What Low Torque Plug Valve and Dart Check Valve Are and How They Work
Difference between PME Industrial 2″ 1502 WxT Dart Type Check Valve and a 2″ 1502 WXT Plug Valve lies in their function: a check valve prevents backflow by allowing fluid to move in only one direction, while a plug valve is designed to start, stop, or divert fluid flow. PME dart check valve and low torque plug valve share the same size (2 inches), pressure rating (15,000 psi), and connection type (1502 Wing Union).
PME 2″ 1502 WxT Dart Type Check Valve
The check valve is a two-port valve that’s essential for a piping system because it’s a one-way street for fluids. Specifically, a dart-type check valve uses a small, conical “dart” that is held in place by a spring. PME dart check valve valve function is critical in applications like well servicing, fracking, and cementing where maintaining unidirectional flow is vital to safety and efficiency. Well-known brand for check valves is NOV (National Oilwell Varco), which is recognized for its robust flowline equipment.
PME 2″ 1502 WXT Low Torque Plug Valve
In contrast, PME plug valve is manual valve designed for quick and frequent on-off operation. This simple, robust design is ideal for applications where a reliable and rapid shut-off is needed. Famous brands in the world of high-pressure plug valves include Cameron and SPM (part of the Weir Group), both of which are globally recognized for their durable and high-performance products in the oil and gas industry.
PME API 6A Valves, 2″ 1502 WxT WP 15000, share:
Size: 2” x 2”
Connection: 1502 WxT, standing for Wing Union x Thread, high-pressure fitting in the oilfield
Pressure Rating: working pressure of 15 000 PSI.
Check Valve: PME check valve is a safety and flow-direction device. Its operation is automatic, relying on fluid pressure to open and close. It’s used to prevent backflow and protect upstream equipment from damage.
Plug Valve: PME plug valve is a flow control device. It’s manually operated to start or stop the flow. Its primary purpose is isolation and regulation.
A plug valve can be used to isolate a line for maintenance, while a check valve guarantees that once fluid passes a certain point, it can’t come back.
PME dart check valve and low torque plug valve are both built for extremely demanding, high-pressure environments, a trademark of well service and fracking operations.
For a comprehensive high-pressure flowline system, you often need both—a plug valve for intentional shut-off and a check valve for automatic backflow protection.
