The downstream pressure signal moves a set of bellows against an adjustable spring. Valve movement is proportional to downstream pressure. The greater the flow, the larger the offset.
LRV2 -  For normal liquid applications

Features & Benefits
- Extremely robust
- Easy to adjust
- Easy to maintain

Many industrial plants produce high-pressure steam for process work.  In many of these plants, there is excess steam capacity available that can be utilized for other purposes, such as space heating, water heating, etc.  Process steam is often generated at a higher pressure than can be used for the other purposes.  Whatever the needs for lower pressure steam, a pressure reducing station will be required.

A pressure reducing station is more than just a reducing valve fed off a steam main.  A properly designed and installed pressure reducing station takes into consideration velocity, good piping practices, and safety.