ZJHN Pneumatic Double Seat Regulating Valve
Product overview
Product model: ZJHN
Nominal diameter: DN25 ~ 400mm
Nominal pressure: PN16~64MPa
Applicable temperature: -250℃ ~ +560℃
Main material: HT200, ZG230-450, ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti
Applicable medium: gas, liquid, steam and other media
Drive mode: pneumatic
Design standard: GB/T17213
Flange standard: GB/T9113, JB/T79, HG20594 and other standards
Inspection standard: GB/T4213
Connection type: flange (FF RF RTJ), welding (SW BW), thread (applicable to less than 1 ")
ZJHN Pneumatic Double Seat Regulating Valve overview
ZJHN Pneumatic Double Seat Regulating Valve produced and sold by Baigang valve group with double-guided structure, equipped with multi-spring recruit agencies. Has the advantages of compact structure, light weight, action sensitive, large valve capacity, accurate flow characteristics, easy disassembly. Pneumatic two-seat control valve is widely used in precise control of gas, liquid, steam and other media process parameters such as pressure, flow, temperature, liquid level at a given value. Particularly suitable for large pressure drop, allowing greater leakage and not very clean media occasions.
Pneumatic two-seat control valve products are standard, bellows sealed, jacket insulation and other varieties. Product nominal pressure rating PN16, 40, 64; body diameter range DN25 ~ 400. Applicable fluid temperature -250 ℃ ~ + 560 ℃ range of a variety of grades. Leakage standards for grade Ⅲ and Ⅳ. Flow characteristics are linear or percentage. A wide variety of specifications to choose from.
ZJHN Pneumatic Double Seat Regulating Valve main parts and materials
|
Part Name |
material |
temperature range |
|
Body valve cover |
HT200 |
-20 ~ 200 ℃ |
|
ZG230-450 |
-40 ~ 450 ℃ |
|
|
ZG1Cr18Ni9Ti |
-250 ~ 550 ℃ |
|
|
ZG0Cr18Ni12Mo2Ti |
-250 ~ 550 ℃ |
|
|
Spool, seat |
1Cr18Ni9 |
-250 ~ 550 ℃ |
|
0Cr18Ni12Mo2Ti |
-250 ~ 550 ℃ |
|
|
filler |
Teflon |
-40 ~ 200 ℃ |
|
Diaphragm |
NBR rubber reinforced polyester fabrics |
|
|
compressed spring |
60Si2Mn |
|
|
Membrane cover |
A3 |
ZJHN Pneumatic Double Seat Regulating Valve main technical parameters
|
Nominal diameter mm |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
400 |
||
|
Rated flow coefficient kv |
10 |
16 |
25 |
40 |
63 |
100 |
250 |
250 |
400 |
630 |
100 |
1600 |
2700 |
||
|
Nominal pressure MPa |
1.6 4.0 6.4 |
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|
Travel mm |
16 |
25 |
40 |
63 |
100 |
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|
Medium temperature ℃ |
-40 ~ 230 ℃ (room temperature type), heat sink 230 ~ 450 ℃ (medium temperature), special order -100 ~ 600 ℃ |
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|
Flow characteristics |
Straight line, equal percentage |
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|
Flange standard |
In line with JB78-59, JB79-59 standards, according to JB / 79.1-94, JB / 79.2-94, ANSI, JIS, DIN and other standard production orders |
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|
Body material |
PN (MPa) |
1.6 |
WCB (ZG230-450) CF3CF8 CF8M |
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|
4.0,6.0 |
WCB (ZG230-450), ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti CF8 CF8M |
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|
Spool material |
1Cr18Ni9,0Cr18Ni12Mo2Ti CF8 CF8M |
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|
On the bonnet type |
Ordinary type (normal temperature type), hot type (medium temperature type) |
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|
Adjustable ratio |
30: 1 |
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|
Air source connector |
M16 × 1.5 |
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ZJHN Pneumatic Double Seat Regulating Valve pneumatic actuator
|
model |
ZHA (B) -1 |
ZHA (B) -2 |
ZHA (B) -3 |
ZHA (B) -4 |
ZHA (B) -5 |
ZHA (B) -6 |
|
Effective area of cm2 |
200 |
280 |
400 |
630 |
1000 |
1600 |
|
Travel mm |
10 |
16 |
25 |
40 |
60 |
1000 |
|
Spring range KPa |
20 to 100 (standard); 20 to 100, 40 to 200, 20 to 60, 60 to 100, 80 to 240 |
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ZJHN Pneumatic Double Seat Regulating Valve pneumatic actuator main technical performance indicators
|
project |
Index value |
|
|
Basic error% |
Without locator |
± 5.0 |
|
With locator |
± 1.0 |
|
|
Backlash% |
Without locator |
3.0 |
|
With locator |
1.0 |
|
|
dead zone% |
Without locator |
3.0 |
|
With locator |
0.4 |
|
|
Permissible leakage L / h |
1 × 10-3 × valve rated capacity |
|
ZJHN Pneumatic Double Seat Regulating Valve actuator allows pressure
|
Supply pressure MPa |
Spring pressure KPa |
Nominal diameter |
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|
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
||
|
0.14 |
20-100 |
5.4 |
4.4 |
4.9 |
3.8 |
4.7 |
3.6 |
2.8 |
3.75 |
2.7 |
2.15 |
2.0 |
1.7 |
|
0.24 |
40-200 |
10.8 |
8.8 |
9.8 |
7.6 |
9.4 |
7.2 |
5.6 |
7.5 |
5.4 |
4.3 |
4.0 |
3.4 |
Note: The condition of use is P2 = 0 when the stem is out of the media outlet.
ZJHN Pneumatic Double Seat Regulating Valve dimensions
|
Public Path (mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
|
|
L (mm) |
PN1.6MPa |
185 |
200 |
220 |
250 |
275 |
300 |
350 |
410 |
450 |
550 |
670 |
770 |
|
PN4.0MPa |
190 |
210 |
230 |
255 |
285 |
310 |
335 |
425 |
460 |
560 |
740 |
805 |
|
|
PN6.4MPa |
200 |
210 |
235 |
265 |
295 |
320 |
370 |
440 |
475 |
570 |
750 |
820 |
|
|
H (mm) |
normal type |
567 |
570 |
645 |
650 |
877 |
887 |
899 |
1058 |
1068 |
1110 |
1498 |
1574 |
|
Heat sink type |
697 |
700 |
775 |
780 |
1040 |
1050 |
1062 |
1257 |
1267 |
1309 |
1743 |
1819 |
|
|
H1 (mm) |
117 |
120 |
139 |
144 |
188 |
208 |
220 |
268 |
278 |
320 |
441 |
503 |
|
|
D (mm) |
225 |
360 |
470 |
620 |
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|
Weight (KG) |
33 |
35 |
47 |
51 |
98 |
111 |
148 |
236 |
292 |
433 |
760 |
920 |
|
Reminder:
All text, data and pictures in this article are for reference only.To see more details of the ZJHN Pneumatic Double Seat Regulating Valve performance parameters, structural dimension parameters, pricing, etc., or to request high quality printing samples, please Contact us.
Headquarters Tel: +86-021-57278880
Sales Tel: +86-021-57278881
Fax: +86-021-57278882
E-mail: baigangvalve@163.com
Site: www.www.godongs.com
Add: Tinglin Industrial Park, Jinshan District, Shanghai
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