PTO VALVE REBUILD KIT WITHOUT TAJ

HJ-305340

OMAX PART NUMBER: 305340

Rebuild Kit, Valve, Nozzle, Pull to Open, without Tilt-A-Jet.

The HJ-305340 PTO Valve Rebuild Kit (w/o TAJ) include the following parts:

HJ-301478 Seat

HJ-300997 Backup Ring Assembly

HJ-305223 Stem Assembly

HJ-302094 Seal Assembly

PTO Valve Rebuild Kit Without TAJ | HJ-305340


The HJ-305340 PTO Valve Rebuild Kit Without TAJ is a replacement maintenance kit designed for the PTO (Pull-to-Open) valve used with Moto-Z cutting heads on OMAX waterjet cutting systems. This HJ-305340 provides the key wear components needed to rebuild the PTO valve, helping restore proper valve sealing, reliable operation, and consistent high-pressure water control.

The PTO valve is a critical component of the waterjet cutting head because it controls the flow of high-pressure water to the nozzle during the cutting process. With repeated operation, valve seats, seals, backup rings, and stem components can experience normal wear. Rebuilding the valve with the appropriate replacement components can help maintain dependable cutting-head performance and reduce the risk of leakage, valve malfunction, and unnecessary machine downtime.

 

Why Rebuild the PTO Valve?

The PTO valve operates in a demanding high-pressure waterjet environment and is subject to repeated cycling during normal machine operation. Over time, wear on the valve seat, stem, backup ring, and seals can affect valve performance.

Replacing worn components with a PTO valve rebuild kit can help:

  • Restore proper PTO valve sealing
  • Reduce leakage caused by worn valve components
  • Maintain reliable valve operation
  • Support consistent high-pressure water flow
  • Improve cutting-head reliability
  • Reduce unexpected machine downtime
  • Extend the service life of the valve assembly
  • Simplify routine waterjet maintenance
  • Keep critical replacement parts available for scheduled service

HJ Waterjet recommends regular inspection and maintenance of waterjet equipment and replacing or repairing worn or damaged components to help minimize the possibility of damage to other system components and reduce unplanned downtime.

 

HJ-305340 vs.HJ-305361 – Important Difference

Do not confuse these two PTO valves rebuild kits:

HJ-305340
PTO Valve Rebuild Kit without TAJ – for Moto-Z cutting heads.

HJ-305361
PTO Valve Rebuild Kit for TAJ/TiltaJET cutting heads.

They are listed as separate part numbers for different cutting-head applications. Selecting the correct kit is important for proper fit and valve operation.

 

Ideal for Preventive Waterjet Maintenance

The HJ-305340 PTO Valve Rebuild Kit Without TAJ is an ideal replacement part for scheduled maintenance and repair of Moto-Z cutting heads. Replacing worn valve components before they cause more serious operating problems can help maintain machine availability and dependable waterjet cutting performance.

 

Frequently Asked Questions | HJ-305340

What is HJ Waterjet part number HJ-305340?
HJ-305340 is a direct replacement for OMAX 305340 PTO Valve Rebuild Kit without TAJ designed for Moto-Z cutting heads.

What does PTO mean in a waterjet cutting head?
PTO means Pull-to-Open. The PTO valve controls high-pressure water flow through the cutting-head system and opens through a pull-to-open mechanism.

What is HJ-305340 used for?
HJ-305340 is used to rebuild the PTO valve on compatible Moto-Z cutting heads, replacing commonly serviced valve components such as the seat, backup ring assembly, stem assembly, and seal assembly.

Is HJ-305340 compatible with TiltaJET or TAJ?
No. HJ-305340 is identified as the PTO Valve Rebuild Kit without TAJ for Moto-Z cutting heads. The separate HJ-305361 kit is specified for TiltaJET/TAJ cutting heads.

What is the difference between HJ-305340 and HJ-305361?
HJ-305340 is for Moto-Z cutting heads without TAJ, while HJ-305361 is the PTO Valve Rebuild Kit for TiltaJET/TAJ.

When should a PTO valve be rebuilt?
A PTO valve should be inspected regularly and rebuilt when its wear components show signs of damage, leakage, sealing problems, or unreliable operation. Regular maintenance can help prevent more extensive component damage and unexpected downtime.

Can I replace individual PTO valve components instead of the entire rebuild kit?
Individual components may be available separately, but a complete rebuild kit provides the primary service components together, making it a convenient option for scheduled PTO valve maintenance.

Why is PTO valve maintenance important on a waterjet?
Proper PTO valve maintenance helps maintain reliable valve operation and high-pressure water control while reducing the risk of leaks, cutting-head problems, and unplanned downtime.

 

Why Choose HJ Waterjet?

HJ Waterjet replacement parts are engineered to deliver premium-quality, reliable performance, precision fit, and long-lasting durability at a competitive price. Precision manufactured to exact specifications using high-quality materials and tight tolerances, our components are designed for compatibility with OEM waterjet systems and demanding industrial applications. By focusing on quality, precision, and value—not expensive branding—we help manufacturers reduce maintenance costs, minimize downtime, and maximize productivity without compromising performance or reliability. When precision matters, HJ Waterjet delivers the proven quality, reliability, and value professionals trust. Premium Performance Without the Premium Price

** HJ WATERJET IS IN NO WAY AFFILIATED WITH GMA, EBBCO, KENNAMETAL, KMT, FLOW, BFT, H2O, OMAX, ACCUSTREAM, HYPERTHERM OR TECHNI. PART NUMBERS ARE FOR CONVENIENCE ONLY.

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