Model 600-DA - Steam Safety Valve

Product Brand: Target Rock

A history of acting duty since the 1980s.

Target Rock direct-acting, spring-over-disc safety valves are installed in the main steam safety valve application in both pressurized water reactors and boiling water reactors since the 1980s.

All designs feature a flexible disc technology to ensure tight sealing over a wide range of plant conditions. Valves supplied with Belleville disc springs and are ASMI III and ASME QME-1 qualified. Options include a fully qualified air operator and and a position indicator.

General Specifications:
Size 8 in. (DN200) to 10 in (DN250)
Quality Class ASME III Class 1, ASME QME-1
Features and Benefits
Features Benefit
FLEX-C Flexible disc technology
Belleville disc springs Dependable and Consistent Set Pressure

Flexible disc technology

For applications requiring both a safety and relief functionality, Target Rock has a complete pneumatic piston actuator system fully certified to the latest qualification standards for use inside containments.

All designs feature a flexible disc technology to ensure tight sealing over a wide range of plant conditions. Our latest designs utilize advanced Belleville spring technology to provide accurate and highly repeatable set pressure performance.

Recommended applications

  • Main steam safety valve
  • Main steam safety relief valve
Model 600-DA - Steam Safety Valve
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