relief valve

tag class

Template Information
Key details and background about this template.
Is Abstract
No
Description
A self operating valve that is set to open at a certain pressure level to prevent the pressure in a container or system from reaching unsafe levels.
Synonyms
Graph View
Children
Templates that fall under this one.
conventional relief valve

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

pilot operated relief valve

A pressure relief valve that uses a pilot valve to indirectly activate the main valve.

pin-actuated pressure relief valve

A non-reclosing pressure-relief device actuated by the static differential pressure between the inlet and outlet of the device.

pressure-vacuum relief valve

A pressure relief valve that is intended to release excess pressure or admit pressure to prevent a vacuum forming when filling or emptying a pipeline or tank.

Properties
Data required for this equipment.
tag class name
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  • Max Length: 100
tag name
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area code
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commissioning unit code
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construction assembly code
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corrosion loop code
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  • Max Length: 40
designed by company name
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maintenance system code
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  • Data Type: Text
  • Max Length: 10
maintenance unit code
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  • Data Type: Text
  • Max Length: 10
manufacturer company name
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  • Data Type: Text
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model part name
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  • Max Length: 100
parent tag name
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  • Data Type: Text
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plant code
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  • Data Type: Text
  • Max Length: 40
process unit code
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  • Data Type: Text
  • Max Length: 40
production critical item indicator
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  • Source: tag class
  • Data Type: Boolean
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safety critical item group code
Required
  • Source: tag class
  • Data Type: Text
  • Max Length: 40
safety critical item indicator
Required
  • Source: tag class
  • Data Type: Boolean
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safety critical item reason awarded
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  • Source: tag class
  • Data Type: Text
  • Max Length: 30
tag description
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  • Source: tag class
  • Data Type: Text
  • Max Length: 255
tag requisition number
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  • Source: tag class
  • Data Type: Text
  • Max Length: 50
tag status
Required
  • Source: tag class
  • Data Type: Text
  • Max Length: 40
body material
Required
  • Source: relief valve
  • Data Type: Text
  • Max Length: 100
  • Picklist: material
cold differential test pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
constant back pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
design specification
Required
  • Source: relief valve
  • Data Type: Text
  • Max Length: 40
fluid name
Required
  • Source: relief valve
  • Data Type: Text
  • Max Length: 100
  • Picklist: fluid
fluid phase
Required
  • Source: relief valve
  • Data Type: Text
  • Max Length: 40
  • Picklist: fluid phase
lower limit design temperature
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: TEMP
nominal inlet diameter
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: LENGTH
nominal outlet diameter
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: LENGTH
normal operating dynamic viscosity
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: VISDYN
normal operating mass flow rate
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: MASFLO
normal operating pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
normal operating temperature
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: TEMP
orifice area calculated
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: SURFAC
relief bellows
Required
  • Source: relief valve
  • Data Type: Boolean
  • Max Length: 3
safety integrity level
Required
set pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
spring material specification
Required
test medium
Required
  • Source: relief valve
  • Data Type: Text
  • Max Length: 40
  • Picklist: test medium
test pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
upper limit operating temperature
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: TEMP
variable back pressure
Required
  • Source: relief valve
  • Data Type: Number
  • Max Length:
  • Unit of Measure: PRESS
Related Templates
Templates linked to this one.
relief valve
equipment class

A self operating valve that is set to open at a certain pressure level to prevent the pressure in a container or system from reaching unsafe levels.