Non standard customized jacket insulation corrugated pipe safety valve

Non standard customized jacket insulation corrugated pipe safety valve model BA42Y-16R, corrugated pipe sealing, fully open, 50CrVA spring pre tension set pressure, flange connection, jacket interface thread/flange, stainless steel valve body material, valve core and sealing surface welded with cobalt based alloy, mainly used in polyester, ethylene, heavy oil refining, urea fertilizer and other devices to prevent the crystallization or solidification of the medium