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SCHROEDAHL

SCHROEDAHL - Pump Protection Valves


Pump protection valves are required to ensure the minimum flow rate of a pump at all times. This protects the pump against overheating, cavitation and finally, destruction. If the flow through the pump falls below a certain level the bypass system opens and the fluid will be recirculated providing the required minimum flow for the pump.

The SCHROEDAHL- pump protection valves work in a modulating way. Should the discaharge increase through the following processes, then the amount of fluid recirculated by the bypass is automatically reduced- and vice versa. This increases the efficiency of the entire system and optimises the economy in the low-load operation.

The pump protection works entirely over the inside valve technology. 
The volume by which the process decreases is measured independent of the pressure – the amount returned over the bypass is adapted automatically.



Pump Protection Valves - Overview

SCHROEDAHL Type TDL

• Max. PN #600 / PN 100
• Forged Body
• Check Valve in the Bypass
• Venturi Ring Design

SCHROEDAHL Type TDM

• Max. PN #2500 / PN 400
• Forged Body
• High Pressure Let Down
• Bypass Device (up to 5 Stages)

SCHROEDAHL Type SUL

• Max. PN #300 / PN 63/64
• Cast Body
• Economic and Sufficient Design
 

SCHROEDAHL Type TDC

• Max. PN #2500 / PN 400
• Forged Body
• Descaling Application
 

SCHROEDAHL Type MRM

• Max. PN #4500 / PN 640
• Forged Body
• High Pressure Let Down
• Bypass Device (up to 7 Stages)

 


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