Product ID: 05116025 – Waterjet On/Off Valve Repair Kit

Description:
This component is a complete on/off valve repair kit designed for high-pressure waterjet cutting systems . It contains all the precision seals, O-rings, backup rings, and internal components required to rebuild and reseal the on/off valve assembly that controls the start and stop of the high-pressure waterjet . This kit is specifically engineered for the pneumatic or solenoid-operated on/off valve typically located between the high-pressure pump and the cutting head . This part number may be referenced alongside or as an alternative to 05116017 in various documentation .

Applications:

• Used to rebuild the on/off valve (water switch) assembly that controls the cutting jet start/stop function on waterjet cutting machines .

• Installed within the valve body to replace worn seals and valve seats that have degraded from high-pressure cycling and abrasive exposure .

• Suitable for both pure water and abrasive waterjet systems operating at pressures up to 60,000 psi (approximately 4,137 bar) .

Features:

• Contains all required sealing and wear components for a complete valve overhaul, including valve seat, high-pressure valve seal, valve stem, backup rings, and O-rings .

• Seals and backup rings manufactured from high-pressure-rated, wear-resistant materials to withstand extreme pressure cycling and abrasive environments .

• Precision-machined valve stem and seat components ensure leak-tight shut-off and reliable performance .

• Includes brass and stainless steel backup rings to prevent seal extrusion under ultra-high pressure .

• Typically includes assembly lubricant (high vacuum grease) and a wood dowel for seal installation assistance .

Maintenance:

• Fully depressurize the waterjet system and disconnect power before servicing the on/off valve assembly .

• Remove the on/off valve body from the system, noting the orientation of inlet and outlet ports.

• Disassemble the valve according to the equipment service manual, carefully extracting the old valve stem, seals, seat, and backup rings.

• Thoroughly clean the valve body interior and all mating surfaces using a soft cloth and low-pressure water or compatible solvent.

• Inspect the valve body bore for scoring, pitting, corrosion, or erosion; replace the valve body if damage is found.

• Inspect all new kit components for damage before installation; ensure seals are free from nicks or deformation.

• Lubricate new seals and O-rings with the provided high-pressure grease or manufacturer-recommended assembly lubricant .

• Install seals, backup rings, and the valve stem in the correct sequence and orientation as shown in the service manual.

• Use the provided wood dowel if included to assist in seating seals without damaging sealing surfaces .

• Reassemble the valve and tighten all threaded connections to the torque values specified in the equipment service manual.

• After reinstallation, slowly pressurize the system and test the on/off valve repeatedly to ensure complete jet stop and no leakage.

• If the valve fails to close fully or leaks when closed, re-inspect the valve seat and seal installation.

• Replace the entire kit during scheduled preventive maintenance to prevent unplanned downtime; do not reuse individual seals from an opened kit .