ITT_127014 OWTF Hoist Winches

Description

The Open Water Test Facility (OWTF) at Wraysbury reservoir is a floating laboratory for test and characterisation of underwater acoustic transducers. The core capability requires the test object to be deployed at depth on the hoist station - to an approximate depth of 7 m below water surface. The large steel fixed gantry has a central shaft that is raised/lowered by means of electric wire rope winch. It is this winch that allows the test object to be positioned at the required depth. The current winch units are obsolete Felco units dating from the 1980/90's and require replacement. Each winch must be capable of deployment to an approximate depth of 7 m below water surface and 2.5 m clear of the surface when in its mounting position. The large steel fixed gantry has a central shaft that is raised/lowered by means of electric wire rope winch, which has a set of guide pulleys at the top of the fixed gantry. The new winch must be integrated into the existing steel gantry and anchor points. The run of the wire rope is to follow the same path as the current installation. The pulleys are to be replaced as part of the winch replacement to suit the wire rope diameter. The win…

Awards

Official publications

• ITT_129557 - Evaluation of the National Timing Centre R&D Programme (2019-25)
  Published: 19 March 2025
• RFQ_128875 - Study on Better Evidencing Impacts Attributable to NMS Laboratories' Work in Nanomedicines
  Published: 18 February 2025
• Study on Better Evidencing Benefits Attributable to NPL's Work in Radiotherapy
  Published: 18 February 2025
• RFQ_128938 - Evaluation of NPL Quantum Programme
  Published: 18 February 2025
• RFQ_128875 - NMS Survey for Healthcare Users
  Published: 18 February 2025
• RFQ_128032 - Bibliometric Assessment of the National Physical Laboratory's (NPL) Research Output
  Published: 18 February 2025
• ITT_121341 - Cryo-free QHR Fridge
  Published: 10 February 2025
• ITT_123111 - Cryogen Free Josephson Junction (JJ) Voltage System
  Published: 27 January 2025
• Cryogen Free JJ Volt System
  Published: 27 January 2025
• Laboratory building construction work (Building 47) for the National Physical Laboratory
  Published: 13 December 2024

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Frequently asked questions

What is the deadline to bid for this tender?

The submission deadline is 24 November 2023, 15:00. Check the official source, as dates can be modified.

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The contracting authority is National Physical Laboratory (United Kingdom).

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