Steam Safety Valves

Farris Steam Safety Valves

4200 Series 
ASME NB Certified: Steam & Air
4200Sizes 1-1/4″ x 1-1/2 ” to 6 ” x 8 “. Actual orifice areas from 0.316 to 11.39 square inches. Pressures from 15 psig to 1000 psig. Temperature range from -20 °F to +1000 °F. Steel body and open bonnet and stainless steel trim.

Double blow down ring design to meet the reseating standards of Section I of the ASME Code. Temperature equalizing disc for maximum seat tightness. Full nozzle design for ease of maintenance.

Applications: Steam boilers.

4200 Series Catalogue – Click to download.

6400/6600 Series

ASME NB Certified: Steam & Air
6400Sizes 1″ x 2″ to 4″ x 6″. Effective orifice areas from 0.11 to 6.38 square inches. Pressures from 15 psig to 1500 psig. Temperature range from -20 °F to +1000 °F. Steel body and open bonnet and stainless steel trim.

Double blow down ring design to meet the reseating standards of Section I of the ASME Code. Temperature equalizing disc for maximum seat tightness. Available with exposed spring (6400) or closed bonnet (6600). Full nozzle design for ease of maintenance.

Applications: Steam boilers (Type 6400) and organic fluid vaporizers or hot water boilers (Type 6600).

6400 6600 Series Catalogue – Click to download.