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Flow 041138-1 is the abrasive mixing chamber (nozzle body) of the Paser 4 cutting head, which holds the orifice and the focusing tube and draws in the abrasive. It is used on Flow Paser 4 abrasive cutting heads. This aftermarket version is made to the same mounting and connections as the original, so it fits where the old one came off.
The same part is also sold as AccuStream 1-14468.
Sold as one unit. Check the number on your old part, or in the parts manual for your machine, before ordering.
| Part Type | Paser 4 Mixing Chamber |
| Replaces | Flow 041138-1 |
| Type | Abrasive mixing chamber (nozzle body) with abrasive inlet and air ports |
| Cutting head | Flow Paser 4 (P4) |
| Material | Stainless steel |
| Supplied as | Single mixing chamber, without orifice or focusing tube |
| Cross References | AccuStream 1-14468 |
| Fits | Flow Paser 4 (P4) abrasive waterjet cutting heads |
| Condition | New, aftermarket |
| Stat. HS-Code | 846693 |
Flow machines
Check the part number on your old unit before ordering.
| Flow Part No.(SPM Part No.) | Fits |
|---|---|
| 041138-1(SPM-WJP-2876) | Flow Paser 4 (P4) abrasive waterjet cutting heads |
| Brand | Part No. |
|---|---|
| Flow | 041138-1 (this page, SPM-WJP-2876) |
| AccuStream | 1-14468 |
All of these numbers are the same part.
Wide or ragged kerf
Abrasive wears the bore of the mixing chamber where the jet, air and garnet meet. Once it washes out, the stream loses focus and the cut gets wider and rougher. Check the orifice and focusing tube first, then the chamber.
Abrasive feed problems
A worn or cracked chamber leaks vacuum, so abrasive surges or stops feeding. Poor vacuum at the abrasive port with a good orifice and feed hose points to the chamber.
Orifice and tube changes
The chamber holds the orifice and the focusing tube in line. When the seat or the tube bore is damaged, a new orifice or tube will not run true until the chamber is replaced.
Fitting tips
Isolate and bleed the high pressure before opening the head. Clean the threads, fit a new orifice, align the focusing tube, tighten the nut to the head maker's figure and test cut on scrap.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| eBay, aftermarket seller | USD 260.00 | 6 Oct 2026 |
| Hennco Waterjet Supply | USD 450.00 | 6 Oct 2026 |
| AccuStream | USD 484.00 | 6 Oct 2026 |
| Spare Part Mart | USD 208.00 | Today |
Our price of USD 208.00 is 20% to 57% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
No. It is an aftermarket part made to fit in place of Flow 041138-1. It is not made by or affiliated with Flow; the Flow part number is used only to show what it replaces.
It fits Flow Paser 4 (P4) abrasive waterjet cutting heads. Machines change parts between serial number ranges, so check the number on your old part or in your parts manual.
It is made to the same mounting and connections as the original part. Fit new gaskets and seals where they are used, and check for leaks and correct operation before putting the machine back to work.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
