Detail HIGH VELOCITY PRESSURE VACUUM RELIEF VALVE - TOP SAFE
HIGH VELOCITY PRESSURE VACUUM RELIEF VALVE ( MARINE STANDARD)
MODEL : SUPER - ISO
BRAND : TOP SAFE
Description :
High velocity vent and vacuum relief valve is designed to protect marine vessel systems, including cargo tanks, that may be subject to gas/ vapour pressure or vacuum outside the design parameters of the system / tank.
This valve is also designed for devices to prevent the passage of flame into cargo tanks in tankers and to relieve excessive over pressure or under vacuum of cargo tanks during cargo loading, discharging, ballasting and thermal variations
Benefit :
Protectable MESG 0.65mm chemical gases
Optional gas free cover
Safe-guard case from corrosion
Perfect air cushion damper
Effective outside setting adjustable system
Full stroke check lifting
Clearly visible vacuum disc operation
Complete self-drain & non-accumulation structure inside
Relative Rules and Requirements :
IMO MSC/ Circ.677
Revised standards for the design, testing and locating of devices to prevent the passage of flame into cargo tankers
IMO MSC/ Circ.1009
Amendments to the revised standards for the design, testing and locating of devices to prevent the passage of flame into cargo tanks in tankers( MSC/ Circ.677) International Standard 15364 Ships and marine technology-pressure/ vacuum valves for cargo tanks
IMO MSC/ Circ.450 Rev.1
Revised factors to be taken into consideration when designing cargo tank venting and gas-freeing arrangement
IMO MSC/ Circ.585
Standard for Vapor Emission Control System
IMO MSC/ Circ.731
Revised factors to be taken into consideration when designing cargo tank venting and Gas-freeing arrangement
API 2000 - Flow test procedure
EN 12874 : 2001
Flame arresters-Performance requirements, test methods and limits for use.
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