Viat Instruments

Pressure Relief Devices

FOR NORTH AND SOUTH AMERICAN MARKETS  



Features:
Gas bleed system standard in all models.
All stainless steel hardware.
Springs made out of oil hardened and tempered spring steel wire to provide uniform loading and to prevent fatigue failure.
Computerized  on-line test certificate for each individual unit




Pressure relief device for Oil filled transformer   
6 inch- 305 series  
PDF Catalog   
   
FOR WORLD MARKETS  
Features
Gas bleed system standard in all models.
All stainless steel hardware
Teflon® coated stainless steel operating disk with deep drawn spring locator
Computerized  on-line test certificate for each individual unit
Pressure relief device for Oil filled transformer  
6 inch- 305 series  
PDF Catalog  
Features
Rugged LM6 cast Aluminum body
Schneider® make switch with IP67 protection
Variable option for two switches of 2NO 1NC or 1NO 1NC each
Fits easily on Viat 305 Pressure relief device
Direction cover for 6 inch PRD 305 series
PDF Catalog
 
 
Features:
 Available in pressure setting between 20 to 70kPa (3-10 PSI)
Electric signal switch optional
Stainless steel directional cover and gas bleed screw in all models
Individual serial number and test certificate with exact value of operating pressure
 
 
 
 
Pressure relief device for oil filled transformers
Type T50 (2") and T80 (3")
PDF Catalog