WOODWARD LQ6 Liquid Fuel Valve Actuator with On-board Driver

WOODWARD LQ6 Liquid Fuel Valve Actuator with On-board Driver

Product Overview

WOODWARD LQ6 Liquid Fuel Valve Actuator with On board Driver is an advanced device designed specifically for industrial gas turbine liquid fuel control. It integrates an electric rotary metering valve, bypass regulator, and onboard driver module, which can provide precise liquid fuel flow control in industrial gas turbines ranging from 3mw to 15mw power, ensuring stable and efficient engine operation. It plays a key role in gas turbine systems in multiple fields such as power generation, mechanical drive, and ocean.

Product Structure and Principle

Integrated with electric rotary metering valve, bypass regulator, and onboard driver module. The rotary metering valve achieves high-precision flow control through rotating plate components and precision machined metering ports. The sealing shoe and plate are tightly matched to control the flow area. The bypass regulator maintains stable pressure difference at the metering valve port. When the pressure difference exceeds the set value, the regulator piston opens and bypasses the excess inlet flow back to the fuel pump inlet.

Specification parameters

Flow range: 80-10800 pounds per hour (36-4900 kilograms per hour), based on a liquid fuel specific gravity of 0.82.

Suitable fuel pump types: can be used in conjunction with gear pumps and other positive displacement fuel pumps.

Performance characteristics

Accurate flow control: Adopting a rotating plate and precision metering port design, combined with a large valve stroke and high-precision position feedback rotary transformer, the flow regulation ratio exceeds 100:1, and the flow control accuracy is high.

Self cleaning function: The shearing action can prevent pollutant deposition and system debris from blocking the metering port, ensuring the normal operation of the valve and extending its service life.

High reliability: Rare earth permanent magnets and efficient electromagnetic circuits provide powerful driving force while reducing size. Single axis design reduces moving parts, lowers the risk of failure, and improves reliability.

Diverse electrical interfaces: equipped with digital and (4-20) mA interfaces, convenient for integration with control systems, enabling remote control and monitoring. It also has discrete fault output and independent shutdown functions to enhance system safety.

Product specifications: The flow range is 80-10800 pounds per hour (36-4900 kilograms per hour), based on a liquid fuel specific gravity of 0.82. Can be used in conjunction with gear pumps and other positive displacement fuel pumps.

Precautions

Installation environment requirements: Although the equipment has a certain degree of environmental adaptability, it should be installed in a dry and well ventilated environment as much as possible, avoiding places with humidity, dust or corrosive gases, to ensure the normal operation and service life of the equipment.

Fuel compatibility: Ensure that the liquid fuel used meets the fuel type and quality standards specified by the equipment, and avoid valve blockage or damage caused by the use of inappropriate fuel, which may affect equipment performance.

Regular maintenance: Although the equipment has self-cleaning and other functions, it is still necessary to perform regular maintenance according to the maintenance manual provided by WOODWARD, check the operating status, electrical connections, and wear of key components of the equipment, and promptly identify and solve potential problems.

Application area 

Mainly used in industrial gas turbines, including gas turbine engines for power generation, mechanical drive, and marine applications. In the field of power generation, ensuring stable combustion of gas turbines and improving power generation efficiency; In mechanical drive, provide stable power for the driving equipment; In marine applications, adapting to complex marine environments and ensuring reliable operation of gas turbines.

Product advantages: Onboard drivers simplify system design, reducing installation space, time, and cost. The overall design is compact and cost-effective. Highly integrated, reducing external components, lowering system complexity and fault points. As a Woodward brand product, it has professional technical support and quality assurance. The product has been validated by the market and has high reliability.