高速透气阀(P／V阀)-南通亚泰

　　产品介绍 Prouduct introduction

　　高速透气阀用于液货船密封舱，在装载、航行、压载和卸载时，不用任何手动方式，自动控制液货舱内的压力，防止货油舱超压或真空。此外，还可在甲板上提供防火、防爆的自动保护。货油舱出现的压力或真空被施加在出气或吸气阀盘上，超过设定压力时，正压阀能自动打开排气，负压阀自动打开吸气，当舱内外压差被减少到原设定水平时，阀盘将瞬间自动复位。负压阀工作时（即吸气时），如果舱室外面发生火花，火花将在负压阀的防火网上熄灭；正压阀工作时，如果舱外有火花，火花将被正压阀喷出的高速气流吹离或吹灭。

　　The high velocity valve is installed on the liquid cargo ship and provides automatic control of pressure differential during loading,voyage,ballasting and de-ballasting without manual operation.Furthermore,the high velocity valve provides automatically fire proof and explosions proof on the deck.When the pressure of the cargo tank imposed on the disc exceeds the preset level,the pressure/vacuum valve will automatically open to exhaust or suction gas.When the vacuum valve is working,the flames out of the tank will be quenched in the flame trap.When the pressure valve works,the flame will be quenched by the high velocity airflow from the pressure valve.

技术参数 Parameters

型号 Type	设计开启压力 KPa Designed OpengingPressure		额定工作压力 KPa Rated Working Pressure		流速 Velocity m/s	流量 M3/h Flow Rate
	正压阀 Pressure value	负压阀 Vacuum value	正压阀 Pressure value	负压阀 Vacuum value		正压阀 Pressure value	负压阀 Vacuum value
DN-50	14-21	-3.5	21	-7	≥30	800	400
DN-80						1000	700
DN-100						1200	800
DN-125						1600	1300
DN-150						2000	1300
DN-200						2300	2500

　　装配法兰标准：GB2506-2005
　　操作条件：
　　压力设定值：14KPa-21KPa
　　真空设定值：-3.5KPa
　　Flange Standard:GB2506-2005
　　Service Condition:
　　Setting Pressure:14KPa-21KPa
　　Setting Vacuum:-3.5KPa
　　执行标准：ISO 15364-2007《船舶与海上技术-货油轮压力/真空阀》
　　MSC/C派对。677《阻止火焰进入油船液货舱的装置设计、试验及安装的修订标准》
　　MSC.1/Circ.1324《关于化学品船阻止火焰进入液货舱的装置设计、试验及安装要求》
　　Standard:ISO 15364-2007 Ships and Marine Technology-Pressure/Vaccum Valves for Cargo Tanks.
　　MSC/circ.677 Revised Standards for the Design,Testing and Locating of Devices to Prevent the Passage of Flame into the Cargo Tankers.
　　MSC.1/Circ.1324 Amendments to the revised standards for the design,testing and location of devices to prevent the pessage of flame into cargo tank in tankers.