Parts
How it works
Quarter-turn lever
Butterfly disc
Limit-switch box
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 GGG50-316L-EPDM and bracket 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 GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel AISI 316L, seal - EPDM with handle, with two LS-103 250V limit switches and a bracket for mounting the limit switches:
|
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 |
|
Connection to pipeline |
Interflange |
|
Body material |
Cast iron GGG50 |
Dimensions of water butterfly valve DNOVA 316L-316L-EPDM body material - stainless steel aisi 316l, disk material - stainless steel AISI 316L, seal - EPDM with electric actuator GZ-OF 220V:
| DN | A | B | C | ØD | d | G | CH | Passing section diameter |
| 40 | 105 | 55 | 33 | 75 | 10 | 30 | 9x9 | 50 |
|
DN |
A |
B |
C |
ØD |
d |
G |
CH (stem) |
ISO |
Torque |
Weight |
|
mm |
Nm |
kg |
||||||||
|
50 |
161 |
80 |
43 |
84.5 |
10 |
30 |
9x9 |
F05 |
23 |
2.2 |
|
65 |
175 |
89 |
45 |
104.5 |
10 |
30 |
9x9 |
F05 |
29 |
2.5 |
|
80 |
181 |
95 |
45 |
123.5 |
10 |
30 |
9x9 |
F05 |
39 |
2.9 |
|
100 |
200 |
114 |
52 |
139.5 |
10 |
30 |
11x11 |
F07 |
59 |
3.8 |
|
125 |
213 |
127 |
55 |
169.5 |
10 |
30 |
14x14 |
F07 |
84 |
5.8 |
|
150 |
226 |
139 |
55 |
196 |
10 |
30 |
14x14 |
F07 |
86 |
7.4 |
|
200 |
260 |
175 |
60 |
247 |
12 |
30 |
17x17 |
F10 |
220 |
12.5 |
|
250 |
292 |
203 |
68 |
304 |
12 |
40 |
22x22 |
F10 |
350 |
18.9 |
|
300 |
337 |
242 |
78 |
358 |
12 |
40 |
22x22 |
F10 |
420 |
27.0 |
Material specification of water butterfly valve DNOVA GGG50-316L-EPDM body material - cast iron GGG50, disk material - stainless steel AISI 316L, seal - EPDM with handle, with two LS-103 250V limit switches and a bracket for mounting the limit switches:
|
№ |
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 |
Bushing |
Steel AISI 201 |
|
10 |
Plug |
Plastic |
- Body material
- Cast iron GGG50/EN-GJS-500-7
- Maximum allowable temperature
- 120 °C
- Connection type
- Compact flanged
- Nominal pressure
- 16 bar
- Type of seal
- EPDM
- Disc material
- Stainless steel AISI 316L/1.4404
- Explosion-proof
- No
- Torque
- 59 Nm
- Pneumatic actuator
- No
- Manual override
- Yes
- Limit switches
- Yes
- 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.