上海意威进口阀门有限公司

焊接式真空闸阀详细介绍

上海意威阀门专业生产焊接真空闸阀，不锈钢焊接式真空闸阀，法兰焊接式真空闸阀

真空闸阀和真空截止阀是同属一个类型的阀门，区别在它的关闭件是个阀体，阀体绕阀体中心线作旋转来达到开启、关闭的一种阀门。 闸阀在管路中主要用来做切断、分配和改变介质的流动方向。真空截止阀的工作原理是靠旋转阀恋来使阀门畅通或闭塞。闸阀开关轻便，体积小，可以做成很大口径，密封可靠，结构 简单，维修方便，密封面与球面常在闭合状态，不易被介质冲蚀，在各行业得到广泛的应用。

NKZ61H/Z64H焊接式真空闸阀

主要性能规范 Chief property and specification

·焊接式真空闸阀-试验压力 Test pressure

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 test2.53.82.82.84.O6.04.44.46.49.6707.O1O.O15O11.O11.O

·焊接式真空闸阀-使用范围 Applicable

产品类型
Product
calssification适用介质
Applicable medium适用温度/℃
Applicable temperatureNKZ61H
NKZ64H H-C型
NKZ964H H-C型
NKZ961H水、蒸汽、空气
Water，Steam，Air≤425NKZ61H
NKZ64H Y-I型
NKZ964H Y-I型
NKZ961H水、蒸汽、空气
Water，Steam，Air≤550

·焊接式真空闸阀-主要零部件材料 Materials for main parts

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
FastenerNKZ61H
NKZ64H H-C型
NKZ964H H-C型
NKZ961HWCB2Crl325H：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 steelNKZ61H
NKZ64H Y-I型
NKZ964H Y-I型
NKZ961H铬钼钢
Cr.Mo steel20CrlMo1VA铬钼钢
Cr.Mo steelY：硬质合金
Y：carbide alloy铬钼钢
Cr.Mo steel

·焊接式真空闸阀-主要尺寸及重量 Main dimensions and weight

公称通径
DN/mm
Nominal
diamecer公称压力
PN/MPa
Nominal
pressure主要外形尺寸和连接尺寸/mm
Main external andconnecting dimensions重量/kg
Weight

L

H

D

D0

∝

W

50

2.5

250345644937^o30‘2502465270395826637^o30‘2503680280425957837^o30‘3005210030051O11710037^o30‘3006712532557014412537^o30‘3509515035072517215137^o30‘35013520040082022320137^o30‘400210250 450 890 278 253 37^o30‘ 450 300 300500107033030337^o30‘550395350550132038235137^o30‘650530400600145043239837^o30‘750685450650156048445037^o30‘750906500700172053549837^o30‘8501130600809188063860037^o30‘9001387700900208373870037^o30‘95018948001OOO259084080037^o30‘10002621504.0250345644837^o30‘3003065270395826637^o30‘3004280280425957837^o30‘3505710030051O1171OO37^o30‘3507512532557014412537^o30‘40010515035072517215137^o30‘40015020040082022319937^o30‘45023225045089027825137^o30‘550330300500107033030137^o30‘650430350550132038234937^o30‘750570400600145043239637^o30‘850730506.4250350644837^o30‘3003465280405826537^o30‘3004880310435957637^o30‘350651003505151179837^o30‘4008112540058015012837^o30‘40011215045073517214937^o30‘45016120055083522319737^o30‘55025525065090527824537^o30‘650390300750108033029337^o30‘750515350850134038234137^o30‘800695400950146043238637^o30‘900885501O.0250350644837^o30‘3003765280405826337^o30‘3005280310435957437^o30‘350701003505151179737^o30‘4008612540058015012437^o30‘40011815045073517214437^o30‘45016820055083522318937^o30‘55026325065090527823537^o30‘650405300750108033