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  • TWIN BALL DB&B VALVES

    TWIN BALL DB&B VALVES

    When assured valve shut off and absolute isolation are required, DAFRAM provides Double Block and Bleed valves that consist of two main in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two obturators.

  • TOP ENTRY BALL VALVES

    TOP ENTRY BALL VALVES

    Top-entry construction is also available for special applications such as: Sour service ball valve, High temperature ball valve, Cryogenic ball valve, Underground ball valve, Metal Seated ball valve, High Alloy ball valve.

  • SUBSEA BALL VALVES

    SUBSEA BALL VALVES

    DAFRAM subsea ball valves are available in different construction versions: bolted-body side-entry or top-entry and fully welded body.  As a standard, valve design, materials and testing are according to API 6DSS but the most demanding Customer specifications can be met upon request. Hyperbaric test is also available at DAFRAM Testing Department.

  • HIPPS VALVES

    HIPPS VALVES

    DAFRAM valves for HIPPS applications are specifically designed in order to meet very strict requirements given by International Standards and service conditions. Special attention is dedicated to valve drive train design and seat materials selection because of the considerable speed of shut down operation.

  • TRUNNION BALL VALVES

    TRUNNION BALL VALVES

    ABRASIVE SERVICE, HIGH TEMPERATURE SERVICE, CRYOGENIC SERVICE, SOUR SERVICE (API 6D, 7.7), CORROSIVE SERVICE, EMISSION FREE VALVES, EXPLOSIVE DECOMPRESSION, PARTICULAR FLUIDS, SPECIAL VALVE PATTERN

  • HIGH PRESSURE VALVES

    HIGH PRESSURE VALVES

    Ball valves for high pressure service are according to API 6A standard and available in different construction versions. Quality control level is up to PSL 4 and performance requirements and tests are up to PR2. Special valves for HIPPS application are also available together with operation devices.

  • control valve

    Control Valve

    Due to a very large flow passage DAFRAM control ball valves can grant high flow coefficients compared to other valve types. Thanks to their operating principle, quarter-turn ball valves are able to control fluid flow at very small openings and to open at high differential pressure.

  • RESEARCH AND DEVELOPMENT

    RESEARCH AND DEVELOPMENT

    Five years ago Research & Development Department was created inside DAFRAM Company as a group of young engineers who have the task of studing and testing new materials and processes in order to improve DAFRAM valve quality and performance. Special attention is dedicated to simulation of critical service conditions on prototypes.

  • ENGINEERING

    ENGINEERING

    DAFRAM's engineering department is continually working to innovate, refine and improve products. Our engineers can work with the most advanced software applications such as Autocad, Pro-Engineer, Pro-Mechanica.

  • PRODUCTION

    PRODUCTION

    DAFRAM manufacturing plant is equipped with machines covering the complete valve production range; special machines are dedicated to the production of all the valve components and the whole construction process is executed in DAFRAM plant.

Slide home

  • TWIN BALL DB&B VALVES

    When assured valve shut off and absolute isolation are required, DAFRAM provides Double Block and Bleed valves that consist of two main in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two obturators.

    en/products/twin-ball-db-b-valves

  • TOP ENTRY BALL VALVES

    Top-entry construction is also available for special applications such as: Sour service ball valve, High temperature ball valve, Cryogenic ball valve, Underground ball valve, Metal Seated ball valve, High Alloy ball valve.

    en/products/top-entry-ball-valves

  • SUBSEA BALL VALVES

    DAFRAM subsea ball valves are available in different construction versions: bolted-body side-entry or top-entry and fully welded body.  As a standard, valve design, materials and testing are according to API 6DSS but the most demanding Customer specifications can be met upon request. Hyperbaric test is also available at DAFRAM Testing Department.

    en/products/subsea-ball-valves

  • HIPPS VALVES

    DAFRAM valves for HIPPS applications are specifically designed in order to meet very strict requirements given by International Standards and service conditions. Special attention is dedicated to valve drive train design and seat materials selection because of the considerable speed of shut down operation.

    en/products/hipps-ball-valves

  • TRUNNION BALL VALVES

    ABRASIVE SERVICE, HIGH TEMPERATURE SERVICE, CRYOGENIC SERVICE, SOUR SERVICE (API 6D, 7.7), CORROSIVE SERVICE, EMISSION FREE VALVES, EXPLOSIVE DECOMPRESSION, PARTICULAR FLUIDS, SPECIAL VALVE PATTERN

    en/products/trunnion-ball-valves

  • HIGH PRESSURE VALVES

    Ball valves for high pressure service are according to API 6A standard and available in different construction versions. Quality control level is up to PSL 4 and performance requirements and tests are up to PR2. Special valves for HIPPS application are also available together with operation devices.

    en/products/high-pressure-service-valves

  • Control Valve

    Due to a very large flow passage DAFRAM control ball valves can grant high flow coefficients compared to other valve types. Thanks to their operating principle, quarter-turn ball valves are able to control fluid flow at very small openings and to open at high differential pressure.

    en/products/control-ball-valves/main-features

  • RESEARCH AND DEVELOPMENT

    Five years ago Research & Development Department was created inside DAFRAM Company as a group of young engineers who have the task of studing and testing new materials and processes in order to improve DAFRAM valve quality and performance. Special attention is dedicated to simulation of critical service conditions on prototypes.

    en/company/research-development

  • ENGINEERING

    DAFRAM's engineering department is continually working to innovate, refine and improve products. Our engineers can work with the most advanced software applications such as Autocad, Pro-Engineer, Pro-Mechanica.

    en/company/engineering

  • PRODUCTION

    DAFRAM manufacturing plant is equipped with machines covering the complete valve production range; special machines are dedicated to the production of all the valve components and the whole construction process is executed in DAFRAM plant.

    en/company/production

Details
Category: News
oga 2019

  

Kuala Lumpur, Malaysia, 18 – 20 June 2019

PLEASE VISIT OUR BOOTH AT HALL 1, 1024 FROM 18- 20 JUNE, 10:00 – 18:00.

Details
Category: News
Dafram at IVS 2019

  

Bergamo (IT), 22-23th May

We are there! We invite all of you to visit us in Hall A Booth 152.

Details
Category: News
courtesy of Picchio news  

Eng. Aldo Chiavari, as DAFRAM President, has been awarded the honorary title of Commander of the Order of Merit of the Republic by Italian President Sergio Mattarella, “for the sensitivity and generosity with which the company supported two employees deeply grieved by illness and subsequent passing of their daughter”.

Proud to be part of DAFRAM family.

Details
Category: News
valveworld 2018 relazione  

DAFRAM paper has been selected for Valve World Conference 2018 by the Steering Committee. Marco Sparisci (Technical Manager) presented how DAFRAM has developed a dedicated valve design for high temperature applications and has approached the very crucial aspect of coatings for components of ball valves dedicated to severe service.

Paper title:
Ball valves for extreme high temperature service: design and coating validation by means of bench sessions and performance tests.

Abstract:
Today, Manufacturers of piping equipment have to deal daily with new demanding process conditions including thermal shocks, repetitive thermal cycles, high differential pressures and corrosive fluids and this is due to changes in methods of processing and increasing of process durations.

In this scenario ball valve design and materials work together to grant durability and effectiveness of equipment.
For those critical applications, it is essential a dedicated valve design that takes into account effects of high temperature on both trim and body metallic components by means of Finite Element Analysis and R&D test sessions. Accurate simulation of real working conditions of coated components is possible by means of specific test bench that performs mechanical-thermal cycling and collects reliable data.
A valve design dedicated for the following case study was developed. DAFRAM was appointed as ball valve manufacturer for an innovative refining plant that is focused on efficient use of heavy residues of refining process. Modern technologies and facilities imply very demanding conditions such as high pressures (up to class 2500 ANSI) and high temperatures (up to 704 °C) for piping components. Object of product development were design validation and coating selection.

Author:
Marco Sparisci, Lead Product Engineer, DAFRAM SpA
Co-author:
Enrico Palmieri, R&D Engineer, DAFRAM SpA

Details
Category: News
vw 2018

  

Düsseldorf (DE), 27-29th November

DAFRAM will take part to the Conference as Speaker in 27th November 2.40 pm Conference Design Session, Room 1.
  1. Dafram at ADIPEC 2018
  2. Dafram at ONS 2018
  3. Dafram at OTC 2018
  4. Dafram attended Aramco Valve Symposium - The Hague, 1st-2nd November 2017

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DESIGN CHANGES

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