(大排量)进口双阀座蒸汽疏水阀 主要性能 Main performance

双阀座大排量蒸汽疏水阀在冷凝水轻或重的负荷下工作都十分有效率，它们的排水量持续且高效，保证最大的热传递。此类阀门是带自动温度控制排水装置的最好选择  RETZ  Double seat large displacement steam traps work very efficiently under light or heavy load of condensed water. Their drainage capacity is continuous and efficient, ensuring maximum heat transfer. This type of valve is the best choice with automatic temperature control drainage device.

设计标准:ISO6552；EN26704  Design standard: iso6552; EN26704

连接长度∶EN26554；GB/T12250 Connection length: EN26554; GB/T12250

试验与检验∶EN26948；GB/T12251 Test and inspection: en26948; GB/T12251

规格尺寸：1-1/4-6"(法兰)  Specification and size: 1-1/4-6"(flange, internal thread RC, NPT)

排量：5000kg/h~30000kg/h 排量5000kg/h~30000kg/h

公称压力：16-40Bar Nominal pressure: 16-40bar

使用压差范围:0.1-32Bar Operating pressure difference range: 0.1-32bar

介质温度：≤300℃  Medium temperature: ≤ 300 ℃

性能曲线图 Performance curves

上图中的冷凝水排量是基于饱和温度下的，在蒸汽设备刚开机状态时冷凝水为冷态，疏水阀内部热静力排空气阀打开可额外增加冷凝水的排量。

GFT43、GFT44(DN32-DN100)  高排量型 压差bar（×100=KPa）

GFT43、GFT44(DN80-DN125)  高排量型 压差bar（×100=KPa）

特点∶ Performance characteristics

平衡双阀座设计，与同类的疏水阀相比体积小排量大，在需要大排量排除凝结水的工况，更能充分显示其优越的性能  RETZ The balanced double valve seat design, compared with similar drain valves, is small in volume and large in displacement, and can fully display its superior performance under the condition that large displacement is required to discharge condensate

阀体内设防冲蚀挡板，耐水锤震动 Anti erosion baffle is set in the valve body to resist water hammer vibration

背压率大于90%，便于凝结水回收 The back pressure rate is greater than 90%, which is convenient for condensate recovery

内置自动排空气装置，启动迅速，无空气气堵，排除不可凝结气体性能好，可在线更换 Built in automatic air exhaust device, quick start, no air blockage, good performance of removing non condensable gas, and online replacement

排水阀座孔始终在凝结水水位以下，形成水封，工作时无新鲜蒸汽泄漏 The drain valve seat hole is always below the condensate water level, forming a water seal, and there is no fresh steam leakage during operation

(大排量)进口双阀座蒸汽疏水阀 主要零件材料 Main parts and materials

1、阀体 GGG40/A216 WCB/A351 CF8 

2、阀盖GGG40/A216 WCB/A351CF8 

3、阀盖垫片A240 304+石墨

4、阀盖螺栓A193 B7 

5、浮球A240 304 

6、浮球连杆结构ASTM CF8 

7、阀座结构主体ASTM CF8 

8、上阀芯 A276 430

9、下阀芯 A276 430

10、副阀座ASTM CF8 

11、双阀座连杆A240 304 

12、阀座螺栓A193 B8

13、排空气装置组件 A、膜盒 A240 304  B、弹簧17-4PH  C、膜盒支撑片A240 304  D、膜盒阀座 A276 430  E、膜盒固定罩A240 304 

14、挡板 A240 304

安装示意图 Installation diagram

请按阀体上流向箭头所示安装，注意浮球臂处于水平位置以确保其能垂直升降 Please install as shown by the flow arrow on the valve body. Note that the float arm is in the horizontal position to ensure that it can rise and fall vertically