Unique SSV DN125 og DN150

Unique Single Seat DN125 (5") and DN150 (6") valves are pneumatic seat valves in a hygienic and modular design offering a wide field of applications, for instance as a stop valve with two or three ports or as a change-over valve with three to five ports. These valves complement the Unique Single Valve family for large size installations in specific areas of your plant where size matters.

unique ssv dn125 dn150 right side 640x360

Versatile and reliable single seat valve

Alfa Laval Unique single seat valves (SSVs) are robust and reliable pneumatic seat valves that are supremely reliable and versatile.

Modularity provides cost-effective and nearly endless possibilities for purpose-built seat valves that meet high standards of hygiene. Configure the Unique SSV valve bodies, plugs and actuators to meet virtually any requirement. 

In the US and Canada the Unique 7000 corresponds to the Unique Single Seat Valve.

Superior valve process safety

The Unique SSV range is built on a proven modular platform used on more than a million valves in service worldwide. Pressed from a single stainless steel disc, the valve body is extremely strong and durable, thus ensuring production safety. The enhanced performance of the actuator makes operation safer and more efficient.


Greater valve durability

To ensure high sealing quality, the Unique SSV range features defined compression of the O-rings with metal-to-metal contact between plug and seat. This significantly reduces wear and extends valve service life. The standard Unique SSV is supplied with a semi-maintainable actuator that has a five-year warranty.

Low total cost of ownership

Thanks to its straightforward, reliable design, the Unique SSV range provides long service life, reduced product loss, greater product safety and more processing uptime. Few moving parts reduce service requirements and inventory costs. More effective CIP procedures with reduced cleaning cycles and, subsequently, the reduced use of cleaning fluids, water and utilities also contribute to the Unique SSV’s low total cost of ownership.


Product benefits

  • Cost-effective
  •  Nearly endless possibilities
  • The valve body is extremely strong and durable


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Hvordan det virker


The Alfa Laval Unique SSV range consists of one, two or three valve bodies, plug, sealing, actuator and clamp ring.

Operating principle

The Alfa Laval Unique SSV is an air-operated seat valve that is remotely operated by means of compressed air. The valve generally has two working ports for air supply in and for process air supply; for changeover valves, a third port is required.



  • Fully maintainable actuator
  • Product wetted seals in HNBR or FPM 
  • Valve sensing and control devices, incl ThinkTop, ThinkTop Basic and IndiTop
  • Fittings in accordance with required standard

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Alfa Laval Unique enkle seteventiler – vedlikeholdbar aktuator

Alfa Laval Unique enkle seteventiler – erstattbar aktuatorbøssing

Alfa Laval Unique enkle seteventiler – produktfuktede forseglinger

Alfa Laval Unique enkle seteventiler – erstatt produktfuktede forseglinger