Weir Pumps
of Glasgow
1970 G. and J. Weir was renamed Weir Pumps Ltd[1] which also included Drysdale and Co, Harland Engineering Co and Weir Drysdale Service (London). The company was a member of the Weir Group.
2007 May: Weir Group sold its Glasgow-based business Weir Pumps to Jim McColl's Clyde Blowers plc, with the pump company subsequently being renamed as Clyde Pumps
Weir Pumps acquired part of the Mather and Platt business, where a team headed by C. V. Roscoe and K. J Gradwell had developed a super duplex stainless steel, named Zeron 100, for pump components requiring high corrosion resistance, strength and wear resistance. Weir Pumps named the business Weir Materials & Foundries, but later closed the Manchester site and foundry. The Zeron 100 trademark is now held by Rolled Alloys Inc.[2][3]