Nahaufnahme von Alfa Laval hygienischen Ventilen in einer Produktionsanlage

Alfa Laval Unique Sampling Valve

Euroflow GmbH Alfa Laval Master Distributor in central and southern Germany

Alfa Laval Unique Sampling Valve

Alfa Laval Unique Sampling Valve

The Alfa Laval Unique Sampling Valve (Single Seat) is a hygienic sampling valve engineered for safe, contamination-free sample extraction in sterile process lines. Built around a single-piece stainless steel body and a stretchable membrane plug, it delivers the accuracy, repeatability, and reliability that quality teams need from a representative sampling valve.

Part of the Alfa Laval Unique sampling range, the valve is available with an ergonomic manual handle or a pneumatic actuator — both fully interchangeable on the same body. Three sizes (Type 4, Type 10, and Type 25) and a choice of Tank weld, collared tube weld, or Tri-Clamp body cover virtually any hygienic tie-in. A modular upgrade kit converts the unit to the Unique Sampling Valve (Double Seat) when process risk requirements evolve.

The valve is specified across dairy, food, beverage, brewery, pharmaceutical, and personal care production. In southern Germany, it is supplied and technically supported by Euroflow GmbH, Alfa Laval Master Distributor for postal codes 66–99 and 07–08.

Get in touch

Documentation

Product leaflet

The Alfa Laval Unique Sampling Valve (Single Seat) is a hygienic sampling valve built for processes where every sample must reflect the true product condition inside the line or tank. Its design centres on a single-piece stainless steel body, a stem-mounted elastomer membrane that acts as a stretchable plug, and an interchangeable head — either a manual handle or a pneumatic actuator — that gives operators precise control over each sampling event.

Hygienic design and single-piece body construction

The product-wetted body is machined from 1.4404 (316L) stainless steel and supplied with 3.1 material certification on product-wetted parts. Other steel components on the actuator are 1.4301 (304) and 1.4404 (316L). Product-wetted elastomers are available in EPDM or silicone, allowing the membrane material to be matched to the medium, cleaning chemistry, and temperature profile. The single-piece body eliminates crevices in the product zone, supporting reliable cleaning and reducing entrapment risk.

Sterilisation, CIP and SIP capability for an aseptic sampling valve

The valve operates across a temperature range of 1°C to 130°C and tolerates a maximum dry steam sterilisation temperature of 121°C at 2 bar. Maximum inlet pressure is 600 kPa (6 bar). An optional pressure relief valve on the outlet supports steam sterilisation routines, making the unit a practical choice as an aseptic sampling valve in lines that rely on CIP and SIP for product safety. The membrane sealing principle protects the sample path during cleaning and sterilisation cycles.

Representative sampling mechanics — the membrane as a stretchable plug

When closed, the elastomer membrane on the actuator stem is stretched against the body seat to form a tight, hygienic seal. On actuation, the membrane lifts and product flows through a defined sample path, then re-seals on closing. This action gives a representative sample of the bulk medium without exposing the process to the external environment.

Modular upgrade path to the Unique Sampling Valve (Double Seat)

The single-seat unit is fully part of the Unique Sampling Valve platform. Operators standardising on one sampling architecture can later upgrade to the Unique Sampling Valve (Double Seat) by fitting an upgrade kit and replacing the handle or actuator — protecting the investment in the installed valve body, tie-ins, and operator training.

Manual or pneumatic operation and connection flexibility

Handles and pneumatic actuators are interchangeable on the same body, so manual sampling points can be automated later without changing the process connection. Bodies are available for Tank welding, collared tube welding, or Tri-Clamp, with connection sizes covering ISO 25, ISO 38, ISO 51, ISO 63.5 and DIN 25, DIN 40, DIN 50, DIN 65. Sizes Type 4, Type 10, and Type 25 cover small-bore sampling through to larger hygienic lines.

In the Euroflow sales territory across Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia, and Saxony, technical selection and sizing for this hygienic sampling valve is supported directly by Euroflow GmbH as Alfa Laval Master Distributor.

Technical Details

  • Product-wetted steel parts: 1.4404 (316L) with 3.1 certification
  • Other steel parts (actuator): 1.4301 (304) and 1.4404 (316L)
  • Product-wetted elastomers: EPDM or silicone membrane
  • Sealing principle: stretchable membrane plug on actuator stem
  • Maximum inlet pressure: 600 kPa (6 bar)
  • Operating temperature range: 1°C to 130°C
  • Maximum dry steam sterilisation temperature: 121°C at 2 bar
  • Available sizes: Type 4, Type 10, Type 25
  • ISO connection sizes: ISO 25, ISO 38, ISO 51, ISO 63.5
  • DIN connection sizes: DIN 25, DIN 40, DIN 50, DIN 65
  • Valve body options: Tank (weld), collared tube (weld), Tri-Clamp
  • Operation: interchangeable manual handle or pneumatic actuator
  • Optional pressure relief valve on outlet for steam sterilisation
  • Upgrade path: kit to convert to Unique Sampling Valve (Double Seat)

Options and Configurations

  • Manual handle for operator-controlled sampling
  • Pneumatic actuator for automatic sampling
  • Valve body: Tank, supplied for welding into a vessel wall
  • Valve body: collared tube, supplied for welding into pipework
  • Valve body: Tri-Clamp connection for clamp-mounted installations
  • Membrane material: EPDM for general hygienic duties
  • Membrane material: silicone for higher-temperature or alternative chemistry duties
  • Sizes: Type 4, Type 10, and Type 25
  • ISO connection sizes: ISO 25, ISO 38, ISO 51, and ISO 63.5
  • DIN connection sizes: DIN 25, DIN 40, DIN 50, and DIN 65
  • Optional pressure relief valve on the outlet for steam sterilisation
  • Upgrade kit to convert the unit into the Alfa Laval Unique Sampling Valve (Double Seat)
  • 3.1 material certification on product-wetted parts for documented traceability of this sanitary single seat valve

Dairy processing

Beverage processing

Explore all applications

Food processing

Beer production
Tanks and stainless steel tubes and pumps in an industrial setting.

Industries

The Alfa Laval Unique Sampling Valve (Single Seat) serves operators across dairy processing, food and beverage manufacturing, beer production, and pharmaceutical production, where a hygienic sampling valve is essential to product safety and release decisions. Euroflow GmbH supplies and supports the valve as Alfa Laval Master Distributor for southern Germany, covering postal codes 66–99 and 07–08 across Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia, and Saxony. Talk to Euroflow for selection, sizing, and integration into existing CIP and SIP lines.

Advanced Sensing and Control for Process Optimisation

Integrating Alfa Laval ThinkTop V50 and V70 units into your valve clusters delivers maximum uptime and significant resource savings. Their 360° LED status indication gives operators real-time flow path monitoring from any angle.

  • Resource savings: Pulse and Burst SeatClean reduce CIP fluid consumption by up to 95%.
  • Fast setup: Auto-Setup and Live-Setup cut commissioning time by up to 90%.
  • Durable: IP69K rated, -10°C to +60°C, Nylon PA12 and 1.4301 stainless steel.
  • Easy integration: Supports 24VDC PNP, AS-Interface, and IO-Link. MTTF of 224 years.
  • Universal fit: Directly interchangeable with ThinkTop Classic; fits all Alfa Laval hygienic actuators.

Ready to optimise your CIP return and process flows?

Our products
Alfa Laval Sensing and Control Think Top V50 and V70
Marcus Schmidt, Euroflow GmbH owner

Are you interested?

As an Alfa Laval Master Distributor in Southern Germany, Euroflow GmbH delivers premium components and expert solutions for the dairy, brewing, beverage, food, cosmetics and pharmaceutical industries. Operating across postal codes 66-99 and 07-08, we serve Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia and Saxony with dedicated technical expertise.

As your competent partner for system integration, tank construction and end-user solutions, we provide comprehensive support in selecting optimal equipment for viscous product handling and cleaning processes. Our focus on pumps, valves, heat exchangers and tank equipment ensures reliable process performance.

Contact us today for a personalised quote and discover how our technical expertise can optimise your operations.

Get a quote

FAQ

Euroflow serves customers across southern and central Germany — covering postal code areas 66–99 and 07–08, spanning Baden-Württemberg, Bavaria, Saarland, Rhineland-Palatinate, Hesse, Thuringia, and Saxony. As an Alfa Laval Master Distributor for tank manufacturers, plant engineers, system suppliers, and end customers, we provide expert support in selecting and designing systems for viscous product handling and cleaning applications.

Yes. The valve tolerates dry steam sterilisation up to 121°C at 2 bar and operates between 1°C and 130°C. An optional pressure relief valve on the outlet supports controlled steam sterilisation cycles in aseptic lines.

Yes. The Unique Sampling Valve platform is modular: the single-seat unit can be converted to the Alfa Laval Unique Sampling Valve (Double Seat) by fitting an upgrade kit and replacing the handle or pneumatic actuator. The installed body and process connection are retained.

Selection depends on line size, sample volume, and the connection standard used on the vessel or pipework. The valve is offered in Type 4, Type 10, and Type 25, with Tank weld, collared tube weld, or Tri-Clamp bodies and ISO or DIN connection sizes. Euroflow provides technical selection and sizing support as Alfa Laval Master Distributor for southern Germany.

Any questions?

If we still haven't answered your questions, you can contact us below and we will get back to you as soon as possible.

Call us

+49 721 / 470 518 – 10

Send a message

 info@euroflow.de