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Recommended Specification for PolyPipePW

HDPE Factory Mutual PE3408/PE3608 Pipe

INTRODUCTION

This Recommended Specification for Polyethylene Plastic Pipe was developed by PolyPipe

, to assist the end user in developing hisown specifications which will help to ensure that the products purchased will perform satisfactorily in the intended end-use.

It is incumbent upon the utility user to have a working familiarity with the applicable standard specifications and recommendations

listed below but not limited to:

ASTM D3035 Standard Specification of Polyethylene (PE) Plastic Pipe Based on Controlled Outside Diameter

ASTM D3261 Standard Specification for Butt Heat Fusion Polyethylene (PE) Plastic Fittings for Polyethylene (PE

Plastic Pipe and Tubing

ASTM D3350 Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

ASTM F714 Standard Specification for Polyethylene (PE) Plastic Pipe Based on Outside Diameter

ASTM F1055 Standard Specification for Electrofusion Type Polyethylene Fittings for Outside Diameter-Controlled

Polyethylene Pipe and Tubing

ASTM F2620 Standard Practice for Heat Fusion Joining of Polyethylene Pipe and FittingsAWWA C901 Standard for Polyethylene (PE) Pressure Pipe and Tubing, through 3 for Water Service

AWWA C906 Standard for Polyethylene (PE) Pressure Pipe and Fittings, 4 through 63 for Water Service

FM 1613 Factory Mutual Approval Standard for Polyethylene (PE) Pipe and Fittings for Underground Fire

Protection

PPI TR-3 Policies and Procedures for Developing Recommended Hydrostatic Design Stresses for Thermoplastic

Design Stresses for Thermoplastic Pipe Materials

PPI TR-4 Recommended Hydrostatic Strengths and Design Stresses for Thermoplastics Pipe and Fitting

Compounds

Although it is difficult to incorporate in a specification, one of the most important considerations in purchasing quality materials for a

polyethylene piping system is the selection of a quality vendor. Such a vendor will have an understanding of the necessary Quality

Control tests and the capabilities to perform them and will also be able to provide records showing that a Quality Assurance program

such as ISO 9001:2008, is in effect that utilizes these testing facilities.

In qualifying a Supplier the user should consider the following:

1. A demonstrated commitment to the market as evidenced by facilities investment and products offered;

2. A good reputation for product quality and service based on other user comments;

3. Adequate in-plant inspection and Quality Assurance testing, either in the Supplier's own facilities or in a qualified

independent laboratory;

4. Evidence that the Supplier has a qualified joining procedure in accordance with the recommendations of PPI TR-33 Generic

Fusion Procedures.

5. The ability to provide sound technical support for its products.

The user should ensure that, in addition to clearly defined material purchase specifications, the Manufacturer has also established

procedures for qualification testing and acceptance testing of PE pipe and tubing and certification requirements for the material

purchased for use in their systems.

The following model specification is furnished to assist the user of polyethylene pipe in the procurement of materials meeting the

minimum federal standards as well as some additional recommended requirements. In the event local standards are more stringent

appropriate modifications should be made to this model specification.

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1.0 MATERIALS

1.1 The pipe shall be high-density polyethylene with a standard thermoplastic material designation code o

PE3408/PE3608 and having a cell classification of 345464C per ASTM D3350.

1.2 Materials used to manufacture pipe shall be listed under the Manufacturers name in the Plastics Pipe Institute (PPI

TR-4, PPI Listing of Hydrostatic Design Basis (HDB), Strength Design Basis (SDB), Pressure Design Basis (PDBand Minimum Required Strength (MRS) Ratings for Thermoplastic Piping Materials or Pipe. The Manufacture

shall supply a product with a standard grade HDB rating of 1600 psi (minimum) at 73F and 800 psi (minimum) for

140F. Upon request, the Manufacturer shall supply certification that the materials used to manufacture the pipe

and fittings meet the above requirements.

1.3 The materials shall meet the following nominal physical property requirements:

PROPERTY TEST METHOD(1)

NOMINAL VALUE

Material Designation PPI/ASTM PE3408/PE3608

Cell Classification D3350 345464C

Density, Natural D1505 0.946 gm/cc

Density, Black D1505 0.955 gm/cc

Melt Index (190C/2.16 kg) D1238 0.07 gm/10 min

Flow Rate (190C/21.6 kg) D1238 8.5 gm/10 min

Tensile Strength @ Yield D638 3,200 psi

Ultimate Elongation D638 >800%

Flexural Modulus, 2% Secant D790 136,000 psi

Environmental Stress Crack Resistance (ESCR)

F0, Condition C D1693 >10,000 hrs.

PENT F1473 >100 hrs.

Brittleness Temperature D746

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3.0 JOINING

3.1 HEAT FUSION

3.1.1 Pipe shall be joined by thermal fusion per the Manufacturers recommended procedures.

3.1.2 Upon request, the Manufacturer shall provide fusion training by authorized personnel or an authorized

representative. The Contractor shall be responsible for ensuring that personnel have received prope

training per the Manufacturers recommended procedure. Records of training shall be maintained by theContractor and should not exceed 12 months from date of construction.

3.2 OTHER METHODS OF JOINING

3.2.1 Polyethylene pipe may be joined together or to other materials through the use of electrofusion fittings,

flange adapters with back-up rings, mechanical couplings designed for connecting polyethylene pipe to

itself or to another material, or MJ adapters. The Manufacturer of the joining device shall be consulted fo

proper installation procedures.

4.0 MARKING

4.1 Pipe shall be permanently marked in accordance with all applicable standards per this specification and include the

appropriate FM logo in the printline. Marking shall be legible and shall remain legible under normal handling andinstallation practices.

5.0

WORKMANSHIP

5.1 Pipe shall be homogenous throughout, and free of visible cracks, holes, foreign inclusions, blisters, dents or other

injurious defects. The pipe shall be as uniform as commercially practicable in color, opacity, density and other

physical properties.

6.0 TESTING

6.1 The Contractor shall be responsible for field set-up and performance of the fusion equipment and the fusion

procedure used by the operator. Upon request, the Contractor shall verify the fusion quality by making and testing

per the Manufacturers recommended qualification procedure. The Contractor shall be responsible for the necessaryadjustments to the set-up, equipment, operation and fusion procedure. Fusions that fail the qualification procedure

shall be remade.

6.2 Hydrostatic testing shall be conducted in accordance with the Manufacturers recommended testing procedures.

7.0 THIRD PARTY CERTIFICATION

7.1 The performance requirements of the pipe and fittings shall be as required by FM. The Manufacturer shall comply

with FM PC150, PC200 or PC267 by certifying in writing to the design engineer and marking the pipe with the

appropriate FM logo.

8.0 APPROVED MANUFACTURERS

8.1 The pipe shall be PolyPipePW.