Open Spring Mountings - Standard Range
Sizes OSB, OSS, OS25 and OS50

For Building Services Applications

This unique range of Open Spring mountings uses integral rubber end fixing of the springs which sets them apart from all other designs. Loose springs and plates are now history and high frequency noise attenuation is provided regardless of whether a rubber seating pad is used or not.

Originally designed for use with Type IPF Inertia Pouring Frames, the OS mountings are now widely used to isolate vibration from every conceivable type of rotating and reciprocating machine. Where control of transient motion is required Open Spring mountings can be used in conjunction with our Viscous Dampers Type SFD.

Design Features:

• Unique expanding rubber end fixing of springs (Patent applied for) which also provides high frequency attenuation.
• Nominal 20, 25 and 50 mm deflection colour coded helical steel springs to BS1726 Class B with 50% overload capacity and O/D equal to at least 85% of working height.
• Can be bolted to supporting structure or free standing on 6 mm thick ribbed rubber pad (3 mm on OSS).
• Fully height adjustable (OS25 and OS50).
• All steel components are zinc plated.
• No snubbing gives maximum efficiency.

Typical Applications:

• Axial and Centrifugal Fans.
• Air Handling Units.
• Low level pipework.
• With Inertia bases type IPF for pumps, generating sets and compressors etc.

Downloads:

• Data Sheet DS027 - General Installation Instructions
• Data Sheet DS044 - Maintenance Instructions
• Data Sheet DS045 - Maintenance and Inspection Record Chart
• Drawing S101 - OSB20/10 - OSB15/100
• Drawing S102 - OSS20/10 - OSS15/100
• Drawing S103 - OS25/30 - OS25/250
• Drawing S104 - OS25/200 - OS25/1200
• Drawing S105 - OS50/100 - OS50/500

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