In detail
What it is made of
How it works
Rising-stem wedge gate
The number that matters
Nominal pressure
25bar
The pressure class of the valve body at 20 °C. Working limits depend on the medium and its temperature.
Construction
Parts and materials
The wedge gate valve is designed to be installed on the pipeline as a shut-off device in water supply systems and chemical industry.
The wedge connected to the spindle is lowered or raised depending on the direction of rotation of the hand wheel, closing or opening the passage section of the gate valve body.
The wedge is designed to be installed on the pipeline as a shut-off device in water supply systems and chemical industry.
Overall and installation dimensions of wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, with OST-flange and round stem under electric actuator
|
DN |
L |
D |
D1 |
D2 |
b |
f |
z–d |
OST 26-07-763-73 |
Weight |
|
300 |
500 |
485 |
430 |
390 |
40 |
4 |
16-30 |
type B |
270 |
Sketch of dimensions of wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, with OST-flange and round stem under electric actuator
Seating dimensions of wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, with OST-flange and round stem under electric actuator
| DN | Type | n | HxH | D | D1 | d | d1 | h | h1 | c |
| 300 | B | 22 | 200x200 | 155 | 220 | 70 | 84 | 20 | 10 | 6.5 |
Wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, body - carbon steel WCB, seal - metal, with OST-flange and round stem under electric actuator - sketch of dimensions for seating
Materials of wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, with OST-flange and round stem under electric actuator
|
№ |
Part name |
Material |
|
1 |
Case |
steel WCB+13Cr |
|
2 |
Wedge |
steel WCB+13Cr |
|
3 |
Stem |
steel 2Cr13 |
|
4 |
Bolt |
steel 45 |
|
5 |
Nut |
steel 35 |
|
6 |
Gasket |
stainless steel+graphite |
|
7 |
Cover |
steel WCB |
|
8 |
Spindle seal |
flexible graphite |
|
9 |
pin |
carbon steel |
|
10 |
Gland packing |
carbon steel |
|
11 |
Nut |
steel 45 |
|
12 |
Bolt |
steel 35 |
|
13 |
staple |
steel WCB |
|
14 |
Bearing |
- |
|
15 |
cuff |
- |
|
16 |
Stem nut |
brass |
|
17 |
Casing |
steel ASTM A29 1035 |
Sketch of materials wedge gate valves DNOVA GAIR GVWR3434M-2W-F-OST flanged GAIR, with OST-flange and round stem under electric actuator
- Body material
- Carbon steel
- Stopper Material
- carbon steel
- Maximum allowable temperature
- 425 °C
- Connection type
- Flanged
- Control type
- Stem only
- Gate valve type
- Wedge Gate Valve
- Nominal pressure
- 25 bar
- Type of seal
- Metal
- 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.