Product Name: Safety Valve Rebuild Package (Part No. 305836)

Description:
The Safety Valve Rebuild Package 305836 is a comprehensive repair kit specifically designed for the high-pressure safety relief valve assembly in waterjet cutting systems . The safety relief valve is a critical safety device that protects the intensifier pump, high-pressure seals, and hydraulic circuits from dangerous over-pressure conditions.

According to manufacturer documentation, this rebuild package contains one Safety Valve Plunger (P/N 300958), two Ceramic Balls (P/N 200904), and a complete set of instructions for properly rebuilding the safety valve assembly . All components are precision-manufactured to OEM specifications using high-grade materials capable of withstanding continuous operation at ultra-high pressures (typically up to 60,000-94,000 PSI / 4,137-6,480 bar).

The safety valve functions by automatically opening at a predetermined pressure threshold. When the system exceeds its rated operating pressure, the valve plunger lifts from its seat, allowing high-pressure water to safely discharge and prevent catastrophic equipment failure or operator injury . The ceramic balls included in this kit serve as precision sealing elements within the valve assembly.

This rebuild package is an OEM direct replacement part, cross-referenced under product code WO305836, and is compatible with OMAX, KMT, FLOW, BFT, WSI, and AccuStream waterjet systems .

Applications:

• Rebuilds the safety relief valve assembly on waterjet intensifier pumps and cutting systems

• Restores the valve's ability to open at the correct pressure threshold, protecting the system from pressure spikes

• Suitable for ultra-high pressure waterjet systems operating at 60,000-94,000 PSI (approximately 4,137-6,480 bar)

• Compatible with OMAX, KMT, FLOW, BFT, WSI, and AccuStream waterjet systems 

Features:

• Complete Rebuild Package: Contains all necessary components for a full safety valve overhaul including plunger (300958), ceramic balls (200904), and instructions 

• OEM Quality: Precision-manufactured to meet or exceed original equipment specifications

• High-Pressure Rating: All components engineered for continuous operation at 60,000+ PSI (4,100+ bar)

• Critical Safety Device: The safety valve is a primary safety component that prevents catastrophic equipment failure and operator injury

• Direct OEM Replacement: Cross-referenced as WO305836 

• Kit Contents:

• 1 × Safety Valve Plunger (300958)

• 2 × Ceramic Balls (200904)

• 1 × Instruction Sheet

Maintenance:

When to Rebuild (Failure Diagnosis):

• Pressure Relief Too Early: If the safety valve opens or leaks at pressures below the rated set point, internal components (plunger or seat) are worn

• Failure to Open: If the system exceeds the maximum working pressure without the valve opening, the valve plunger may be stuck or damaged

• Visible External Leakage: High-pressure water weeping from the safety valve body indicates seal or component failure

• Scheduled Preventive Maintenance: It is recommended to rebuild the safety valve during major pump overhauls or every 1,000-2,000 operating hours

Rebuild Procedure:

• Full Depressurization (Critical): Before any maintenance, fully depressurize the waterjet system (high-pressure water, hydraulic system, and air supply) and follow lockout/tagout procedures. Severe injury can result if the machine is not properly locked out 

• Remove Safety Valve: Carefully disconnect and remove the safety valve assembly from the intensifier pump or manifold

• Disassemble: Using the included instructions, disassemble the valve body, removing the old plunger, ceramic balls, and seals 

• Inspect Valve Body: Examine the valve body bore and sealing surfaces for scoring, pitting, or erosion. Replace the entire valve assembly if damage is severe

• Clean Thoroughly: Clean all metal components and the valve body cavity with low-pressure water and soft brushes. Remove all debris, mineral deposits, and old seal residue

• Install New Components: Install the new safety valve plunger (300958) and new ceramic balls (200904) from the rebuild kit 

• Proper Seating: Ensure the ceramic balls are correctly seated and the plunger moves freely within the valve bore

• Torque Compliance: Reassemble and tighten all components to the torque values specified in the equipment service manual

• Pressure Test: After reinstallation, slowly pressurize the system and verify the safety valve opens at the correct set pressure

• Replace if Damaged: Replace the entire safety valve assembly if the valve body is cracked, threads are damaged, or internal erosion is excessive

Safety Note:
The safety valve is a critical safety device. Improper rebuilding or incorrect pressure setting can lead to catastrophic system failure and severe injury. Always follow the included instruction sheet and use genuine replacement parts .

Cross-Reference Information:

• OMAX #305836

• WO305836 

• Safety Valve Rebuild Package

• Product Code: WO305836