1.The chamber of packing of the valve's bonnet is of a water-sealed structure,which,when the water of 0.6-1MPa pressure goes into the mouthpiec,can make the system isolated from air to ensure the system with a good leak proofness
2.Model S/Z series use dual-gate dual-direction elastic sealings.being flesible and fast to open and close,reliable sesling
3.Simple,compact and reaso able structur,easy to overhaul and long duration
4.When to be used as the open&close device on pipelines,it must be in fully-opened or fully-closed state and unallowed to be used for flow adjustment
5.Two ways of connection:by flange and welding,two driving ways:manually and electrically
6.Suitable to act as the open & close device for the pipelines with the working medium of water,steam,oil goods and non-corrosive gas,especially for the vacuum condensation system of the steam tufbine in steam power palnts.
主要性能規(guī)范Chief property and specification
公稱壓力PN(MPa)Nominal pressure
公稱壓力PN(MPa)Nominal pressure
殼體強(qiáng)度試驗(yàn)(MPa)Shell strength test
1.0
1.6
2.5
4.0
6.4
10.0
密封試驗(yàn)(MPa)Seal test
1.5
2.4
3.8
6.0
9.6
15.0
上密封試驗(yàn)(MPa)Back seal test
1.1
1.8
2.8
4.4
7.0
11.0
氣密封試驗(yàn)Leak-proofness test
1.1
1.8
2.8
4.4
7.0
11.0
使用范圍Applicable
產(chǎn)品類型Produect classification
適用溫度℃Working remperature
適用介質(zhì)Suitable medium
碳鋼型(C)Carbon steel
≤425
水、蒸汽、油品、非腐蝕性氣體Water.steam.oil goods.non-corrosive gas
合金型(I)Alloy steel
≤540
主要零件材料Material for main parts
產(chǎn)品類型Product type
零件名稱Part name
閥體、閥蓋、支架Body.bonnet.yoke
閥桿stem
閘板、閥瓣、密封面Walge gate disc seal face
閥座密封面Seatring seal face
閥桿螺母Yoke nut
填料Packing
碳鋼型(C)Carbon steel
WCB
1Cr13或2Cr13
Cr13型不銹鋼或硬質(zhì)合金Sainless steel or carbide alloy
不銹鋼Stainless steel
鋁青銅Al bronze
柔性石墨Flexible graphite
合金鋼(I)Alloy steel
WCB Cr5Mol
20Cr1Mo1VA
鈷基合金Co-based alloy
硬質(zhì)合金Carbide alloy
鋁青銅Al bronze
柔性石墨Flexible graphite
主要尺寸及重量Main dimensions and weight
DS/Z64H- 16C、25
公稱通徑DN(mm)Nominal diameter
L
α
H
Do
PN1.6(MPa)
PN2.5(MPa)
D
D1
重量(kg)Weight
D
D1
重量(kg)Weight
50
250
37°30′
334
250
58
50
19
64
49
23
65
270
37°30′
439
250
75
65
32
82
67
35
80
280
37°30′
495
300
91
79
34
95
77
37
100
300
37°30′
575
350
110
97
44
117
101
49
125
325
37°30′
587
350
136
121
75
144
126
78
150
350
37°30′
607
350
163
146
82
172
158
105
200
400
37°30′
740
400
223
202
158
223
202
160
250
450
37°30′
863
400
278
254
184
278
254
188
300
500
37°30′
990
400
330
305
245
330
305
249
350
550
37°30′
1137
500
382
352
492
382
352
497
400
600
37°30′
1523
500
432
399
588
432
399
592
450
650
37°30′
1618
600
485
451
683
485
451
688
500
700
37°30′
1657
600
535
501
846
535
499
853
600
800
37°30′
1746
700
636
601
1013
636
599
1020
注:PN1.6(16)閥門(mén)允許作為PN1.0(10)壓力級(jí)選用 Annotation:PN1.6(16) valve is permit be used as PN1.0(10).
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