公称压力
PN/MPa Nominal pressure |
试验压力/MPa Seal test
|
||
壳体强度试验
Shell strength |
上密封试验
Back seal test |
密封试验
Seat test |
|
1.0
|
1.5
|
1.1
|
1.1
|
1.6
|
2.4
|
1.8
|
1.8
|
2.5
|
3.8
|
2.8
|
2.8
|
4.0
|
6.O
|
4.4
|
4.4
|
6.4
|
8.6
|
7.O
|
7.0
|
1O.O
|
15.O
|
11.O
|
11.O
|
产品类型
Product type |
适用介质
Applicable medium |
适用温度/℃
Applicable temperature |
NKZ41H
NKZ44H NKZ944H-C型 NKZ941H |
水、蒸汽、空气
Water,Steam,Air |
≤425
|
NKZ41H(Y)
NKZ44H(Y)-I型 NKZ944H(Y)-I型 NKZ941H(Y) |
水、蒸汽、空气
Water,Steam,Air |
≤550
|
零件名称
Part name |
阀体、阀盖
Body Bonnet |
阀杆
Stem |
闸板
Wedge gate |
密封面
Sealing face |
阀杆螺母
Yokenut |
填料
Parking |
紧固件
Fastener |
NKZ44H
NKZ41H-C型 NKZ944H-C型 NKZ941H |
WCB
|
2Crl3
|
25
|
H:合金钢
H:alloy steel |
铝青铜
Albronze |
膨胀复合石墨
Expanding comDound graphite |
优质碳钢
High-grade carbon steel |
NKZ44
NKZ41Y-I型 NKZ944-I型 NKZ941 |
铬钼钢
Cr.Mo steel |
20CrlMo1VA
38CrMoAlA |
铬钼钢
Cr.Mo steel |
Y:硬质合金
Y:carbide alloy |
铬钼钢
Cr.Mo steel |