SPECIFICATION

NO: PE-100 FITTINGS-002/11

  1. GENERAL REQUIREMENT:

Fittings under specifications shall conform to the standard specifications for thermoplastic gas pressure PE-100 pipes, and fittingd suitable for natural gas.

ISO- 1872/1 Polyethylene thermoplastic material designation.

ISO- 1977 Polyethylene pipe tolerances on outside diameters and wall thickness.

ISO- 4437 – P.E pipe for the supply of gaseous fuels specifications.

ISO- 6447--- Rubber seal---Joint Rings used for gas supply pipes and fittings specifications for material.

ISO – 1183--- Density of P.E Pipes.

ISO- 527------P.E pipe yield strength,Tensile Strength & Elongation for natural gas transportation.

Standard specifications of Polyethylene fittings for SDR-11, Polyethylene pipe.

  1. SPECIFIC REQUIREMENTS;

2.1The fittings should be moulded from P.E-100 orange/black resin, should be orange in colour and stablized the effects of UV radiation, having following properties.

Melt flow index ( 190 deg. C/50 n) 0.22-0.5 gm/10 min

Density=0.950 to 0.955 gm/cm3.

2.2 DIMENSION, TOLERANCE AND QUALITY:

(ALL FITTINGS IN METRIC SIZES)

Measurements shall be made in accordance with ISO-4437(1988/ISO 5)

2.2.1Quality assurance shall be in accordance with DIN-16963/DVGW G-477 for operation at a maximum gas pressure of 10 bar and above.

2.2.2The fitting should be suitable for butt fusion and electro fusion with poltethylene pipe(P.E-100) having meltflow index(MFI) range (190 deg C./50 N) BETWEEN 0.22 TO 0.50 GM/10 MIIN.

2.2.3All Electro fusion fittings must be supplied with single use data holder card and barcode system.

2.2.4Electro Fusion Fittins (Coupler,Tees,Caps,Bends,Elbow 7 Reducers)

The coupler internal bore should be larger than outer diameter pipe for slid over assembly to permit both new installation and repair work. The coupler should be capable of joining of plotethylene pipes (P.E-100) IN A SINGLOE OPERATION.The heating coil – circuit should be such that it should not get damaged during assembly leading to short- circuit of heating coil.

Fusion voltage 8 to 48 volts.Electro fusion have permanent fusion indicators.

2.2.5Spigotted Fittings (Couplers, Tees,Caps,Bends,Elbow 7 Reducers)

The spigotted fittings are to be jointed by either butt or electro fusion techniques to the polyethylene pipes. The spigotted fittings should conform to the normal pipe telerance dimension(NT) SPECIFICATION OF ISO-4437

  1. ISO-9001 REGISTRATION CERTIFICATE:

Bidder shall attach a valid ISO-9001 accreditation certificate of the manufacturers with his offer.

  1. PRINTED LITERATURE:

Original printed literature must accompany the Bid

  1. SALES TRACK (RECORD):

Five years sales track record should be submitted alogwith the bid with the names, e-mails and phone nos: of companies to the Fittings have been sold by the manufacturer.