ADJUSTABLE DUMP ORIFICE (ADO) REPAIR KIT

HJ-306500

OMAX PART NUMBER: 306500 (REPLACED BY 322536)

This Kit includes the following parts:

HJ-306477 Tapered seat

HJ-307002 Adjustable Dump Orifice Erosion Shield

HJ-306607 ADO Stem Assembly

HJ-306480 ADO Seal Guard

HJ-306609 ADO Seal Assembly

HJ-306514 ADO Seal Back Up

HJ-203596 O-ring

Adjustable Dump Orifice (ADO) Rebuild Kit | HJ-306500


The HJ-306500 Adjustable Dump Valve Repair Kit  is a precision-engineered high-pressure rebuild kit designed to restore the performance, sealing integrity, and responsiveness of adjustable dump valve assemblies used in OMAX waterjet pump systems operating up to 60,000 PSI (60K).

The HJ-306500 Adjustable Dump Valve Repair Kit includes all critical wear components required to rebuild the dump valve, ensuring accurate pressure control, reliable system cycling, and leak-free operation in demanding industrial environments.

The HJ-306500 Adjustable Dump Valve plays a vital role in regulating pressure release and system unloading, and over time, internal components can wear due to extreme pressure, contamination, and high-cycle operation. The HJ-306500 Adjustable Dump Valve Repair Kit restores the valve to like-new condition, minimizing downtime and maintaining peak system performance.

 

Key Benefits

  • Restores like-new valve performance
  • Prevents leaks and pressure loss
  • Ensures accurate pressure control
  • Reduces downtime and maintenance costs
  • Extends valve and pump lifespan
  • Complete Seal & Wear Component Set
  • 60K PSI High-Pressure Rated
  • Critical for Pressure Control Systems
  • Improves Reliability and Efficiency

 

Applications

  • CNC waterjet cutting machines
  • High-pressure pump systems
  • Industrial manufacturing environments
  • Continuous production operations

 

Why Choose HJ Waterjet?

HJ Waterjet manufactures high-performance replacement components engineered to meet and exceed OEM specifications. Each part is precision-crafted from premium-grade materials to deliver exceptional durability, consistent performance, and extended service life in demanding waterjet cutting applications.

Designed for reliability and efficiency, our replacement parts help optimize pump performance, reduce maintenance and operating costs, and minimize unplanned downtime. With HJ Waterjet, you can maximize productivity while maintaining the precision and quality your operations depend on without the OEM 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.

© 2026 HJ WATERJET. ALL RIGHTS RESERVED.

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