This is a replacement part for the S-Series Valves. 4-S4 number of ports, S4 bore size, CTFE stator material, PFA rotor material.
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High purity valve stators and rotors provide a liquid path with low contamination and low carryover for the best ICPMS results. The P-Series valves feature PFA rotors, compression rings for easy assembly and Teflon® coated internal components. PFA rotors are durable, clean and chemically-resistant. CTFE stators offer high impact strength and chemical and corrosion resistance over a wide temperature range.