What Is a Flex Connector?

A flex connector (also called a flexible sleeve or flex boot) is a flexible coupling made of silicone, rubber, or fabric installed between the vibratory separator's inlet or discharge spouts and the fixed ductwork or hoppers, absorbing vibration to prevent stress on rigid piping connections. Flex connectors are essential accessories on every vibratory separator installation.

Because a vibratory separator moves continuously during operation, connecting it directly to fixed piping or hoppers would transfer destructive vibration to the facility's ductwork — or worse, constrain the separator's motion and compromise screening performance. Flex connectors provide the needed isolation between the vibrating machine and the stationary world around it. They are available in FDA-compliant silicone for food and pharma applications, neoprene for chemical resistance, and reinforced fabric for general industrial use.

Why This Matters in Vibratory Screening

• Vibration isolation — Prevents vibration transfer from the separator to building structure and surrounding equipment.
• Containment — Maintains dust-tight or liquid-tight seal at inlet and discharge connections.
• Protects piping — Absorbs motion that would crack or fatigue rigid connections.
• Does not restrict motion — Properly sized flex connectors allow the separator to vibrate freely without damping the screening motion.

Related Glossary Terms

• Discharge Spout — Where flex connectors attach at the outlet
• Feed Inlet — Where flex connectors attach at the inlet
• Springs and Spools — Other vibration isolation components

Flex Connector FAQs

What is a flex connector on a vibratory separator?

A flexible sleeve between the vibrating separator and fixed ductwork that absorbs motion, prevents stress on piping, and maintains a seal at all connections.