NOMINAL SIZE

- 1", 2", 3",4", 6", 8", 10" and 12"
- 14" through 20" sizes are available upon request.

CONNECTIONS

- ASME B16.5 Class 150 Flange
- KS/JIS10K Flange

SEWON free vents are used on the top of storage tank containing
non-flammable liquid or on the end of vent pipe. this model is fitted
a weather hood on the vent nozzle, it enable to reduce the weight
compare with goose neck type vent.

Available in carbon steel, 304 S.S, 316 S.S and other special materials
compact design and simple structurer. Available in size 1”to 20” Fitted
stainless steel bird screen May be combined with flame arrester for
flammable fluid storage tanks Drilling conforming to ASME B16.5
for class 150 flanges, or KS/JIS 10K flanges.
Other standards are available on customer? request.
Consult our factory for special application or special design.