SECTION 7
HIGH PRESSURE WATER
Jan 2001
Page 7-13
05114624
7.3.1 Discharge HP Check Valve
The HP discharge check valve can be serviced with the sealing head either
installed in or removed from its intensifier HP cylinder.
1. Remove the gland nut from the sealing head using two 30mm (1 3/16”)
wrenches.
2. When the gland nut is removed, the spring guide, spring and poppet will
normally stay in the gland nut. The valve seat is removed with a magnet.
Inspect the seat for damage or cracking. A cracked seat should be replaced.
The seat is symmetrical, and can be installed with either face toward the
poppet. When reinstalling the seat, apply a thin film of High Purity Goop to
both faces. Install the seat into the sealing head with the best surface facing
the poppet.
Item Description
(1) Sealing Head (2) Poppet (3) Gland Nut
(4) Poppet Seat (5) Spring (6) Guide Pin
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