STC model pneumatic valves, with manual, electric and pneumatic three types, electric models have 12V, 24V, 24VAC, 110VAC, 220VAC five voltage, manual models have 1/4, 3/8, 1/2, 3/4, 1, 1 1/2, 2 inches multiple sizes.
This document is a catalog and technical reference for STC's line of manual and actuated process valves. It includes a valve numbering system, price lists, coil options, and detailed technical data for each model.
The information is organized by series (2W, 2L, VX, VXF, V1‑V3, etc.) and covers body materials, seal types, voltage options, operating pressure and temperature ranges, and connection styles, helping engineers select the correct valve for fluid‑power applications.