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Vacuum Limiting Valve
| JC54 | 22/01/2022 15:28:19 |
 154 forum posts 14 photos | Has anybody got a drawing for a Vacuum Limiting/relief valve please? I think that one appeared in Model Engineer recently but I am unable to access archive even though I have a digital subscription until my renewal. I have found a drawing in ME from 1981 but believe there was a more recent drawing. Many thankc John |
| Jager | 23/01/2022 11:52:27 |
| 44 forum posts 5 photos | Wouldn't it take the form of a boiler safety valve installed in reverse?
|
| Nick Clarke 3 | 23/01/2022 11:59:22 |
 1607 forum posts 69 photos | Are you talkng for use with an ejector or with an electric vacuum pump? |
| bernard towers | 24/01/2022 10:05:16 |
| 1221 forum posts 161 photos | Some nice images on google and cutaways looks like prv in reverse |
| JC54 | 24/01/2022 15:56:05 |
154 forum posts 14 photos | I am asking for a non computer friend so not sure myself. The one that I have seen looks like a "mushroom" with an adjuster on the bottom, it has a rubber/plastic diaphragm inside. The top main piece was about 20mm across. The nearest thing that I can think of similar appearance is "Petrol Miser" from the 1960s. JC |
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