Cober Srl
Italian quality for your Valves since 1972.
After beginning with the production of Seats with Soft and Metal Sealing, Cober has developed in the production of Trunnion and Floating Balls with two or more flow ways.
We are now able to provide complete kits (ball & seats) for Ball Valves from ½†to 72†for every type of application.
Our production is located on two production plants, where works over 60 high qualified people.
Thanks our over 40 years of experience and our Machine Park, we are able to do every type of precision mechanical processing up to 3000mm.
Our Products
Balls, Seats, Valves Components
Size Range
½ inches – 72 inches
Pressure Classes ANSI
150 to 2500 lb.
Pressure Classes API
2000 to 15000 psi
Worked Materials
• Stainless steel:
F6A, F6NM, F316, F316L, F316Ti, F316LN Mod, F304, F321, F44, 17-4/PH, XM19
• Carbon steel:
A105, LF2, 4140, F60
• Duplex & Superduplex:
F51, F53, F55
• Special Materials:
INCONEL 625 or 718, INCOLOY 825, HASTELLOY B or C, STELLITE, MONEL 400, MONEL K500
• BRONZE, TITANIUM, etc.
Surface Treatments
• Electroplating:
Nickel, Chromium and Zinc
• Carbide coatings:
Tungsten, Chrome and Stellite
• We are also able to provide weld overlay
Lapping:
Matching of kit (ball and seats) with soft and metal sealing, even after each type of surface treatments. To guarantee a perfect sealing we make the Alcohol Test.
Inserts for Soft Seals:
PEEK, DEVLON®, TEFLON, PTFE,
PTFE CARBOGRAPHITE, PCTFE, NYLON, etc.
Nondestructive Testing (NDT)
• DPE (Dye Penetrant Examination)
• PMI (Positive Material Identification)
• Visual Examination
• Hardness Test
• UT (Ultrasonic Test)
• MT (Magnetic Test)
• Thickness
Quality System
ISO 9001 Certification
