System Operation

Treated Water (Downflow)

Untreated water is conditioned as it flows through the resin bed and up the riser.

Backwash (Upflow) – Cycle C1

Flow is reversed by the control valve, directed down the riser, up through the resin bed and sent to drain. The bed is expanded and debris is flushed to the drain.

Regenerant Draw (Downflow) – Cycle C2a

Water passes through the injector and regenerant is drawn from the regenerant tank. The regenerant is directed to the resin bed. The hardness ions are displaced by sodium ions. Regenerant draw is completed when the air check closes.

Slow Rinse (Downflow) – Cycle C3a

Water flow moves the regenerant through the resin at a specific rate and rinses to the drain. The resin is regenerated.

Repressurization – Cycle C4

Pressure is balanced in the valve before continuing the regeneration.

Fast Rinse (Downflow) - Cycle C5

Water passes through the resin bed and up through the riser to drain. All remaining regenerant residual is rinsed from the resin bed.

2nd Backwash (Upflow) - Cycle C6

Flow is identical to C1 Backwash. The resin is reclassified.

2nd Rinse (Downflow) - Cycle C7

Flow is identical to C5 Fast Rinse. The resin bed is rinsed to quality.

Regenerant Refill – Cycle C8

Water is directed to the regenerant tank to create regenerant for the next regeneration.

Cycle Water Flows
		From Regenerant			To Regenerant
		Tank			Tank
Service	Backwash	Regenerant Draw/	Repressurize	Fast Rinse	Refill
		Slow Rinse

a. The camshaft does not change position between the C2 and C3 cycles. C3 is not displayed.

255 specifications

The GE 255 is a versatile and powerful gas turbine, known for its exceptional efficiency and reliability in various industrial applications. As one of the flagship models from General Electric, the GE 255 has garnered attention for its performance, design, and technological advancements.

One of the main features of the GE 255 is its advanced aerodynamics. The turbine incorporates cutting-edge blade designs that enhance airflow and optimize combustion efficiency. These aerodynamic improvements contribute to increased power output, allowing the turbine to generate more energy while consuming less fuel. The efficiency of the GE 255 makes it an attractive option for power plants looking to reduce operational costs while maintaining high output levels.

In addition to its aerodynamic features, the GE 255 is equipped with sophisticated combustion technology. This technology enables the turbine to achieve low emissions, adhering to strict environmental regulations. The combustion system is designed to provide stable and reliable operation across various load conditions, ensuring that power generation remains consistent even in fluctuating demand scenarios.

The GE 255 also boasts a modular design, allowing for easier maintenance and upgrades. The components are designed with serviceability in mind, ensuring that downtime is minimized during routine inspections or repairs. This modular approach not only enhances the overall lifespan of the turbine but also allows operators to implement technology upgrades as they become available, ensuring that the equipment remains state-of-the-art.

Moreover, the GE 255 integrates advanced monitoring and control systems that provide real-time data on performance and operational health. These systems enable operators to make informed decisions, optimizing performance and identifying potential issues before they escalate. The data collected can be analyzed to improve operational practices and reduce maintenance costs.

The turbine's robust construction also contributes to its reliability. Built to withstand harsh operating conditions, the GE 255 includes features that protect critical components from wear and degradation. This durability extends the operational life of the turbine and enhances its overall availability for power generation.

In summary, the GE 255 is a state-of-the-art gas turbine distinguished by its advanced aerodynamics, low emissions combustion technology, modular design, and robust monitoring systems. It represents a blend of efficiency and reliability, making it a leading choice for energy providers aiming to maximize output while minimizing environmental impact. Its combination of innovative features positions the GE 255 as a significant player in the competitive landscape of gas turbines.

GE 255 operation manual System Operation

Models: 255