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NBKVKHM All-copper pneumatic sleeve regulating valve for oxygen

NBKVKHM All-copper pneumatic sleeve regulating valve for oxygen

Product description: The NBKVKHM precision small pneumatic film sleeve regulating valve adopts a top-oriented structure and is equipped with a multi-spring actuator. It has the advantages of compact structure, light weight, sensitive action, S streamlined fluid channel, small pressure drop loss, large valve capacity, accurate flow characteristics, and convenient disassembly and assembly. It is widely used to accurately control the process parameters of gas, liquid and other media to keep the pressure, flow, temperature, and liquid level at a given value. It is especially suitable for occasions where the allowable leakage is small and the pressure difference between the front and rear of the valve is not large.

  • Item NO.:

    XUVAL77-108
  • Lead Time:

    45Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    Silvery
  • MOQ:

    10
Products Details

NBKVKHM All-copper pneumatic sleeve regulating valve for oxygen

Features:
1. Using a balanced valve core structure, the axial unbalanced force is small, the allowable pressure difference is large, and the stability is good.
2. The sleeve is highly interchangeable, easy to disassemble and assemble, and easy to repair.
3. The all-metal valve core structure is suitable for a variety of work occasions, and reaches the level IV leakage standard, and the ZXMQ soft-sealed structure valve core meets the level VI leakage standard.
4. The valve body is designed according to the principle of fluid mechanics into a uniform cross-section and low flow resistance flow channel, with a large adjustable range, an inherent adjustable ratio of 50, and a 30% increase in the rated flow coefficient.
5. The actuator adopts a multi-spring structure, and the height is reduced by 30%. 30% weight reduction.
6. The ZJHMV bellows-sealed regulating valve forms a complete seal to the moving valve stem and prevents fluid leakage.
7. The ZJHMJ control valve is equipped with a thermal insulation jacket, which is used in the occasions where the fluid is easy to crystallize and solidify after cooling.


Material of main parts:
Valve body, valve cover: HT200, ZG230-450, ZGlCr18Ni9Ti
Valve core, valve seat: 1Cr18Ni9T, Stellite alloy surfacing welding
Soft seal spool: reinforced polytetrafluoroethylene
Packing: PTFE, flexible graphite, stainless steel bellows
Gasket: rubber asbestos board, 1Cr18Ni9Ti, graphite spiral wound gasket
Membrane cover: A3
Corrugated diaphragm: nitrile rubber clip reinforced polyester fabric
Spring: 60Si2Mn
Stem, push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13


The main technical parameters:

Nominal diameter DN(mm)
20 25 32 40 50 65 80 100 125 150 200
Rated flow coefficient Kv
Straight line
6.9 11 17.4 27.5 44 69 110 176 275 440 690
Equal percentage
6.3 10 16 25 40 63 100 160 250 400 630
Rated stroke L(mm)
16
25
40
60
Diaphragm effective area Ae(cm 2)
280
400
600
1000
Signal range (kPa)
20~100、40~200、80~240
Air source pressure Ps(MPa)
0.14、0.25
Inherent flow characteristics
Straight line, equal percentage
Inherent adjustable ratio
50
Allowable leakage
Hard seat unbalanced type: Class IV Soft seat: Class VI
Nominal pressure PN(MPa)
1.0、1.6、4.0、6.4
Working temperature (℃)
Normal temperature type
-20~200、-40~250、-60~250
Cooling type
-40~450、-60~450
High temperature type
300~560
Low temperature type
-60~-100、-100~-200、-200~-250
The performance indicators of this product implement the GB/T4213-92 standard



Dimensions:

Nominal diameter
20 25 32 40 50 65 80 100 125 150 200
A 282 308 394
498
L PN16,40 150 160 180 200 230 290 310 350 400 480 600
PN64 230 230 260 260 300 340 380 430 500 550 650
H1 PN16 52.5 57.5 70 75 82.5 92.5 100 110 125 142.5 170
PN40 52.5 57.5 70 75 82.5 92.5 100 117.5 135 150 187.5
PN64 65 70 77.5 85 90 102.5 107.5 125 147.5 172.5 207.5
H Standard
PN16 429 438 474 477 502 626 662 687 836 896
PN40 429 438 474 477 502 626 662 695 845 896
PN64 456 468 511 525 535 663 673 705 868 958
Heat dissipation high temperature type
570 570 610 610 630 730 810 820 960 1090


Product Structure:




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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