Lug butterfly valve without flange clockwise type 125 DN50-200
Technical design
Technical design
Lever operated: lever made from ductile iron, blue epoxy coated (thickness 250 microns mini).
| 100 | Lever operated | 305 | 28 | 10 16 | 10.700 | 208521 |
Features
| DN | PN10 | PN16 | PN25 | K | H | D | E | Dk | d | N | h | F | G | Q | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| K1 | M | Number | K1 | M | Number | K1 | M | Number | ||||||||||||
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | |||
| 50 | 125 | 16 | 4 | 125 | 16 | 4 | 125 | 16 | 4 | 143 | 67 | 43 | 100 | 70 | 9 | 55 | 4 | 19 | 14 | 31 |
| 60 | 135 | 16 | 4 | 135 | 16 | 4 | 135 | 16 | 8 | 155 | 73 | 46 | 100 | 70 | 9 | 55 | 4 | 19 | 14 | 46 |
| 65 | 145 | 16 | 4 | 145 | 16 | 4 | 145 | 16 | 8 | 155 | 73 | 46 | 100 | 70 | 9 | 55 | 4 | 19 | 14 | 46 |
| 80 | 160 | 16 | 8 | 160 | 16 | 8 | 160 | 16 | 8 | 162 | 80 | 46 | 100 | 70 | 9 | 55 | 4 | 19 | 14 | 62 |
| 100 | 180 | 16 | 8 | 180 | 16 | 8 | 190 | 20 | 8 | 181 | 100 | 52 | 100 | 70 | 9 | 55 | 4 | 19 | 14 | 90 |
| 150 | 240 | 20 | 8 | 240 | 20 | 8 | 250 | 24 | 8 | 210 | 122 | 56 | 100 | 70 | 9 | 55 | 4 | 21 | 17 | 135 |
| 200 | 295 | 20 | 8 | 295 | 20 | 12 | 310 | 24 | 12 | 240 | 155 | 60 | 150 | 102 | 11 | 70 | 4 | 25 | 22 | 189 |
Material and coating
| Item | Description | Material | Coating |
|---|---|---|---|
| 1 | Body | Ductile Iron | Blue epoxy 250 microns |
| 2 | Disc | Stainless Steel 304 | |
| 3 and14 | Seal | EPDM | |
| 4 and 5 | Shaft | Stainless Steel X20Cr13 | |
| 9 | O-ring | EPDM | |
| 10 | Plug | HDPE |
Hydraulic characteristics
The headloss ∆P is expressed by the flow coefficient Kv that is the flow at a temperature of 20°C crossing the valve by triggering a headloss of 1 bar.
Those figures are tied by the simple following relation:
with Q in m³/h and Kv in m³/h, ∆P in bar.
Kv values depending on the degree of the valve opening:
| DN | Degree of valve opening | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| mm | 10° | 20° | 30° | 40° | 50° | 60° | 70° | 80° | 90° |
| 50 | - | 0.9 | 5.9 | 14.0 | 28.0 | 51.0 | 88.0 | 111.0 | 112.0 |
| 60-65 | - | 2.4 | 11.0 | 26.0 | 49.0 | 87.0 | 156.0 | 232.0 | 249.0 |
| 80 | - | 5.0 | 20.0 | 47.0 | 87.0 | 151.0 | 274.0 | 442.0 | 492.0 |
| 100 | - | 9.2 | 37.0 | 84.0 | 154.0 | 260.0 | 471.0 | 789.0 | 895.0 |
| 150 | - | 22.0 | 108.0 | 221.0 | 381.0 | 621.0 | 1062.0 | 1802.0 | 2099.0 |
| 200 | - | 53.0 | 204.0 | 392.0 | 657.0 | 1050.0 | 1731.0 | 2946.0 | 3715.0 |
Conformity to Standards
- Face to face dimensions EN 558-1 serie 20
- Flanges of connection to pipes EN 1092-2
- Pressure tests EN 12 266-1
Drinking water approval
Epoxy coating and the rubber satisfy the requirements for drinking water of KTW and WRC - DGS in progress.
Marking
On the label:
Necessary screw kits to install on the valve
In order to install the valve, it’s necessary to order corresponding screw kits.
Documents
Documents
9 results
