While pump selection on modest sprayers may be limited to hand- or galvanising - manner pump , bombastic sprayers extend more options ; for example , electric- , hydraulic- and PTO - power pumps . Desired pressure and volume are important , but should n’t be the only resolve factors .
“ We use Hypro hair curler pumps with our belittled 3 - point - climb sprayers , ” order Ernie Zimmerman of CropCare Equipment . “ They make out in three different types — cast branding iron ( thriftiness ) ; ni - resist , which is more resistant to wear ; and their Silver Series that is harder and get into better than unstained steel . The Silver Series costs three times that of cast Fe but hold out seven times longer . If you are fit to be using it quite a bit , the more expensive heart is the cheapest in the recollective outpouring . ”
scratchy products , such as chemicals like glyphosate , can cause wear and lead to former replacement in cast - Fe pump . These same products can cause wear job with nozzle tips .
Peter DeHaan , applications engineer for TeeJet Technologies , warns that acid content in spray ware can also speed spray - tip worsening . He says inexpensive versions of glyphosate , which are commonly non - acidulent , can on occasion have low pH values . Other non - glyphosate product on the market are traditionally acid based , which can guide to tip deterioration .
“ If you are looking at plastic lead , acetal plastic wears well , but UHMPE [ ultra - high molecular polythene ] has potential to increase the hooter ’s wear life and is resistant to acids , ” says DeHaan . “ untainted sword has a little longer article of clothing than charge plate , but not as much as people once thought . Ceramic tips have even better fag out , but are very unannealed . cast them on the ground or bang them , and they can break . Brass has great chemical compatibility but is susceptible to wear . You get substantially tire out of stainless , and charge plate is more cost efficacious . ”
Picking the correct nebuliser tip for the app is even tough . Options include strong flow , flat buff , duple issue , air installation and other variations . Your destination is to get maximal reportage and minimal drift or off - target contact . expectant - droplet , low - force per unit area program program was once recommended for minimum drift and minuscule - droplet , mellow - pressure urge for maximal coverage . melodic line induction nozzles mix air with the chemical , creating large droplet and decreasing driftable fines . This allows applier to spray in sensitive areas and windy conditions while maintaining well-heeled operating pressures .
disregarding of the sprayer wind used , DeHaan advocate keep an spear carrier to check for wear on tips in use . “ Fill the storage tank with water and launch the roaring , ” he says . “ By substituting the unused tip for a used backsheesh , you may compare their flow rate . Measure the rate of flow charge per unit each point fork out in a mo . If the variation from tip to tip is more than 10 percentage , it ’s clip to replace lead . ”
This article first appeared in the March / April 2010Hobby farm .
