Industrial decanter FW400 HTS

for wastewaterfor sludge dewateringcentrifugal

Overview
Flottweg FW400 HTS decanter centrifuge is engineered for efficient dewatering of sewage sludge (municipal and industrial). It reduces sludge volume, simplifies handling and lowers transport and disposal costs while offering modular flexibility and a user-friendly design.

Key benefits

• Increased bowl speed and super-deep pond for improved solid-liquid separation.
• Modular Flex Concept for flexible application and upgradeability.
• Low-maintenance design with improved housing seal and foldable belt guard for easy access.

Performance Boost

• Higher dewatering efficiency reduces operating and disposal costs.
• Increased torque and open-grid structure for improved performance and energy efficiency.
• Reduced energy consumption and ecological footprint through Performance Boost and Super-Deep Pond.

Flex Concept

• Modular design enables customization and a wide range of options.
• Additional taper angle increases versatility and operational reliability.
• Upgradeable and adaptable to changing process requirements.

Human-Centered Design

• Improved housing seal protects against environmental influences and reduces downtime.
• Foldable belt guard allows easy access for maintenance and repair.
• Low-noise design improves working conditions and ergonomics.

How the FW400 HTS works
Digested or excess sludge is fed from the digester into the FW400 HTS where centrifugal force separates solids and liquids. Typical inlet dry solids of approx. 2–6% can be increased to 25–35% after dewatering. Differential speed, pond depth and scroll design are adjustable to optimise retention time, compaction and separation performance.

Advanced features

• Flottweg Decanter Scroll conveys solids toward the conical end at an optimal differential speed; various scroll designs available for different processes.
• Overflow weir permits precise pond depth adjustment without disassembly.
• Adjustable differential speed between bowl and screw conveyor to control retention time and compaction.
• Recommended lubrication: Endrive gear oil and Sympact roller bearing grease for extended drive and bearing life.
• Recuvane® energy recovery reduces power consumption by approx. 10–20%.

Technical data
Dimensions (L×W×H): 3650×1200×1100 mm / 11.97×3.94×3.61 ft. Weight: 2900–3100 kg / 6,393–6,834 lb. Typical inlet dry solids: 2–6%; typical outlet: 25–35%. Design highlights: increased bowl speed, Super-Deep Pond, Flex Concept modularity, foldable belt guard, improved housing seal; energy features: Performance Boost, Recuvane®.