It is used in pumps with piston diameter 1/8" as working head seal. It is made from U-R320HB(CC)-06-GFP-HST - Graphite fiber reinforced PTFE. It has very high wear resistance and highest extrusion resistance.
If such chemical composition is not acceptable for you, we can offer seal from another material.
As washing head seal is used the 1/8" U-R320MB-06-T-316 seal made from virgin PTFE (P/N 00508000) or 1/8" x 8 mm GFP55 HT seal made from GFP (P/N 00503000).
By seal changing must the spring directed out of unit.
For pump types ECP2010, ECP2011, ECP2011P, ECP2011S, ECP2011SP, Alpha 10, Beta 10, VRS 15, 4020.3 and 4020.5.