Parker Hannifin 43900606EX Manual Stainless Diaphragm Valve

The Parker Hannifin Veriflo 43900606EX (Model 955SS-FSMM) is a 1/4-inch manual diaphragm valve with a 316L stainless steel body designed for high-purity gas and fluid handling, delivering reliable shutoff with corrosion resistance and low contamination. As part of the 955 Series, this high-flow valve uses a manual actuator for precise control and supports up to 250 PSIG in manual configuration. It is suited for semiconductor manufacturing, gas distribution systems, analytical instrumentation, laboratory equipment, specialty gas cabinets, valve manifold boxes, and ultra-high-purity process installations using high-purity and specialty gases. Common replacements include Veriflo 955MSFSMF, 955SSFSMF, and 955ISTS6.