Abrasive Valve Spool
Product Name: Abrasive Valve Spool
Description:
This component is the valve spool, also known as the valve core or metering pin, of the abrasive control valve in a waterjet cutting system. It is a precision-machined moving component inside the sand valve body that directly controls the opening and closing of the abrasive flow path. The spool typically features a conical or tapered tip that seats against a valve seat to provide a tight shut-off, preventing abrasive from flowing when the waterjet is not cutting.
Applications:
Primary flow control element within the abrasive regulator assembly of waterjet cutting systems
Opens and closes the abrasive supply path from the hopper to the mixing chamber
Works in conjunction with the throttle screw to regulate abrasive flow rate
Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI
Features:
Precision-Machined Geometry: Tapered or conical tip provides a tight seal against the valve seat for positive shut-off
Wear-Resistant Material: Constructed from hardened steel or stainless steel to resist erosion from abrasive particles
Linear Motion Design: Moves in a straight line to open or close the abrasive passage
Actuation Compatibility: Designed to be moved by pneumatic cylinder or solenoid actuator
Maintenance:
Sticking / Jamming: Sand particles can become lodged between the spool and valve body, causing failure to open or close properly. Clean with compressed air regularly
Seal Wear: O-rings on the spool shaft may wear out, leading to air leakage or abrasive bypass. Replace seals whenever the valve is disassembled
Tip Erosion: The sealing tip may erode from prolonged abrasive exposure, resulting in inability to fully shut off sand flow. Replace spool if tip is worn
Inspection: Remove spool during routine maintenance and inspect sealing surface for wear, pitting, or erosion. Check for smooth movement within the valve bore
Full Depressurization: Always fully depressurize the waterjet system and shut off abrasive supply before servicing
