Danfoss SVA-DH 300 angleway shut-off (stop) valve for industrial refrigeration, code 148B3777. Low-temperature steel body with butt-weld connections to ASME B 36.10M Schedule 40, nominal size 300 mm (12 in). Maximum working pressure 40 bar (580 psig); media temperature range -60 to 150 C (-76 to 302 F). Flow coefficient Kv 1610 m3/h (Cv 1867.6 gal/min). Delta Pressure High (SVA-DH) is the balanced design without restriction in the opening function; it opens at all differential pressures with limited torque. Both SVA-DL and SVA-DH have internal backseating, so the spindle seal can be replaced while the valve is still under pressure; the valve dismantles in line for inspection and repair. Supplied with handwheel. For HCFC, non-flammable HFC, R717 (ammonia) and R744 (CO2) industrial refrigeration systems. PED category IV.