W. Maass (UK) Ltd - Pipe Flanges and Pipeline Equipment

W. Maass (UK) is a manufacturer of pipe flanges and pipeline equipment serving the needs of the oil, petrochemical and process related industries. Based in St. Helens, production is concentrated on subsea components in CRA materials suitable for use in harsh environments, such as the UK continental shelf.

Manufactured components include:

• Pipe flanges
• Swivel ring flanges
• Bulkheads
• Anchor flanges
• Spectacle blinds/spades/spacers
• Manifold blocks
• Tubesheets

Materials include all grades of stainless steel, duplex, super duplex, six Moly nickel alloys, titanium, high yield carbon steel and CRA overlay.

Experienced sales engineers are familiar with the latest material technology and specifications demanded by the oil and petrochemical industries. W. Maass (UK) Ltd are well respected manufacturers, whose customers recognise their ability in producing special products, very often for fast track project requirements. Design and product development is aided by Pro Engineer in house software.

Swivel ring flanges

W. Maass (UK) Ltd have designed a standard range of ASME/ANSI swivel ring pipe flanges. The flanges are suitable for connecting to regular commodity items and/or can be modified to suit clients’ specific design conditions.

Project experience lists of successful supply contracts can be provided on application. Historic projects completed include:

Britannia field project, UK, North Sea

W. Maass manufactured subsea manifold blocks in duplex stainless steel for the Britannia project. A total of 28 blocks were supplied with a finished weight of 720Kg each. The company were awarded a quality initiative award on this project.

PS 3 and PS 2 project, Q.G.P.C.

W. Maass produced hydrocyclone reject plates in duplex stainless. A total of 12 reject and support plates were supplied as internal components for a De-oiling Hydrocyclone Package.

Eastern trough area project development, UK, North Sea

W. Maass were responsible for the design, manufacture and supply of subsea pipeline flanges and bulkheads, in high yield carbon steel, super duplex and Alloy 625 CRA overlay. The company provided fast track supply for this high pressure, high temperature development. The total value of the order was in excess of £1.5 million.

Tern/Eider water injection pipeline, UK, North Sea

A 16.3/4" X 7.1/16" API 5000 PSI flanged reducing cross outlet was designed and manufactured in high yield carbon steel with Alloy 625 CRA overlay internals. Approximate finished weight 3,600kg.

Shell Gannet E & F project, UK, North Sea

High yield carbon steel end and intermediate bulkheads were supplied in ASTM A694 F65 material for use in pipeline bundle fabrication.

Facilities

Facilities include a 40,000ft². machine shop, incorporating conventional, NC and CNC equipment together with a 22,000ft². stockholding/distribution centre.

Quality

W. Maass (UK) Ltd operate a Quality Management System which is fully approved to BS EN ISO 9001 by Lloyd's Register Quality Assurance. Original approval was appointed in 1992 and has been continually updated. In-house quality testing includes for positive material identification, ferrite checking, dye penetrant testing, ultrasonic testing and magnetic particle examination.

Current projects

W. Maass (UK) Ltd is currently involved in supplying the following projects:

• Hyundai Heavy Industries, Unn Shiaf Project - ASME B16.5 alloy 625 pipe flanges
• Origin Energy Resources (Kupe) Ltd, Kupe Gas Project - design and supply of 12in ASME 2500LB sub-sea flanges, duplex stainless steel / DNV OS F101 testing
• NPCC, Al Shaheen Field Development - supply of six Moly ASME pipe flanges and nozzles
• Statoil, Veslefrikk 2020 project - supply of de-oiling hydrocyclone reject and support plates
• Saipem ENI Australia, Blacktip Project - design and supply of sub-sea pipe flanges, anchor flanges, stud bolts and gaskets. ASTM A694 F65 / CRA Clad