Danfoss SVA-S 50 function module (complete top part) for the SVL Flexline SVA-S / SVA-L shut-off and regulating valve range, code 148B5729. The function module is the complete field-serviceable operating top part — bonnet, spindle, renewable seat and cone, gaskets and bolts — that mounts onto the matching 50 mm (2 in) SVA-S/SVA-L valve housing to make up or repair a complete valve. Supplied with handwheel. Maximum working pressure 52 bar (754 psig); media temperature range -60 to 150 C (-76 to 302 F). The seat and cone are designed to close tightly and withstand high system pulsation and vibration, and the top part can be dismantled and serviced in line. For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) industrial refrigeration systems.