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.:
XUVAL77-108Lead Time:
45DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTColor:
SilveryMOQ:
10NBKVKHM 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
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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