Sewon Q&TECH
Product
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Emergency Vent Cover
For your safety, choose our products.
The SEWON emergency vent cover is designed to provide emergency relief capacity beyond that furnished by the normal operating pressure & vacuum
relief valve on the tank.
These large relief cover which only open in emergencies are used to protect tanks against rupture or explosion that could result from thermal pressure
caused by fire surrounding a tank, etc.
It remains closed tightly at all internal pressure below setting pressure (and above the vacuum setting). These cover also provide easy access into the tank.
Size range | 18", 20" and 24" |
---|---|
Standard connection | API roof manhole drilled flange to match API 650, or ANSI 150LB |
Standard material | Stainless steel body & Stainless steel cover Aluminum body & Stainless steel cover Carbon steel body & Stainless steel cover |
Max. working pressure | according to API 2000 |
Setting pressure | according to API 2000 |
How to order
MODEL | INLET SIZE | MATERIALS | FLANGE DRILLING | OPTION |
---|---|---|---|---|
Body / Pallet |
||||
SEA SEB SEV SEVH SEAS |
16 : 16" 18 : 18" 20 : 20" 24 : 24" SS : Special |
C : Carbon Steel 4 : 304 S.S 5 : 304L S.S 6 : 316 S.S 7 : 316L S.S A : Aluminum S : Special Material |
PO : API 650 12th Edition PN : API 650 12th Edition AR : ANSI Class 150 RF AF : ANSI Class 150 FF KR : KS/JIS 10K RF KF : KS/JIS 10K FF 5F : KS/JIS 5K FF 5R : KS/JIS 5K RF NO : NO Drilling SS : Special |
O : No Option 4 : 304SS weight 6 : 316SS weight S : Special |
Example
Means a 24" model SEA emergency vent with carbon steel body, 304 S.S pallet,
12th flange drilling and no other option.