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Pressure & Vacuum Vents – API 7TH Edition

Pressure & Vacuum Vents – API 7TH Edition

Pressure & Vacuum Vents - API 7TH Edition

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What is the Shand & Jurs model number?*

Identifies the specific vent model being applied.

How to determine? Refer to datasheet, nameplate, configurator/product selection tool or purchase order.

View Data Sheet (94020o Open 94020 Pres/Vac Vent + 94306 Flame Arrester)

View Data Sheet (94020c Closed Pressure/Vacuum Vent (outlet > inlet))

View Data Sheet (94020s Closed Pressure/Vacuum Vent (outlet = inlet))

View Data Sheet (94040o Open Spring Loaded Pressure/Vacuum Vent)

View Data Sheet (94040c Closed Spring Loaded Pressure Vacuum Vent (outlet > inlet))

View Data Sheet (94040s Closed Spring Loaded Pressure Vacuum Vent (outlet = inlet))

View Data Sheet (94050o Open PVC Pressure/Vacuum Vent)

View Data Sheet (94050c Closed PVC Pressure/Vacuum Vent)

View Data Sheet (94060 FRP Vacuum Vent Only)

View Data Sheet (94060o Open FRP Pressure/Vacuum Vent)

View Data Sheet (94060c Closed FRP Pressure/Vacuum Vent (outlet > inlet))

View Data Sheet (94060s Closed FRP Pressure/Vacuum Vent (outlet = inlet))

View Data Sheet (94100 Vacuum Vent, 6in 125 PSI MWP, 10in 75 PSI MWP)

View Data Sheet (94103 Vacuum Vent 150 PSI MWP)

View Data Sheet (94110 Vacuum Vent)

View Data Sheet (94115 Vacuum Vent Side Mounted)

View Data Sheet (94116 Snap Action Vacuum Breaker)

View Data Sheet (94130o Open Pressure Vent)

View Data Sheet (94130c Closed Pressure Vent (outlet > inlet))

View Data Sheet (94130s Closed Pressure Vent (outlet = inlet))

View Data Sheet (94140o Open Spring Loaded Pressure Vent)

View Data Sheet (94140c Closed Spring Loaded Pressure Vent (outlet > inlet))

View Data Sheet (94140s Closed Spring Loaded Pressure Vent (outlet = inlet))

View Data Sheet (94160o Open Pressure Vent)

View Data Sheet (94470o Open 94020 Pres/Vac Vent + 94406 Deflagration Flame Arrester)

View Data Sheet (94470c Closed 94020 Pres/Vac Vent = 94406 Deflagration Flame Arrester (outlet > inlet))

View Data Sheet (94470s Closed 94020 Pres/Vac Vent + 94406 Deflagration Flame Arrester (outlet = inlet))

View Data Sheet (94570o Open Combo Pressure/Vacuum Vent & Flame Arrester)

View Data Sheet (94570c Closed Pressure/Vacuum Vent & Flame Arrester (outlet > inlet))

View Data Sheet (94570s Closed 94020 Pres/Vac Vent + 94306 Flame Arrester (outlet = inlet))

View Data Sheet (97570o Open Pressure/Vacuum Vent & Flame Arrester)

View Data Sheet (97570c Closed 94020 Pres/Vac Vent + 94306 Flame Arrester (outlet > inlet))

View Data Sheet (97570s Closed 94020 Pres/Vac Vent + 94306 Flame Arrester (outlet = inlet))

View Data Sheet (97571o Open 94020 Pres/Vac Vent + 94309 Flame Arrester)

View Data Sheet (97571c Closed 94020 Pres/Vac Vent + 94309 Flame Arrester (outlet > inlet))

View Data Sheet (97571s Closed 94020 Pres/Vac Vent + 94309 Flame Arrester (outlet = inlet))

What are the tank dimensions?*

The physical size of the tank, used for vent sizing.

How to determine? Refer to tank drawings, spec sheet, or direct measurement.

What are the materials of construction?*

The material(s) used for the vent body, seat, and other wetted components.

How to determine? Refer to datasheet, product catalog, or design specification.

If a closed vent is selected, what is the existing back pressure?*

The static back pressure present in the vent system when closed venting is used.

How to determine? Check piping system design or back pressure calculations.

1 - What is the tank capacity?*

The total storage volume of the tank.

How to determine? Refer to tank drawings, nameplate, or specifications.

2 - What is the product flashpoint?*

The lowest temperature at which the product emits ignitable vapors.

How to determine? Refer to product SDS or lab data.

3 - What is the pumping-in rate?*

Maximum rate at which product is added to the tank.

How to determine? Review pump design data or operating procedures.

4 - What is the pumping-out rate?*

Maximum rate at which product is withdrawn from the tank.

How to determine? Review pump discharge specs or process data.

5 - What is the set pressure?*

The pressure at which the vent opens to relieve overpressure.

How to determine? Refer to vent datasheet or calibration setting.

6 - What is the set vacuum?*

The vacuum at which the vent opens to protect the tank from collapse.

How to determine? Refer to tank vacuum rating or vent specification.

7 - What is the maximum relieving pressure?*

The maximum pressure the vent must safely relieve.

How to determine? Refer to API 2000 or engineering design conditions.

8 - What is the maximum relieving vacuum?*

The maximum vacuum level the vent must safely relieve.

How to determine? Refer to process hazard review or tank spec sheet.

9 - Are there additional pressure flow requirements?*

Extra cases needing pressure venting beyond normal sizing.

How to determine? Review process upsets, fire scenarios, or customer specs.

10 - Are there additional vacuum flow requirements?*

Extra cases needing vacuum relief beyond normal sizing.

How to determine? Review pump-out rates or emergency cases.

11 - What is the tank's latitude?*

Geographic latitude for solar load calculations.

How to determine? Use site GPS coordinates.

12 - What is the tank’s insulation reduction factor?*

Factor applied if insulation reduces heat input.

How to determine? Refer to insulation type/thickness and API 2000 guidance.

13 - What is the vapor?*

The chemical stored in the tank.

How to determine? Refer to SDS or process datasheet.

14 - What is the average storage temperature?*

Average temperature of product in the tank.

How to determine? Review operating logs or instrumentation.

Expanda-Seal?*

Whether the vent includes the Expanda-Seal feature, which enhances sealing performance.

Yes

No

How to determine? Confirm by checking tank equipment specifications or vent model features.

Used with Flame Arrester?*

Indicates if the vent is installed in series with a flame arrester.

Yes

No

How to determine? Verify system design, P&IDs, or vent installation details.

Current Date*

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