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Parixit Industries Limited
706, Silver Oaks,
Near Mahalakshmi Cross Roads,
Paldi , Ahmedabad.

Ph No : 079 - 66318121(10 Lines) Fax No : 079 - 66318125
E-Mail : ho@parixit.com
 

Permanently Lubricated HDPE Telecom Ducts (PLB Ducts)

 
With the changing economic and business scenario, Parixit Industries Ltd. identified the needs of the telecom & IT infrastructure to upgrade from metal cables to optical fibres. With its rich experience in plastic pipe manufacturing & in-house technical strengths, the company has developed a product conforming to modern technology named Parixit COM-line. Parixit COM-Line is a product underlining strategic diversification of PIL with a commitment towards global telecom & IT infrastructure. Parixit COM-Line conduits are designed and engineered to house these sensitive nerves of Information technology i.e. optical fibres thus enabling information transfer across the globe.
 
PLB Telecom Ducts
PLB Telecome Ducts

COM-LINE – INSITE
MATERIAL:  Parixit Industries Ltd. manufactures permanently lubricated HPDE Telecom Ducts with the superior grade of High-Density Polyethylene materials. HDPE pipes manufactured will meet all the requirements of IS 4984-1995.

LUBRICATION: Apart from the normal HDPE pipes, Parixit Industries Ltd. has developed permanently lubricated HDPE Telecom Ducts. We use imported materials from internationally reputed ISO-9002 companies, manufacturing a special lubricated compound for production of HDPE pipes conveying optical fiber cables with extremely low friction.

Properties of lubricant
  • Is strongly locked into HDPE.
  • It has same physical/mechanical properties as HDPE except low Coefficient of Friction value which is less than 006.
  • Is evenly distributed around the bore and along the length of duct.
  • Does not react with water, hence it is possible to clean the duct by water stream in case of any obstruction/accident.
  • Has same frictional properties during life of the duct.

Salient Features
  1. Environment Stress Crack Resistance (ESCR)
  2. Impact Resistance
  3. Crush Resistance
  4. Coefficient of Friction
  5. Temperature Resistance & Range of Product use
  6. Ultraviolet (UV) protection

 
Product Applications
COM-line Ducts are suitable for installation in the field dirt trenches, under sidewalks, roads, within communication networks, between communication centers and between cities. They can also be used in branch networks between cells, distribution cabinets, poles, in walls and within subterranean networks of homes, allowing the insertion of communication cables-optical or copper, as well as TV/cable aluminum coaxial cables. Cables can be inserted in through the pipe by blowing, with an internal air-pressure up to eight bars.
Unique Properties

Parixit COM-Line’s exterior smooth, without grooves, projections, depressions or other defects detectable to the naked eye. There also are no spaces of cavities between the pipe’s two layers. The friction coefficient between the inside of the Parixit COM-line and the outside of the inserted communication cable does not exceed 0.0.6. The system used to achieve such a low friction coefficient is based on proven technology – coating with a layer of permanent lubrication material.

Availability
Underground communication networks utilize Polyethylene pipes of various outside diameters: 32, 40, 50 mm with varying thickness.

PIL offers various accessories & fittings used for laying com-line duct networks to facilitate optical fiber connectivity.

1. END PLUG : End plug with a bushing assembly used for sealing the duct end. Prevents dirt, water and dust from entering into the duct.

2. SIMPLE PLUG : Simple plug with Split bush assembly for sealing around able in duct installations. Simple installation around in place cables, seals the duct from moisture, dust and dirt going inside the Duct, ideal for Manholes.

Size(mm) Duct I.D. Cable O. D. range (mm)
32 25-28 9.5-12.5
40 32-35 11.5-16

3. PLASTIC COUPLER : Non metallic, high pressure rated (10 bar) air-tight Coupling for HDPE Duct which reduces blowing resistance and allows for greater freedom of use of state-of-the-art CABLE BLOWING TECHNOLOGIES under high pressure. Sizes available: 32, 40 & 50 mm.

4. C-SPANNER : This is the Metallic wrench for tightening the plastic Couplers and is supplied in pairs for tightening both the ends of the Couplers. Can be used for 40 mm & 32 mm Plastic Couplers.

5. DUCT CUTTER : HDPE DUCT Cutter with sharp Cutting Blade makes a fast, clean and burr-free cut in polyethylene, Ratchating handle provides for sure, steady cutting action.

6. DUCT CAP : These Caps are made of rubber, used for sealing the Duct ends before dispatch and during transportation, to prevent dirt, dust or any other particles from entering the duct. Sizes available : 40 m & 32 mm

7. COLLAPSIBLE STEEL REEL : Collapsible steel Reel used for mounting the Duct Coil at the Site for easy pulling of the Duct and ease of installation at the time of Duct Laying.

Size A B C
32 1800 900 320
40 2100 1000 400
50 2000 2000 500


Sr.
No.		 Test Test
Specifications		 Specific Value

Test on HDPE Raw Materials IS:7328:1992  

1

 Melt Flox Index IS: 2530-1963 0.2 to 1.1 gms per
10 min. at 1900 under 5 Kg load
2 Density IS: 7328:1992 940 to 958 Kg/m3 at 27 0C

3

 Test on Finished Duct Visual :    
      Inside & Outside Surface shall be smooth
  A) Appearance   50/42 mm 40/33 mm 32/26 mm
  B) Outer Diameter (mm)   50 + 0.5
40 + 0.4
32 + 0.3
  C) Wall Thickness (mm)   4.0 + 0.3
3.5 + 0.2
3.0 + 0.2
4 Reversion test IS: 4984-1995 3% (Max)
5 E.S.C.R. ASTM: D-1693 Samples shall no be crack or split
6 Internal Pressure Creep Rupture Test IS: 4984-1995 Duct shall not show swelling, leakage, 48 hrs., 80 0C
7 Crush Resistance Test TEC Spec. No. Deflection not Greater than 10% (with load G/CDS-08/01 on),Deflection not greater than 2% (After DEC. 1999 recovery)
8 Tensile Strength
& Elongation		 IS 14151
(Part-1)		 2O N/mm2 (Min.) 350% (Min.)
9 Impact Strength IS: 12235
(Part-9)-1986
& G/CDS-08/01		 There should be no crack or split
10 Internal Co-efficient of Friction TEC Spec. No G/CDS-08-01 or
Bellcore Method		 0.06 (Max.)
11 Oxidation Induction Test TEC Spec. No
G/CDS-08/01		 > 30 min.
 

 
QAP for PLB Duct
Sr. No Parameters Ref. Test Method Unit Typical Value / Requirement
1 Dimensions & Tolerances:      
a. Nominal Outside Diameter GR. No.G/CDS-08/02.Nov 04 mm 32 + 0.3,
40 + 0.4,
50 + 0.5
b. Wall Thickness GR. No.G/CDS-08/02.Nov 04 mm 3.0 ± 0.2,
3.5 ± 0.2,
4.0 ± 0.3
c. Thickness of inside lubrication GR. No.G/CDS-08/02.Nov 04 mm 10% of Pipe Thickness
d. Lubrication GR. No.G/CDS-08/02.Nov 04 mm Permanently lubricated for blowing of Optical Fiber Cable
e. Ovality GR. No.G/CDS-08/02.Nov 04 mm 0.8,
1.0,
1.4
f. Length GR. No.G/CDS-08/02.Nov 04 mm 1000 ± 100 or as per requirement
2 HDEP Row Material :      
a. Density IS : 2530 : 1963 G/CC 0.940 to 0.958 at 27° C
b. Melt Flow Rate IS : 7328 : 1992 Gm/10 min. 0.2 to 1.10 at 190° C under 5 Kg Load
3 Visual appearance:      
a. Surface Finish GR. No.G/CDS-08/02.Nov 04   Duct shall be smooth, clean, round and free from blister, shrink, holes, flaking & other defects
4 Performance Requirement :      
a. Heat Reversion IS : 4984 : 1995 % Max 3%
b. Hydrostatic Pressure Resistance Test IS : 4984 : 1995   Acceptance Test:
Duration: 48 hrs at 80°
Induced Stress 3.8 Mpa
Type Test :
Duration: 165 hrs at 80° Induced Stress: 3.5
c. Tensile Strength & Elongation IS : 14151
(part-1)		 N/mm2
%		 Min. 20 N/mm2
600%
d. ESCR ASTMD 1693   No Failure
e. Impact IS:12235 (part-9)   Striker Weight 10 kg, Duct Shall not crack or split
f. Crush Resistance GR. No.G/CDS-08/02.Nov 04 % Approx. 50 kg Load with load deflection
<10 after> recovery<2
g. Oxidation Induction Test GR. No.G/CDS-08/02.Nov 04 Min Time > 30
h. Internal Co-efficient of Friction GR. No.G/CDS-08/02.Nov 04   COF < 0.06
i. Minimum bending radius during storage GR. No.G/CDS-08/02.Nov 04 Mtrs. 1.25
j. Maximum pulling force GR. No.G/CDS-08/02.Nov 04 Kg 300
k. Ash Content of Finished Duct GR. No.G/CDS-08/02.Nov 04   0.3 (Max)
l. Fading of colors of Duct GR. No.G/CDS-08/02.Nov 04   No Discoloration
m. UV Stabilizer Content of Resin FT-IR Method % 0.15 (Min)
n. UV stabilizer Content of  Duct GR. No.G/CDS-08/02.Nov 04   Variation in tensile strength after aging shall not be more than 20%
o. Marking Identification GR. No.G/CDS-08/02.Nov 04   All pipes shall be marked in white color by hot embossed as per detail specified by the client, with length mark at every meter.
4 white strips applied on duct in the longitudinal direction. Color: Orange.
5 Duct Accessories      
A. Coupler
(Push fit) 		     
  Internal air pressure: GR.No.G/CDS 08/02. Nov.2004 kg./cm2 Internal air pressure 15kg./ cm 2
  Pulling force : GR.No.G/CDS 08/02. Nov.2004 Kgs. Pulling force:
for 32mm: 250 Kgs.
For 40mm: 320 Kgs.
For 50mm: 450 Kgs.
  Ageing Test :
In air circulating oven 		GR.No.G/CDS 08/02. Nov.2004   Ageing Test : In air circulating oven at 70 ± 2°C for 168 hrs.
b. Cable sealing plug GR.No.G/CDS-08/02.Nov.2004 1kg/cm2 1 kg / cm2 Air pressure for 30 minutes.
c. End Plug GR.No.G/CDS-08/02. Nov.2004 1 kg/cm2
Air pressure 		1 kg/cm2 Air pressure for 30 minutes.
 
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