Product category:
Plant Design and Construction
News Release from: Arc Energy Resources | Subject: Performance testing valves
Edited by the Processingtalk Editorial
Team on 15 April 2004
Arc Energy helps to protect Severn
Glocon valves
Gloucester-based Severn Glocon has 40 years experience designing and developing specialised control valves for the oil and gas, chemical, pharmaceutical, power and industrial gas industries world-wide
Gloucester-based Severn Glocon has over 40 years experience designing and developing standard and highly specialised control valves for customers in the oil and gas, chemical, pharmaceutical, power, and industrial gas industries world-wide Recently the company was given the opportunity to quote and win an order for control valves for a major new oil and gas production platform to be stationed in the Mediterranean Sea
This article was originally published on Processingtalk on 25 Mar 2004 at 8.00am (UK)
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Protecting new and refurbished oilfield valves
Weld overlay cladding specialist Arc Energy Resources has applied a coating of corrosion resistant alloy for A Finkl and Sons, to protect a brand new oilfield valve and refurbish an old one
Time critical cladding contracts delivered ontime
Welding and fabrication specialist Arc Energy Resources completed two fast-track weld overlay cladding projects for the Pembroke refinery of Chevron Texaco, each one completed in under two weeks
The specification called for the valves to be constructed from Incoloy 825 and Inconel 625 materials to give additional protection for the valve bodies, flanges and bonnets against the sour, H2S gas and associated condensate streams produced.
Many of the small valve sizes could be cast in the expensive 825 and 625 materials at a competitive price, but two 24" 1500ASA severe-service valves required careful consideration to material choice and cost.
For these two valves, Technical and Commercial Sales Manager Allan Homfray turned to weld overlay cladding specialist Arc Energy Resources, who had the expertise to provide a complete service, overlay cladding Inconel 625 onto a lower cost alloy steel base and fabricating the flanges to the body.
The valves, which were forged from high-strength, low-temperature A350 LF3 steel and weigh almost eighteen tonnes each when completed, were clad on one of the seven Arc Energy workstations that were specially equipped with a hired rotator to cope with the exceptional size and weight.
Comments Arc Energy sales manager Alan Brown: "Due to critical elements of the design and function of the valve bodies, it was necessary for us to qualify new welding procedures to work on the high-strength materials.
These included designing and producing our own special welding heads for the automated TIG process to enable certain areas of the valve bodies to be welded blind." He adds that after applying a coating of Inconel 625 to the bodies, flanges and bonnets, Arc Energy welded the flanges to the valve bodies, radiographed all welds and stress relieved the completed work - all in-house.
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