In order to understand all the differences between various pipe specifications, a more detailed review of the specifications should be conducted. Uni-Bell staff stands ready to discuss any specific questions you may have, but provides the following “quick reference” for your use:

Yes! It is necessary to know the diameters to be connected and to define whether the pipes to be connected together have a socket or otherwise. See similar questions...

PVC has an impressive record of long-term durability. When water utility managers and engineering firms were surveyed in a study sponsored by the American Water Works Association Research Foundation (AWWARF), they cited corrosion resistance, longevity and durability as their top reasons for choosing PVC. When these same water supply professionals were asked to rank PVC against the other common types of pressure pipes for life expectancy, PVC ranked first. [Source: Moser, A.P. See similar questions...

Yes, PVC pipe can withstand vacuum pressures. According to research conducted by Dr. R.K. Watkins at Utah State University, vacuum pressures cannot collapse an underground PVC pipe that is properly encased in a soil envelope and exposed to normal service temperatures. In fact, quick calculations show that even under conditions of elevated operating temperatures of 100oF, the pressure required to collapse most PVC pipe is greater than atmospheric. See similar questions...

Gasketed-joint PVC provides many advantages over other types of joining systems. The following is a brief summary: Watertight Joints: Gasketed-joint PVC water and sewer pipe joints are virtually leak-free, enabling them to easily pass post-installation air tests or leakage tests. Installation Considerations: Ease in installation is another advantage gasketed-joint PVC offers. See similar questions...

In order to accurately quantify the effects of UV radiation on PVC pipe, Uni-Bell members conducted a two-year study in the late 1970s at various outdoor locations in the United States and Canada. In this study, PVC pipe samples were placed on horizontal exposure racks and placed so that they received continual exposure to the sun. At various points throughout the study, tests to evaluate mechanical properties were performed on the portion of the pipes that received the maximum UV exposure. See similar questions...

Allowable depth of bury can be calculated based on the allowable deflection as described above. Uni-Bell member products have been installed successfully at depths of fifty feet or more. The following tables are provided as quick reference. See similar questions...

Lubricate the spigot end of the pipe, using the lubricant supplied. Be sure to cover the entire spigot end circumference WITH PARTICULAR ATTENTION PAID TO THE BEVELED END OF THE SPIGOT. Apply the coating with your hand, a cloth, a pad, a sponge or a glove. CAUTION: Do not lubricate the bell, especially the gaskets. After spigot end is lubricated, do not allow it to touch the bedding material. See similar questions...

ASTM F679: Standard Specification for Poly(Vinyl Chloride) (PVC) Large-Diameter Plastic Gravity Sewer Pipe and Fittings ASTM F789: Standard Specifications for Type PS-46 and Type PS-115 Poly(Vinyl Chloride) (PVC) Plastic Gravity Flow Sewer Pipe and Fittings ASTM F794: Standard Specification for Poly(Vinyl Chloride) (PVC) Profile Gravity Sewer Pipe and Fittings Based on Controlled Inside Diameter ASTM F949: Standard Specification for Poly(Vinyl Chloride) (PVC) Corrugated Sewer Pipe With a Smooth . See similar questions...

Granular fill is required. Pipe installation specification ASTM D 2321 will tell you how much compaction effort is needed for different soil types. See similar questions...

The appropriate conservative "n" value for minimum slope design of PVC sewer pipe is 0.009, as correctly justified by actual test data. The justification of this value is briefly described below. For many years it has been popular and convenient to use a single "n" value for all pipe materials. See similar questions...

No! PVC pipe is not heat tolerant. If your engine bay gets hot enough, the piping will melt releasing toxic fumes. To make things worse, those fumes are also corrosive to the aluminum found in your engine. A hissing or whistling noise from the intake at around 2,000rpm is normal. The stock intake had resonators to eliminate noises. Aftermarket intakes are, for all intensive purposes, a pipe with a filter on the end; no resonators. See similar questions...

Unfortunately, most plumbing stores don't carry HDPE - often times the store employees have never even heard of it. Usually it can only be found at large industrial plumbing supply places. You can also purchased pre-cut, plugged pieces of HDPE pipe from Pyrogear.net, which specializes in making mortars for fireworks. See similar questions...

Definitive Sealing: by welding the Valsir sealing cover (art. 342). Non-definitive sealing: solution A: by welding the Valsir sealing cap (art. 340). Solution B: by welding the Valsir collar (art. 347) then, using the Valsir free flange (art. .45), the corresponding set of Valsir bolts (art. 341), the Valsir sealing gasket (art. 343) and the Valsir blind flange (art. 346). See similar questions...

A Backfill is when the smile line "the white area on the tip of the nail" grows out and needs to be filled. We also fill in around the cuticle area during the backfill. See similar questions...

The only requirement is that you use approximately 36 inches of copper tubing at the inlet and outlet to act as a buffer between the tankless heater and your plastic tubing. See similar questions...

CPVC can be used on both hot and cold lines, while PVC is for cold water only. PVC is frequently used as a drainpipe. See similar questions...

Yes. ASTM D 2321 is the required pipe installation specification. Within the R/W there are additional requirements for compaction of the trench backfill material above the pipe. See similar questions...