Since the beginning of the 20th century, between tradition and innovation
Products
Our main production consists of all standard flanges in addition to special custom components
in accordance with all international standards:
• Welding Neck
• Blind
• Slip On
• Socket Weld
• Threaded
• Lap joint
• Long Welding Neck
• Orifice flanges
• Spectacle Blinds
• Ring spacers and spades
• Cladded flanges / Weld overlayed flanges
• Drip Rings
• Compact flanges
• Clamp connectors
• Anchor flanges
• Swivel Rings
• Misalignment flanges
• Buckle arrestors
• Bulkheads
• J-Lay Collars
• Adaptors
• Nozzles
• Tube sheets
• Rings
• Hollow forgings
• Ball valves components
• Weldolets
• Stub Ends
• Weldoflanges
• Nipo flanges
• Forged tubular products
• Y pieces
• Special flanges acc. to client drawing or
  designed in accordance to particular client’s
  requisitions
Production range
Officine Ambrogio Melesi produces a wide
range of products in-house:
• Maximum weight 5 tons
• Maximum external diameter 3,500 mm
• 1,000,000 pieces per year
• 60,000 tons production per year
Business system
Although the company’s core business is standard flanges, non-standard products have also received recognition
from all major companies in the following application fields:
• Oil and gas
• Chemical and petrochemical
• Aerospace
• Transmission
• Construction and mining
• Power generation
• Wind power
• General mechanics
• Water treatment - Desalination
Company profile
Officine Ambrogio Melesi, experience and competence in the name of tradition and continuous innovation for 100 years.
OFFICINE AMBROGIO MELESI was founded in 1914 for the production of agricultural tools. After its refoundation,
in 1946, the activity grew up and evolved steadily. In 1952 the company began the production of forgings. Over the
years the company has carried on a relevant development process acquiring the leadership in the national markets
and has confirmed a leading positioning in the international markets thanks its know how, skills and competence. The
company is appreciated by the major international clients worldwide and its flanges and forged components are part
of the main oil & gas projects. Technical consultancy, highly quality products, both standard and special ones, service
excellence are the key factors highlighting the Officine Ambrogio Melesi activities.
Thanks to its high technical level Officine Ambrogio Melesi is able to engineer, produce and supply special items
properly carried out in order to satisfy all the needs of the clients. Officine Ambrogio Melesi, thanks to its highly qualified
and wide range of equipment, gets the clients to rely on an excellent service in terms of quality of products, assistance
and just in time delivery.
                    is to achieve excellence in customer
satisfaction through continuously improving process,
products, quality, delivery, documentation and services.
                  and professional commitment raise
general performance and find a solution to your
demands.
Materials                           Production
Officine Ambrogio Melesi keeps
very large stocks of raw material
                                    equipment
and forgings in:                    Officine Ambrogio Melesi boasts
                                    an extremely modern, sophisticate
• Carbon Steels
                                    production line, consisting of:
• Steels for low temperature
• Special low sulphur carbon        • Multiple forging lines
  steels for sour service (HIC        (mechanical presses -
  and SSCC test)                      counterblow hammers,
• High yield carbon steels            hydraulic presses - ring
• API 6A materials for                rollers)
  wellhead and Christmas            • Heat treatment facilities
  tree equipments                   • Numerous CNC machines
• Low alloy steels                    and fully automated
• Stainless steels                    workstations
• Duplex – Superduplex              • Fully equipped testing
  steels                              laboratory
• Nickel Alloys
• Copper Alloys
• Titanium
• Construction steels
Manufacturing
standards
•   ASME B 16.5
•   ASME B16.48
•   ASME B16.36
•   ASME B16.47/A
•   ASME B16.47/B
•   API 6 A - ISO 10423
•   API 17D
•   Norsok L - 005
•   EN European standard
•   BS 1560-3293-4504-10M
•   DIN
•   AFNOR
•   UNI
•   AWWA
•   Client standards
or designed to
• ASME VIII Div 1
• ASME VIII Div 2, including
  Finite Element Analysis
• DNV OS - F101
• BS PD 5500
• ASME B31.3/B31.4/B31.8
• Stoomwezen
Quality system
The Quality Management system of Officine Ambrogio Melesi has been
certified by DNV in compliance with the UNI-EN-ISO 9001: 2008.
The company has also been approved by:
•   DNV, LLRR and RINA for ship construction materials
•   TÜV for PED 97/23/EC and AD 2000-Merkblatt W0/TRD 100
•   API in accordance to 6 A
•   All major oil and gas companies
Quality control
In our fully equipped in-house
laboratory, destructive and non
destructive tests are performed
to ensure a highly qualified
product.
                 Cortenova
         Lecco    follow
  Como            Valsassina
Milano
                                                                                                   Edition May 2017
                           Officine Ambrogio Melesi
                           Largo De Vecchi, 11
                           23813 Cortenova (LC) ITALY
                           Tel. +39 0341 98341
                           Fax +39 0341 983496
                                          983497
                           www.melesi.it
                           info@melesi.it
                           GPS: Please digit GPS coordinates
                           +46° 0' 8.65", +9° 23' 12.39" (46.002403, 9.386775) with route option
                           “Balisio” (if you come from Milan/Lecco)