Valve with regulating function

A device designed to regulate and control the flow through a valve in a heating and cooling system, the device comprising:

• a valve body (1), comprising an inlet side (5), an outlet side (6), and a knee (3), which is machined, for mounting a valve case (4), the inlet side (5) of the knee having a measuring nipple (2) for measuring a pressure on the inlet side and the outlet side (6) having a measuring nipple for measuring a pressure on the outlet side (6) to determine a drop of pressure in the valve body (1) between the inlet side (5) and the outlet side (6), the drop of pressure depending on different adjustments of a cone (9) relative to a valve seat (10) of a seat ring (19) and different adjustments of a veil (12);
• the seat ring (19) and the valve seat (10) are arranged in the valve body (1) and cooperate with the cone (9) to form a sealing device to seal the cone (9) against the valve body (1);
• the seat ring (19) is mounted in a first machining (32) and a second machining (33) of the valve body (1), the second machining (33) having a slightly larger diameter than the first machining (32);
• the cone (9) cooperating with the seat ring (19) has a cylindrical portion (46) with two deep slits (49) and two shallow slits (50) which facilitate regulation of the flow through the valve as the cone (9) is biased between a closed position and an open position;
• the cone (9) is mounted on a spindle (8) which is axially biased by a hand wheel (7), and a side of the cone (9) has a flange (39) which sealingly cooperates with the valve seat (10) of the seat ring (19) when the cone (9) is in the closed position;
• the veil (12) in the valve body (1) surrounds the valve seat (10) and the cone (9) and is turned in relation to a passage (13) in the valve body (1) to limit a maximum flow through the valve, when the cone (9) is in the open position, a lower edge (15) of the veil (12) is staircase-shaped, which provides a successive increase of flow through the passage (13) in the valve body (1) such that the flow through the passage (13) is variable and depends on a rotational position of the veil (12);
• the flow through the valve is controlled via a measurement of the drop of pressure in the valve body (1) between the inlet side (5) and the outlet side (6) of the valve;
• and
• the seat ring (19) has a sealing lip (22), which seals against an outer diameter (20) of the cone (9), a first sealing edge (40), which seals against a bottom (37) of the second machining (33), and a second sealing edge (44), which seals against the first machining (32), to form a sealing element and an upper portion of the seat ring (19) cooperates with the cone (9) and forms the valve seat (10).