So there was a thread a little bit ago, asking about vacuum hoses. I stated that I have all my hoses made for a fraction of the cost. Got a few emails from people stating I was full of $%^.
So here is my set-up...take what you want or not.
Hoses are 919-6 ParFlex series hoses made by Parker Industries. They are rated at 2500 psi burst, 28inHG vacuum. These hoses are much more smaller in over-all diameter than what we are all use to. These particular hoses ARE 3/8" ID even though they look like a 1/4" hose we are use to. These hoses are very flexible, steep bending radius, can step on them, pull them through hot spots, take an accidental torching, and easier to manage and store.
Y/J and others Rubber Hoses are thick, bulky, and expensive. Their Vacuum rated hose is triple threaded and just a cumbersome hose to play with. Storage is a b!@#%.
The 919B is $4.89 a foot for 3/8 ID
1/2" is $6.10 a foot
All from my local Intermountain House of Hose...a Parker Distributor.
These are process 3/8" flare fittings. My Parker distributors has a specialized machine that triple crimps these to the hose with a hydraulic 15000 psi press. Can get these in 45, 90, and straight. These fittings will not mate with the standard 3/8" flare end. So I use the process 3/8 flare fitting to 3/8 mpt fitting and attach straight to the housing of the Y/J quick valve. I usually remove the ball guts of this Y/J fitting and 45% braze the handle fitting hole to make them permanent, and no concerns it is leaking at handle.
Straight Fittings are $4.00 each for
45 fittings are $9.00 each
90 fittings are $11.00 each
Vacuum Pump inlet fitting:
I removed the 1/2 MPT to 3/8 flare factory fitting.
NOTE: There is a mesh screen in the YJ brand of pumps to prevent debris entering the rotaries. Make good practice to remove and clean screen annually. It is fine mesh and clogs fairly often.
Inside there is also a brass retainer that requires a hex to remove for the ball valve assembly for the blank-off valve for the pump. There is a rebuild kit# 93401 for this. If your Y/J pump is leaking...90% of the time it is here. I rebuild mine about every other year and have an extra kit just in case. I use NyLog on the internal fittings with great success.
As for this fitting, I replaced it with with a 1/2 MPT to 1/2 Flare x 1/2 Flare "T". This is where is can get confusing. I use flare adapters to allow me to remove the 1/2" to 3/8" hose connectors and change over to 1/2" to 1/2" for my 1/2" hoses. On large systems I can run my 1/2" hoses to a 1/2" x 3/8" x 3/8" set-up to allow a total of FOUR 3/8" hoses attached to multiple ports of the system tied to the vac pump.
"T" was $12.30
1/2" to 3/8" flare reducing union set $3.69 each
1/2" to 1/2" flare union set $4.23 each
Oil Quick Fill Port:
I removed the handle on my Y/J 6cfm pump. This gives you direct access to the exhaust portion of the pump. This section of the pump is NOT under vacuum or critical. I attached a normal 3/8 flare x 3/8 MPT fitting to this. I have a small hand pump that allows me to attach directly to this port and be able to quick fill my pumps oil. Never had success trying to poor oil into the existing exhaust port.
Accessory Storage Box:
I custom made and folded a steel bracket which utilizes the motor mounting bolts. Attached to this is my accessory box that I keep my core removal tools, caps, replacement schraeders, NYLOG for the flare fittings, etc. It is solid and easy to make and utilizes the wasted space just above the motor. Ill upgrade to a metal box, but until then the plastic box is perfect size and cheap from HomeDepot.
So this set-up with a pair of 6 foot 3/8 hoses and fittings came to $86.60 after taxes....Look at the price for a SINGLE 3/8 or 1/2 Y/J or similar vacuum hose $50 to $80 bucks
So those of you that wish to email me and give me grief and call my bluff...here is the proof. The bracket and storage kit is my idea..so if TruTech or someone wants to clean it up and mass produce that, gotta kick me some royalties...