High Density Polyethylene (HDPE) Pipes

Pipe

The number one characteristic that sets HDPE apart from other pipe types is that it can be made to be flexible. This quality opens HDPE pipe up to a different world of applications than rigid pipe. Another quality of HDPE is that it can melted and re-solidified a limitless number of times without losing any of its favorable qualities. For this reason, most HDPE pressure pipe is made to be 'butt welded'. This is where the ends of two sections of pipe are melted and then pushed and held together, forming a single pipe.

Fittings

Fittings include Bend (Butt & Socket Weld), Tee (Butt & Socket Weld), Long Neck Pipe End, Short Neck Pipe End, Blind Flange, Reducer and Hose Nipple - Flange End

Marking and uniformity: Pipe and fittings made from ASTRAL ^® HP HDPE compounds shall be clearly marked with the manufacturer's name ot trademark, material designation applicable ASTM Standard.

BASIC USE

ASTRAL CORZAN. HP HDPE pipe and fittings are intended for use in both pressure and drain applications in general chemical manufacturing plants, pulp and paper plants, waste water treatment plants, metal treating/electroplating plants, water purification plants, and food processing plants where excellent resistance to corrosion from a wide range of chemicals, acids, and bases at temperatures upto 200 °F is required.

SYSTEM DESIGN

System design shall be in accordance with standard industry practice for thermoplastic industrial piping systems and shall take into consideration such factors as pressure and flow requirements, friction loss, operating temperatures, support spacing, anchoring, bracing and thrust blocking, temperature correction factors, joining methods, chemical environment, collapse and loading, and thermal expansion and contraction.

BENEFITS

1. Corrosion resistance. Does not r ust, rotor cor rode.
2. Leak tight. Heat-fused joints create a homogenous, monolithic system. The fusion joint is stronger than the pipe.
3. Maintains optimum flow rates. Does not tuberculate, has a high resistance to scale or biological build-up.
4. Excellent water hammer characteristics. Designed to withstand surge events.
5. High strain allowance. Virtually eliminates breakage due to freezing pipes.
6. Additional cost savings are achieved by lower instance of repairs.
7. With no exfiltration or infiltration, potable water losses and groundwater nuisance treatment costs encountered in traditional piping systems are eliminated.
8. Material of choice for trenchless technology. Used in directional boring, plowing, river crossings, pipe bursting and sliplining
9. Fewer fittings due to pipe flexibility. Allowable bending radius of 20 to 25 times outside diameter of pipe
10. Lighter equipment required for handling and installation than with metallic materials
11. Eliminates the need for thr ust blocking. Heat fused joints are fully restrained
12. Light weight and longer lengths allow for significant savings in labor and equipment