Ross Controls Incorporated 1968A5107 Check Valve

1968A5107 is an inline, self‑actuating check valve from Ross Controls’ 19 Series, engineered for compressed‑air systems to permit flow in one direction and prevent backflow in pneumatic circuits. It features a 3/4‑inch port size (NPT by default) and a 3/4‑inch body size, a Cv of 8.6, and a weight of about 0.9 lb (0.4 kg), delivering reliable mid‑range flow in compact installations. The model uses standard NPT threading; for BSPP (G) threads, prefix the model with D (e.g., D1968A5107). This variant sits in the 19 Series of inline check valves, which span multiple Cv options to suit different circuit demands (for example, 1968A4107 with Cv 5.2 and 1968A6107 with Cv 17). In typical pneumatic applications, it provides backflow protection for actuators, pilot lines, and feeder circuits, helping maintain pressure and prevent reverse flow; it is also suitable for vertical cylinder load‑holding scenarios where a check valve in the cap‑end supply line helps prevent gravity‑induced drift when the directional control valve is in the center position. For exact dimensional drawings and port configurations, consult Ross Controls’ 19 Series data, but the confirmed data for 1968A5107 lists a 3/4" port, 3/4" body, Cv 8.6, and a compact footprint suitable for space‑constrained manifolds.