Sealing Head SP-71-7 Waterjet Cutting Pump Parts For Techni

The SP-71-7 Sealing Head is the OEM high-pressure seal assembly that interfaces between the cylinder liner and head Cover in Waterjet Intensifier-Assembly-80072333-Good-Quality-Water-Jet-Parts-In-Stock-p.html target='_blank'>Intensifier pumps, ensuring no hydraulic fluid leakage during the high-pressure stroke. Constructed from stainless sTeel with a precision elastomer insert, it maintains reliable sealing at pressures up to 60 000 psi (4 100 bar) in both Gen 2 and Gen 4 intensifiers.

Part Overview
Part Number:SP-71-7
Name:Sealing Head
OEM Code:SP-71-7 (Article 12437)
Material:Stainless steel housing with bonded elastomer seal
Function:Provides high-pressure hydraulic seal in intensifier head
Compatible Components:Cylinder Liner SP-69-9; Check Valve Housing SP-72-10

Installation & Maintenance
Depressurize System: Fully isolate and relieve hydraulic pressure.
Disassemble Head: Remove the intensifier head cover to expose the existing SP-71-7 seal
Remove Old Seal: Extract the worn sealing head; inspect cylinder liner and cover for scoring.
Prepare Bore: DeGrease and lightly hone the bore; remove any sharp edges.
Install SP-71-7: Press the new sealing head into the cover until fully seated.
Reassemble & Test: Reinstall cover, repressurize at low pressure to seat the seal, then ramp to full pressure while checking for leaks.

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