Material version Liquid end Suction / pressure
connector
Seals* / ball seat Balls Integrated bleed
valve or relief
valve
PVT PVDF PVDF PTFE / PVDF Ceramic PVDF / EPDM
SST Stainless steel
1.4404
Stainless steel
1.4581
PTFE / PVDF Stainless steel
1.4404
Stainless steel /
EPDM
* Metering diaphragm is PTFE-coated; seals are PTFE composite seals
PTFE: FDA No. 21 CFR §177.1550
PVDF: FDA No. 21 CFR §177.2510
Wetted materials – "Physiologically safety
with regard to wetted materials" design
Wear parts for S1Cb
105