Sewon Flame Arrestor

Sewon Products

ISO 9001 / 14001 & ATEX Directive 94/9/EC Certified Company For The Environment, Health and Safety

• Flame Arrester and Flame Trap
• Pressure and Vacuum Relief Valve (Breather Valve)
• Emergency Vent
• Gauge Hatch

• Dipping Device
• Inert Gas Blanketing Device
• Sample Cooler

Sampling Cooler

Model SSM

• Closed Yype
• Free Size

Flame Arrester with Flam Trap

Model STA+SFH

• In-Lin Type
• Size 2"~12"

Model STA+SFE

• In-Line Type
• Size 2"~12"

Gauge Hatch Cover

Model SGH

• Fool Operated Type
• Size 4"~10"

Model SGDD

• Dipping Type
• Size 4"~10"

Pressure and Vacuum Relief Valve

Model SBB

• Size 2"~12"
• Set Pressure 22~700mmWC
• Set Vacuum 22~700mmWC

Model SBBS

• Size 2"~12"
• Set Pressure 700~10000mmWC
• Set Vacuum 700~5000mmWC

Model SBBS

• Size 2"~12"
• Set Pressure 22~700mmWC
• Set Vacuum 22~700mmWC

Model SBSF

• Size 2"~12"
• Set Pressure 700~10000mmWC
• Set Vacuum 700~5000mmWC

Model SBE

• Size 2"~12"
• Set Pressure 22~10000mmWC
• Set Vacuum 22~5000mmWC

Model SBL

• Size 2"~12"
• Set Pressure 22~250mmWC
• Set Vacuum 22~100mmWC

Vacuum Relief Valve

Model SBV

• Size 2"~12"
• Set Vacuum 22~5000mmWC

Model SBFV

• Size 2"~12"
• Set Vacuum 22~700mmWC

Model SBY

• Size 1"~2"
• Set Vacuum 22~5000mmWC

Emergency Vent Manhole Cover

Model SEA

• Pressure Relife Type
• Size 16" through 24"
• Set Pressure 22~700mmWC

Model SEAS

• Pressure Relife Type
• Size 16" through 24"
• Set Pressure 22~10000mmWC

• Pressure Relife Type
• Size 16" through 24"
• Set Pressure 22~700mmWC

Model SEV

• Pressure and Vacuum Relife Type
• Size 16" through 24"
• Set Pressure 22~700mmWC
• Set Vacuum 22~700mmWC

Model SEVH

• Pressure and Vacuum Relife Type
• Size 16" through 24"
• Set Pressure 22~700mmWC
• Set Vacuum 22~700mmWC

Model SEC

• Pressure and Vacuum Relife Type
• Size 16" through 24"
• Set Pressure 22~700mmWC
• Set Vacuum 22~700mmWC

Flame Check

Model SFO

• End-of Line Type
• Size 1"~4"

Model SFK

• Size 1/2"~2"

Model SFL

• In Line Type
• Size 3/4"~12"

Pressure and Vacuum Relief Valve with Flame Arrester

Model SBF+SFG

• Size 2" through 12"
• Set Pressure 22~10000mmWC
• Set Vacuum 22~5000mmWC

Model SBB+SFH

• Size 2" through 12"
• Set Pressure 22~10000mmWC
• Set Vacuum 22~5000mmWC

Model SBB+SFG

• Size 2" through 12"
• Set Pressure 22~10000mmWC
• Set Vacuum 22~5000mmWC

Model SBF+SFH

• Size 2" through 12"
• Set Pressure 22~10000mmWC
• Set Vacuum 22~5000mmWC

Deflagration Flame Arrester

Model SFG

• In-Line Type
• Size 1"~20"

Model SFC

• End-of Line Type
• Size 1"~20"

Model SFH

• In-Line Type
• Size 2"~12"

Model SFE

• In-Line Type
• Size 2"~20"

Cargo Tank Venting Device

High Velocity Pressure Vacuum Valve

General Description

• IMO MSC/Circ. 677/1009
• ISO 15364
• Strong Stabillity
• Non-Hammering
• Non-Oscillating
• N.D 65mm ~ 300mm
• JIS, ANSI, DIN etc Flange
• Weight Loaded Type

Sewon High velocity pressure vacuum valve provides automatic control of pressure differentials during cargo loading/unloading, ballasting, or thermal variations and gas freeing purpose on tanks. Se-Won valve is designed to prevent the passage of flame into cargo tanks only if vent outlets on ships fitted with inert gas systems.

Operation
Before loading or unloading, the High velocity pressure/vacuum valve must be test lifted to assure the movable pressure, vacuum disc. The check lift is designed to be self-closing.
Loading

When loading, the pressure unit of the Se-Won High velocity pressure/ vacuum valve is in operation, Consequently, it must be check lifted by turning the check lift handle from its vertical position to the upper position and automatically back again, before the loading is commenced.

Unloading
When unloading, the vacuum unit may enter operation. Consequently, it must be check lifted by pushing the vacuum check lift under the vacuum unit and automatically back again to the initial position.