Project: BASF SE TDI EUROPE - Ludwigshafen

Contractor: FLUOR B.V. Haarlem

Advanced Valve Solutions Delivery:

• PERSTA Gate & Check Valves.

BASF SE – Ludwigshafen (DE) will build a single-train 300,000 metric tons per year production plant for TDI (toluene diisocyanate) and expand additional plants for its precursors at its site in Ludwigshafen. These include the construction of a new hydrogen chloride recycling plant as well as the expansion of plants for nitric acid, chlorine and synthesis gas. June 2013, AVS has been awarded the order for the supply of over more than 100 items - PERSTA Gate & Check Valves. Planned delivery of the valves: January 2014.

AVS is pleased to work together with Fluor BV and look forward to a successful project.

Compact Ball Valves

Ball Valves are one of the most commonly used valve types, and can be found in use in a wide variety of industries. A simple 90º operation and the possibility to have uninterrupted flow pass through the assembly make this valve a popular choice for flow control applications.
To fully understand the construction of a ball valve, it is key to analyze the different functions and components of the valve. The main components of any ball valve include a valve body, two seats, stem and handle, a bonnet, and of course the ball itself.
(download the paper below)

In many applications the use of a combination of a stop valve and a check valve is used. This results in two pressure containing parts, two potential leak paths and the added issues of space and especially weight.

Based on globe valves, stop-check valves have been developed in the past. By mounting a loose disk on the spindle, the disk can function as a check valve. The main disadvantage is that these valves in most cases have not been designed as stop check valves. A second disadvantage is the fact that the pressure drop over this type of valves is high, due to...

(download the paper below)

Two shift operation power plants

Power stations that were originally designed for base load applications are now increasingly
being asked to operate on a two shift, stop start regime; this is more commonly known in the
industry as dual shifting. The multiple start/stops that these stations are now experiencing is in
some instances causing an increase of operational issues due to the to the constantly changing
process parameters. For example dual shift stations will experience additional thermal stress in
the headers, drums, high temperature piping, valves plus the auxiliary equipment leading to
additional wear and tear of their systems and component parts. This is due to the more frequent
use of the plant at severe service conditions. The consequences of the change in plant operation
cannot be ignored. If the plant is not operated correctly or more importantly modified properly to
handle these changes the lifetime of the components within the plant will decrease enormously.
The changing operational requirements of the plant require that the steam coolers, desuperheater
valves, drains, feed water control valves, main steam isolation valves and the turbine
quick closing valves are reviewed. These critical pieces of equipment...
(download the paper below)

Two shift operation power plants

Power stations that were originally designed for base load applications are now increasingly
being asked to operate on a two shift, stop start regime; this is more commonly known in the
industry as dual shifting. The multiple start/stops that these stations are now experiencing is in
some instances causing an increase of operational issues due to the to the constantly changing
process parameters. For example dual shift stations will experience additional thermal stress in
the headers, drums, high temperature piping, valves plus the auxiliary equipment leading to
additional wear and tear of their systems and component parts. This is due to the more frequent
use of the plant at severe service conditions. The consequences of the change in plant operation
cannot be ignored. If the plant is not operated correctly or more importantly modified properly to
handle these changes the lifetime of the components within the plant will...
(download the paper below)

Two shift operation power plants

Power stations that were originally designed for “base load” applications are now increasingly being asked to operate on a two shift, stop/start regime; this is more commonly known in the industry as dual shifting. The multiple start/stops that these stations are now experiencing is in some instances causing an increase of operational issues due to the to the constantly changing process parameters. For example dual shift stations will experience additional thermal stress in the headers, drums, high temperature piping, valves plus the auxiliary equipment leading to additional wear and tear of their systems and component parts. This is due to the more frequent use of the plant at severe service conditions. The consequences of the change in plant operation cannot be ignored. If the plant is not operated correctly or more importantly modified properly to handle these changes the lifetime of the components within the plant will decrease enormously. The changing operational requirements of the plant require that the steam coolers, desuperheater valves, drains, feed water control valves, main steam isolation valves and the turbine quick closing valves are reviewed. These critical pieces of equipment have to be specifically designed to take the new...
(download the paper below)

Power stations that were originally designed for base load applications are now increasingly being
asked to operate on a two shift, stop/start regime; this is more commonly known in the industry as
dual shifting. The multiple start/stops that these stations are now experiencing is in some instances
causing an increase of operational issues due to the to the constantly changing process
parameters. For example dual shift stations will experience additional thermal stress in the
headers, drums, high temperature piping, valves plus the auxiliary equipment leading to additional
wear and tear of their systems and component parts. This is due to the more frequent use of the
plant at severe service conditions. The consequences of the change in plant operation...
This paper highlights the issue of attemporators in dual shifting power stations.

(download the paper below)

Power stations that were originally designed for base load applications are now increasingly being
asked to operate on a two shift, stop/start regime; this is more commonly known in the industry as
dual shifting. The multiple start/stops that these stations are now experiencing is in some instances
causing an increase of operational issues due to the to the constantly changing process
parameters. For example dual shift stations will experience additional thermal stress in the
headers, drums, high temperature piping, valves plus the auxiliary equipment leading to additional
wear and tear of their systems and component parts. This is due to the more frequent use of the
plant at severe service conditions. The consequences of the change in plant operation...
This paper highlights the issue of attemporators in dual shifting power stations.

(download the full techinical paper below and our flyer about how Marchwood CCGT station saved £200,000 per year with replacement desuperheaters)

Compact Ball Valves

Ball Valves are one of the most commonly used valve types, and can be found in use in a wide variety of industries. A simple 90º operation and the possibility to have uninterrupted flow pass through the assembly make this valve a popular choice for flow control applications.
To fully understand the construction of a ball valve, it is key to analyze the different functions and components of the valve. The main components of any ball valve include a valve body, two seats, stem and handle, a bonnet, and of course the ball itself.
(download the paper below)

Two shift operation power plants

Power stations that were originally designed for “base load” applications are now increasingly being asked to operate on a two shift, stop/start regime; this is more commonly known in the industry as dual shifting. The multiple start/stops that these stations are now experiencing is in some instances causing an increase of operational issues due to the to the constantly changing process parameters. For example dual shift stations will experience additional thermal stress in the headers, drums, high temperature piping, valves plus the auxiliary equipment leading to additional wear and tear of their systems and component parts. This is due to the more frequent use of the plant at severe service conditions. The consequences of the change in plant operation cannot be ignored. If the plant is not operated correctly or more importantly modified properly to handle these changes the lifetime of the components within the plant will decrease enormously. The changing operational requirements of the plant require that the steam coolers, desuperheater valves, drains, feed water control valves, main steam isolation valves and the turbine quick closing valves are reviewed. These critical pieces of equipment have to be specifically designed to take the new...
(download the paper below)