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1890 / 1896 Series Threaded Safety Relief Valve
ASME Section VIII, UV /NB Certified: Air, Steam & Water
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Sizes ½" x 1" & ¾" x 1" (type 1890) and ½" x ¾" & ¾" x ¾" (type 1896M). Effective orifice areas of .077 (liquid) and .089 (vapor) square inches. Pressures from 15 psig to 800 psig for stainless steel (type 1890) and 15 psig to 300 psig for bronze (type 1896M). Temperature range from -400 °F to +750 °F. Materials of construction include stainless steel body and trim with carbon steel bonnet / cap (type 1890) and brass body and trim with bronze bonnet (type 1896M).
Applications: Air, steam, gas, vapor and liquid process applications (types 1890 and 1890/S4) and where service is compatible with brass and bronze (type 1896M). Also suitable for cryogenic applications.
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