Product Name: Short Stop Filter Assembly with Adapter (Part No. 301026-3)

Description:
This component is a Short Stop filter assembly complete with an integrated adapter, specifically designed for high-pressure waterjet cutting systems . It functions as the final-stage filtration device, installed at the cutting head to capture microscopic contaminants and stray particles before they reach and damage the precision jewel orifice .

The assembly includes a stainless steel filter housing, a fine mesh filter element, and an integrated adapter that converts between common high-pressure thread sizes . When used with a diamond orifice, this filter ensures precision cutting throughout every job by trapping particles larger than the orifice hole size before they can impact or block the nozzle .

This Short Stop filter is a critical safety and maintenance component that protects intensifier seals, check valves, and the cutting head orifice from contamination-induced wear. It is rated for continuous operation at up to 60,000 PSI (approximately 4,137 bar) and is compatible with major waterjet systems including KMT, H2O Jet, and AccuStream .

Applications:

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

• Connects the high-pressure water line to the cutting head valve body with integrated thread adapter 

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

• Extends the service life of diamond orifices and IDE (Integrated Diamond Eductor) cutting heads

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

Features:

• Complete Assembly with Adapter: Integrates filter housing, filter element, and thread adapter in a single unit (3/8" male x 1/4" female configuration) 

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

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

• Critical Protection Component: Essential for preventing untimely cutting head failure and maintaining cutting precision 

• Lightweight: Approximately 0.209 lbs (95 g) for easy handling during maintenance 

Maintenance:

Failure Diagnosis:

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

• Premature Orifice Wear: 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

• Blocked Orifice: If the orifice becomes plugged or partially blocked, the Short Stop filter may be saturated with contaminants 

Inspection and Replacement Guidelines:

• Regular Inspection: The filter element should be inspected periodically and cleaned or replaced as needed 

• Cleaning: The fine mesh screen can be cleaned with compressed air or solvent and reused unless damaged

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

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

• Installation: The filter assembly is installed at the cutting head mounting collar in the high-pressure adapter cavity inside the HP cone, fitting into the valve body of the cutting head 

• 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 assembly during service

• Water Quality Impact: Poor water quality accelerates filter clogging; maintain proper primary filtration to extend filter service life

Cross-Reference Information:

• H2O Jet #: 301026-3 

• KMT #: 20454363 

• WSI #: FL20454363 

• Includes: Filter Element (FL20454426) and Adaptor Insert (FL20454360) 

• Product Weight: 0.209 lbs (0.095 kg) 

• Thread Configuration: 3/8" Male x 1/4" Female, 60K HP