What is hydrostatic design basis?

“The term hydrostatic design basis (HDB) category refers to the estimated long-term strength in the circumferential, or hoop, direction of a pipe or tube.”

What is PE4710?

High-performance polyethylene is an improved polyethylene compound for pressure pipe that is designated PE4710. Compared to conventional pressure piping materials such as PE3408, several important performance characteristics are significantly enhanced.

Is PE4710 a HDPE?

PE 4710 pipe is produced from the highest rated HDPE pipe materials. This is a long lasting, fusible pipe. PE4710 pipe is a pressure rated product and listed under the Plastics Pipe Institutes (PPI) Technical Report Four (TR-4 @www.plasticpipe.org > PPI Publications > Technical Reports).

What is PE3608?

Pipe made of high density polyethylene — such as PE3408 and PE3608 — is used mainly in industrial and municipal applications such as water mains or sewer and storm drains. This kind of pipe must bear up under both high pressure from within and the weight of the earth from above when buried deeply in a trench.

What is HDB in pipes?

Hydrostatic design basis (HDB) can be defined as the estimated long-term strength of a plastic pipe material in the hoop or circumferential direction of the pipe when subjected to certain end-use conditions.

What is hydrostatic design stress?

ASTM D2837 defines Hydrostatic Design Stress (HDS) as “the estimated maximum tensile stress in a wall of pipe in the circumferential orientation due to internal hydrostatic pressure that can be applied continuously with a high degree of certainty that failure of the pipe will not occur”.

What is the OD of 8 HDPE?

HDPE, ANSI DR 11.0, 200 psi, Pipe Iron Pipe Size (in) Datasheet

Pipe Size (NPS) Outside Diameter (IPS) Average Inside Diameter (in)
3 3.500 2.826
4 4.500 3.633
6 6.625 5.349
8 8.625 6.963

What is the water pressure in Singapore?

If you are staying in a HDB apartment or condominium, your incoming water pressure is usually around 8 to 12 lit/min. If you have private housing, your incoming water pressure is around 12 to 18 lit/min.