焊接式真空閘閥詳細(xì)介紹

上海意威閥門專業(yè)生產(chǎn)焊接真空閘閥，不銹鋼焊接式真空閘閥，法蘭焊接式真空閘閥

真空閘閥和真空截止閥是同屬一個(gè)類型的閥門，區(qū)別在它的關(guān)閉件是個(gè)閥體，閥體繞閥體中心線作旋轉(zhuǎn)來達(dá)到開啟、關(guān)閉的一種閥門。 閘閥在管路中主要用來做切斷、分配和改變介質(zhì)的流動(dòng)方向。真空截止閥的工作原理是靠旋轉(zhuǎn)閥戀來使閥門暢通或閉塞。閘閥開關(guān)輕便，體積小，可以做成很大口徑，密封可靠，結(jié)構(gòu) 簡(jiǎn)單，維修方便，密封面與球面常在閉合狀態(tài)，不易被介質(zhì)沖蝕，在各行業(yè)得到廣泛的應(yīng)用。

NKZ61H/Z64H焊接式真空閘閥

主要性能規(guī)范 Chief property and specification

·焊接式真空閘閥-試驗(yàn)壓力 Test pressure

公稱壓力
PN/MPa
Nominal
pressure試驗(yàn)壓力/MPa Seal test殼體強(qiáng)度試驗(yàn)
Shellslrenght test上密封試驗(yàn)
Back Seal test密封試驗(yàn)
Seat test2.53.82.82.84.O6.04.44.46.49.6707.O1O.O15O11.O11.O

·焊接式真空閘閥-使用范圍 Applicable

產(chǎn)品類型
Product
calssification適用介質(zhì)
Applicable medium適用溫度/℃
Applicable temperatureNKZ61H
NKZ64H H-C型
NKZ964H H-C型
NKZ961H水、蒸汽、空氣
Water，Steam，Air≤425NKZ61H
NKZ64H Y-I型
NKZ964H Y-I型
NKZ961H水、蒸汽、空氣
Water，Steam，Air≤550

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

零件名稱
Part name閥體、閥蓋
Body Bonnet閥桿
Valve stem閘板
Wedge gate密封面
Sealing face閥桿螺母
Valve Yoke nut填料
Parking緊固件
FastenerNKZ61H
NKZ64H H-C型
NKZ964H H-C型
NKZ961HWCB2Crl325H：合金鋼
H：alloysteel鋁青銅
Albronze膨脹復(fù)合石墨
Expanding
compound
graphite優(yōu)質(zhì)碳鋼
High-grade
carbon steelNKZ61H
NKZ64H Y-I型
NKZ964H Y-I型
NKZ961H鉻鉬鋼
Cr.Mo steel20CrlMo1VA鉻鉬鋼
Cr.Mo steelY：硬質(zhì)合金
Y：carbide alloy鉻鉬鋼
Cr.Mo steel

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

公稱通徑
DN/mm
Nominal
diamecer公稱壓力
PN/MPa
Nominal
pressure主要外形尺寸和連接尺寸/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