4200 Series
ASME NB Certified: Steam & Air
Sizes 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.