产品型号 Product type

零件名称 
Accessory name

零件材料 
Accessory material

Q44M-40DN25 
Q41F-40DN25

阀体、阀盖 
body,Bonnet

WCB

球体 Ball

1Cr18Ni9Ti

阀杆 Stem

2Cr13

密封圈 Sealing ring

增强聚四氟乙烯 RPTFE

填料 Stuffing

V型聚四氟乙烯 V-shaped PTFE

公称压力 PN(MPa)
Nominal pressure

壳体 Shell

高压液密封闭
High-pressure liquid sealing

低压气密封
Low-pressure hermetic sealing

4.0

6.0

4.4

0.6

适用温度 
Applicable temperture

≤150℃

氨水等 Liquid ammonia, etc.