The Valtek Mark One Control Valve data sheet details design, features, body styles, connections, gaskets, and performance specifications.
The Valtek Mark One is a double‑top‑stem globe control valve designed for reliable operation in liquid and gaseous services. Its spring‑cylinder actuator provides high thrust, precise positioning and fast response, while the clamped‑in seat ring and top‑entry trim enable quick maintenance and high parts interchangeability.
The valve family includes globe, angle and three‑way body styles, a range of bonnet types (standard, extended, cold‑box extended, Guardian II metal‑bellows), and various gasket and packing options. Detailed tables list ANSI/ISA connection sizes, pressure classes, gasket materials, and temperature limits for each configuration.
| Maximum supply air pressure | 150 psig (10.3 barg) |
|---|---|
| Positioning accuracy | 0.002 inch (0.05 mm) |
| Pressure class (ANSI) | Class 600 (PN 100) |
The valve can operate with up to 150 psig (10.3 barg) of supply air pressure.
It offers positioning accuracy of 0.002 inch (0.05 mm).