Flygt N-Technology Pumps Flygt N 3315

Designed for medium-to-high flow rates, the Flygt N 3315 wastewater pump series provides efficient clog-free performance to achieve the lowest overall life-cycle costs. It is available with a variety of cooling system options, monitoring sensors, and impeller material options. It can be delivered for wet or dry installation (P, S, T, Z) and in explosion-proof versions.

Flygt N-Technology for Pumping Efficiency

Flygt N-pumps take on the toughest applications and get the job done, while lowering your power consumption and maintenance costs. By preventing both soft and hard clogging, the self-cleaning N-technology impeller delivers sustained high efficiency.

Most solid objects entering the pump will pass through the impeller between the impeller vanes. If an object gets caught on the leading edge of one of the vanes, it will slide along the backswept shape toward the perimeter of the inlet and be guided out through the relief groove.

Due to the mechanical self-cleaning impeller design, a sludge concentration up to 8% can easily be pumped.

Wear-Resistant Impeller Materials

Flygt Hard-Iron N-impellers were developed specifically for tough wastewater applications. While hardened grey iron impellers are available for typical wastewater applications, the Hard-Iron impeller provides superior wear resistance for abrasive and corrosive applications. Flygt’s Hard-Iron (60 HRC) impeller has demonstrated five times greater wear resistance compared to standard grey iron material.

A duplex stainless steel impeller is also available, for applications requiring a high resistance to corrosion.

The replaceable impeller wear ring is available in both Hard-Iron and grey iron.

Flexible Cooling Options

Cooling is a key aspect of pump performance. Flygt’s closed-loop cooing system uses the latest technology to provide industry-leading heat transfer and corrosion resistance. The system uses a precise mixture of pure water and a proprietary polypropylene glycol formulation and is freeze-proof down to -45°C.

For applications where liquid temperatures exceed 40°C, an external cooling system is available to allow utilization of the motor’s full power rating.

Tailored To Your Application

Flygt N 3315 pumps feature a modular design that can be customized to meet the requirements of your specific application. Every component is designed to provide long-term reliability and efficiency.

• Self-cleaning N-impeller in Hard-Iron, hardened grey iron or duplex stainless steel
• Replaceable wear ring in Hard-Iron or grey iron
• Short shaft overhang, reducing shaft deflection and increasing seal and bearing life
• Motor designed for submersible use, with Class H insulation and heat losses concentrated around the stator core for improved cooling properties
• Cooling via internal closed-loop cooling, direct cooling or for warm-liquid applications, external cooling
• Flygt Plug-in seal with Active Seal system for greater sealing reliability and zero leakage to motor. Available in Tungsten carbide (WCCR) or Silicone carbide (SiC)
• Flygt Spin-out seal protection option to prevent seal wear caused by abrasive particles
• Inspection chamber and built-in sensor for early leakage detection
• SUBCAB® motor cable specially developed for submersible use

Installation Configurations

Wet Pit (P)

 

​​Semi permanent, submersible pump installation. Wet pit arrangement with the pump installed on twin guide bars with automatic connection to the discharge pipe.​​

Portable (S)

 

​​​Portable, submersible pump installation. Portable pump with hose coupling or flange for connection to the discharge pipe.​​

Dry Installation Vertical (T)

 

​​​Vertical, permanent, dry pump installation. The submersible pump is installed in a dry pit, with flange connection to suction and discharge piping.​​

Dry Installation Horizontal (Z)

 

​​​Horizontal, permanent, dry pump installation. The submersible pump is installed in a dry pit, with flange connection to suction and discharge piping. ​​