类型 
Type

公称压力PN Mpa

实验压力PS(Mpa)_Test pressure

工作压力(Mpa) Working pressure

工作温度(OC) Working temps.

适用介质Applicable medium

壳体 
Shell

密封(液)Seal

密封(气)Seal

J49H-320

32.0

48.0

35.2

0.6

32.0

P≤540OC

液化石油气水，酸，蒸汽，油品等 Petroleum gas Water，As，Steam，Oil，etc.

J49H-320P

32.0

48.0

35.2

0.6

32.0

C≤425 OC

零件称号 
Part name

阀杆 
Stem

阀体 
Body

阀底座 
Base

填料 
Packing

填料阀盖 Packing
bonnet

手轮Handwheel

J49H-320-DN3

碳钢 
Carbon steel

铬不锈钢 
Cr. Stainless steel

聚四氟乙稀，柔性石墨 
PTFE，Soft graphite

碳钢Carbon steel

优质碳钢 
High grade carbon steel

J49H-320P-DN6

铬镍不锈钢 
Cr. Ni Stainless stee

铬不锈钢 
Cr. Stainless steel

铬镍不锈钢 
Cr. Ni Stainless steel

不锈钢Stainless steel