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Emergency Vent - API 7TH Edition
WinSize Product Application Sheet
Emergency Vent - API 7TH Edition
"
*
" indicates required fields
Name
*
Company
*
Phone Number
*
Email
*
Country / State
*
City
*
Address
*
Zip Code
*
What is the Shand & Jurs model number?
*
Identifies the specific emergency vent model being used.
94065 FRP Emergency Vent & Manhole Cover
94200 Emergency Relief Vent/Manhole Cover
94201 Emergency Relief Vent/Manhole Cover with Expanda-Seal
94210 Emergency Relief Vent/Hinged Style
94221 Emergency Vent & Manhole Cover
94225 Emergency Vent & Manhole Cover (Spring Loaded Vacuum)
94510 Magna Vent, Magnetically Sealed
94580 Combo Flame Arrester and Magna Emergency Vent
How to determine?
Refer to equipment datasheet, purchase order, or nameplate on the vent or product selection guide and configurator tool.
View Data Sheet (94065 FRP Emergency Vent & Manhole Cover)
View Data Sheet (94200 Emergency Relief Vent/Manhole Cover)
View Data Sheet (94201 Emergency Relief Vent/Manhole Cover with Expanda-Seal)
View Data Sheet (94210 Emergency Relief Vent/Hinged Style)
View Data Sheet (94221 Emergency Vent & Manhole Cover)
View Data Sheet (94225 Emergency Vent & Manhole Cover (Spring Loaded Vacuum)
View Data Sheet (94510 Magna Vent, Magnetically Sealed)
View Data Sheet (94580 Combo Flame Arrester and Magna Emergency Vent)
What are the materials of construction?
*
The material(s) used for the vent body, seat, and other wetted components.
316SS
304SS
Aluminum
Cast Iron
Cast Steel
Ductile Iron
How to determine?
Check datasheet, material specifications, or product catalog.
1 - What type of tank do you have?
*
Identifies whether the tank is fixed roof, floating roof, cone roof, etc.
Horizontal
Vertical
Spherical
How to determine?
Refer to engineering drawings, tank datasheet, or site inspection.
Diameter
*
*
Feet
Meters
Height
*
*
Feet
Meters
2 - What is the set pressure?
*
The pressure at which the emergency vent opens to relieve excess pressure.
Inches of Water
PSIG
Ounces Per Square Inch
Pascals
Kilopascals
Millibars
How to determine?
Confirm from design documents or vent specifications.
3 - What is the maximum relieving pressure?
*
The maximum pressure that can be safely relieved through the vent.
Inches of Water
PSIG
Ounces Per Square Inch
Pascals
Kilopascals
Millibars
How to determine?
Refer to API 2000 sizing requirements or engineering design basis.
4 - What is the set vacuum (Only for 94221 and 94225)?
The vacuum condition at which the vent opens to protect the tank from collapse.
Inches of Water
PSIG
Ounces Per Square Inch
Pascals
Kilopascals
Millibars
How to determine?
Check tank design vacuum rating and vent specifications.
5 - Enter credits for normal venting (SCFH)
*
Credit given to normal vent capacity that contributes to total venting requirements.
How to determine?
Use SCFH values from vent datasheet or engineering calculations.
6 - What is the tank operating pressure?
*
The selected operating pressure, which determines the flow calculation per API 2000.
(*Selection of Operating Pressure Determines Flow Calculation*)
1-15 PSI (7-103kPa)
Equal to or Below 1 PSI (7kPa)
How to determine?
Refer to tank operating guidelines or process control documentation.
7 - What is the environmental factor? (Bare Metal = 1)
*
A correction factor accounting for surface conditions, corrosion, or coatings.
How to determine?
Use API 2000 guidance; if unknown, enter 1.
Product Chemical Properties
8 - What is the product?
*
The chemical stored in the tank requiring venting protection.
How to determine?
Refer to process records, product datasheet, or SDS.
9 - What is the latent heat of vaporization?
*
The energy required to vaporize the liquid product.
How to determine?
Refer to product SDS or chemical property tables.
10 - What is the absolute temperature of the relieving vapor (Boiling Point in Degrees Rankine)?
*
Temperature of the vapor at relieving conditions, expressed in degrees Rankine.
How to determine?
Calculate from operating data or use product thermodynamic tables.
11 - What is the relative molecular mass of the vapor?
*
The molecular weight of the vapor, used in vent sizing calculations.
How to determine?
Refer to product SDS or chemical property database.
Current Date
*
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