Bellows-Type Pump Connector

Keflex™ Bellows-Type Pump Connectors are engineered for maximum vibration absorption, long cycle life, and safe operation in both suction and discharge lines. Constructed with multi-ply laminated stainless steel bellows—up to sixteen plies in larger diameters—they outperform rubber and elastomeric connectors that degrade under heat or UV exposure.

Each assembly compensates for axial, lateral, and angular movement while heavy-duty restraining rods and shatter-proof spacers protect against distortion and anchor failure. Optional internal liners are available for high-velocity or steam service. Compact face-to-face dimensions simplify installation, making these pump connectors ideal for pumps, compressors, and mechanical equipment in HVAC, industrial, and energy systems.

Features & Benefits

Up to 16 Stainless Steel Piles
– Max vibration absorption, safety, and cycle life
Soft Spring Rate
– Ease of installation
150# or 300# Drilling Patterns
– Meets most installation needs
Floating (Van Stone) flanges (Optional)
– Ease of Installation
Available in Multiple ID Differentials
– No Concentric Reducer Required
Elongated Bolt Holes
– Ease of Alignment
Carbon Steel Tie Rods
– Prevents Over-elongation
Chatter-Proof Spacers
– Prevents Over-compression

Application

– Absorbs vibration and noise in pump, compressor, and pipeline systems
– Compensates for multi-plane axial, lateral, and angular movement
– Reduces piping stress and misalignment in suction and discharge lines
– Ideal replacement for short, braided metal hose and rubber expansion joints
– Suitable for high-temperature or steam applications where elastomeric joints fail
– Provides maximum safety and reliability in critical mechanical systems

Markets Served

– HVAC and Building Mechanical Systems
– Water and Wastewater Treatment Facilities
– Industrial Process and Power Generation Plants
– Chemical and Petrochemical Industries
– OEM Pump and Compressor Manufacturers
– Marine and Offshore Applications

View Brochure and Technical Data