Overview of NKJ61H vacuum globe valve: The main body of this series of valves adopts casting and forging structure, with parallel double sealing pairs and semi-forced two-way sealing. The sealing surface moves in place and the wedge block moves step by step to achieve zero leakage. The sealing surface has low friction, easy opening and closing, and automatic compensation for the wear of the sealing surface.
Item NO.:
XUVAL77-86Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
SilveryMOQ:
10Welded vacuum globe valve
The structure is simple, compact, convenient for maintenance and long service life. The valve cover packing chamber is equipped with a vacuum sealing structure, which has a self-expanding compression effect, and the seal is sealed with a high-strength expansion material, so that the system is completely isolated from the atmosphere and has a good system air tightness. This series of valve connection forms are divided into flange and welding, and the driving methods are manual and electric.
The valve is suitable for pipelines whose working temperature is ≤425℃ and ≤550℃, and the working medium is water, steam or air, as an opening and closing device; it is especially suitable for steam turbine condensation and vacuum negative pressure systems in thermal power plants, and plays a role of vacuum isolation and sealing.
Vacuum globe valve model: NKJ61H
Vacuum golbe valve Nominal diameter: 15MM-400MM
Working pressure of vacuum globe valve: 1.6MPa -6.4MPa
Vacuum globe valve connection method: welding connection
Vacuum globe valve form: manual
Vacuum globe valve Main function: as a switch
Vacuum golbe valve Use medium: corrosion-resistant medium
Vacuum globe valve Material: WCB standard carbon steel stainless steel
Vacuum globe valve standard: Ministry of Machinery standard or customized non-standard
NKJ61H vacuum globe valve valve structure type:
Product type
Shell strength test/MPa
Upper sealing test/MPa
Seal test/MPa
Applicable medium
Applicable temperature/℃
NKJ61H-40
6.0
4.4
4.4
Water, steam, air
≤425
NKJ61H-64
96
7.0
7.0
NKJ61H-100
15.0
11.0
11.0
NKJ61Y-40I
6.0
4.4
4.4
Water, steam, air
≤550
NKJ61Y-64I
9.6
7.0
7.0
NKJ61Y-100I
15.0
11.0
11.0
Material of main parts of NKJ61H vacuum globe valve:
Part name
Body Bonnet
Stem
Disc
Sealing surface
Stem nut
Filler
Fastener
NKJ61H-C type
25 or WCB
Chrome stainless steel
Chrome stainless steel
H: Alloy steel
Aluminum bronze
Expanded composite stone
High quality carbon steel
NKJ61Y-l type
Chromium molybdenum steel
20CrlM01vA or 38CrMoAlA
12CrlMo 1VA
Y: Cemented carbide
Chromium molybdenum steel
NKJ61H vacuum globe valve main dimensions:
Main external dimensions and connection dimensions/mm
L
H
D
D0
D1
L1
☌
W
10
4.0
130
245
36
11
18.4
10
-
120
15
130
245
36
16
22.5
10
-
120
20
150
265
44
21
28.5
11
-
160
25
160
270
48
26
34.5
12
-
200
32
180
285
48
34
-
-
37o30'
200
40
200
320
55
40
-
-
37o30'
240
50
230
365
64
48
-
-
37o30'
320
65
290
410
82
66
-
-
37o30'
300
80
310
430
95
78
-
-
37o30'
300
100
350
470
117
100
-
-
37o30'
350
125
400
500
143
126
-
-
37o30'
350
150
480
533
167
150
-
-
37o30'
400
10
6.4
130
245
36
10
18.4
10
-
120
15
130
245
36
15
22.5
10
-
120
20
150
265
44
20
28.5
11
-
160
25
160
270
48
25
34.5
12
-
200
32
180
280
48
33
-
-
37o30'
200
40
200
320
55
39
-
-
37o30'
240
50
230
365
64
48
-
-
37o30'
320
65
290
410
82
65
-
-
37o30'
320
80
310
430
95
76
-
-
37o30'
360
100
350
470
117
98
-
-
37o30'
400
125
480
500
143
123
-
-
37o30'
400
150
480
533
167
148
-
-
37o30'
500
10
10.0
130
245
36
10
18.4
10
-
120
15
130
245
36
14
22.5
10
-
120
20
150
265
44
20
28.5
11
-
160
25
160
270
48
25
34.5
12
-
200
32
180
285
48
32
-
-
37o30'
200
40
200
320
55
38
-
-
37o30'
240
50
230
355
64
48
-
-
37o30'
320
65
290
410
82
63
-
-
37o30'
320
80
310
430
95
74
-
-
37o30'
360
100
350
470
117
97
-
-
37o30'
400
125
400
500
143
123
-
-
37o30'
400
150
480
533
167
148
-
-
37o30'
500
Product structure diagram:
Packing & Delivery :
Packing Details:all by seaworthy plywood case and packed strongly by packing belt as below
Delivery Details:Generally it is 5-10 days if the goods are in stock. or15-30 days if the goods are OEM or not
enough subject to the order quantity. But anyway, normally, we are able to make sure the delivery will not exceed 45days.
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