一、进口泄压持压阀产品详情
进口泄压持压阀主要用于消防或其他供水系统中,属于消防水力控制阀,以防止系统超压或维持消防供水系统的压力。消防泵关闭后还可以特性,使比重较大、直径较大的悬浮颗粒不会进入控制系统,确保系统循环畅通无阻,使阀门能安全可靠地运行。
二、进口泄压持压阀技术参数
公称通径:DN50-DN500 | 阀体材质:球墨铸铁、铸钢、不锈钢、铜 |
公称压力:1.0Mpa-2.5Mpa | 阀盖材质:球墨铸铁、铸钢、不锈钢、铜 |
适用温度:0℃-95℃ | 弹簧材质:不锈钢304 |
连接方式:法兰连接 | 膜片材质:三元乙丙EPDM |
适用介质:水、非腐蚀性液体 | 导阀配件:不锈钢、黄铜 |
最小压差:0.1Mpa | 表面处理:环氧树脂涂层 |
三、进口泄压持压阀工作原理
可将给水管中超过引导阀安全设定值之压力释放,并维持管中压力于一安全设定值以下,以防止管中高压或突压(SURGE)毁损管线或设备。可用于高层大楼消防测试循环系统之泄压用,以防止水压过高造成系统危险。持压阀:可维持主阀上游供水压力于某一设定值以上,以保障主阀上游供水区之压力。
四、进口泄压持压阀性能特点
1、采用全通径流线型设计,流体阻力小,流量大,抗气蚀能力强;
2、密封圈采用国际先进的星型密封圈结构,不脱落,不翘起,弹性密封。由一个具有低摩擦、定位精准的阀杆导向,使密封性能可靠,寿命更长;
3、可拆卸不锈钢304阀座,耐腐蚀,耐冲刷,密封性能好;
4、阀体采用高强度球墨铸铁精密铸造,内外喷涂无毒环氧树脂;
5、膜片由尼龙增强橡胶制造,立体网纹、弹性好、耐压高,使用寿命长久;
6、系列产品采用不锈钢外管路,耐腐蚀,强度更高。
1、 Details of imported pressure relief valve
The imported pressure relief and pressure holding valve is mainly used in fire fighting or other water supply systems. It belongs to fire hydraulic control valve to prevent system overpressure or maintain the pressure of fire water supply system. After the fire pump is shut down, it can also make the suspended particles with larger proportion and larger diameter not enter the control system, ensure the smooth circulation of the system, and make the valve operate safely and reliably.
2、 Technical parameters of inlet pressure relief valve
Nominal diameter: dn50-dn500 valve body material: ductile iron, cast steel, stainless steel, copper
Nominal pressure: 1.0mpa-2.5mpa valve cover material: ductile iron, cast steel, stainless steel, copper
Applicable temperature: 0 ℃ - 95 ℃. Spring material: stainless steel 304
Connection mode: flange connection; diaphragm material: EPDM
Applicable medium: water, non corrosive liquid guide valve accessories: stainless steel, brass
Minimum pressure difference: 0.1Mpa surface treatment: epoxy coating