How it works
Spring-return rotary actuator
Butterfly disc
The number that matters
Nominal pressure
16bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
Butterfly valves DNOVA with return springs are designed for installation on pipelines in automatic control systems of heat and water supply, in stationary air conditioning and ventilation systems at industrial and civil facilities.
Pneumatic actuators DNOVA SA double-acting rotary actuators are used for automation of industrial valves control process with maximum torque up to 2128 Nm. Adjustment range is 5° when the valve stem is rotated by 90° degrees. Operating environment: indoors and outdoors. (All internal and external parts are anti-corrosion coated).
Overall and installation dimensions of water butterfly valve DNOVA GGG50-GGG40-EPDM body material - Cast iron GGG50, disk material - Cast iron GGG40, seal - EPDM with pneumatic actuator with return springs DNOVA SA:
|
DN, mm |
A, mm |
B, mm |
C, mm |
E, mm |
F, mm |
ØD, mm |
Weight, kg |
|
40 |
105 |
55 |
107.5 |
174 |
72 |
75 |
5.3 |
|
50 |
161 |
80 |
107.5 |
174 |
72 |
84.5 |
5.9 |
|
65 |
175 |
89 |
107.5 |
216 |
72 |
104.5 |
9.6 |
|
80 |
181 |
95 |
107.5 |
216 |
72 |
123.5 |
10 |
|
100 |
200 |
114 |
107.5 |
279 |
72 |
139.5 |
14.7 |
|
125 |
213 |
127 |
128.7 |
279 |
92 |
169.5 |
21.5 |
|
150 |
226 |
139 |
128.7 |
405 |
92 |
196 |
31 |
|
200 |
260 |
175 |
153 |
465 |
109.5 |
247 |
59.1 |
|
250 |
292 |
203 |
175 |
542 |
127.5 |
304 |
65.5 |
|
300 |
337 |
242 |
192 |
542 |
137.5 |
358 |
125.3 |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 110 °C
- Connection type
- Compact flanged
- Control type
- Pneumatic actuator
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Cast iron GGG40/EN-GJS-400-15
- Explosion-proof
- No
- Thermal protection
- Yes
- Torque
- 23 Nm
- Pneumatic actuator
- No
- Manual override
- No
- Limit switches
- No
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal