safety integrity level

Text

Property Information
Details and background about this property.
Description
A relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction
Length
5
Unit of Measure
Synonyms
  • CFIHOS ID
    CFIHOS-40000579
Equipment
Equipment that requires this property.

A pressure transmitter where pressure is applied to one side of the sensor while the other side has a vacuum chamber.

A transmitter measuring an axial displacement and generating a standardized output signal representing the axial measured displacement.

A ball valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A valve that can be used for rapid depressurizing of a high pressure system.

A butterfly valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A choke valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A transmitter measuring how much of a given substance there is mixed with another substance and transmit a signal proportional to the measured level.

A transmitter that is producing a standardized output signal dependent of a received input signal from a conductivity meter.

A transmitter that is intended to measure and transmit conductivity.

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A valve that can be used to modify (regulate) the fluid flow rate in a process control system. It usually includes an actuator, which responds to a signal from the controlling system and changes the position of the flow controlling element in the valve.

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A regulator that operates automatically to affect a controlled variable by comparing the value of the controlled variable with the value of a reference variable in order to reduce the difference between them.

A pressure relief valve that has its closing force provided by a spring.

A transmitter that is producing a standardized output signal dependent of a received input signal from a corrosion sensor.

A transmitter that transmits an analogue electrical current.

A facility for measuring dew point and transmitting a signal representing the measured temperature.

A diaphragm valve that is equipped with an actuator that manipulates a stream of fluid in the response to a signal from an external sensing element and with input of energy from an external source.

A flow transmitter providing an output signal that is proportional to the flow inputs from a differential pressure flow meter.

A level transmitter that is measuring liquid level by sensing pressure difference between two points, e.g. the hydrostatic pressure at the bottom of a tank to the atmosphere pressure.

A pilot switch intended to switch or give an on/off signal when the measured differential pressure has reached a pre-set value.

A pressure transmitter that is producing a standardized output signal dependent of a received pressure difference signal.

A level transmitter which uses a displacer as sensing element.

A valve that is intended for subsurface control/check operation.

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A 'detector' for measuring the velocity, mass, charge, flight direction, and number of dust particles in space.

A control valve that uses a rotating disc as closing element, and with a design that causes the disc to take a slightly eccentric path during actuation.

A flow transmitter that is specially designed to convert the signals from an electromagnetic flow meter into a standardized electrical output signal.