SVA-DL and SVA-DH are angleway shut-off valves designed to meet all industrial refrigeration application requirements.SVA-DL (Delta pressure Low) is designed with a restriction in the opening function. High differential pressure can be applied from the side port and reduced pressure can be applied from bottom port. SVADL is a twostep valve for pressure relief.SVA-DH (Delta pressure High) is designed without restriction in the opening function. As a result of its balanced design this valve is able to open at all differential pressures with limited torque. The angleway shut-off valves are carefully designed to give favorable flow conditions. Easy to dismantle for inspection and repair.Both SVA-DL & SVA-DH shut-off valves have internal back seating enabling the spindle seal to be replaced with the valve still under pressure.The valves are designed to give favorable flow characteristics and are easy to dismantle for servicing. The valve cone is designed to ensure perfect closing.