WPA307791 – Stem Assembly, A-Jet On/Off – Replaces OMAX 307791
Replaces Manufacturer: OMAX 307791
Other references: None confirmed
Stock Status: In stock (USA) – Estimated 2-week lead time. Ships from Melbourne, Australia.
Description
The WPA307791 Stem Assembly is the primary actuation component inside the OMAX A-Jet on/off valve. It controls the opening and closing of high-pressure flow to the A-Jet cutting head, ensuring consistent jet engagement and reliable sealing at 60,000 PSI. This assembly replaces OMAX 307791 and is engineered to restore smooth actuation, proper alignment, and leak-free performance in A-Jet on/off valve systems.
Key Features
• Direct replacement for OMAX 307791
• Precision-machined stem for A-Jet on/off actuation
• Ensures stable opening/closing of high-pressure water flow
• Stainless-steel construction for long service life at 60K PSI
• Manufactured to OEM-equivalent tolerances for sealing and fitment
• Restores reliable valve timing and jet-start behaviour in A-Jet systems
Applications / Compatibility
• Manufacturer: OMAX
• Cutting head: A-Jet (5-axis bevel cutting head)
• Assembly: A-Jet on/off high-pressure valve
• Function: Actuation stem controlling HP flow to the A-Jet head
• Confirmed compatibility: Systems listing OMAX 307791 in the A-Jet on/off valve assembly
(Always verify compatibility with your system’s A-Jet valve parts list.)
Installation Notes
• Follow OMAX A-Jet on/off valve service procedures
• Inspect the valve body, seat, and seals during replacement
• Ensure the stem moves freely without binding
• Lubricate seals as specified in OMAX documentation
• Pressure-test the valve after installation to confirm leak-free operation
Why Replace?
A-Jet on/off stems experience high-pressure cycling, contamination, and mechanical wear over time. This can lead to sticking, slow valve engagement, internal leakage, or inconsistent jet starts. Replacing with WPA307791 restores proper actuation behaviour, sealing performance, and overall reliability of the A-Jet cutting system.
