wwaterjet 
Cylinder Liner SP4-69-175
The Cylinder Liner SP4-69-175 is a high-precision replacement component used in the intensifier or pump assembly of Techni waterjet machines. It forms the inner lining of the pressure cylinder, providing a smooth, wear-resistant surface against which the piston or plunger operates under high water pressure. Made from hardened, high-grade materials, the cylinder liner endures repeated cycles of pressure and motion, playing a critical role in sealing efficiency, overall pump performance, and service life. Proper matching of this liner with seals, clearances, and material compatibility is essential for maintaining cutting accuracy and minimizing downtime in waterjet operations.
ITEM NO. | Description | Part Number | Quantity |
1 | Clamp ring | SP4-50 | 1 |
2 | M12x1.25x40 SHCS BLK | 110-1-1240 | 12 |
3 | Plunger | SP-46-3 | 1 |
4 | Internal Circlip | 501-1-0010 | 1 |
5 | O-ring | 500-5-0049 | 2 |
6 | O-ring | 500-5-0089 | 1 |
7 | Seal Housing | SP4-45-175 | 1 |
8 | Wiper Seal | SP1042 | 2 |
9 | Guide Bush | SP4-46-175 | 1 |
10 | M6 x 10 SHCS Black | 108-1-0610 | 1 |
11 | HP Seal Kit | SP1060 | 1 |
12 | Cylinder Liner | SP4-69-175 | 1 |
13 | Cylinder Body | SP-49-13 | 1 |
14 | Check Valve Housing | SP-72-7 | 1 |
15 | LP Check Valve Spring | 500-12-0040 | 1 |
16 | Check Valve Poppet | SP-73-2 | 1 |
17 | Sealing Head | SP-71-9 | 1 |
18 | O-Ring- BS033 | 500-5-0042 | 2 |
19 | Cylinder Retaining Sleeve | SP2-70-5 | 1 |
20 | Valve Seat | 500-20-0111 | 1 |
21 | Outlet Poppet | 500-20-0113 | 1 |
22 | Spring | 500-20-0112 | 1 |
23 | Check valve outer body | 500-20-0100 | 1 |
24 | O-ring | 500-5-0111 | 1 |
25 | End Cap Insert | SP4-125 | 1 |
26 | Clamp | SP4-126 | 3 |
27 | M6 x 12 SHCS Black | 108-1-0612 | 3 |
NA | Collar | 10078715 | 1 |
NA | Gland nut 3/8" | 10078129 | 1 |
High Pressure Outlet Poppet Repair Kit | 500-20-0110 | ||
20 | Valve Seat | 500-20-0111 | 1 |
21 | Outlet poppet | 500-20-0113 | 1 |
22 | Spring | 500-20-0112 | 1 |
Guide Bush Assembly Kit G4 | SP1120 | ||
5 | O-ring | 500-5-0049 | 2 |
6 | O-ring | 500-5-0089 | 1 |
7 | Seal Housing | SP4-45-175 | 1 |
8 | Wiper Seal | SP1042 | 2 |
9 | Guide Bush | SP4-46-175 | 1 |
