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An efficient tool for sizing pneumatic actuators

Have you dimensioned your valves according to the needs and wishes of your customers, for instance using CONVAL®? And are you now looking for adequate actuators, positioners or other accessories? Then AIR&SPRING by A. Hock is the perfect solution for you! The Microsoft Excel-based calculation software supports you in the precise dimensioning and sizing of your pneumatic actuators.

The software takes into account the following sizing parameters:

  • valve stroke
  • available supply air
  • actuating forces
  • safety position in case of failure of air supply

AIR&SPRING is suitable for all valve manufacturers without pneumatics.

The advantages of AIR&SPRING V1.0

  • simple, clear design with explanatory images
  • Microsoft Excel as a well-known interface
  • quick selection of suitable actuators
  • swift cost calculation, also for complex systems
  • expert mode: precise calculation of actuation forces for every stroke position

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Three steps to your perfect valve – an example

Step 1: sizing of the control valve

With the help of the manufacturer-independent software CONVAL® by F.I.R.S.T. GmbH, the control valve is calculated in detail. This process is based on tried and tested procedures involving DIN, VDI, VDMA EN/ISO standards as well as ISA, ASME, API and others. The resulting process data is used for the correct sizing and dimensioning of the valve.

Step 2: calculating the forces of the actuator

CONVAL® calculates the required forces for the smooth operation of the actuator. These forces include the closing force (in closed and open position), the opening force (in closed and open position) and the stability force (inflow in the closing direction).

Step 3: selecting the suitable A. Hock actuator with AIR&SPRING V1.0

AIR&SPRING V1.0 uses the forces calculated by CONVAL® to select the suitable pneumatic actuator by A. Hock. Additional benefit: The software allows you to choose from a variety of accessories such as smart positioners, boosters and air filters – all of them manufacturer-neutral!

Benefits for our customers:

  • The CONVAL® software calculates the exact forces needed for the precise sizing and dimensioning of control valves.
  • AIR&SPRING V1.0 allows not just for a rudimentary but for a comprehensive representation of the actuator calculation.   
  • Another benefit of AIR&SPRING is the vast choice of accessories. In addition, you can also choose special coatings directly in the software.
  • If necessary, the entire data can also be integrated into any other valve calculation software.

Do not hesitate to contact us for adaptations regarding your control valves. We will swiftly supply you with the suitable actuator – optionally also in your corporate colour!

Andreas Schalwig

Andreas Schalwig

Technical Sales

I’m happy to help you with projects and enquiries in the field of valve technology as well as measurement and control technology. I have more than 15 years of experience in the dimensioning of control valves and actuators. What’s more, I help customers from all over the world to modernise their industrial plants.