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Lurmark Pneumatic Boom Section Shutoff Valve won't shut.
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<blockquote data-quote="DrWazzock" data-source="post: 7540430" data-attributes="member: 2119"><p>Lower pressures help the valves close but one particular valve won’t even close at 3 barg. I need high pressure for fine spray on the beet.</p><p>It didn’t help that one of the valves blew out of the manifold while I was fiddling with it. Was testing with clean water fortunately but was completely soaked through by the time I’d climbed down the ladder. I bought a cheap secondhand replacement that my dealer kindly found in his scrap heap. The threads are good so it stays in the manifold but it too won’t close at any sort of reasonable spraying pressure yet I can’t see anything wrong with it. I have swapped to control air lines over and they work fine.</p><p>It’s something to do with valve. Wonder if they have been fitted wrong way round by previous owner?</p></blockquote><p></p>
[QUOTE="DrWazzock, post: 7540430, member: 2119"] Lower pressures help the valves close but one particular valve won’t even close at 3 barg. I need high pressure for fine spray on the beet. It didn’t help that one of the valves blew out of the manifold while I was fiddling with it. Was testing with clean water fortunately but was completely soaked through by the time I’d climbed down the ladder. I bought a cheap secondhand replacement that my dealer kindly found in his scrap heap. The threads are good so it stays in the manifold but it too won’t close at any sort of reasonable spraying pressure yet I can’t see anything wrong with it. I have swapped to control air lines over and they work fine. It’s something to do with valve. Wonder if they have been fitted wrong way round by previous owner? [/QUOTE]
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Lurmark Pneumatic Boom Section Shutoff Valve won't shut.
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