Shut-off valves of type 15с57нж, 15лс57нж, 15нж57нж
Shut-off valves are designed for installation at pipelines as closure devices.
Sealing surfaces – stainless steel.
The following grades of steel are used for manufacturing of valve body: 09Г2С, 20, 08Х18Н10Т, 10Х17Н13М2Т, 06ХН28МДТ..
Valves are designed to be used in conditions of moderate and cold (NL) macroclimatic areas in accordance with GOST 15150.
- Temperature of operating medium – n.e. +3500 C,
Technical characteristics
| Symbol |
DN,
mm |
PN |
| 10, 16, 20, 25 MPa |
| d |
L |
Н |
| КК 315 |
15 |
G1/2 |
90 |
160 |
| КК 320 |
20 |
G3/4 |
110 |
10 |
| КК 325 |
25 |
G1 |
130 |
|
| Symbol |
PN |
| 10, 16, 20, 25 MPa |
| d1 |
d2 |
L |
| КК 315 |
12 |
19 |
80 |
| КК 320 |
18 |
26 |
96 |
| КК 325 |
25 |
33 |
120 |
|
| Symbol |
PN,MPa |
| 10 |
16 |
20 |
25 |
| D |
L |
L1 |
D |
L |
L1 |
D |
L |
L1 |
D |
L |
L1 |
| КК 315 |
105 |
134 |
240 |
105 |
134 |
250 |
120 |
216 |
336 |
120 |
216 |
360 |
| КК 320 |
125 |
158 |
276 |
125 |
158 |
281 |
130 |
230 |
346 |
130 |
230 |
394 |
| КК 325 |
135 |
182 |
308 |
135 |
182 |
308 |
150 |
254 |
390 |
150 |
254 |
422 |
