DBS – aperture tubeless (flat disk with a hole in the center) that are installed in the flanges, nominal pressure up to 4mpa.
The designation of the aperture at a reference pressure PN, MPa
Do to 0.6 St of 0.6 to 1.6 1.6 to St. St 2,5 1,6 to 4
300 DBS OF 0.6-300 DBS 1,6-300 DBS 4-300
350 DBS 0,6-350 DBS 1,6-350 DBS 4-350
400 DBS 0,6-400 DBS 1,6-400 DBS 4-400
450 DBS 0,6-450 DBS 1,6-450 DBS 4-450
500 DBS 0,6-500 DBS 1,6-500 DBS 4-500
600 DBS 0,6-600 DBS 1,6-600 DBS 4-600
700 DBS 0,6-700 DBS 1,6-700 DBS 4-700
800 DBS 0,6-800 DBS 1,6-800 BS 2,5-800 -
900 DBS OF 0.6-900 DBS 1,6-900 DBS 2,5-900 -
1000 DBS 0,6-1000 DBS 1,6-1000 DBS 2,5-1000 -
Options disc diaphragm DBS:
• orifice plates for pipes with an inner diameter greater than or equal to 50 mm (GOST 8.586.1, MI 2638);
• wear resistant (RD 50-411).