Capilares para conducción de presión
They are flexible ducts of small diameter (1.6 to 3 mm) that allow us to transmit pressure from the process point to the measuring instrument. They may be capillary naked (only the duct) or incorporate some type of protective cover (spiral steel, PVC jacket, etc).
As there is no fluid circulating (the end of the capilar where the device is does not have access to other parts of the process) there is no load loss and therefore the pressure is the same in all its length.
However the capilar can produce two effects on the fluid:
- thermodynamic effect since by having a small fluid capacity but a large length, occurs an important heat dissipation in the environment.
- Much of the hammering or pulsating pressures found at the entrance of the capilar are transformed into mechanical energy (movement of the capilar) which is not transmitted to the measuring equipment.
Capilares para separadores
They are flexible ducts of small diameter (1.6 to 3 mm) that allow us to transmit pressure from the process point to the measuring instrument. They may be capillary naked (only the duct) or incorporate some type of protective cover (spiral steel, PVC jacket, etc).
As there is no fluid circulating (the end of the capilar where the device is does not have access to other parts of the process) there is no load loss and therefore the pressure is the same in all its length.
This allows placing the separators in points far from the devices without affecting the accuracy of the system.
Limitadores y amortiguadores de presión
Los limitadores de presión are intended to protect sensitive organs of pressure measuring devices against sudden or accidental overpressure in clean liquids and low viscosity liquids.
The element closes the pass of pressure when reaching the calibration pressure.
The most common models are the AORP and AORPB.
Los amortiguadores de presión protect measuring devices from the effects of dynamic pressure and pulse. They may be adjustable (can adjust the restrictor hole) or fixed (usually incorporate a porous disc through which the fluid goes).
They can be applied in clean and low viscosity liquids.
The most common models are the SNOOVER, ARA 6 and ARA10.