F.E. Myers Air Blast Orchard Sprayer Information

[r8f1k]

I am currently using these units:

https://www.amazon.com/TeeJet-4193A-PP-10-100SS-Strainer-Check-Valve/dp/B01LZKZDVS/ref=sr_1_29?crid=35RHIKNVC9YUO&dib=eyJ2IjoiMSJ9.N2DRsDu_qpNPHe7IsInh2W3s2RRfpm8rETz3L4jK2eDrNc_RmKoVOmMb2jCW1l5ZPaIYtYzA-HNcicoV-UxPtroP0swu-8c_wKDj9KA5m2iAxhUdYQvkmtBrRYGIVraoEIg7ahUrBCzJA2s0BIzHk2u_mdFAX9gJh_XyjXjSnuJf5AWdzbZRtEKHzz17vmGdw7WYgwuSQq8x1WAxNpIdt7kooqGDaQUAr5KInYD9lOWipFShV2ta05HMLl9m_y46u3DoGSIl_fbY2z9iZxuzC7Lf-SdMDS0qUMT4ZCIP-a9uiKMRPf8vCckQr_qnZR-QmGtJItA_JtPpFSgbOTzuwQuKeYeOfHAVdK_9lwt45RQ.Y2uQg9qrARA2IMyAfjZGYaVFFbed8PbJ3GTATyB-Cpg&dib_tag=se&keywords=teejet+check&qid=1739934184&s=lawn-garden&sprefix=teejet+check%2Clawngarden%2C150&sr=1-29

 

[r8f1k]

The units below are what I would love to get and install:

4664 Air Tractor AT-301 Spraying Systems Diaphragm Teejet Crop Duster Airplane | eBay

up for sale is this spray nozzle, used in good condition

www.ebay.com

 

[old and tired]

Something along these lines?

Spraying Systems 4666B ChemSaver Brass Diaphragm Check Valve Nozzle Body [4666B] - $34.45 : Spraying Equipment, Banjo Valves Spray Pumps Diaphragm Pumps Spraying Equipment

Spraying Equipment Spraying Systems 4666B ChemSaver Brass Diaphragm Check Valve Nozzle Body [4666B] - Spraying Systems TeeJet ChemSaver Diaphragm Check Valve Nozzle Bodies Similar in design and performance to the TeeJet Diaphragm Check Valves nozzle bodies, but with pipe thread outlet...

sprayingequipment.com

 

[r8f1k]

Something along these lines?

Spraying Systems 4666B ChemSaver Brass Diaphragm Check Valve Nozzle Body [4666B] - $34.45 : Spraying Equipment, Banjo Valves Spray Pumps Diaphragm Pumps Spraying Equipment

Spraying Equipment Spraying Systems 4666B ChemSaver Brass Diaphragm Check Valve Nozzle Body [4666B] - Spraying Systems TeeJet ChemSaver Diaphragm Check Valve Nozzle Bodies Similar in design and performance to the TeeJet Diaphragm Check Valves nozzle bodies, but with pipe thread outlet...

sprayingequipment.com

Those are really close, I am just NOT ready to drop $30 a piece for 18 of them.......I also like bringing back some old things back from the dead. (As you guys already know). A question I do have is the replacement diaphragm. I see them in a variety of lbs. Is the lbs the PSI that the check valve closes? So if the replacement diaphragm says 10 pounds, that means it closes at 10 psi?

 

[old and tired]

I used lots of T-jet products and yes, it closes at 10 PSI. Cutting off at 10 PSI cuts off the dripple that would happen if there wasn't a check valve and the pressure slowly drops to zero. It also, gets up to pressure faster since there is a residual 10 psi in the line.

 

[r8f1k]

Update: Weather in the area was in the upper 40's last night so I was able to install the new piston cups and assembly. Someone on here, I believe Seven Gables, mentioned boiling them to soften them up. Worked great. I used my old Coleman camping stove, an old pot and dropped them in. They 'boiled' for about 5 minutes and I put them into well lubricated sleeves coated with Murphy's Tire Lube. They went right in.

The new Asian made units have arrived and they are much larger. Probably about an 1/8" larger. They MIGHT fit if I put them in, but they will probably require more HP to get them to spin. Worst case and in a pinch, I could turn them down on a lathe.

 

[r8f1k]

Update: I was able to use the sprayer for my first oil dormancy spray this past weekend. Worked great. It took a little doing to get the nozzle rate dialed in. I had the best luck with TeeJet orifice discs D3 at waist height, D2 higher up. I had to take the Cone Jet nozzles out due to using a 100 nozzle strainers and them getting plugged up in short order. A 25 mesh and the disc orifice was better. There is a bronze 4x6 pre-pump filter, holes are about 1/16” in diameter. That lets a lot of fines through the system. I would like to add a 150 micron sock around the bronze mesh. Is that a “no-no”? I have a feeling that it will clear up over time, but I would like to catch it before it runs through the pump and the nozzles.

 

[Seven Gables]

Update: I was able to use the sprayer for my first oil dormancy spray this past weekend. Worked great. It took a little doing to get the nozzle rate dialed in. I had the best luck with TeeJet orifice discs D3 at waist height, D2 higher up. I had to take the Cone Jet nozzles out due to using a 100 nozzle strainers and them getting plugged up in short order. A 25 mesh and the disc orifice was better. There is a bronze 4x6 pre-pump filter, holes are about 1/16” in diameter. That lets a lot of fines through the system. I would like to add a 150 micron sock around the bronze mesh. Is that a “no-no”? I have a feeling that it will clear up over time, but I would like to catch it before it runs through the pump and the nozzles.

Pretty typical for the first spray with a older sprayer that’s sat for years to plug filters and nozzles. I think you’re best option is to just keep flushing water through the entire system with the nozzles removed.