Description
Carbon steel spacers are available with a thermoplatic powder coating for extra corrosion protection. APS believes that fusion bonded coatings provide the most complete and effective corrosion protection available.
While casing spacers are available in a number of sizes, we are also capable of manufacturing spacers for specific customer requirements. The engineering staff has experience with:
Steel Band Casing Insulators are ideal for use with heavy pipe and long casing sections and are recommended for every 6 to 8 feet of pipeline. They should be utilized inside casing 2 to 3 times larger than the carrier pipe and are available in two widths: Model SI8 (8" wide) for carrier pipe 4" to 24"; and Model SI12 (12" wide) for carrier pipes 26" to 120”and larger.
The band is constructed of 14 gauge steel coated with 10-15 mils of thermoplastic powder coating, with a 90 mil. thick EPDM liner.
Properties
Property | Test Description | Results |
Adhesion to | ASTM D 1002 | >3000 psi |
Steel (Shear) | 10 mil (254 micron) glue line | >210 kg/cm2 |
Adhesion to Steel (Crosshatch) | DIN 53151 | GT 0-1, no lifting of coating |
Impact | Gardner 5/8" (1.6 cm) diameter tup 1/8" x 3" x 3" (0.32 cm x 7.6 cm x 7.6 cm) steel panel |
160 in-lbs1.8 kg•m |
Hardness | Shore D | 79 |
Abrasion | ASTM D 1004 | 0.0569 g loss |
Resistance | CS-10, 1000g weight, 5000 cycles | |
Electric Strength | ASTM D 119 | 950 v/mil37, 4 kv/mm |
Gloss | Gardner 20 Degree Specular Gardner 60 Degree Specular Gardner 85 Degree Specular |
20 58 78 |
Bendability | 3/8" (9.5 mm) coupon mandrel bend at 73˚ F (23˚ C) |
8 pipe diameters 7.2˚/dia length |
at 32˚ F (0˚ C) | 20 pipe diameters 2.9˚/dia length |
|
Salt Fog | ASTM B 117, 96 hours | No effect |
Specifications
Band and Risers
Band - 14 Gauge, hot rolled, pickled & oiled steelWodtj: 8” & 12”
Riser - 10 Gauge, hot rolled, pickled & oiled steel
Liner
EPDMThickness - .090" (2.29mm) min.
Hardness - Durometer "A" 85-90Dielectric
Strength - {1/8"(3.18mm) thick} 60,000 VPMWater Absorption - 1% max.Overlaps Edges
Bolts, Nuts and Washers
Electro Plated - 5/16" - 18” X 2" bolts,
5/16" hex nuts
5/16" washers SAE 2330
Runner/risers
1" or 2" wide glass filled polymer plastic
Sizes available
Length - 7" & 11" (17.8, 27.9 cm)
Effective Heights for 7" Length - 1", 11/2", 2", 21/2", 3, 31/2",4", 41/2", 5, 51/2" and 6"
Effective Heights for 11" Length - 1", 11/2"
Material Specifications
Rockwell Hardness (M) - (ASTM D785) - 101
Tensile Strength - (STM D638) - 27,000 psi
Flexural Strength - (ASTM D790) - 40,000 psi
Deflection Temp. @ 264 psi - (ASTM D648) - 478˚ F (248˚ C)
Deformation Under Load @ 72˚ F (22˚ C) - 3500 lb. Load, - (ASTM D648) - 1%
Finish
Thermoplastic Powder Coating Specifications
Durometer - Shore A2 (10 Sec.) (ASTM D1706-61T) - 50-55
Max. Temperature - 150˚ F (65˚ C)
Electrical Properties (ASTM D149-61)
Coating Thickness 10-15 mil.