ZJHP is a professional manufacturer of small-sized pneumatic thin film single seat regulating valves. Our independently developed and produced pneumatic regulating valves have reliable quality, reasonable prices, and complete after-sales service. The ZJHP precision small pneumatic thin film single seat regulating valve is suitable for various light and heavy industries and building pipelines. Nen En quality, shared globally! Regulating valves are widely used in various fields such as chemical, petrochemical, petroleum, papermaking, mining, electricity, liquefied gas, food, pharmaceuticals, water supply and drainage, municipal, mechanical equipment supporting, electronic industry, urban construction, etc.
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We are a professional manufacturer of ZJHP precision small pneumatic thin film single seat regulating valve, independently developed and produced by our factory【pneumatic control valve】Reliable quality, reasonable price, and comprehensive after-sales service. 『ZJHP precision small pneumatic thin film single seat regulating valveSuitable for various light and heavy industries as well as building pipelines. Nen En quality, shared globally! 【control valve】Widely used in fields such as chemical, petrochemical, petroleum, papermaking, mining, electricity, liquefied gas, food, pharmaceuticals, water supply and drainage, municipal, mechanical equipment supporting, electronics industry, urban construction, etc.
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| Product Name |
ZJHP precision small pneumatic thin film single seat regulating valve |
| Product Model |
NEQJT |
| Nominal Diameter |
DN15-150 |
| pressure range |
1.0-6.4MPa |
| Valve body material |
Cast iron 丨 ductile iron 丨 cast steel 丨 stainless steel |
We are a professional manufacturer of ZJHP precision small pneumatic thin film single seat regulating valve. Our independently developed and produced regulating valve has reliable quality, reasonable price, and complete after-sales service. The ZJHP precision small pneumatic thin film single seat regulating valve is suitable for various light and heavy industries and building pipelines. Nen En quality, shared globally! Regulating valves are widely used in various fields such as chemical, petrochemical, petroleum, papermaking, mining, electricity, liquefied gas, food, pharmaceuticals, water supply and drainage, municipal, mechanical equipment supporting, electronic industry, urban construction, etc.
【control valve】Valve body type selection: There are many types of valve bodies for regulating valves, and commonly used valve body types include ① straight through single seat ② straight through double seat ③ angular ④ diaphragm ⑤ small flow ⑥ three-way ⑦ eccentric rotation ⑧ butterfly ⑨ sleeve type ⑩ spherical, etc. When selecting a regulating valve, the following considerations can be made: (1) Valve core shape and structure: mainly based on the selected flow characteristics and unbalanced forces. (2) Wear resistance: When the fluid medium is a suspension containing high concentrations of abrasive particles, the internal material of the valve should be hard. (3) Corrosion resistance: Due to the corrosive nature of the medium, it is advisable to choose valves with simple structures. (4) Temperature and pressure of the medium: When the temperature and pressure of the medium are high and vary greatly, valves with valve cores and seats that are less affected by temperature and pressure changes should be selected. When the temperature is ≥ 250 ℃, a radiator should be added. (5) Prevent flash evaporation and cavitation: Flash evaporation and cavitation only occur in liquid media. In the actual production process, flash evaporation and cavitation can cause vibration and noise, shortening the service life of valves. Therefore, when selecting valves, precautions should be taken to prevent flash evaporation and cavitation.
Overview of ZJHP Precision Pneumatic Thin Film Single Seat Regulating Valve:
The ZJHP precision small pneumatic thin film single seat regulating valve consists of a pneumatic multi spring thin film actuator and a low flow resistance single seat valve. The new actuator has a low height, light weight, and simple equipment. The new valve body structure is compact, the flow channel is smooth, and it has a large flow coefficient. This product has stable operation, reliable action characteristics, small valve seat leakage, precise flow characteristics, and a wide adjustable range. It will undoubtedly achieve high-quality control effects in a wide range of applications with its unique advantages. There are various types of products including standard type, adjustable cutting type, corrugated pipe sealing type, jacket insulation type, etc. Suitable for liquid temperatures ranging from -200 ℃ to+560 ℃ in various grades. (Optional accessories: locator, air filter pressure reducer, holding valve, travel switch, valve position transmitter, solenoid valve, handwheel mechanism, etc.)
【1】 Performance indicators of ZJHP precision small pneumatic thin film single seat regulating valve:
project |
indicator value |
project |
indicator value |
Basic error% |
without locator |
±5.0 |
begin end point partial poor % |
Qi Guan |
without locator |
Starting point |
±5.0 |
locator |
±1.0 |
destination |
±2.5 |
Return difference% |
without locator |
≤3.0 |
locator |
Starting point |
±1.0 |
destination |
±1.0 |
locator |
≤1.0 |
air open |
without locator |
Starting point |
±2.5 |
destination |
±5.0 |
Dead zone% |
without locator |
≤3.0 |
locator |
Starting point |
±1.0 |
destination |
±1.0 |
locator |
≤0.4 |
Allowable leakage rate L/h |
1 × 10-4 × rated capacity of valve |
Rated travel deviation% |
±2.5 |
Note: This product complies with the national standard GB/T4213-92.
【2】 Allowable pressure difference MPa:
switching method |
Model of actuator |
Spring range KPa |
Gas source pressure KPa |
Need attachments |
Nominal diameter (valve seat diameter) mm |
25 |
25 |
40 |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
(10) |
(12) |
(15) |
(20) |
(32) |
(40) |
(125) |
(150) |
|
qi
close
|
ZHA -22 |
20~100 20~100 40~200 |
140 250 140 |
P P P or R |
6.4 6.4 6.4 |
5.94 6.4 6.4 |
3.34 6.4 6.4 |
3.34 6.4 6.4 |
2.14 6.4 6.4 |
|
|
|
|
|
|
|
|
|
|
|
ZHA -23 |
20~100 20~100 40~200 |
140 250 400 |
P P P or R |
|
|
|
|
|
1.31 6.09 6.4 |
0.84 3.9 5.26 |
0.53 2.5 3.39 |
|
|
|
|
|
|
|
|
ZHA -34 |
20~100 20~100 40~200 |
140 250 400 |
P P P or R |
|
|
|
|
|
|
|
|
0.51 2.36 3.21 |
0.33 1.56 2.12 |
0.21 1.0 1.35 |
|
|
|
|
|
ZHA -45 |
20~100 20~100 40~200 |
140 250 400 |
P P P or R |
|
|
|
|
|
|
|
|
|
|
|
0.22 1.02 1.39 |
0.15 0.71 0.97 |
0.08 0.40 0.54 |
|
|
ZHA -56 |
20~100 20~100 40~200 |
140 250 400 |
P P P or R |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.06 0.37 0.51 |
0.04 0.25 0.36 |
|
qi
open
|
ZHB -22 |
20~100 40~200 80~240 |
140 250 400 |
P P or R P |
4.46 6.4 6.4 |
3.09 6.4 6.4 |
1.98 5.94 6.4 |
1.11 3.34 6.4 |
0.71 2.14 4.99 |
|
|
|
|
|
|
|
|
|
|
|
ZHB -23 |
20~100 40~200 80~240 |
140 250 400 |
P P or R P |
|
|
|
|
|
0.44 1.37 3.05 |
0.28 0.84 1.95 |
0.18 0.53 1.25 |
|
|
|
|
|
|
|
|
ZHB -34 |
20~100 40~200 80~240 |
140 250 400 |
P P or R P |
|
|
|
|
|
|
|
|
0.17 0.51 1.18 |
0.11 0.33 0.78 |
0.07 0.21 0.5 |
|
|
|
|
|
ZHB -45 |
20~100 40~200 80~240 |
140 250 400 |
P P or R P |
|
|
|
|
|
|
|
|
|
|
|
0.07 0.22 0.51 |
0.05 0.15 0.35 |
0.028 0.08 0.20 |
|
|
|
ZHA -56 |
20~100 20~100 40~200 |
140 250 400 |
P P P or R |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
0.03 0.09 0.20 |
0.02 0.06 0.14 |
Note: (1) P-valve positioner; R-pressure relay; (2) Allow the maximum value of P when the valve is closed and P2=0; (3) If the allowable pressure difference is unclear or the maximum working pressure difference exceeds the list range, please contact us.
【3】 Main component materials:
Part Name |
material |
temperature range |
Valve cover on valve body |
HT200 |
-20~200℃ |
ZG230-450 |
-40~450℃ |
ZG1Cr18Ni9Ti |
-250~550℃ |
ZG0Cr18Ni12Mo2Ti |
-250~550℃ |
Valve core and seat |
1Cr18Ni9 |
-250~550℃ |
0Cr18Ni12Mo2Ti |
-250~550℃ |
Packing material |
Polytetrafluoroethylene |
-40~200℃ |
Diaphragm film |
Ding Qing rubber clip reinforced polyester fabric |
|
compression spring |
60Si2Mn |
|
Membrane cover |
A3 |
|
【4】 Main technical parameters of the regulating mechanism:
Nominal diameter mm |
20 |
25 |
40 |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
Valve seat diameter mm |
10 |
12 |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
Can collaborate with our company Negotiate production |
rated 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 |
1000 |
1600 |
Equal percentage |
1.6 |
2.5 |
4 |
6.3 |
10 |
16 |
25 |
40 |
63 |
100 |
160 |
250 |
400 |
630 |
900 |
1440 |
Nominal pressure MPa |
0.6 1.6 4.0 6.4 |
Travel distance mm |
10 |
16 |
25 |
40 |
60 |
100 |
|
|
flow characteristics |
Straight line, equal percentage, quick opening type |
Medium temperature ℃ |
-40-230 ℃ (normal temperature type), heat sink 230-450 ℃ (medium temperature type), special order -100-600 ℃ |
Flange Standard |
Compliant with JB78-59 and JB79-59 standards, can be ordered and produced according to JB/79.1-94, JB/79.2-94, ANSI, JIS, DIN and other standards |
Valve body material |
PN (MPa) |
0.6,1.6 |
WCB(ZG230-450) CF3CF8 CF8M |
4.0,6.4 |
WCB(ZG230-450)、ZG1Cr18Ni9Ti、ZG0Cr18Ni12Mo2Ti CF8 CF8M |
Valve type |
Straight through single seat cast ball valve |
Valve core material |
1 CR 18 by 9 、 0 CR 18 by 12 mo 2 Ti CF 8 CF 8 m |
Upper valve cover form |
Ordinary type (constant temperature type), hot plate type (medium temperature type), low temperature type |
Adjustable ratio R |
50:1 |
Air source connector |
M16×1.5 |
Note: ANSI and JIS flange products can be provided to users, and the structural length can also be determined according to user needs.
【5】 Main technical parameters of the executing agency:
model |
ZHA-22 ZHB-22 |
ZHA-23 ZHB-23 |
ZHB-34 ZHB-34 |
ZHA-45 ZHB-45 |
ZHA-56 ZHB-56 |
Effective area cm2 |
350 |
350 |
560 |
900 |
1600 |
Travel distance mm |
16 |
25 |
40 |
60 |
100 |
Spring range KPa |
20-100 (standard): 40-200; 80~240; 20~60; 60~100 |
【6】 ZJHP precision small pneumatic thin film single seat regulating valve external dimensions mm:
DN |
L |
H |
H1 |
mass (kg) |
φA |
PN16 |
PN40 |
PN64 |
ordinary |
high temperature |
PN6 |
PN16 |
PN40 |
PN64 |
PN6 PN16 |
PN40 PN64 |
20 |
181 |
194 |
206 |
398 |
548 |
45 |
52 |
65 |
19 |
23 |
285 |
25 |
185 |
197 |
210 |
410 |
560 |
50 |
57 |
70 |
20 |
24 |
40 |
222 |
235 |
251 |
455 |
620 |
65 |
75 |
85 |
26 |
35 |
50 |
254 |
267 |
286 |
457 |
627 |
70 |
82 |
90 |
30 |
40 |
65 |
276 |
292 |
311 |
610 |
790 |
80 |
92 |
100 |
47 |
66 |
360 |
80 |
298 |
317 |
337 |
622 |
807 |
95 |
100 |
107 |
55 |
78 |
100 |
352 |
368 |
394 |
640 |
850 |
105 |
110 |
117 |
125 |
65 |
99 |
150 |
451 |
473 |
508 |
870 |
1130 |
132 |
142 |
150 |
172 |
130 |
160 |
470 |
200 |
600 |
650 |
890 |
1150 |
160 |
170 |
187 |
207 |
175 |
250 |
250 |
730 |
775 |
1203 |
1523 |
187 |
202 |
225 |
235 |
350 |
470 |
580 |
300 |
850 |
900 |
1234 |
1554 |
220 |
230 |
257 |
265 |
500 |
660 |
manual regulating valve |
electric regulating valve |
pneumatic control valve |
self-actuated regulator |
【control valve】It consists of an electric or pneumatic actuator and a regulating valve. Regulating valves are divided into electric regulating valves, pneumatic regulating valves, and hydraulic regulating valves (self operated regulating valves). Regulating valves are used to regulate the flow rate, pressure, and liquid level of the medium. According to the signal from the regulating position, the opening of the valve is automatically controlled to achieve the regulation of medium flow rate, pressure, and liquid level. Regulating valves are usually divided into two types: straight through single seat regulating valves and straight through double seat regulating valves. The latter has the characteristics of large flow capacity, small imbalance, and stable operation, so it is usually particularly suitable for situations with high flow rate, high pressure drop, and low leakage. The flow capacity Cv is one of the main parameters for selecting a regulating valve. The definition of the flow capacity of a regulating valve is: when the regulating valve is fully opened, the pressure difference between the two ends of the valve is 0.1MPa, and the fluid density is 1g/cm3, the flow rate per hour of the regulating valve is called the flow capacity, also known as the flow coefficient, expressed in Cv, with the unit of t/h. The Cv value of the liquid is calculated according to the following formula.
Quanli Ordering Notice: (National Standard)
1、 A: Product name, model, nominal diameter B: Medium and temperature, pressure range C: Are there any accessories, delivery time, special requirements, etc. for us to correctly select for you.
2、 If the valve model of our company has already been selected by the design unit, please place an order directly with our sales center based on the valve parameters.
3、 When the situation you are using is very important or the environment is complex, please provide design drawings and detailed parameters, and our engineers and experts will focus on reviewing and analyzing for you. We can provide you with professional solutions, including design, customization, complete sets, operation, and service. We have always been committed to being a leader in the valve industry, providing you with the latest valve knowledge, the best service, and the best technical consultants. Thank you for visiting our website【www.quanlivalve.com】If you have any questions, you can call us and we will do our best to provide you with high-quality service. Our factory specializes in providingball valve、butterfly valve、gate valve、globe valve、check valve、pressure reducing valve、safety valve、Marine valves、Oilfield valves、Water control valveWaiting for various types of valves.