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- Butt welding fittings
- bends
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- caps and heads
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- branch saddles
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- ANSI / ASME
- Industrial valves
- ball valves
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- control technology
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- welding neck flanges
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- plate flanges
- loose plate flanges
- collars
- flange-fittings
- ANSI/ ASME
- other
- Systems
- TEEKAY
- Victaulic
- press fittings
- quick couplings
- clamp connections
- cutting rings
- DIN 11864/ DIN 11853
- railing construction
- Beverage fittings
- unions
- fittings
- pipe clamps
- Tri-Clamp
- valves & cocks
- flange connections
- inspection glasses
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- spray balls
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measures and values
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current selection
union nutUM.
union nut
Thread:
Whitworth-Pipe thread according to DIN / ISO 228-G
Type of thread:
Inner- and outer cylindrical thread
Application:
not for in thread sealing connections
This thread is mainly used for the mechanical connection of fittings and valves.
The connection is sealed by pressing two sealing surfaces against each other outside of the thread and by
inserting a suitable seal between them.
| T | Number of thread | h | P | i |
|---|---|---|---|---|
| 1/8" | 28 | 0,581 | 0,907 | 8 |
| 1/4" | 19 | 0,856 | 1,337 | 12 |
| 3/8" | 19 | 0,856 | 1,337 | 12 |
| 1/2" | 14 | 1,162 | 1,814 | 14 |
| 3/4" | 14 | 1,162 | 1,814 | 16 |
| 1" | 11 | 1,479 | 2,309 | 18 |
| 1 1/4" | 11 | 1,479 | 2,309 | 20 |
| 1 1/2" | 11 | 1,479 | 2,309 | 22 |
| 2" | 11 | 1,479 | 2,309 | 24 |
| 2 1/2" | 11 | 1,479 | 2,309 | |
| 3" | 11 | 1,479 | 2,309 | |
| 4" | 11 | 1,479 | 2,309 | |
| 5" | 11 | 1,479 | 2,309 | |
| 6" | 11 | 1,479 | 2,309 |
| T | Flanks-Ø | max. O-Ø for OT | min. Core-Ø for IT |
|---|---|---|---|
| 1/8" | 9,147 | 9,728 | 8,566 |
| 1/4" | 12,301 | 13,157 | 11,445 |
| 3/8" | 15,806 | 16,662 | 14,950 |
| 1/2" | 19,793 | 20,955 | 18,631 |
| 3/4" | 25,279 | 26,441 | 24,117 |
| 1" | 31,770 | 33,249 | 30,291 |
| 1 1/4" | 40,431 | 41,910 | 38,952 |
| 1 1/2" | 46,324 | 47,803 | 44,845 |
| 2" | 58,135 | 59,614 | 56,656 |
| 2 1/2" | 73,705 | 75,184 | 72,226 |
| 3" | 86,405 | 87,884 | 84,926 |
| 4" | 111,551 | 113,030 | 110,072 |
| 5" | 136,951 | 138,430 | 135,472 |
| 6" | 162,830 | 163,830 | 160,872 |
Product specification
<p><b>Thread:</b></p><p>Whitworth-Pipe thread according to DIN / ISO 228-G</p><br><p><b>Type of thread:</b></p><p>Inner- and outer cylindrical thread</p><br><p><b>Application:</b></p><p>not for in thread sealing connections</p><br><p><span class="tDescSmall">This thread is mainly used for the mechanical connection of fittings and valves.</span></p><p><span class="tDescSmall"> The connection is sealed by pressing two sealing surfaces against each other outside of the thread and by</span></p><p><span class="tDescSmall">inserting a suitable seal between them.</span></p><br><br><hr><br><br><table class="techDescTable"><thead><tr><th><b>T</b></th><th><b>Number of thread</b></th><th><b>h</b></th><th><b>P</b></th><th><b>i</b></th></tr> </thead><tbody><tr class="Even"><td>1/8"</td><td>28</td><td>0,581</td><td>0,907</td><td>8</td></tr><tr class="UnEven"><td>1/4"</td><td>19</td><td>0,856</td><td>1,337</td><td>12</td></tr><tr class="Even"><td>3/8"</td><td>19</td><td>0,856</td><td>1,337</td><td>12</td></tr><tr class="UnEven"><td>1/2"</td><td>14</td><td>1,162</td><td>1,814</td><td>14</td></tr><tr class="Even"><td>3/4"</td><td>14</td><td>1,162</td><td>1,814</td><td>16</td></tr><tr class="UnEven"><td>1"</td><td>11</td><td>1,479</td><td>2,309</td><td>18</td></tr><tr class="Even"><td>1 1/4"</td><td>11</td><td>1,479</td><td>2,309</td><td>20</td></tr><tr class="UnEven"><td>1 1/2"</td><td>11</td><td>1,479</td><td>2,309</td><td>22</td></tr><tr class="Even"><td>2"</td><td>11</td><td>1,479</td><td>2,309</td><td>24</td></tr><tr class="UnEven"><td>2 1/2"</td><td>11</td><td>1,479</td><td>2,309</td><td><br></td></tr><tr class="Even"><td>3"</td><td>11</td><td>1,479</td><td>2,309</td><td><br></td></tr><tr class="UnEven"><td>4"</td><td>11</td><td>1,479</td><td>2,309</td><td><br></td></tr><tr class="Even"><td>5"</td><td>11</td><td>1,479</td><td>2,309</td><td><br></td></tr><tr class="UnEven"><td>6"</td><td>11</td><td>1,479</td><td>2,309</td><td><br></td></tr></tbody></table><br><table class="techDescTable"><thead><tr><th><b>T</b></th><th><b>Flanks-Ø</b></th><th><b>max. O-Ø for OT</b></th><th><b>min. Core-Ø for IT</b></th></tr> </thead><tbody><tr class="Even"><td>1/8"</td><td>9,147</td><td>9,728</td><td>8,566</td></tr><tr class="UnEven"><td>1/4"</td><td>12,301</td><td>13,157</td><td>11,445</td></tr><tr class="Even"><td>3/8"</td><td>15,806</td><td>16,662</td><td>14,950</td></tr><tr class="UnEven"><td>1/2"</td><td>19,793</td><td>20,955</td><td>18,631</td></tr><tr class="Even"><td>3/4"</td><td>25,279</td><td>26,441</td><td>24,117</td></tr><tr class="UnEven"><td>1"</td><td>31,770</td><td>33,249</td><td>30,291</td></tr><tr class="Even"><td>1 1/4"</td><td>40,431</td><td>41,910</td><td>38,952</td></tr><tr class="UnEven"><td>1 1/2"</td><td>46,324</td><td>47,803</td><td>44,845</td></tr><tr class="Even"><td>2"</td><td>58,135</td><td>59,614</td><td>56,656</td></tr><tr class="UnEven"><td>2 1/2"</td><td>73,705</td><td>75,184</td><td>72,226</td></tr><tr class="Even"><td>3"</td><td>86,405</td><td>87,884</td><td>84,926</td></tr><tr class="UnEven"><td>4"</td><td>111,551</td><td>113,030</td><td>110,072</td></tr><tr class="Even"><td>5"</td><td>136,951</td><td>138,430</td><td>135,472</td></tr><tr class="UnEven"><td>6"</td><td>162,830</td><td>163,830</td><td>160,872</td></tr></tbody></table>
material
V2A >>
V4A >>
1.4571 >>
316L >>
You can find the accordings material data sheets in the category Interesting facts
measures and values
stocks and pricing
downloads
CAD
| dimension | File Download (3D-PDF) | File Download (STEP) |
|---|---|---|
| 3/4" | heco_ÜM-034-000-G.pdf | heco_ÜM-034-000-G.step |
| 1" | heco_ÜM-100-000-G.pdf | heco_ÜM-100-000-G.step |
| 1 1/4" | heco_ÜM-114-000-G.pdf | heco_ÜM-114-000-G.step |
| 1 1/2" | heco_ÜM-112-000-G.pdf | heco_ÜM-112-000-G.step |
| 2" | heco_ÜM-200-000-G.pdf | heco_ÜM-200-000-G.step |
associated articles
union conical, F/F
union conical, F/M
union conical, M/M
Ask our experts
phone
Chat
We are online!
For technical questions about our products or instructions for handling our website please consult experts in our chat.
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Stainless steel unions conical seat union nuts
union nutUM.
Product specification
union nut
Thread:
Whitworth-Pipe thread according to DIN / ISO 228-G
Type of thread:
Inner- and outer cylindrical thread
Application:
not for in thread sealing connections
This thread is mainly used for the mechanical connection of fittings and valves.
The connection is sealed by pressing two sealing surfaces against each other outside of the thread and by
inserting a suitable seal between them.
| T | Number of thread | h | P | i |
|---|---|---|---|---|
| 1/8" | 28 | 0,581 | 0,907 | 8 |
| 1/4" | 19 | 0,856 | 1,337 | 12 |
| 3/8" | 19 | 0,856 | 1,337 | 12 |
| 1/2" | 14 | 1,162 | 1,814 | 14 |
| 3/4" | 14 | 1,162 | 1,814 | 16 |
| 1" | 11 | 1,479 | 2,309 | 18 |
| 1 1/4" | 11 | 1,479 | 2,309 | 20 |
| 1 1/2" | 11 | 1,479 | 2,309 | 22 |
| 2" | 11 | 1,479 | 2,309 | 24 |
| 2 1/2" | 11 | 1,479 | 2,309 | |
| 3" | 11 | 1,479 | 2,309 | |
| 4" | 11 | 1,479 | 2,309 | |
| 5" | 11 | 1,479 | 2,309 | |
| 6" | 11 | 1,479 | 2,309 |
| T | Flanks-Ø | max. O-Ø for OT | min. Core-Ø for IT |
|---|---|---|---|
| 1/8" | 9,147 | 9,728 | 8,566 |
| 1/4" | 12,301 | 13,157 | 11,445 |
| 3/8" | 15,806 | 16,662 | 14,950 |
| 1/2" | 19,793 | 20,955 | 18,631 |
| 3/4" | 25,279 | 26,441 | 24,117 |
| 1" | 31,770 | 33,249 | 30,291 |
| 1 1/4" | 40,431 | 41,910 | 38,952 |
| 1 1/2" | 46,324 | 47,803 | 44,845 |
| 2" | 58,135 | 59,614 | 56,656 |
| 2 1/2" | 73,705 | 75,184 | 72,226 |
| 3" | 86,405 | 87,884 | 84,926 |
| 4" | 111,551 | 113,030 | 110,072 |
| 5" | 136,951 | 138,430 | 135,472 |
| 6" | 162,830 | 163,830 | 160,872 |
measures and values
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stocks and pricing
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You can change back to desktop view.
downloads
CAD
| dimension | File Download (3D-PDF) | File Download (STEP) |
|---|---|---|
| 3/4" | heco_ÜM-034-000-G.pdf | heco_ÜM-034-000-G.step |
| 1" | heco_ÜM-100-000-G.pdf | heco_ÜM-100-000-G.step |
| 1 1/4" | heco_ÜM-114-000-G.pdf | heco_ÜM-114-000-G.step |
| 1 1/2" | heco_ÜM-112-000-G.pdf | heco_ÜM-112-000-G.step |
| 2" | heco_ÜM-200-000-G.pdf | heco_ÜM-200-000-G.step |
associated articles
union conical, F/F
union conical, F/M
union conical, M/M
Ask our experts
phone
Chat
We are online!
For technical questions about our products or instructions for handling our website please consult experts in our chat.
offline
Availability
We are online on Monday till Friday from 8am to 5pm.
E-Mail
Business card