Unique Diaphragm Valve UltraPure

The Unique Diaphragm Valve UltraPure meets the requirements of most sterile and ultra-hygienic processes. These compact, lightweight valves are modular in design, which enables a wide range of purpose-built configurations.

Related Industries:

Biotech and Pharmaceuticals, Energy and Utilities, Food and beverage, Home and Personal Care

Unique Diaphragm Valve UltraPure Benefit

Superior hygienic design

The Alfa Laval Unique DV-ST UltraPure range consistently delivers documented, reliable, and contaminant-free aseptic performance.

High-quality valve bodies

Low delta-ferrite content valve bodies with specified sulphur content are standard for all forged and block valves.

• Cast bodies are made from high-precision investment casting with low delta-ferrite content.
• Two-way valves, including the ferrules for clamp end bodies, are made from a single piece of metal.
• T- and Tank-outlet valves are available either machined from block or forged and welded.

The forged and welded valve bodies offer an economical lightweight alternative, which makes easy installation and efficient steam sterilization possible.

Wide range of well proven diaphragms

Alfa Laval’s broad range of well documented pharmaceutical grade diaphragms meet the requirements of FDA and USP classifications as well as TSE/ADI declarations. A high performance S2 EPDM diaphragm for continuous steam operation at temperatures up to 150 °C extends the lifetime of valves used in more demanding process environments.

Innovative actuator design

Compact and lightweight, the actuators enable easy conversion of the control function (NC-Air/Air-NO). The unique design also permits adjustments of the actuator spring pressure to optimize the sealing function and lifetime of the diaphragm. Over-closure protection for all handles used for manual operation ensures a defined closure pressure against the diaphragm and prolongs diaphragm lifetime as well. All steel parts are made of stainless steel.

Aseptic diaphragm valves

Alfa Laval diaphragm valves are built around a weir-type system. This is available in a wide range of hard and soft compounds, extending from PTFE with either EPDM or silicone as backing plate to EPDM with a Kevlar core if extra mechanical stability is required.

Alfa Laval aseptic diaphragm valves can be operated by handles or pneumatic actuators. Such actuators can be fitted with an extensive range of control and monitoring equipment, including control units, position indicators, seal adjusters and stroke limiters.

Construction

The standard Unique DV-ST UltraPure consists of a valve body, diaphragm, handle or actuator. Optional automation and control units are available. With a full modular design, the Unique DV-ST UltraPure can be built to meet virtually any demand within the biotech and pharmaceutical industries.

Operating principle

The standard Unique DV-ST valve range is designed either for manual operation or for automatic operation.

Manual operation

For manual operation, the Unique DV-ST UltraPure is controlled by means of a handle. A simple turn of the handle will push the compressor downwards on the diaphragm, pressing the diaphragm against the weir of the valve body thereby closing the valve.

The handle can be made of full stainless steel, stainless steel composite, full composite or an epoxy version. All have a standard optical positioner and over closure protection*. As an option, the handle can incorporate a lockable function for security. The handle is fitted onto the valve by means of four screws and bolts.

*Except composite handle.

Automatic operation

The Unique DV-ST UltraPure can be controlled from remote location by means of compressed air using a pneumatic actuator. The actuator controls the axial movement of a piston, thereby opening or closing the valve depending on the actuator function.

The actuator is available in three standard versions: normally closed (NC), normally open (NO) and air/air activated (A/A). All versions have an integrated optical positioner. The actuator is fitted on to the valve by means of four screws and bolts.

Case Story – Saving time and money with the Unique Diaphragm Valve UltraPure – EN

Instruction manual – Unique DV-ST UltraPure – Pneumatic for valve sizes DN8-DN50- EN

Instruction manual – Unique DV-ST UltraPure – Manuel for valve sizes DN8 to DN80 – EN

Need a trusted aseptic valve for your cleanroom environment? Talk to us about the Unique UltraPure diaphragm valve from Alfa Laval.