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| Product Name：Forged Steel Bellows Globe Valve |
| Product Classification：Globe valve |
| Product Introduction： |
Forged steel bellows valve is mainly applied to various systems of control fire station road, or turn off the pipeline medium. Suitable medium: water, steam and other non-corrosive media. Forged steel bellows valve and other valve products are characterized by high temperature and pressure compared to the unique self-sealing design, the higher the pressure, the more reliable seal. As the technical performance characteristics, the special conditions the formation of the product but also other characteristics of the product can not be replaced. |
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| Description |
Parameters |
Size Chart |
Application |
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1, forged steel bellows valve reasonable structure, reliable sealing, excellent performance, attractive appearance;
2, the sealing surface of Co cemented carbide hardfacing, wear, corrosion, abrasion resistance and long service life;
3, stem quenched and surface nitriding, has good corrosion and abrasion resistance;
4, double sealed, more reliable performance;
5, the stem down position indicator is more intuitive;
6, part material, flange and butt size according to actual conditions or reasonable matching user requirements to meet the needs of a variety of projects.
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Description of the main parts of the materia
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NO. |
Parts name |
CS to ASTM |
AS to ASTM |
SS to ASTM |
|
Type A105N |
Type A182 F22 |
Type A182 F304(L) |
Type A182 F316(L) |
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1 |
Valve body |
A105N |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
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2 |
Seat |
A276 420 |
A276 304 |
A276 304(L) |
A276 316(L) |
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3 |
Gate |
A276 420 |
A276 304 |
A276 304(L) |
A276 316(L) |
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4 |
Stem |
A182 F6a |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
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5 |
Bellows |
304 |
304(L) |
316(L) |
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6 |
Valve cover |
A105N |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
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7 |
Filler |
Flexible graphite |
PTFE |
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8 |
Hanging bolt / nut |
A193 B8/A 194 2H |
A193 B8/A 194 4 |
A193 B8/A194 8 |
A193 B8/A194 8M |
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9 |
Filler plate |
A276 420 |
A182 F304 |
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10 |
Filler plate |
A105N |
A182 F304 |
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11 |
Stem nut |
A276 420 |
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12 |
Hand wheel |
A197 A182 F304 |
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13 |
Extended set of |
A105 |
A182 F22 |
A182 F304(L) |
A182 F316(L) |
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14 |
Under carriage |
A182 F304 |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
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15 |
On extension units |
A182 F304 |
A182 F304 |
A182 F304(L) |
A182 F316(L) |
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16 |
Screw |
A276 420 |
A182 F304 |
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17 |
Locking nut |
A194 2H |
A194 4 |
A194 8 |
A194 8M |
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Medium |
Water, steam, oil, etc. |
Water, steam, oil, etc. |
Nitric acid, acetic acid, etc. |
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Temperature |
-29°C～425°C |
-29°C～550°C |
-29°C～200°C |
Main dimensions
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NPS |
Necking |
3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
2 |
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Full bore |
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3/8 |
1/2 |
3/4 |
1 |
11/4 |
11/2 |
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L1 |
79 |
79 |
92 |
111 |
120 |
120 |
140 |
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L |
79 |
79 |
92 |
111 |
120 |
152 |
172 |
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H（On） |
220 |
220 |
225 |
244 |
321 |
321 |
347 |
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W |
100 |
100 |
100 |
125 |
160 |
160 |
180 |
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Weight |
Bolted |
3.2 |
3.0 |
4.8 |
7.9 |
11.0 |
16.8 |
25.2 |
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Welded |
3.0 |
2.8 |
4.8 |
7.0 |
9.6 |
13.5 |
20.25 |
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產(chǎn)品外形及結(jié)構(gòu)尺寸示意圖
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| Forged steel globe valve maintenance are generally in the open position when the state, maintenance of special circumstances, choose to close. Other valves can not be any open spaces punished. Forged steel valve must be in conservation when turned off, ensure that the grease filled seal ring groove along, if the open position, sealing resin flow channel or directly fall into the valve chamber, resulting in waste. Valve greasing, the grease effect often overlooked issue. Operation pressure grease, grease, switching position are normal. However, to ensure that the valve greasing effect, and sometimes need to open or close the valve, on lubrication check to make sure the ball valve or gate valve surface lubrication evenly.
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