4 02/18 9 R 3" MIN. 3" MIN. OVERLAP 1. CARRIER PIPE: Black Steel as specified. 2. INITIAL INSULATION: Calcium Silicate or Foamglas® to provide high temperature insulation and reduce temperature to below limits of foam. 3. SECONDARY INSULATION: Polyurethane Foam to provide highly efficient insulation and support for carrier pipe along entire length. 4. OUTSIDE CASING: Fiberglass to protect the insulation from ground water and underground loads. 5. FIBERGLASS WRAP: Provides water tight seal at field joints. 6. FIELD JOINT HALF SHELLS: Provide the same efficient insulation and casing along the entire pipe run. 7. FIELD JOINT SEAL: Wraparound heat-shrinkable sleeve. 8. AIR TUBE: Copper tube for testing field joints. 9. WELD 1 2 3 4 6 7 5 8 PRE-INSULATED SUPER WELD-TITE PIPE R 1.72 523 1.13 1.50 1.50 1.19 1.13 1.69 1,570 1,822 2,266 1,252 925 615 (LBS./20 FT.) 1.81 1.25 1.56 1.25 FOAM 2.05 165 210 335 248 WEIGHT 144 CALCIUM SILICATE 12.38 22.50 24.50 8.38 8.38 O.D. CASING 20.50 18.50 16.50 12.38 9.38 8.38 8.38 5 5.56 12 14 16 10 8 6 12.75 14.00 16.00 10.75 8.63 6.63 CARRIER 2 2 1/2 4 3 1 1/2 SIZE NOM. PIPE 2.38 2.88 4.50 3.50 1.90 O.D. 1.50 .185 .250 .250 .250 .250 .250 .185 2.50 2.50 2.50 2.50 2.00 1.50 .185 .185 .185 .185 .185 CASING 1.00 1.00 1.00 1.00 or FOAMGLAS 1.00 THICKNESS NOTE: All dimensions are in inches unless noted.