Tel: 15351513002
Phone: 15351513006
Phone: 0515-89118577
0515-89118677
0515-89118277
Fax: 0515-8911 8000
E-mail：jtongcn 126.com
Website: www.jtongcn.cn
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
ZMAW pneumatic thin film regulating butterfly valve/ZSRW, ZSCW pneumatic piston regulating butterfly valve can be controlled by inputting control signals (4-20mADC or 1-5VDC) to the air source for operation. The structure is simple and compact, easy to process, easy to make into large diameters, has self-cleaning function, low resistance coefficient, and high flow capacity. Suitable for regulating fluids with suspended particles and concentrated or turbid slurry fluids. For clean media, valve plates with soft seals (rubber rings, PTFE rings) can be used to reduce leakage (up to 0.01%). For high temperature and high pressure conditions, a three eccentric hard seal valve body can be used. Please indicate it when placing an order.
Main technical parameters of pneumatic regulating butterfly valve
Nominal diameter mm | 50 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 | |
Rated flow coefficientKv | 85 | 220 | 340 | 530 | 770 | 1360 | 2130 | 3060 | 4160 | 5450 | 6900 | 8500 | 12200 | 16600 | 21700 | 27540 | 34000 | |
Nominal pressure MPa | 0.6 | |||||||||||||||||
Rated angle ° | 70 | |||||||||||||||||
Signal pressure KPa | 20～100 | |||||||||||||||||
Traffic characteristics | Approximately equal percentage | |||||||||||||||||
Medium temperature ℃ | -20～200(Ordinary temperature) ； -40～450(Moderate temperature) ； -40～600(High temperature) | |||||||||||||||||
Nozzle flange | According to JB78-59 clamp type flange connection | |||||||||||||||||
Signal connection screw hole | M16×1.5 | |||||||||||||||||
Equipped with actuator | Film | ZMA-2 | ZMA-3 | ZMA-4 | ZMA-5 | |||||||||||||
Piston | ZSC-45 | |||||||||||||||||
Body material | ZG230-450；1Cr18Ni9； ZG1Cr18Ni9Ti、ZGOCr18Ni12Mo2Ti | |||||||||||||||||
Can be equipped with accessories | Handwheels, locators, air filters, pressure reducers, etc. | |||||||||||||||||
Main component materials and recommended temperature range for pneumatic butterfly valves
Part name | Material Science | Temperature range ℃ |
Valve body and valve plate | ZG230-450 | -40-450 |
ZG1Cr18Ni9Ti | -250-550 | |
ZG0Cr18Ni12Mo2Ti |
Note: This table shows the maximum operating temperatures of various materials. In actual selection, the low and high operating temperatures of the materials should be determined based on the temperature range of the product's medium. The low operating temperature should not be lower than the lower limit of the medium temperature range, and the high operating temperature should not be higher than the upper limit of the medium temperature range.
Main technical parameters of pneumatic butterfly valve diaphragm actuator
Model | ZMA-2 | ZMA-3 | ZMA-4 | ZMA-5 |
Effective area cm2 | 280 | 400 | 630 | 1000 |
trip mm | 16 | 25 | 40 | 60 |
Spring range KPa | 20～100 ； 40～200 ； 20～60 ； 60～100 | |||
Main technical parameters of pneumatic butterfly valve piston actuator
Model | Piston diameter mm | Effective area cm2 | large stroke mm | High operational pressure KPa | High output power N |
ZSC-45 | 250 | 484 | 60 | 500 | 21800 |
Performance indicators of pneumatic control butterfly valve
Executing Agency | Diaphragm actuator | Piston actuator | |||||
Category | Without locator | Equipped with locator | Equipped with locator | ||||
Spring range KPa | |||||||
20～100 40～200 | 20～60 60～100 | ||||||
Project | Basic error% | ±8 | - | ±2.0 | ±2.0 | ||
Return difference% | 6 | - | 2.0 | 2.0 | |||
Dead zone% | 5 | - | 0.8 | 0.8 | |||
Always point deviation% | air to open | Starting point | ±4.0 | ±4.0 | ±2.0 | ± | |
End | ±8 | ±8 | |||||
air to close | Starting point | ±8 | ±8 | ||||
End | ±4.0 | ±4.0 | |||||
Rated angle deviation% | ±2.5 | ||||||
Allowable leakage amount1/h | 2×10-2×Rated capacity of valve | ||||||
Pneumatic control butterfly valve allows pressure difference MPa
Equipped with actuator model | ZMA-2 | ZMA-3 | ZMA-4 | ZMA-5 | ZSC-45 | ||||||
0° | 70° | 0° | 70° | 0° | 70° | 0° | 70° | 0° | 70° | ||
Nominal Diametermm | 50 | 0.6 | 0.097 | ||||||||
80 | 0.6 | 0.038 | |||||||||
100 | 0.556 | 0.0196 | |||||||||
125 | 0.6 | 0.0250 | |||||||||
150 | 0.444 | 0.0150 | |||||||||
200 | 0.185 | 0.00587 | |||||||||
250 | 0.331 | 0.00845 | |||||||||
300 | 0.181 | 0.00461 | |||||||||
350 | 0.133 | 0.00292 | |||||||||
400 | 0.216 | 0.00485 | |||||||||
450 | 0.171 | 0.00341 | |||||||||
500 | 0.139 | 0.0025 | |||||||||
600 | 0.6 | 0.019 | |||||||||
700 | 0.6 | 0.0119 | |||||||||
800 | 0.442 | 0.00795 | |||||||||
900 | 0.339 | 0.00599 | |||||||||
1000 | 0.236 | 0.00403 | |||||||||
Note:The values in parentheses represent the allowable pressure difference with a locator.
Main external dimensions of pneumatic regulating butterfly valve
ZMAW Pneumatic Diaphragm Control Butterfly Valve
Tel: 15351513006
Landline: 0515-89118577
Fax: 0515-8911 8000
Email: jtongcn 126.com
Address: Oubei Pump and Valve Industrial Park, Binhai Economic Development Zone, Jiangsu Province
15351513006
