Description
Wedge gate valves are designed for installation on a pipeline as a shut-off device in water supply systems and the chemical industry.
The wedge, connected to the spindle, is lowered or raised depending on the direction of rotation of the handwheel, closing or opening the flow section of the gate body.
Technical parameters of wedge gate valves 30nzh15nzh DNOVA GVWR3131M-2W-F-S DN50-80 Ru40 flanged, with GAIR hand wheel
|
Perimeter |
Meaning |
|
Nominal diameter DN, mm |
50-80 |
|
Working pressure PN, bar |
40 |
|
Temperature of working environment t, ⁰C |
From -29 to +425 |
|
Working environment |
Water, steam, petroleum products and other liquid or gaseous media that are neutral to the materials used |
|
Direction of flow |
Double sided |
|
Control type |
Manual |
|
Connection type |
Flanged |
|
Body material |
Stainless steel 304 |
|
Material of the shut-off element (wedge) |
Stainless steel 304 |
|
Application areas |
Heating and water supply systems; industrial pipelines |
|
Service life, years |
15 |
Sketch of dimensions of wedge gate valves 30nz15nz DNOVA GVWR3131M-2W-FS DN50-80 RU40 flanged, with handwheel GAIR
Overall and installation dimensions of wedge gate valves 30nz15nz DNOVA GVWR3131M-2W-FS DN50-80 RU40 flanged, with handwheel GAIR
|
D.N. |
L , mm |
D , mm |
D1 , mm |
D2 , mm |
b , mm |
f , mm |
z–d , mm |
Weight, kg |
|
50 |
250 |
165 |
125 |
102 |
20 |
2 |
4-18 |
12 |
|
80 |
280 |
200 |
160 |
138 |
24 |
2 |
8-18 |
31 |
Sketch of materials of wedge gate valves 30nz15nz DNOVA GVWR3131M-2W-FS DN50-80 RU40 flanged, with handwheel GAIR
Materials of wedge gate valves 30nz15nz DNOVA GVWR3131M-2W-FS DN50-80 RU40 flanged, with handwheel GAIR
|
Item No. |
Part name |
Material |
|
1 |
Frame |
stainless steel 304 |
|
2 |
Saddle seal |
stainless steel 304 |
|
3 |
Wedge |
stainless steel 304 |
|
4 |
Spindle |
stainless steel 304 |
|
5 |
Pad |
Stainless steel 304 + thermally expanded graphite (TEG) |
|
6 |
Bolt |
stainless steel 304 |
|
7 |
screw |
stainless steel 304 |
|
8 |
Bushing seal |
stainless steel 304 |
|
9 |
Sleeve |
stainless steel 304 |
|
10 |
Spindle seal |
thermally expanded graphite (TEG) |
|
11 |
Seal |
stainless steel 304 |
|
12 |
Bolt |
stainless steel 304 |
|
13 |
Bracket |
stainless steel 304 |
|
14 |
Washer |
ZCuAl10Fe3 alloy |
|
15 |
Steering wheel |
cast iron KTH300 |
Specifications
Delivery
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