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Desuperheating Valves Take the Heat

A cascading bypass system uses an high pressure (HP) steam bypass valve and a hot reheat (HRH) steam bypass valve to manage steam flow to the steam turbine. The HRH bypass valve actuator determines the valve’s ability to respond to system demands. This article discusses the selection of HRH valves and actuators, and the corresponding impact on other plant components.

Revision Date:  6/3/2015

Tags:  221112 - Fossil Fuel 化石燃料, KOSO, Actuator, Valve, High Performance Valve, Reheat, Power Magazine

Gas Turbine Electric Valve Actuators

In order to deliver efficient and dependable gas turbine performance with low operating and maintenance costs, manufacturers and retrofitters are turning to all electric servo solutions for their actuator needs, eliminating the need for pumps and tubing normally associated with hydro-mechanical or pneumatic designs.

Revision Date:  5/28/2015

Tags:  221112 - Fossil Fuel 化石燃料, Exlar, Valve, Actuator

Keeping Motion Control Systems Operating is Critical for CCGT

The challenge for power plants is keeping their critical motion control systems operating at the same high level as the original equipment in spite of 24/7 operations in rugged environments. Moog provides actuators and servo valves to most OEMs of gas and steam turbine equipment and works with the designers of new turbines to develop specifications. In addition, Moog provides Global Support repair and maintenance services and offers special services to help power plants minimize downtime and ensure optimized performance

Revision Date:  5/28/2015

Tags:  221112 - Fossil Fuel 化石燃料, Moog, Inc./ Ind'l. Controls Div., Valve, Actuator, Maintenance, Service & Repair, Motion Control

Woodward Supplies Gas Control Valves for Heavy Frame Gas Turbines

Woodward supplies gas control valves for heavy frame gas turbines. Fuel control valves are available in several sizes with either hydraulic or electric actuation. The integrated valve/actuator contains options for high-temperature applications, hydraulic or electric trips, and a variety of flow capacities. A separate valve is available to control the system fuel pressure upstream from the main control valves.

Revision Date:  1/20/2014

Tags:  221112 - Fossil Fuel 化石燃料, Woodward, Valve, Actuator, Flow Control