actuator Vacuum-Insulation
Novis 500 Globe Valve Cryogenic Valve 15 – 25 MP (25 bar) manual No
Novis 500 Globe Valve Cryogenic Valve 15 – 25 MP (25 bar) pneumatic No
Novis 500 Control Valve Cryogenic Valve 15 – 25 MP (25 bar) pneumatic adjustable No
Univers 800 Globe Valve Cryogenic Valve 10 – 50 MP (45 bar) manual No
Univers 800 Globe Valve, check function integrated Cryogenic Valve 10 – 50 MP (45 bar) manual No
Sticks 900 Globe Valve Cryogenic Valve 15 MP (25 bar) manual Std
Sticks 900 Globe Valve Cryogenic Valve 15 MP (25 bar) pneumatic Std
Sticks 900 Control Valve Cryogenic Valve 15 LP, MP (25 bar) pneumatic adjustable Std
Sticks 900 Control Valve Cryogenic Valve 15 LP, MP (25 bar) pneumatic Std
Sticks 900 Strainer Cryogenic Valve 15 MP (18 bar) Std
Univers 1200 Globe Valve Ambient Valve 10 – 300 MP manual No
Univers 1200 Globe Valve Ambient Valve 10 – 150 MP pneumatic No
Univers 1200 Globe Valve Ambient Valve 10 – 40 MP electric No
Univers 1200 Globe Valve Ambient Valve 10 – 50 MP solenoid No
Univers 1200 Control Valve Ambient Valve 10 – 150 MP pneumatic adjustable No
Univers 1200 Check Valve Ambient Valve 10 – 100 MP spring based No
Univers 1200 Strainer Ambient Valve 10 – 100 MP No
Univers 1200 Globe Valve Cryogenic Valve 10 – 300 MP manual Opt
Univers 1200 Globe Valve Cryogenic Valve 10 – 150 MP pneumatic Opt
Univers 1200 Control Valve Cryogenic Valve 10 – 150 MP pneumatic adjustable Opt
Univers 1200 Check Valve Cryogenic Valve 10 – 100 MP spring based Opt
Univers 1200 Strainer Cryogenic Valve 10 – 100 MP Opt
Magros 1500 Check Valve Ambient Valve 6 – 100 MP solenoid No
Magros 1500 Check Valve Cryogenic Valve 6 – 100 MP solenoid No
Univers 1600 Globe Valve Cryogenic Valve 2 – 300 MP manual Std
Univers 1600 Globe Valve Cryogenic Valve 2 – 300 MP pneumatic Std
Univers 1600 Control Valve Cryogenic Valve 2 – 300 LP, MP pneumatic adjustable Std
Univers 3200 Globe Valve Cryogenic Valve 4 – 10 MP manual Opt
Univers 3200 Globe Valve Cryogenic Valve 4 – 10 MP (25 bar) pneumatic Opt
Univers 4200 Globe Valve Ambient Valve 4 – 25 HP (250 bar) manual No
Univers 4200 Globe Valve Ambient Valve 4 – 25 HP (250 bar) pneumatic No
Univers 4200 Check Valve Ambient Valve 4 – 25 HP (250 bar) spring based No
Univers 4200 Globe Valve Cryogenic Valve 4 – 25 HP (250 bar) manual Opt
Univers 4200 Globe Valve Cryogenic Valve 4 – 25 HP (250 bar) pneumatic Opt
Univers 4300 Globe Valve Ambient Valve 4 – 50 HP (250 bar) manual No
Univers 4300 Globe Valve Ambient Valve 4 – 50 HP (250 bar) pneumatic No
Balans 7100 Globe Valve Ambient Valve 10 – 40 HP (360 bar) manual No
Balans 7100 Globe Valve Ambient Valve 10 – 40 HP (360 bar) pneumatic No
Balans 7100 Globe Valve Cryogenic Valve 10 – 40 HP (360 bar) manual No
Balans 7100 Globe Valve Cryogenic Valve 10 – 40 HP (360 bar) pneumatic No
Locks Globe Valve Ambient Valve 10 MP (24 bar) manual No
Ellips 1700 Globe Valve Cryogenic Valve 8 – 100 MP (25 bar) manual Opt
Ellips 1700 Globe Valve Cryogenic Valve 8 – 100 MP (25 bar) pneumatic Opt
Sticks 900 TD Globe Valve Cryogenic Valve 15 MP (25 bar) manual Std
Sticks 900 TD Globe Valve Cryogenic Valve 15 MP (25 bar) pneumatic Std
Sticks 900 TD Control Valve Cryogenic Valve 15 LP, MP (25 bar) pneumatic adjustable Std
Frees 1200 TD Globe Valve Cryogenic Valve 10 – 50 MP manual Opt
Frees 1200 TD Globe Valve Cryogenic Valve 10 – 50 MP pneumatic Opt
Frees 1200 TD Control Valve Cryogenic Valve 10 – 50 MP pneumatic adjustable Opt
Blasts 2600 Relief Valve Ambient Valve 10 – 50 MP spring based No
Blasts 2600 Relief Valve Ambient Valve 10 – 50 MP spring based No
Blasts 2600 Relief Valve Ambient Valve 6 – 10 MP spring based No
Axius 1400 Globe Valve Cryogenic Valve 6 – 80 HP (420 bar) pneumatic No
UHP 800 Globe Valve, Relief Valve Ambient Valve 10 – 15 UHP (800 bar) manual, pneumatic No
NPPs Globe Valve, Check Valve Ambient Valve 16 – 250 16 - 250 bar manual, solenoid No
Axius 1400 Globe Valve Cryogenic Valve 6 – 80 HP (420 bar) pneumatic No

Best for Helium - and nothing gets lost.
We offer solutions for liquid helium applications.Valves from STÖHR optimize effort and cost for an efficient transport of the medium to and within your gas plant.

Best for Helium

When used in 24 / 7 / 52 continuous operation, STÖHR valves are not immune to errors, despite their tried and tested design, the use of the best materials and careful processing during assembly and testing. If this happens, we offer support:

Valve Service 

XXL - valves with bellow sealing up to DN300, a class of its own. The application determines the size. STÖHR ARMATUREN offers them for all valve functions also in the biggest sizes.

From XXS to XXL