Buried installations Thrust blocks Most installations at ambient operating temperatures do not require thrust blocks. Consult Ameron for information regarding blocking of buried pipelines for your specific application. Live loads Bondstrand 2000 will carry H20 wheel loadings of at least 16,000 lb (7250 kg) per axle when properly bedded in compacted sand in stable soils and provided with at least 3 ft (1 m) of cover. Earth loads on buried pipe Nominal Maximum Earth Cover1 Pipe Size 100 psi 0.69 MPa 125 psi 0.86 MPa 150 psi 1.03 MPa ( in) (mm) ( ft) ( m) ( ft) ( m) ( ft) ( m) 1 25 30 9 30 9 30 9 11⁄2 40 30 9 30 9 30 9 22 50 30 9 30 9 30 9 32 80 30 9 30 9 30 9 42 100 30 9 30 9 30 9 62 150 30 9 24 7 23 7 8 200 23 7 22 6 21 6 10 250 23 7 21 6 19 5 12 300 23 7 21 6 18 5 14 350 23 7 21 6 17 5 16 400 23 7 20 6 16 5 1) Based on a 120 lb/ft3(1925 kg/m3) soil density and 1000 psi (6.9 MPa) modulus of soil reaction. 2) No-shave pipe. Span lengths Recommended maximum support spacings for Bondstrand Series 2000 pipe at various operating temperatures. Values based on 0.5-inch (12 mm) deflection at midspan for fluid specific gravity = 1.0. Field testing Bondstrand 2000 piping systems are designed for hydrostatic field testing at 150% of rated operating pressure. Pneumatic testing is not recommended. Nominal Pipe Size Continuous Spans (ft) Simple Spans (ft) ( in) (mm) 100 °F 150°F 200°F 250°F 100°F 150°F 200°F 250°F 1 25 11.7 11.1 10.3 9.3 7.3 7.4 6.7 6.2 11⁄2 40 13.8 13.0 12.1 11.0 9.2 8.7 8.1 7.3 24 50 14.3 13.5 12.6 11.4 9.5 9.0 8.4 7.6 34 80 16.2 15.4 14.3 12.9 10.8 10.2 9.5 8.6 44 100 18.5 17.5 16.3 14.7 12.3 11.7 10.9 9.8 64 150 20.7 19.6 18.2 16.5 13.8 13.1 12.1 11.0 8 200 22.9 21.7 20.2 18.2 15.3 14.5 13.5 12.2 10 250 24.3 23.0 21.4 19.3 16.2 15.3 14.3 12.9 12 300 25.5 24.1 22.4 20.3 17.0 16.1 15.0 13.5 14 350 26.5 25.0 23.3 21.1 17.6 16.7 15.5 14.0 16 400 28.2 26.7 24.9 22.5 18.9 17.8 16.6 15.0 1) Span recommendations include no provision for weights (fittings, valves, flanges, etc.) or thrusts (branches, turns, etc.). Fittings, valves, flanges and other appurtenances must be supported separately. 2) Span recommendations are calculated for a maximum long-term deflection of 1/2 inch to ensure good appearance and adequate drainage. 3) Continuous spans are defined as interior (not end) spans that are uniform in length and free from structural rotation at the supports. Simple spans are supported only at the ends and are hinged or free to rotate at the supports. 4) No-shave pipe. 6
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