Abbreviation key
Media temperature
- C = cryogenic temperature
- A = ambient temperature
Pressure range
- LP = low pressure (below 1 bar)
- MP = medium pressure (up to 40/45/63 bar)
- HP = high pressure (250 to 420 bar)
- UHP = ultra-high pressure (420 to 1.000 bar)
Vacuum jacketing
- No = not suitable for installation in vacuum-jacketed pipes
- Std = for installation in vacuum-jacketed pipes
- Opt = suitable for vacuum-jacketed pipes, vacuum flange as option
Function
- GV = Globe valve
- CV = Control valve
- CHK = Check valve
- STR = Strainer
- OV = Overflow valve
- RV = Relief valve
Actuation
- M = manual
- P = electro-pneumatic
- PR = electro-pneumatic with IP regulator
- E = electric
- S = solenoid
- SPR = spring-based
- HY = hydraulic
Actuator
What are the features of the bellows actuator?
STÖHR ARMATUREN has designed a bellows-driven pneumatic actuator especially for applications with radiation.
This development avoids damage to plastic parts and ensures maintenance-free operation without gas emissions to the environment.Special feature:
- radiation proof
- maintenance-free
- free of gas emission
What types of actuator can be used with STÖHR valves?
Depending on the valve series, our valves can be equipped with a manual drive (handwheel), pneumatic piston actuator, pneumatic diaphragm actuator, electric actuator, hydraulic driven actuator or solenoid actuator. Available combinations can be found in our product catalogue or on this website.
Depending on the requirements of your application, manual override may be required on automated actuators to close the valve in the event of a malfunction, such as power failure or loss of pressure in the pneumatic line. STÖHR ARMATUREN offer manual override as an option for many types of actuators. Please specify your requirements when requesting a quote.
Which pneumatic actuators are STÖHR valves equipped with?
We use our own pneumatic piston actuator for globe valves of up to size DN 100, and source piston or diaphragm actuators from well-known manufacturers for other applications. The standard operating pressure is 6 bar.
Why does STÖHR ARMATUREN offer its own pneumatic actuator?
Our piston actuator can be customised to suit special operating conditions such as non-industry standard operating pressures, stainless steel manufacture for installation in a marine environment, use of radiation-resistant materials, exclusion of non-ferrous metals, or vacuum-tightness to the environment.
Which electric actuators are used to equip STÖHR valves?
Our valves are available with electric actuators from well-known manufacturers for shut-off. Please specify the required electrical performance parameters (direct or alternating current, voltage, etc) when requesting a quotation.
In addition to actuators using electric motors, valves from STÖHR ARMATUREN can also be equipped with solenoid operated actuators sourced from well-known manufacturers.
Which pneumatic actuators are used by STÖHR for control valves?
We buy diaphragm actuators for control valves from well-known manufacturers. The brands and products we use are listed in our product catalogue or contained in your offer. ATEX-approved types are required for use with flammable media. If you prefer manufacturers or types other than those we offer as standard, please let us know and we will check for alternatives.
Which operating media are suitable for pneumatic actuators?
Compressed air is usually used as an operating medium, but nitrogen or intrinsic gas supply may be possible. The standard pressure supply to the pneumatic actuator is 6 bar maximum. If you require another pressure level, please let us know in your quotation request.
Product philosophy
What do STÖHR ARMATUREN products have in common?
All STÖHR products adhere to the following standards:
- Pressure-bearing parts made of solid material
- Housing and connections made of stainless steel or special steel
- High tightness of the first spindle seal to the outside using a bellows seal
- Additional safety of the second spindle seal using an O-ring or metal ring
- Media-adequate use of materials (steels and seals)
- Fulfillment of the required industry standards according to European regulations
- High operational safety
- Low maintenance and spare parts requirement
- Very low failure rates
- Long lifetime
- Low lifecycle costs
Distribution philosophy
What are the benefits of dealing with STÖHR ARMATUREN?
Our customers experience the following advantages:
- Expert advice and support from true product specialists
- Bespoke products manufactured to your exact specifications
- Help to define your requirements to suit your project
- Products supplied ready for installation
- A fast and effective response to any incidents
- Long-term replacement supply
XXL sizes – a size class of its own.
XXL-fittings up to DN300
Valve Series | Function | Media-Temp. | Nominal Diameters | Pressure Range | Actuator | Vacuum-Insulation |
---|---|---|---|---|---|---|
Valve Series | Function | Media-Temp. | Nominal Diameters | Pressure Range | Actuator | Vacuum-Insulation |
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 |
Univers 1200 | Control Valve | Ambient Valve | 10 – 150 | MP | pneumatic adjustable | No |
Univers 1200 | Control Valve | Cryogenic Valve | 10 – 150 | MP | pneumatic adjustable | Opt |
Univers 1600 | Control Valve | Cryogenic Valve | 2 – 300 | LP, MP | pneumatic adjustable | Std |
Sticks 900 TD | Control Valve | Cryogenic Valve | 15 | LP, MP (25 bar) | pneumatic adjustable | Std |
Frees 1200 TD | Control Valve | Cryogenic Valve | 10 – 50 | MP | pneumatic adjustable | Opt |