R15120 - piping accessories
SECTION 15120 - PIPING ACCESSORIES PART 1 GENERAL 1.01
Drawings and general provisions of the contract, including General Conditions and Division 1 Specification Sections, apply to work of this Section.
Where contradictions occur between this Section and Division 1, the most stringent of the two shall apply.
Manufacturer's Data - Piping Accessories: Submit manufacturer's data on the following piping accessories: 1.
At Other Surfaces: Nickel or Chrome plate.
For Floor Sleeves: Where sleeves extend above floor surface, provide depth to cover sleeve.
Expansion Compensators, Two Inch and Smaller 1.
Manufacturers - Design Basis: Flexonics.
Stroke: 1/4" extension, 1-3/4" compression.
Model: HB-XXX-FFS for copper tube, all bronze.
Model: H-XXX-MMT for steel pipe with stainless steel bellows, steel shroud and fittings.
Design Pressure: 300 psig at 200 degrees F.
Manufacturers - Design Basis: Flexonics.
Spider: Steel for steel pipe, bronze for copper tubing.
Steel-Pipe Sleeves: Fabricate from Schedule 40 steel pipe. Remove burrs.
PVC Sleeves: Fabricate from Schedule 40 PVC pipe. Remove burrs.
Iron-Pipe Sleeves: Fabricate from service weight cast-iron pipe. Remove burrs.
Sheet-Metal Pipe Sleeves: Fabricate from galvanized sheet-metal, closed with lock-seam joints. 1.
For following pipe sizes, provide gauge indicated: a.
Install pipe sleeves where piping passes through walls, floors, ceilings, roofs and structural members, except soil pipe penetrations through concrete slab on grade.
Provide sleeves of adequate size, accurately centered on pipe runs, so that piping and insulation (if any) will have free movement in the sleeve.
Install length of sleeve equal to thickness of construction penetrated, except extend floor sleeves 0.25" above floor finish and where floor surface drains to a floor drain, extend floor sleeve 0.75" above floor finish.
Provide temporary support of sleeves during placement of concrete and other work around sleeves.
Provide temporary closure to prevent concrete and other materials from entering pipe sleeves.
Except as otherwise indicated, install steel or PVC pipe sleeves.
At interior partitions and ceilings, install sheet metal sleeves.
At exterior penetrations below grade, install iron pipe sleeves.
Where water seal or sound seal, but not fire seal, is needed, (foundation walls, slab on grade): Fiberglass backing and heavy bead of silicone caulking compound. Thunderline link-seal model LS.
Where sleeve pierces a fire separation wall or floor: Fire stop material.
Install escutcheon plates at pipe sleeves where piping is exposed to view in occupied spaces of the building, on the exterior, and elsewhere as indicated.
Compensators: Install where shown or where required because piping arrangement does not provide sufficient flexibility. 1.
Protect compensators from over-travel and over-stress during remaining installation and testing.
Flexible Connectors: Install at right angles to displacement. 1.
Install one end immediately adjacent to isolated equipment and anchor other end.
Guides: Install where shown and where required in accordance with expansion compensators published requirements. 1.
As a minimum, install one guide within four pipe diameters of compensator, and one guide 14 pipe diameters from first guide.
Clinical, Cosmetic and Investigational Dermatology open access to scientific and medical researchNovel topical therapy for mild-to-moderate This article was published in the following Dove Press journal: Clinical, Cosmetic and Investigational Dermatology15 September 2009Number of times this article has been viewed Abstract: The benefits of vitamin D derivatives for the treatment of chronic
NATIONAL AQUATIC NUISANCE SPECIES TASK FORCE PWSRCAC holds a voting seat on the Western Regional Panel of the National Aquatic Nuisance Species Task Force. The Panel is made up of representatives of state, local and British Columbia governments as well as natives and various interest and industry groups throughout the West Coast. Our agreement with the U.S. Fish & Wildlife Service includes f