Calobri, was founded in 1949 by Mr. Brivio to supply the reconstruction of the petrochemical industry following the war. Soon Calobri specialized in severe applications valves in forged steel and gained an excellent reputation in the Italian market. In the late 60' Calobri started exporting to the at the time nascent North Sea market of Netherlands, Norway and Scotland becoming one of the major supplier to the off-shore industry. With the expansion of the industry in the 70 Calobri started exporting in the Middle East and Asia entering in all major oil companies AML. Today Calobri is a well know brand on the market with an outstanding record of service and quality.

   At the 50th anniversary Calobri has started a new round of development: a young, professional team with a strong technical and commercial background has entered the company. Calobri has entered into an alliance agreement with a major valve manufacturing group specialized in forged steel valves enabling therefore to benefit from a stronger financial position, access to a worldwide supplier base and new and improved designs. We are therefore equipped to be a major player in the valves market for the next 50 years as we have been up to now.

API 602 Valves – Gate, Globe and Check Valves NPT, SW and BW Ends – Class 800, 1500, 2500 and 4500 Integral Flanged & BW Ends – Class 150, 300, 600, 1500 and 2500
API-BS5352 Valves – Cryogenic Gate and Globe Valves NPT, SW and BW Ends – Class 800, 1500 and 2500 Integral Flanged & BW Ends – Class 150, 300, 600, 1500 and 2500
Bellow Seal Valves – Gate & Globe Valves NPT, SW and BW Ends – Class 800, 1500 and 2500 Integral Flanged Ends – Class 150, 300, 600, 1500 and 2500
Eco-L-Valves – Short Pattern Globe Valves (Licensed from OMB) Eco-L-Gate – Short Pattern Bellows Gate Valves Bolted, Welded, Integral Flanged Ends – Class 150, 300 and 600
Steam Service Valves Forged Steel Valves Y-Pattern Globe and Check, Y-Pattern Bonnetless Globe, Straight Pattern Globe and Check – Class 1500, 2500 and 4500
Pressure Seal Valve Forged Gate and Globe Valves NPT, SW, BW and Integral Flanged Ends – Class 900, 1500 and 2500

Specifications :

Packing
It takes 50 years to excel in fugitive emission control! Calobri packing have undergone a continuous development to achieve the best results with the lowest cost impact. Our packing offers now include traditional square section graphite packing and cup-and-cone designs.

Gasket
Calobri gaskets and contact area have been designed to meet the most stringent request: Zero Emission. Calobri is now able to certify 0PPM emission from the gasket area thank to special anti-extrusion design, closer tolerances and controlled material density.

Seats
GATE valves seats are pressed-in: design, tolerances and procedure ensure a perfect fit. On request and for special service we can supply welded-in seats.
GLOBE: both renewable (screwed-in) or integral seat are available. Renewable seat is standard up to class #800.
STELLITE(R) grade 6 is the usual hardfacing material when this is requested.

Stem and Wedge
We have been working to improve these two components in two areas: perfect exterior surfaces of stem to guarantee smooth operation and lowest emissions and tight tolerances in the connection to meet stringent "Pull Test" resistant design request.