Unique DV-ST UltraPure

Alfa Laval Unique DV-ST UltraPure diaphragm valves are the natural choice for pharma and biotech industries as well as other hygiene-focused processes. The compact and lightweight valves comprise a series of base parts, including valve bodies, diaphragms, actuators and handles. The choice gives you many configurations to meet your processes’ exact needs.

High-quality valve bodies, proven diaphragms, reliable actuators

Compact, lightweight, hygienic design – high-grade valve bodies and low Ra surface finishes
Reduced risk of contamination – fully documented, made for aseptic operations with a standard low-ferrite valve body (optional high alloy valve body)
Reliable, long-life diaphragm – available in high-performance EPDM for continuous steam operation at temperatures up to 150°C
Flexible, fits-all stainless steel actuators available in slim and high-pressure versions, backed by a five-year warranty
Easy installation, validation and qualification backed by Alfa Laval Q-doc comprehensive documentation package and service partner network

The Unique DV-ST UltraPure diaphragm valve is available for pneumatic or manual operation. For pneumatic operation, the valves are controlled by actuators that operate at product pressures of up to 10 bar, depending on the valve size, diaphragm material (EPDM, PTFE/EPDM and M-PTFE) and actuator selected. There is also a range of easy-to-mount indication and control units from which to choose.

For manual operation, the diaphragm valves are controlled by turning a handle attached to the stem. The handle features standard over-closure protection to help prolong diaphragm life. All steel parts are made of stainless steel or composite material, depending on the handle type.