
How it works
Electric quarter-turn actuator
Butterfly disc
The number that matters
Max. medium temperature
90درجة مئوية
The highest medium temperature this valve is rated for.
Construction
Parts and materials
Butterfly valves GG25-316L-NBR are designed for use as shut-off or regulating valves for flow control in heat supply systems, water supply systems, in technological processes of food, chemical, oil and gas, pulp and paper and other industries. Butterfly valves should be installed only between collar flanges.
Technical characteristics of water butterfly valve DNOVA GG25-316L-NBR body material - cast iron GG25, disk material - stainless steel 316L, seal - NBR with electric actuator DNOVA 220V:
|
Nominal diameter DN, mm |
40–300 |
|
Operating pressure PN, bar |
16 |
|
Working medium temperature t, °C |
From -20 to +90 |
|
Working medium |
Water, mineral oils, hydrocarbons, oils, fats |
|
Flow direction |
Two-way |
|
Body material |
Cast iron GG25 |
Materials of water butterfly valve DNOVA GG25-316L-NBR body material - cast iron GG25, disk material - stainless steel 316L, seal - NBR with electric actuator DNOVA 220V:
|
№ |
Part name |
Material |
|
1 |
Body |
Cast iron GG25 |
|
2 |
Seat seal |
NBR |
|
3 |
Disc |
Stainless steel 316L |
|
4 |
Stem |
SS AISI 416 |
|
5 |
Pin |
SS AISI 420 |
|
6 |
Bushing |
PTFE |
|
7 |
Sealing ring |
NBR |
|
8 |
Plate |
Carbon steel |

Overall and installation dimensions of water butterfly valve DNOVA GG25-316L-NBR body material - cast iron GG25, disk material - stainless steel 316L, seal - NBR with electric actuator DNOVA 220V:
| DN | Electric actuator model | E, mm | L1, mm | A, mm | C, mm | Weight, kg |
|---|---|---|---|---|---|---|
| 40 | 003 MINI | 123 | 113 | 3,356 | ||
| 40 | 003 | 123 | 113 | 4,056 | ||
| 50 | 003 MINI | 43 | 123 | 131 | 113 | 3,356 |
| 50 | 003 | 43 | 123 | 131 | 113 | 4,056 |
| 65 | 005 | 46 | 160 | 140 | 146 | 5,933 |
| 80 | 005 | 46 | 160 | 150 | 146 | 6,177 |
| 100 | 008 | 52 | 160 | 163 | 146 | 7,72 |
| 125 | 015 | 56 | 189 | 178 | 163 | 9,89 |
| 150 | 015 | 56 | 189 | 191 | 163 | 11,23 |
| 200 | 030 | 60 | 268 | 238 | 212 | 25,07 |
| 250 | 040 | 68 | 268 | 285 | 212 | 31,22 |
| 300 | 060 | 78 | 268 | 315 | 212 | 41,83 |

Characteristics of 220 V electric actuators
| Actuator model | Torque | Working time |
|---|---|---|
| Nm | sec | |
| DNOVA-003 220V MINI | 30 | 20 |
| DNOVA 003 blue | 30 | 25 |
| DNOVA-003 220V | 30 | 20 |
| DNOVA-005 220V | 50 | 30 |
| DNOVA-008 220V | 80 | 30 |
| DNOVA-015 220V | 150 | 30 |
| DNOVA-030 220V | 300 | 30 |
| DNOVA-040 220V | 400 | 30 |
| DNOVA-060 220V | 600 | 30 |
| Actuator model | Power | Current | Weight | Size of rod square |
|---|---|---|---|---|
| W | A | kg | mm | |
| DNOVA-003 220V MINI | 8 | 0,15 | 1,4 | 11 |
| DNOVA 003 blue | 25 | 0,1 | 1,2 | 11 |
| DNOVA-003 220V | 9 | 0,15 | 2,1 | 11 |
| DNOVA-005 220V | 10 | 0,25 | 3,6 | 14 |
| DNOVA-008 220V | 10 | 0,25 | 3,6 | 14 |
| DNOVA-015 220V | 15 | 0,33 | 4,6 | 17 |
| DNOVA-030 220V | 45 | 0,31 | 13,4 | 22 |
| DNOVA-040 220V | 60 | 0,33 | 13,8 | 22 |
| DNOVA-060 220V | 90 | 0,33 | 14 | 27 |
- Body material
- حديد الزهر GG25/EN-GJL-250
- Maximum allowable temperature
- 90 درجة مئوية
- Connection type
- حواف مدمجة
- Control type
- المحرك الكهربائي
- Nominal pressure
- 16 بار
- Type of seal
- إن بي آر
- Disc material
- الفولاذ المقاوم للصدأ AISI 316L/1.4404
- Voltage
- 220 فولت
- Actuator cycle time
- 25 ثانية
- Valve feedback
- مفاتيح الحد
- Explosion-proof
- لا
- Thermal protection
- نعم
- Torque
- 20 نيوتن متر
- Pneumatic actuator
- لا
- Manual override
- نعم
- Limit switches
- لا
- Country of origin
- الصين
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.