Best Availability - Change-over valves

Solutions for high plant availability

  • Change-over valve / safety valve combination
  • Flow-optimized designs for minimum inlet pressure drop
  • Delivery times synchronized with the safety valves

  • CE_Europa_schwarz
  • UKCA_Grossbritanien_schwarz
  • EAC_Russland_schwarz
LESER Change-over Valve

Technical data Change-over valves

Pressure rating

PN16 - PN250 | Class 150 - Class 1500

-273 - +450 °C | -459 - +842 °F
Connections DIN EN 1092

DN 25 to DN 400
Connections ASME B16.5

NPS 1 to NPS 16

Body material

Carbon steel , Stainless steel

Shell Deutschland Oil GmbH
SEICO Heizungen GmbH
Shell Deutschland Oil GmbH
SEICO Heizungen GmbH
Case study

Change-over valves for continuous plant availability


Industry / Application

Chemical industry/Hydrogen peroxide

LESER products

API and Best Availability


Continuous optimization of the plant

The challenge
The ARKEMA company operates its plant in non-stop mode, which requires high availability of the connected supply equipment, such as tanks with compressed air. To ensure high availability of the plant, ARKEMA opted for the new change-over valves from LESER .

Why did the customer choose LESER products ?
For ARKEMA, quality and reliability are the most important decision criteria when choosing Safetys and Change-over valves .

More efficient plant operation with LESER change-over valves

The LESER change-over valve of the type n 330 and 320 offers the solution for safe and efficient plant availability 24 / 7. It is easy to operate and, in combination with Safetys valves , provides permanent protection for a permanently running plant.

Flow tests and computational fluid dynamics (CFD) simulations were used to develop a flow-optimized design with minimal pressure loss.
Each configuration of these change-over valves has a specific resistance coefficient that allows reliable and precise calculation of the inlet pressure drop .
Due to their durable design, these new change-over valves are maintenance-free and tested through endurance trials. They are the economical solution because a suitable selection can be made for every application .

About the customer
ARKEMA is one of the world's leading manufacturers of hydrogen peroxide. Hydrogen peroxide (H2O2) is used in various concentrations as an example for the sterilization of food packaging. The Shanghai plant was established in 2000 and expanded in 2008.

Valve Types

Choose the product type that suits you

Best Availability - Change-over valves
Download Catalogues

Change Over Valve Catalog

Download the Change Over Valve Catalog now.

Download Catalogue
Contact LESER Teaser

Contact LESER

Send a message to LESER

Calculation of safety valves with LESER-Valvestar

Sizing and selection

Sizing and selection of your LESER Safety valve with VALVESTAR® - The Sizing Program


You may also like