600000 Piece/Pieces per Month plastic drain fittings
Packaging & Delivery
carboard carton according to different types and sizes tee fitting
20 days after comfirmed the order
ABS and PVC Standards
TYPE PIPE FITTING
Schedule 40 DWV Foam Core Pipe
Schedule 40 DWV Fittings
Schedule 40 DWV Pipe
ASTM D1785 & ASTM D2665
Schedule 40 DWV Foam Core Pipe
Schedule 40 DWV Fittings
System: PVC Schedule 40 Solid Wall Pipe and PVC DWV Fitting System
Scope:This specification covers PVC Schedule 40 solid wall pipe and PVC DWV fittings used in sanitary drain,
waste, and vent (DWV), sewer, and storm drainage applications. This system is intended for use in
non-pressure applications where the operating temperature will not exceed 140°F.
Specification: Pipe and fittings shall be manufactured from virgin rigid PVC (polyvinyl chloride) vinyl compounds with
a Cell Class of 12454 as identified in ASTM D 1784.
PVC Schedule 40 pipe shall be Iron Pipe Size (IPS) conforming to ASTM D 1785 and D 2665.
Injection molded PVC DWV fittings shall conform to ASTM D 2665. Fabricated PVC DWV fittings shall
conform to ASTM F 1866. Pipe and fittings shall be manufactured as a system and be the product of one
manufacturer. All systems shall utilize a separate waste and vent system. Pipe and fittings shall
conform to NSF International Standard 14.
Installation shall comply with the latest installation instructions published by National Pipe and Foundry
and shall conform to all applicable plumbing, building, and fire code requirements. Buried pipe shall be
installed in accordance with ASTM D 2321 and ASTM F 1668. Solvent cement joints shall be made in
a two step process with primer conforming to ASTM F 656 and solvent cement conforming to ASTM
D 2564. The system shall be protected from chemical agents, fire stopping materials, thread sealant,
plasticized vinyl products, or other aggressive chemical agents not compatible with PVC compounds.
Systems shall be hydrostatically tested after installation. WARNING! Never test with or transport/store
compressed air or gas in PVC pipe or fittings.
ASTM D 1784 Rigid Vinyl Compounds
ASTM D 1785 PVC Plastic Pipe, Schedule 40
ASTM D 2665 PVC Drain, Waste, and Vent Pipe & Fittings
ASTM D 2564 Solvent Cements for PVC Pipe and Fittings
ASTM D 2321 Underground Installation of Thermoplastic Pipe (non-pressure applications)
ASTM F 656 Primers for PVC Pipe and Fittings
ASTM F 1668 Procedures for Buried Plastic Pipe
ASTM F 1866 Fabricated PVC DWV Fittings
*Note: Latest revision of each standard applies.
Support Spacing For ABS, PVC and CPVC Pipe
Adequate support for any piping system is a matter of great importance. In practice, support spacings are a function of pipe size, operating temperatures, the location of heavy valves or fittings, and the mechanical properties of the pipe material. To ensure the satisfactory operation of a DWV or pressure piping system, the location and type of hangers should be carefully
considered. The principles of design for metallic piping systems are generally also applicable to DWV or pressure piping
systems, but with some notable areas where special consideration should be exercised. Hangers should not compress, distort,
cut or abrade the piping. All piping should be supported with an approved hanger at intervals sufficiently close to maintain correct pipe alignment and to prevent sagging or grade reversal. Pipe should also be supported at all branch ends and at all changes of direction. Support trap arms as close as possible to the trap. In keeping with good plumbing practices, support and brace all closet
bends and fasten closet flanges.
(1) Concentrated loads (ie: Valves and other appurtenances) should be supported directly so as to eliminate high stress concentrations. Should this be impractical, then the pipe must be supported immediately adjacent to the load.
(2) In systems where large fluctuations in temperature occur, allowances must be made for expansion and contraction of the piping system. Since changes in direction in the system are usually sufficient to allow for expansion and contraction, hangers must be placed so as not to restrict this movement.
(3) Since plastic pipe expands or contracts approximately five times more than steel, hangers should not restrict this movement. When using a clamp-type hanger, the hanger should not force the pipe and fittings into position.
(4) Hangers should provide as much bearing surface as possible. To prevent damage to the pipe, file smooth any sharp edges or burrs on the hangers or supports.
(5) Plastic piping systems must not be placed alongside steam or other high temperature pipe lines or other high temperature objects.
(6) Support spacing for horizontal piping systems must be determined by the maximum operating temperature the system will encounter. The piping should be supported on uniform centers with supports that do not restrict the axial movement.
(7) For vertical lines, it is recommended that an engineer design the vertical supports according to the vertical load involved.
(8) Changes in direction should be supported as close as practical to the fitting to avoid introducing excessive torsional stresses into the system. Please see the associated chart showing the recommended support spacing according to size, schedule, and operating temperatures. These spacings apply to continuous spans of uninsulated lines, with no concentrated loads, conveying liquids with specific gravities of up to 1.00.
1 .We are one of the largest PVC/ABS DWV manufacturers in China.
2. We have skilled engineers and excellent after-sale service network . 3. Free samples and fast delivery. 4 .Cupc certificate is available both in Canada and United States.
Name: Hans Han
Email:sales7 at dbrfitting.com Website: www.dbrfitting.com