VÁLVULAS TRUNNION
Os produtos DAFRAM incluem:
-Válvulas esfera Tipo S
-Válvulas esfera Tipo P
-Válvulas esfera Tipo D...
VÁLVULAS TOP ENTRY
A DAFRAM desenvolveu um projeto avançado de válvula de esfera top entry numa ampla e completa gama de diâmetros e classes de...
VÁLVULAS DB&B
Quando solicitada uma válvula com vedação segura e um bloqueio absoluto, a DAFRAM fornece válvulas Double Block and Bleed...
VÁLVULAS HIPPS
HIPPS (Sistema de Proteção de Pressão de Alta Integridade) é um sistema dotado de instrumentação independente, que evita linhas...
VÁLVULAS ALTA PRESSÃO
Válvulas esfera DAFRAM para funcionamento em alta pressão são disponíveis em várias versões: corpo aparafusado, side entry ou...
VÁLVULAS CRIOGÊNICAS
Válvulas esfera DAFRAM para aplicações criogênicas estão disponíveis em versão com esfera flutuante ou com esfera trunnion...
VÁLVULAS SUBMARINAS
As válvulas esfera submarinnas da DAFRAM estão disponíveis em diversas versões: corpo aparafusado, side entry ou...
VÁLVULA MULTIPORT
Com as válvulas seletoras Multiport é possível receber um fluxo de cinco ou mais poços de petróleo ou gás... consiste em um corpo de aço...
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A DAFRAM S.p.A., fundada em 1956, foi a primeira empresa a construir válvulas tipo esfera flutuante na Itália. Sua grande experiência, amadurecida durante mais de 50 anos de atividade, faz com que a DAFRAM seja uma das mais conhecidas e competitivas empresas no mundo.
A unidade fabril da DAFRAM está localizada em Urbisaglia (Macerata), no centro da Itália, num complexo industrial de 32.000 metros quadrados, dos quais 12.000 são cobertos. O estabelecimento compreende o escritório comercial, setor técnico, setor de projeto e duas oficinas moderníssimas. A última delas tem 4.200 metros quadrados de área, 10 metros de altura e foi construída em fevereiro de 2008, permitindo produzir, montar, testar, armazenar e pintar válvulas tipo esfera com grandes dimensões e pesos.
ADIPEC 2022
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pt - Please come and visit us at our stand (1252 Hall 1) our team will be pleased to receive all of you. |
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IVS 2022
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pt - Thanks for visiting DAFRAM stand at IVS2022. It was really amazing to receive our customers and partners during this event. |
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Fiera IVS Industrial Valve Summit 25/26 Maggio 2022 |
Dafram at IVS 2022
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pt - We are exhibiting at IVS 2022 in Bergamo, May 25 & 26 2022. Pleased to receive you at Dafram stand 152 Hall A. |
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Fiera IVS Industrial Valve Summit 25/26 Maggio 2022 |
Control Valve Sizing
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PT - DAFRAM in collaboration with TRE P Engineering has developed a web tool (based on IEC 60534 - Industrial process control valves international standards) through which end users, engineering companies and valve specialists can approach the sizing of control valves. The web page (www.controlvalvesizing.eu) is presented as a classic data sheet for control valves, in which the main operating parameters requested for the specific application could be entered as an input. In a few seconds a response about the different types of DAFRAM Control Valves that can satisfy the requirements of the process is given as an output. This is to be considered as a first approach to the use of DAFRAM control valves, the further step will be a direct contact with DAFRAM technical and sales engineers to thoroughly study the best solution for each customer’s application. |
Dafram is Italian manufacturer of control valves
Slide controlvalve news en
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PT - DAFRAM control valves range consists exclusively of top quality trunnion mounted ball valves for high performance and critical applications with special configurations, size 1” to 48”, 150 lbs to 4500 lbs, PN10 to PN450, 2000 psi to 15000 psi, side entry, top-entry, full and reduced bore, in carbon steel, stainless steel, nickel and exotic alloys. 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. They are also able to maintain low fluid velocity thus lower noise and vibration to the pipeline. In addition, control ball valves allow tight and fast shut-off in case of emergency. DAFRAM control valves assure excellent flow characteristic and provide accurate, reliable control in a wide range of applications, such as chemical, power and oil, both on gas and liquid service. Both design and testing are performed by DAFRAM qualified engineers using dedicated software and hardware tools, Finite Element Analysis and Computational Fluid Dynamics for both structural and fluid dynamic design validation. Advanced calculation software and hardware allow to predict the valves flow characteristics in terms of pressure drop, flow velocity and risk of cavitation. In order to better set the mathematical model, DAFRAM, in collaboration with 3P Engineering, has provided advanced testing equipment to test valve prototypes. A first bench was specifically designed to work with water, therefore the valve Cv can be measured as per main international standards (i.e. IEC 60534). A second loop was developed to test valves with a gaseous flow in order to evaluate sound pressure level generated in operation. DAFRAM developed a proprietary calculation software for valve sizing and valve behaviour prediction; this special tool is based on CFD calculation data and on the mathematical model validation obtained through intensive loop testing sessions that allowed a refined setting of the virtual model for each trim configuration. |
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MUDANÇAS DE PROJETO
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