How does the FLEX-GEAR HD compensation spring band, 845 series, stainless steel maintain a hose seal during temperature-induced shrinkage?

The FLEX-GEAR HD compensation spring band, 845 series, stainless steel maintains a hose seal during temperature-induced shrinkage by using an integrated spring washer assembly under the screw head. Ten disc (washer) springs act as a preload that automatically compensates for reductions in hose diameter caused by cold flow or large thermal fluctuations. As the hose shrinks, the stacked disc springs compress further but continue to exert outward force on the screw head, keeping constant radial tension of the 16 mm band around the hose. This sustained clamping force preserves a continuous seal around the entire circumference and prevents leaks. Key features that enable this performance: - Spring mechanism provides automatic diameter adjustment while maintaining grip. - Disc springs visibly flatten when properly tightened, confirming correct preload. - Internal insert protects the hose surface during compression. - Stainless steel construction (screw/lock 410, band 300) ensures durability under temperature cycling. - Recommended tightening torque 8.5 Nm (max 14.1 Nm) to set the spring preload correctly. Because the spring compensates for dimensional changes, the FLEX-GEAR HD compensation spring band, 845 series, stainless steel is especially suitable for heavier applications and installations exposed to large temperature variations.

Can the FLEX-GEAR HD compensation spring band, 845 series, stainless steel be reused after disassembly and multiple temperature cycles?

Yes - the FLEX-GEAR HD compensation spring band, 845 series, stainless steel can be reused after disassembly and multiple temperature cycles, provided the components remain undamaged and functional. The built-in spring pack (10 disc springs under the screw head) is designed to compensate for dimensional changes and maintain sealing through repeated thermal expansion and contraction. Before reuse, inspect that: the disc springs are not cracked, flattened beyond recovery, or corroded; the screw/lock (stainless steel 410) threads and housing are intact; the band (stainless steel 300) and internal insert show no deformation or damage to the hose surface. Reinstall using recommended tightening torque (8.5 Nm, max 14.1 Nm) and ensure proper clamping indicated by the screw end protruding and flattened springs. If any component is compromised, replace the clamp.

Does the FLEX-GEAR HD compensation spring band, 845 series, stainless steel require special tools for correct installation?

No. the FLEX-GEAR HD compensation spring band, 845 series, stainless steel does not require special tools for correct installation. It is tightened like a standard worm-drive band clamp; use a screwdriver or a 1/4" (or compatible) drive to apply torque. Recommended installation torque is 8.5 Nm (maximum 14.1 Nm). Correct clamping is indicated when the screw end protrudes beyond the housing and the disc springs are flattened. The built-in spring pack (10 disc springs) automatically compensates for dimensional changes, so no additional special equipment is needed beyond a tool capable of achieving the specified torque.

FLEX-GEAR HD compensation spring band, 845 series, stainless steel

All products, Clamps for mounting ends/

Additional information

Material	SS – stainless steel

Band clamp with a worm drive equipped with a spring for compensating dimensional changes in the connection (shrinkage of the hose due to cold flow of the material or due to large temperature fluctuations). The spring consists of a set of 10 disc springs (washer springs) – washers under the head of the screw. This ensures the maintenance of the clamp’s grip and sealing around the entire circumference of the hose, preventing leaks from the installation. The spring mechanism of the clamp allows for automatic adjustment of its diameter while maintaining the clamp’s grip. Particularly recommended in cases of large temperature changes for heavier applications. Proper clamping of the clamp is indicated by the screw end protruding beyond the housing of the lock and the flattened disc springs. The internal insert of the clamp protects the hose surface from damage. Installation tightening torque 8.5 Nm (max. 14.1 Nm). Screw/lock material: stainless steel 410. Band material: stainless steel 300. Band width: 16 mm (5/8″).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
AB-845175	FLEX-GEAR HD band 25÷45 mm, SS	-	-	In stock	Enquiry
AB-845200	FLEX-GEAR HD strap 32÷54 mm, SS	-	-	In stock	Enquiry
AB-845250	FLEX-GEAR HD strap 45÷67 mm, SS	-	-	In stock	Enquiry
AB-845300	FLEX-GEAR HD strap 57÷79 mm, SS	-	-	In stock	Enquiry
AB-845350	FLEX-GEAR HD strap 70÷92 mm, SS	-	-	In stock	Enquiry
AB-845400	FLEX-GEAR HD band 83÷105 mm, SS	-	-	In stock	Enquiry
AB-845450	FLEX-GEAR HD strap 95÷117 mm, SS	-	-	In stock	Enquiry
AB-845500	FLEX-GEAR HD band 108÷130 mm, SS	-	-	In stock	Enquiry
AB-845550	FLEX-GEAR HD strap 121÷143 mm, SS	-	-	In stock	Enquiry
AB-845600	FLEX-GEAR HD strap 133÷155 mm, SS	-	-	In stock	Enquiry
AB-845650	FLEX-GEAR HD strap 146÷168 mm, SS	-	-	In stock	Enquiry
AB-845700	FLEX-GEAR HD strap 159÷181 mm, SS	-	-	In stock	Enquiry
AB-845750	FLEX-GEAR HD strap 172÷193 mm, SS	-	-	In stock	Enquiry
AB-845800	FLEX-GEAR HD strap 184÷206 mm, SS	-	-	In stock	Enquiry
AB-845850	FLEX-GEAR HD band 197÷219 mm, SS	-	-	In stock	Enquiry
AB-845900	FLEX-GEAR HD strap 210÷232 mm, SS	-	-	In stock	Enquiry

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Band clamp with a worm drive equipped with a spring for compensating dimensional changes in the connection (shrinkage of the hose due to cold flow of the material or due to large temperature fluctuations). The spring consists of a set of 10 disc springs (washer springs) – washers under the head of the screw. This ensures the maintenance of the clamp’s grip and sealing around the entire circumference of the hose, preventing leaks from the installation. The spring mechanism of the clamp allows for automatic adjustment of its diameter while maintaining the clamp’s grip. Particularly recommended in cases of large temperature changes for heavier applications. Proper clamping of the clamp is indicated by the screw end protruding beyond the housing of the lock and the flattened disc springs. The internal insert of the clamp protects the hose surface from damage. Installation tightening torque 8.5 Nm (max. 14.1 Nm). Screw/lock material: stainless steel 410. Band material: stainless steel 300. Band width: 16 mm (5/8″).