Product Name: Short Stop Filter Assembly (Part No. 301026-2)

Description:
The Short Stop Filter Assembly 301026-2 is a high-pressure inline filtration device specifically designed for waterjet cutting systems operating at pressures up to 60,000 PSI (approximately 4,137 bar). It is installed at the cutting head mounting collar, positioned as the final filtration stage immediately before the high-pressure water enters the orifice assembly .

The assembly contains a fine mesh screen element that captures microscopic contaminants, stray particles, and debris that may become dislodged from upstream components and travel through the high-pressure lines . If these particles reach the jewel orifice (sapphire or diamond), they can block or erode the precision hole, leading to degraded cutting performance, shortened orifice life, and increased maintenance costs.

This Short Stop filter is designed to capture particles larger than approximately 0.14 mm (0.0055 inches), allowing only particles small enough to safely exit through the orifice without causing damage . The filter element itself is serviceable and can be cleaned or replaced as needed, making it a cost-effective maintenance component that significantly extends the service life of the cutting head orifice .

Applications:

• Installed at the cutting head mounting collar as the final filtration stage before the orifice assembly 

• Protects the cutting head orifice (sapphire or diamond) from contamination-induced damage, blockage, and premature wear 

• Extends the service life of diamond orifices and cutting head components 

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI and above

Features:

• Final Stage Filtration: Positioned closest to the orifice to provide last-chance contaminant capture 

• Fine Mesh Screen: Captures microscopic debris and stray particles that could damage the orifice 

• Critical Protection Component: Essential for protecting diamond orifices and preventing untimely cutting head failure 

• Serviceable Design: The mesh filter element can be cleaned and reused unless damaged 

• Small Conical Design: Fits into the high-pressure adapter cavity inside the HP cone, directly at the valve body of the cutting head 

• Direct OEM Replacement: Interchangeable with industry standard part numbers

Maintenance:

Failure Diagnosis (When to Service or Replace):

• Gradual Pressure Drop: A slow decline in cutting pressure may indicate a clogged filter element restricting water flow

• Premature Orifice Wear or Blockage: Frequent replacement of jewel orifices or poor cutting performance suggests the filter is allowing contaminants to pass through or is not being serviced regularly 

• Degraded Cut Quality: Unusual edge quality, jet divergence, or reduced cutting speed may indicate that debris is reaching the orifice 

• Visible Contamination: During inspection, if the filter element shows significant debris accumulation

Inspection and Replacement Guidelines:

• Regular Inspection and Cleaning: The filter element should be inspected periodically; the mesh screen can be cleaned and reused unless damaged 

• Preventive Replacement: Even with cleaning, the filter element should be replaced on a regular schedule based on operating hours and water quality

• Full Depressurization (Critical): Before any maintenance, fully depressurize the waterjet system, disconnect the high-pressure water supply, and follow lockout/tagout procedures to prevent severe injury from accidental high-pressure water release

• Housing Inspection: When servicing, inspect the stainless steel filter housing for cracks, corrosion, or thread damage

• Seal Replacement: Always replace any O-rings or seals associated with the filter housing during service to prevent external high-pressure water leaks

• Proper Installation: Verify the filter is installed with the correct orientation at the cutting head mounting collar, fitting into the HP cone cavity 

• Water Quality Impact: Poor water quality (contaminants, hardness, inadequate primary filtration) accelerates filter clogging; maintain proper primary filtration and water treatment to extend filter service life 

• Storage: Store spare filter assemblies in a clean, dry environment to prevent contamination before use