ETF MT
ETF-MT is a designed piping system for Hot or Chilled water, Fuel Oil or Process Piping. ETF-MT pre-insulated pipe shall consist of the following components:
Carrier Pipe
ASTM A-106, ASTM A-53, Grade B, in schedule 40 or 80 as required by service. Other piping materials may be specified by the engineer.
Insulation
Polyurethane foam with the following minimum characteristics:
K Factor of .14, Density 2.8 PCF, closed cell content 90-95% in conformance with ASTM C-591 completely filling the annular space between carrier pipe and jacket.
Jacketing Material
High impact seamless polyvinyl chloride (PVC) class 12454 B compound conforming to ASTM 1784 Type 1, Grade 1. Jacket diameter and wall thickness as required by service. Other jackets such as HDPE, Spiral wound Aluminum or Spiral wound Galvanized may be specified by engineer.
Fittings
All fittings are contractor supplied, field welded and insulated using Energy Task Force fitting insulation kits. Fitting kits consist of 80 psi rated hard shell mitered PVC, urethane half shell insulation and pressure sensitive polyethylene tape. The use of PVC “covers” and liquid foam is NOT ACCEPTABLE. At engineer’s option, fittings may be pre-fabricated and pre-insulated by Energy Task Force.
Underground systems shall be buried in a trench of not less than 24 inches deeper than the top of the pipe jacket and not less than 18″ wider than the combined O.D. of all piping systems. Backfill should be tamped compactly in place. No rock shall be used in the first foot of backfill. Twenty-four (24) inches of jacket to grade of compacted fill will meet H-20 highway loadings.
Expansion/contraction will be accomplished utilizing standard Energy Task Force expansion loops and anchors.
Field service by a certified manufacturer’s representative is available.
Additional information is available in the following documents. Please download the document of your choice. All documents are in PDF format.