PECM Issue 54 2022 | Page 68

HYDRAULICS & PNEUMATICS / MACHINING & MACHINERY

Drallim Rotary Selector Valve ( RSV ) solves challenging process applications

The RSV continues to collect new and interesting applications . It is a small bore , multiport , multibank rotary poppet valve system suitable for a variety of fluids operating from 1 -10 bar .
The latest configuration has been created as the heart of a piece of equipment designed to monitor the conductivity and dissolved oxygen levels in water samples . The intention is to be able to divert the single sample stream through two different Conductivity Flow Cells and Cation Columns / Filters , but also with the capability to be able to reverse the flows to enable backflushing of the two Cation Columns / Filters while the system is in operation .
The pictures show the valve in development with a complex flow diagram .
At the same time , we continue to receive orders for bigger more complex systems such as the emergency gas slam-shut system shown top right . Originally developed with ball valves which failed due to cross port leakage . The RSV solved an important safety issue and has proven to be a robust and reliable solution in this low temperature critical gas safety system .
Drallim offer full support to process equipment designers to solve complex problems with the elegant RSV solution which is highly adaptable and available in Brass and Stainless Steel , with Fluoro Elastomer Seals and PTFE or ACETAL Resin Stems , according to service duty .
Contact : Sales @ drallim . com | www . drallim . com
Peveril Group announces their new name !
https :// peverilmachinery . co . uk
Contact Lachlan Macdonald Direct on 0115 930 9068 Ext 10 or lachlan @ peverilmachinery . co . uk
68 PECM Issue 54