POPDISC Environment & Tank Protection Device

Pressure / Vacuum Relief Valve


Size : 2" ~ 12"

Mat’l : AL, C.S, SUS

Pressure setting : 22 ~ 10,000 mmH2O 

Vacuum setting : 22 ~ 8,400 mmH2O



MODEL : WB12 pressure & vacuum
MODEL : WB15 pressure & vacuum




MODEL : WB10 pressure only
MODEL : WB13 pressure only




MODEL : WB11 vacuum only
MODEL : WB14 vacuum only

Flame Arrester


Size : 1" ~ 60" 

Mat’l : AL, C.S, SUS



MODEL : WF21 vertical in-line type
MODEL : WF23 horizontal in-line type




MODEL : WF22 end-line type

GAUGE HATCH


Size : 4" ~ 12" 

Mat’l : AL, C.S, SUS



MODEL : WG40 lock down type
MODEL : WG41 self closing type

Emergency Vent Cover


Size : 16", 20" 24"

Mat’l : AL, C.S, SUS

Pressure setting : 55 ~ 10,000 mmH2O 

Vacuum setting : 22 ~ 350 mmH2O



MODEL : WE30A pressure only
MODEL : WE31A pressure & vacuum




MODEL : WE30B pressure only

N2 Blanketing System




MODEL : WNBS

range : 10mmW.C~10psig 

mat’l : SUS

MODEL : WNRS

range : 10mmW.C~10psig

mat’l : SUS

Special Product




MODEL : WBD70 Liquid seal type

mat’l : AL, C.S, SUS

MODEL : WP06 pilot operating valve

mat’l : C.S, SUS





MODEL : WB12AJ steam jacket type

mat’l : C.S, SUS

MODEL : WF21J steam jacket type

mat’l : C.S, SUS





MODEL : WC511 oat check valve

size : 3" ~ 8"

side mounting type 

mat’l : C.S, SUS

MODEL : WC512 oat check valve

size : 3" ~ 8"

bottom mounting type 

mat’l : C.S, SUS