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The ZXG type new serial pneumatic membrane direct single seat regulating valve adopts and carries the structure of leading, worthy of using the executive body of many springs. Have structure compactness , light , movement sensitivity , fluid passway present S to be streamlined is it lower loss light , valve capacity heavy , flow characteristic accurate , disassembly and assembly advantage such as being convenient to keeping. Apply to control such medium as the gas , liquid ,etc. accurately extensively, the craft parameter keeps in setting value such as the pressure , flow , temperature , liquid location . Especially suitable for allowing the small valve of the letting out amount to press the working occasion not big of difference.
Standard type , regulate person who cut off , corrugated pipe sealed type , insert suit keep type many kinds of variety warm of series of products this. The grade of nominal pressure of the products is PN10, 16 , 40 , 64; Valve body requirements range DN20 valve is 200. Suitable fluid warm from- many kinds of grade in the 200 suitable 560 degrees Centigrade of ranges. The letting out amount standard has IV grade or VI grade. The flow characteristic is linear or when percentage. The varied variety specification is available.
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Characteristic of the products: |
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1, carry and lead the regulating valve of the single seat, the structure is compact, there are few and exchanging maintenance parts.
2, suitable many kinds of working occasions of core of metal valve, reach IV grade and let out the standard, the ZXPQ type soft sealed structure valve core reaches VI grade and lets out the standard.
3, valve body design according to hydromechanical principle section low to is it is it shed dish to hinder to flow, specified flow coefficient increases 30%.
4, the adjustable range is big, it is to 50 to be inherent and adjustable.
5, the executive body adopts the structure of many springs, highly reduce 30% , weight to lighten by 30%.
6, Model ZXGV corrugated pipe sealed regulating valve, form complete sealing to valve stem that move, stop up the hopeless fluid to leak .
7, the regulating valve of the Model ZXPJ keeps warm inserting set, it causes the occasion stopped up to exchange the crystallization , solidify after being used the fluid and cooled.
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Part material : |
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 Major part material :
Valve body , valve are covered: HT200, ZG230-450, ZG1Cr18Ni9Ti
The core of the valve, valve seat: 1Cr18Ni9Ti, the alloy of fields lying fallow in rotation is piled and welded very much in the department
Core of the soft sealed valve: Strengthen the polytetrafluoroethylene (PTFE)
Packing : Polytetrafluoroethylene (PTFE), soft graphite
Corrugated pipe : 1Cr18Ni9Ti
Spacer : Rubber asbestos board, 10 , 1Cr18Ni9Ti , asbestos twine the spacer
The membrane is covered: A3
Ripple diaphragm: The man inserts fine rubber to strengthen the dacron fabric
Spring: 60SIMN
Valve stem, push rod: 2Cr13 , 1Cr18Ni9Ti
Bush : 2Cr13
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| Technical parameter: |
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Nominal open DN directly ( mm) |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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(10) |
(12) |
(15) |
(20) |
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Specified flow coefficient
KV |
Straight line |
1.8 |
2.8 |
4.4 |
6.9 |
11 |
17.6 |
27.5 |
44 |
69 |
110 |
176 |
275 |
440 |
690 |
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Wait for percentage |
1.6 |
2.5 |
4.0 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
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Specified journey L ( mm) |
16 |
25 |
40 |
60 |
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Effective area Ae of the diaphragm (cm2 ) |
280 |
400 |
600 |
1000 |
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Signal range Pr (KPa) |
20~100, 40~200 |
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Pressure Ps of source of the gas (MPa) |
0.14~0.4 |
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Inherent flow characteristic |
Straight line, when percentage |
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Inherent adjustable than |
50 |
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Allow the letting out amount |
Hard valve seat: IV grade is (10 -4 The specified capacity of the valve) Soft valve seat: VI grade |
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Nominal pressure PN ( MPa) |
1.0, 1.6, 4.0, 6.4 |
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Working temperature t ( Degrees Centigrade) |
Normal atmospheric temperature type |
-2000 , - 4040 , - 6050 |
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Heat dissipation type |
-4050 , - 6050 |
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High temperature type |
450~560 |
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Low temperature type |
-More than 60 100,- more than 100 - 200,- more than 200 |
This industry performance index carries out GB/T4213-92 standard
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| Specification quality: |
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Standard type , heat dissipation shape , high-temperature external dimension form Unit: MM
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Nominal and open directly |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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282 |
308 |
394 |
494 |
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L |
PN16, 40 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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PN64 |
230 |
230 |
260 |
260 |
300 |
340 |
380 |
430 |
500 |
550 |
650 |
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H1 |
PN16 |
53 |
58 |
70 |
75 |
83 |
93 |
100 |
110 |
125 |
143 |
170 |
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PN40 |
53 |
58 |
70 |
75 |
83 |
93 |
100 |
118 |
135 |
150 |
188 |
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PN64 |
65 |
70 |
78 |
85 |
90 |
103 |
108 |
125 |
148 |
173 |
208 |
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H |
Mark
Accurate
Type |
PN16 |
429 |
438 |
474 |
476 |
502 |
622 |
646 |
687 |
835 |
889 |
981 |
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PN40 |
429 |
438 |
474 |
476 |
502 |
622 |
646 |
695 |
845 |
896 |
1000 |
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PN64 |
456 |
468 |
511 |
525 |
535 |
663 |
673 |
705 |
868 |
958 |
1260 |
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High temperature type of heat dissipation |
570 |
570 |
610 |
610 |
630 |
730 |
810 |
820 |
960 |
1090 |
1180 |
The high temperature type of heat dissipation is highly(H) the number value of PN16
**Insert one set of types high H1 and H increase by 15%
Sealed external dimension of the corrugated pipe Unit: MM
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Nominal and open directly |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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§¶ A |
282 |
308 |
394 |
494 |
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L |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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H1 |
53 |
58 |
70 |
75 |
83 |
93 |
100 |
110 |
125 |
143 |
170 |
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H standard type |
446.5 |
453.5 |
490 |
542 |
537.5 |
617.5 |
667 |
675 |
735 |
907.5 |
900 |
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Nominal and open directly |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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§¶ A |
282 |
308 |
394 |
494 |
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L |
PN16, PN40 |
150 |
160 |
180 |
200 |
230 |
290 |
310 |
350 |
400 |
480 |
600 |
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PN64 |
230 |
230 |
260 |
260 |
300 |
340 |
380 |
430 |
500 |
550 |
650 |
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H1 |
PN16, PN40 |
52.5 |
5705 |
70 |
75 |
8205 |
92.5 |
100 |
117.5 |
135 |
150 |
187.5 |
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PN64 |
65 |
70 |
7705 |
85 |
900 |
102.5 |
107.5 |
125 |
147.5 |
172.5 |
207.5 |
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H2 |
-60 60 - 100 degrees Centigrade |
500 |
500 |
500 |
500 |
500 |
600 |
600 |
600 |
700 |
700 |
700 |
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-100 100 - 200 degrees Centigrade |
700 |
700 |
700 |
700 |
700 |
800 |
800 |
800 |
900 |
900 |
900 |
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-200 200 - 250 degrees Centigrade |
900 |
900 |
900 |
900 |
900 |
1000 |
1000 |
1000 |
1100 |
1100 |
1100 |
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H |
-60~
-100
(degrees Centigrade) |
PN16, PN40 |
810 |
810 |
832 |
832 |
832 |
1026 |
1026 |
1024 |
1200 |
1198 |
1198 |
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PN64 |
810 |
810 |
832 |
832 |
832 |
1026 |
1026 |
1024 |
1200 |
1198 |
1198 |
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-100~
-200
(degrees Centigrade) |
PN16, PN40 |
1010 |
1010 |
1032 |
1032 |
1032 |
1226 |
1226 |
1124 |
1400 |
1398 |
1398 |
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PN64 |
1010 |
1010 |
1032 |
1032 |
1032 |
1226 |
1226 |
1124 |
1400 |
1398 |
1398 |
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-200~
-250
(degrees Centigrade) |
PN16, PN40 |
1210 |
1210 |
1032 |
1232 |
1232 |
1426 |
1426 |
1424 |
1600 |
1598 |
1598 |
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PN64 |
1210 |
1210 |
1032 |
1232 |
1232 |
1426 |
1426 |
1424 |
1600 |
1598 |
1598 |
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§¶ D3 |
260 |
260 |
285 |
305 |
340 |
370 |
405 |
460 |
525 |
590 |
700 |
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§¶ D4 |
290 |
290 |
315 |
335 |
370 |
400 |
435 |
490 |
555 |
630 |
740 |
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Bolt hole N (one)- D (diameter ) |
8-14 |
8-14 |
8-14 |
8-16 |
8-16 |
10-16 |
10-16 |
12-18 |
14-18 |
16-18 |
18-18 |
Weight form of regulating valve Unit: KG
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Nominal and open directly |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
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Standard type |
PN16 |
16 |
17
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19 |
21 |
23 |
35 |
48 |
57 |
64 |
70 |
900 |
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PN40 |
16 |
17 |
19 |
21 |
23 |
35 |
48 |
60 |
67 |
74 |
95 |
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PN64 |
20 |
21 |
25 |
30 |
33 |
44 |
71 |
91 |
100 |
115 |
145 |
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High temperature type of heat dissipation |
17 |
18 |
20 |
22 |
25 |
36 |
51 |
60 |
67 |
74 |
95 |
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Corrugated pipe type |
20 |
21 |
25 |
30 |
33 |
48 |
71 |
91 |
102 |
115 |
145 |
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Low temperature type |
20 |
21 |
23 |
26 |
28 |
42 |
58 |
69 |
77 |
84 |
108 | | |
