Unique DV-ST UltraPure
Les vannes à membrane Unique DV-ST UltraPure Alfa Laval sont le choix évident pour les industries pharmaceutiques et biotechnologiques et d'autres processus focalisés sur l'hygiène. Les vannes compactes et légères comprennent une série de pièces de base comprenant des corps de vannes, des diaphragmes, des actionneurs et des poignées. Elles offrent une multitude de configurations possibles pour répondre précisément aux besoins de votre processus.
Corps de vanne de haute qualité, membranes éprouvées, actionneurs fiables
- Conception compacte, légère et hygiénique : corps de vannes de haute qualité et finitions de surface à faible teneur en Ra
- Risque contamination faible : corps de vanne documenté à faible teneur en ferrite pour un fonctionnement aseptique (forte teneur en alliage optionnel)
- Membrane fiable et durable – disponible en EPDM haute performance pour un fonctionnement continu à la vapeur à des températures allant jusqu'à 150 °C
- Actionneurs uniques flexibles en acier inoxydable, disponibles en versions faible et haute pression, couverts par une garantie de cinq ans
- Facilité d’installation, de validation et de qualification par Alfa Laval Q-doc, documentation complète et réseau de partenaires de service
La vanne à membrane Unique DV-ST UltraPure est disponible en fonctionnement pneumatique ou manuel. Pour un fonctionnement pneumatique, les vannes sont commandées par des actionneurs qui fonctionnent aux pressions du produit jusqu'à 10 bars, en fonction de la taille de la vanne, du matériau de la membrane (EPDM, PTFE/EPDM et M-PTFE) et de l'actionneur sélectionné. Il existe également un large choix d'unités de commande et d'indication faciles à monter.
Pour un fonctionnement manuel, les vannes sont commandées manuellement en tournant une poignée fixée à la tige. La poignée est dotée d'une protection standard contre la fermeture excessive permettant de prolonger la durée de vie de la membrane. Toutes les pièces en acier sont en acier inoxydable ou en matériau composite, en fonction du type de poignée.
Long-lasting valve service life
A maintenance-free stainless-steel diaphragm actuator with an autoclavable design, provides high corrosion resistance. This guarantees trouble-free operation and a long-lasting service life.
Actuators for tight spaces and high pressure
All-stainless-steel actuators for the Alfa Laval Unique DV-ST UltraPure diaphragm valves are available in two types; for standard and for high-pressure duties. Both are available as standard ATEX-certified diaphragm actuators in normally closed (NC), normally open (NO), or air/air activated (A/A) versions.
- The Alfa Laval Unique DV-ST UltraPure Slim (SS/SL) has the standard actuator, which handles normal product pressures up to 10 bar (∆=100%), depending on the valve size and diaphragm material. Slim and compact, this version minimizes dead legs between the valves and facilitates easy installation of the correct drain angle – even when space is tight. The SS/SL diaphragm actuator also comes with an optional stroke limiter for flow control.
- The Alfa Laval Unique DV-ST UltraPure High Pressure (SS/HP) has an actuator that handles high product pressures up to 10 bar (∆=0%), depending on the diaphragm material. This SS/HP version ensures safe, robust operation in systems with high pressures.
Unique DV-ST UltraPure valve technology
Premium as standard, the Unique DV-ST has valve bodies with low delta-ferrite content and defined sulphur content in all forged and block valves. Two-way valves, including the ferrules for clamp-end bodies, are forged from a single block. T- and tank-outlet valves are available and machined from a single block. The hygienic diaphragm valves are available in various configurations and materials.
Built around a weir-type design, the aseptic diaphragm valves are available with hard or soft compounds from PTFE with EPDM as the backing to a pure EPDM diaphragm. The diaphragm valve can be operated manually or with pneumatic actuators that come with a range of sensing and control equipment, including control units, position indicators, stroke limiters and valve positioners.
All diaphragms have cure dates and compound tracking available, meet FDA/USP classifications and are TSE/ADI-compliant.
Service and reliability
The diaphragm valves come with Alfa Laval Q-doc, a comprehensive documentation package that provides full transparency of the entire supply chain. This helps smooth purchasing and installation procedures and facilitates qualification, validation and change control procedures. Based on GDP, Q-doc covers every aspect of biotech and pharmaceutical equipment supply and provides customers with transparent and well-documented quality assurance of the sourced equipment. The Unique DV-ST UltraPure pharma diaphragm valve is engineered to meet the stringent requirements of the pharmaceutical industry, ensuring high purity and reliability.
Unique design adds value
We have used Unique DV-ST UltraPure valves for a long time, so we know that they are highly reliable and that the membranes are long-lasting.
Horst Neuland, Chief Plant Engineer at Bayer HealthCare in Wuppertal, Germany
Brochure: Alfa Laval Unique DV-ST UltraPure Diaphragm Valves
With its modular design and enhanced compatibility, Alfa Laval Unique DV-ST UltraPure diaphragm valve is constructed from a series of base parts that enables you to easily adapt the valve to a wide range of applications.
Fonctionnement
How does the Unique DV-ST UltraPure work
The standard Unique DV-ST UltraPure consists of a valve body, diaphragm, handle or actuator. In the manual version, a simple turn of the handle pushes the compressor down on the diaphragm, pressing it against the weir of the valve body and closing the valve. You can also use a pneumatic actuator to control the valve. The diaphragm actuator controls the piston’s axial movement, opening or closing the valve, depending on the actuator’s function. The standard all-stainless-steel actuators are available in two versions: the Unique DV-ST UltraPure Slim (SL) for standard duties and the Unique DV-ST UltraPure High Pressure (HP) for more demanding pressures. Both are available as normally closed (NC), normally open (NO), or air/air activated (A/A) valves, as well as in ATEX versions for use in potentially explosive atmospheres.
Ten top tips - Valves
Here are some tips and service videos to show how you keep your hygienic valves in tip top condition
Catalogue des produits
Le catalogue de produits d'équipement hygiénique d'Alfa Laval « À portée de main » comprend des fiches techniques, des courbes de performance, des liens vers des animations, des brochures et des listes de prix à des fins de commande.
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Portail CAO et fichiers PDF 3D
Téléchargez les modèles de produits aux formats de fichier CAO ainsi que les fichiers PDF 3D.
Animations
Visitez notre site dédié aux animations et regardez à l'intérieur des produits pour comprendre comment ils fonctionnent.