BSV1 Series Bellows-Sealed Valves feature stainless steel valve bodies, with an working pressure up to 1000 psig (69.0 bar) and an operating temperature range from -20°F to 842°F (-28°C to 450°C). This series adopts hydraulically formed bellows, delivering excellent sealing performance and long service life. The bellows valve core assemblies are replaceable, with conical, regulating and spherical core options available.