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Welded vacuum globe valve

Welded vacuum globe valve

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.:

    XUVAL77-86
  • Lead Time:

    45Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    Silvery
  • MOQ:

    10
Products Details

Welded 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:

Nominal diameter
DN/mm
Nominal pressure
PN/MPa
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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