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705.2.2 Mechanical Joints and Compression Joints
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Mechanical joints for cast-iron pipe and
fittings shall be of the elastomeric compression type or
mechanical joint couplings. Compression type joints
with an elastomeric gasket for cast-iron hub and spigot
pipe shall comply with ASTM C564 and be tested in
accordance with ASTM C1563. Hub and spigot shall
be clean and free of dirt, mud, sand, and foreign materials.
Cut pipe shall be free from sharp edges. Fold and
insert gasket into hub. Lubricate the joint following
manufacturer's instructions. Insert spigot into hub until
the spigot end of the pipe bottom out in the hub. Use
the same procedure for the installation of fittings.
A mechanical joint shielded coupling type for hubless cast-iron pipe and fittings shall have a metallic shield in accordance with ASTM A1056, ASTM C1277, ASTM C1540, or CISPI 310. The elastomeric gasket shall comply with ASTM C564. Hubless cast-iron pipe and fittings shall be clean and free of dirt, mud, sand, and foreign materials. Cut pipe shall be free from sharp edges. Gasket shall be placed on the end of the pipe or fitting and the stainless steel shield and clamp assembly on the end of the other pipe or fitting. Pipe or fittings shall be seated against the center stop inside the elastomeric sleeve. Slide the stainless steel shield and clamp assembly into position centered over the gasket and tighten. Bands shall be tightened using an approved calibrated torque wrench specifically set by the manufacturer of the couplings.
A mechanical joint shielded coupling type for hubless cast-iron pipe and fittings shall have a metallic shield in accordance with ASTM A1056, ASTM C1277, ASTM C1540, or CISPI 310. The elastomeric gasket shall comply with ASTM C564. Hubless cast-iron pipe and fittings shall be clean and free of dirt, mud, sand, and foreign materials. Cut pipe shall be free from sharp edges. Gasket shall be placed on the end of the pipe or fitting and the stainless steel shield and clamp assembly on the end of the other pipe or fitting. Pipe or fittings shall be seated against the center stop inside the elastomeric sleeve. Slide the stainless steel shield and clamp assembly into position centered over the gasket and tighten. Bands shall be tightened using an approved calibrated torque wrench specifically set by the manufacturer of the couplings.
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