How it works
Manual quarter-turn gearbox
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
The butterfly valve is designed for installation on pipelines in automatic control systems for heat and water supply, in stationary air conditioning and ventilation systems at industrial and civil facilities.
The DNOVA reducer allows to manually set the required positioning of the shut-off body by a quarter turn, acting as an alternative to pneumatic, electric or hydraulic quarter-turn actuators.
Dimensions and dimensions of water butterfly valves DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel 316L, seal - EPDM with gear DNOVA HGB, with position indicator:
| DN | A | B | D1 | L | I | R | D |
| 40 | 105 | 55 | 75 | 33 | 48 | 140 | 80 |
| 50 | 161 | 80 | 84.5 | 43 | 48 | 140 | 80 |
| 65 | 175 | 89 | 104.5 | 45 | 48 | 140 | 80 |
| 80 | 181 | 95 | 123.5 | 45 | 48 | 140 | 80 |
| 100 | 200 | 114 | 139.5 | 52 | 48 | 140 | 80 |
| 125 | 213 | 127 | 169.5 | 55 | 48 | 140 | 80 |
| 150 | 226 | 139 | 196 | 55 | 48 | 140 | 80 |
| 200 | 260 | 175 | 247 | 60 | 58 | 250 | 100 |
| 250 | 292 | 203 | 304 | 68 | 58 | 250 | 100 |
| 300 | 337 | 242 | 358 | 78 | 58 | 250 | 100 |
Sketch Butterfly valves DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel 316L, seal - EPDM with gear DNOVA HGB, with position indicator
Materials of water butterfly valves DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel 316L, seal - EPDM with gear DNOVA HGB, with position indicator:
|
№ |
Name |
Material |
|
1 |
Body |
Cast iron GGG50 |
|
2 |
Disc |
Steel 316L |
|
3 |
Seat seal |
EPDM |
|
4 |
Upper stem |
Steel 316L |
|
5 |
Lower stem |
Steel 316L |
|
6, 11 |
Retaining ring |
Steel AISI 201 |
|
7 |
Duster |
NBR |
|
8 |
Stem gasket |
NBR |
|
9 |
Insert |
Steel AISI 201 |
|
10 |
Plug |
Plastic |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Control type
- Gear
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Explosion-proof
- No
- Thermal protection
- No
- Torque
- 59 Nm
- Pneumatic actuator
- 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