公称压力
PN/MPa Nominal pressure |
试验压力/MPa Seal test
|
||
壳体强度试验
Shellslrenght test |
上密封试验
Back Seal test |
密封试验
Seat test |
|
2.5
|
3.8
|
2.8
|
2.8
|
4.O
|
6.0
|
4.4
|
4.4
|
6.4
|
9.6
|
70
|
7.O
|
1O.O
|
15O
|
11.O
|
11.O
|
产品类型
Product calssification |
适用介质
Applicable medium |
适用温度/℃
Applicable temperature |
NKZ61H
NKZ64H H-C型 NKZ964H H-C型 NKZ961H |
水、蒸汽、空气
Water,Steam,Air |
≤425
|
NKZ61H
NKZ64H Y-I型 NKZ964H Y-I型 NKZ961H |
水、蒸汽、空气
Water,Steam,Air |
≤550
|
零件名称
Part name |
阀体、阀盖
Body Bonnet |
阀杆
Valve stem |
闸板
Wedge gate |
密封面
Sealing face |
阀杆螺母
Valve Yoke nut |
填料
Parking |
紧固件
Fastener |
NKZ61H
NKZ64H H-C型 NKZ964H H-C型 NKZ961H |
WCB
|
2Crl3
|
25
|
H:合金钢
H:alloysteel |
铝青铜
Albronze |
膨胀复合石墨
Expanding compound graphite |
优质碳钢
High-grade carbon steel |
NKZ61H
NKZ64H Y-I型 NKZ964H Y-I型 NKZ961H |
铬钼钢
Cr.Mo steel |
20CrlMo1VA
|
铬钼钢
Cr.Mo steel |
Y:硬质合金
Y:carbide alloy |
铬钼钢
Cr.Mo steel |