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SS-Unitex: Burgmann Unitex mechanical seal

Description:
SS-Unitex: Cartridge seal, replacement of Burgmann Unitex cartridge seal

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SS-Unitex: Burmann Unitex cartridge mechanical seal
Structure Description:
Equivalent to Burmann Unitex seal
Single cartridge seal
Elastomer bellows
Unbalanced
Independent of direction of rotation
Rotating spring
Bellows and spring free from torsion
Metric and inch sizes available

Operating range:
Shaft diameter: dN = 25 … 75 mm (1" … 2.625")
Pressure: p1 = 12 bar (174 PSI)
Temperature: t = -20 °C … 140 °C (-4 °F … 284 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)
Axial movement: ± 0.5 mm

Materials
Seal face: Carbon graphite resin impregnated (B), Silicon carbide (Q1)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), EPDM (E)
Metal parts: CrNiMo steel (G), CrNiMo cast steel (G)


SS-Unitex Dimensions(Inches)
dN d2 d3min d3max d9 da a s l1 l2 l3 l4 t
1.000 1.512 1.634 2.000 2.362 4.134 2.440 0.520 2.579 1.614 0.965 0.906 1/4 NPT
1.125 1.669 1.750 2.050 2.362 4.134 2.441 0.520 2.677 1.634 1.043 0.906 1/4 NPT
1.250 1.772 1.890 2.250 2.559 4.331 2.638 0.520 2.736 1.654 1.083 0.906 1/4 NPT
1.375 1.933 2.000 2.420 2.677 4.213 2.756 0.520 2.854 1.732 1.122 1.024 1/4 NPT
1.500 2.020 2.146 2.625 2.874 4.843 2.950 0.579 2.854 1.732 1.122 1.024 1/4 NPT
1.750 2.354 2.480 2.812 3.110 5.118 3.230 0.559 3.012 1.752 1.260 1.024 1/4 NPT
1.875 2.433 2.559 2.940 3.228 5.118 3.307 0.559 3.071 1.772 1.299 1.024 1/4 NPT
2.000 2.551 2.677 3.190 3.346 5.827 3.430 0.579 3.169 1.850 1.319 1.102 3/8 NPT
2.125 2.795 2.875 3.437 3.740 5.512 3.820 0.689 3.287 1.850 1.437 1.102 3/8 NPT
2.250 2.874 2.992 3.560 3.780 6.181 3.858 0.689 3.287 1.850 1.437 1.102 3/8 NPT
2.375 3.012 3.110 3.590 3.937 6.181 4.020 0.689 3.366 1.850 1.516 1.102 3/8 NPT
2.500 3.209 3.287 3.800 4.173 6.693 4.252 0.689 3.465 1.909 1.555 1.102 3/8 NPT
2.625 3.268 3.374 3.937 4.252 6.378 4.331 0.689 3.465 1.909 1.555 1.102 3/8 NPT

SS-Unitex Dimensions(mm)
dN d2 d3min d3max d9 da a s l1 l2 l3 l4 t
25 38.4 41.5 51.0 60 105 62 13.2 65.5 41.0 24.5 23 1/4 NPT
28 42.4 44.5 52.0 60 105 62 13.2 68.0 41.5 26.5 23 1/4 NPT
30 42.4 45.5 56.0 63 105 67 13.2 68.0 41.5 26.5 23 1/4 NPT
33 45.0 48.0 57.0 65 110 67 13.2 69.5 42.0 27.5 23 1/4 NPT
35 49.1 50.8 61.5 68 107 70 13.2 72.5 44.0 28.5 26 1/4 NPT
38 51.3 54.5 66.0 73 123 75 14.7 72.5 44.0 28.5 26 1/4 NPT
40 54.3 57.5 68.0 75 123 77 14.7 75.5 44.5 31.0 26 1/4 NPT
43 56.3 59.5 70.5 78 133 80 14.7 76.5 44.5 32.0 26 1/4 NPT
45 59.8 63.0 73.0 79 130 82 14.2 76.5 44.5 32.0 26 1/4 NPT
48 61.8 65.0 75.0 82 130 84 14.2 78.0 45.0 33.0 26 1/4 NPT
50 64.8 68.0 78.0 85 148 87 14.7 80.5 47.0 33.5 28 3/8 NPT
53 66.8 70.0 87.0 95 148 97 17.5 81.5 47.0 34.5 28 3/8 NPT
55 71.0 73.0 83.0 90 148 92 17.5 83.5 47.0 36.5 28 3/8 NPT
60 76.5 79.0 91.0 100 157 102 17.5 85.5 47.0 38.5 28 3/8 NPT
65 83.0 85.7 98.5 108 162 110 17.5 88.0 48.5 39.5 28 3/8 NPT
70 88.0 94.0 108.0 116 178 118 17.5 92.0 48.5 43.5 28 3/8 NPT
75 93.4 98.4 118.0 125 190 127 17.5 93.5 49.0 44.5 28 3/8 NPT