1900 Series - Maintenance Manual

X. Parts Inspection (Contd.)TTTN minN minBN minBBCC90 0LLType 1 Type 2 Type 3CFigure 20a: D - H Orifice DiscsD - U Orifice Discs (UM)Figure 20b:J - U Orifice DiscsFigure 20c: V & W Orifice Discs(Std. & UM)Figure 20: Disc Inspection AreasDiscTypeTable 3a: Minimum Dimensions afterMachining of the Disc Seat (Standard)OrificeT min.N min.in. mm in. mmD-2 .182 4.62 .015 0.38E-2 .182 4.62 .015 0.38Table 3b: Minimum Dimensions afterMachining of the Disc Seat (Universal Media)DiscTypeOrificeT min.N min.in. mm in. mmD .177 4.50 .012 0.30E .177 4.50 .012 0.30Type 1F .182 4.62 .015 0.38G .182 4.62 .015 0.38H .343 8.71 .018 0.46J .369 9.37 .020 0.51K .432 10.97 .048 1.22F .177 4.50 .012 0.30G .172 4.37 .015 0.38H .345 8.76 .020 0.51J .408 10.36 .028 0.71K .480 12.19 .036 0.91L .467 11.86 .048 1.22M .467 11.86 .048 1.22Type 1L .533 13.54 .053 1.35M .545 13.84 .060 1.52Type 2Type 3N .495 12.57 .048 1.22P .620 15.75 .078 1.98Q .620 15.75 .078 1.98R .620 15.75 .078 1.98T-4 .832 21.13 .078 1.98U .833 21.16 .078 1.98V 1.230 31.24 .120 3.05W 1.855 47.12 .168 4.27N .582 14.78 .064 1.63P .718 18.24 .075 1.91Q .750 19.05 .102 2.59R .772 19.61 .123 3.12T 1.016 25.81 .159 4.04U 1.022 25.96 .172 4.37Type 3 V 1.261 32.03 .213 5.41W 1.891 48.03 .269 6.8324 | Dresser Consolidated ®