PIPE AND ACCESSORIES Clause Samples
PIPE AND ACCESSORIES. A. Ductile Iron Pipe for Gravity Sewer and Force Main
1. General
a. Ductile Iron Pipe (DIP) shall meet the requirements of AWWA C-151 and as required herein.
b. Ductile Iron Sewer Pipe must be easily recognized by brownish red bells and spigots, as well as, exterior stenciling of the words “For Sewer Only”.
PIPE AND ACCESSORIES. A. General
1. Provide erosion control measures as required. Erosion control measures including seeding and mulching shall be designed, installed and maintained in accordance with the N.C. Department of Environment and Natural Resources, Land Quality Section’s “Erosion and Sediment Control Planning and Design Manual”. The Developer/Engineer is responsible for securing all required permits.
2. Pipe installation shall meet the following general guidelines:
a. Handle pipe and accessories in accordance with manufacturer’s recommendations. Take particular care not to damage pipe coatings.
b. Carefully inspect pipe immediately prior to laying. Do not use defective pipe. Replace pipe damaged during construction.
▇. ▇▇▇ pipe to design grade and alignment.
d. Provide proper equipment for lowering pipe into trench.
e. Provide tight closure pipe ends when work is not in progress.
f. Keep pipe interior free of foreign materials.
g. Do not lay pipe in water or when the trench or weather conditions are unsuitable for the work.
h. Clean bell and spigots before joining. Make joints and lubricate gasket in accordance with pipe manufacturer recommendation.
i. Block fittings with concrete or restrained joints.
B. Trenching for Underground Pipe Installation
PIPE AND ACCESSORIES. A. General
1. Clean and flush pipe system of foreign matter prior to testing.
2. Notify the Town a minimum of 48 hours prior to testing.
3. Perform tests in the presence of the Town.
4. Length of line to be tested at one time shall be subject to approval of the Town.
5. Pipe sections shall not be accepted and placed into service until specified test limits have been met.
6. Repair defects in the pipe system. Make repairs to the same standard as specified for the pipe system.
7. Retest repaired sections until acceptance.
8. Repair visible leaks regardless of the test results.
B. Pressure Mains
1. The Town shall approve the source, quality, and method of disposal of water to be used in test procedures.
2. Obtain Town’s permission 48 hours prior to filling or flushing of pipe system with water from Town’s water system. Town shall operate valves connected to the existing water system. Keep pipe interior clean during construction to minimize the amount of water required for flushing. Where large quantities of water may be required for flushing, Town reserves the right to require that flushing be done at periods of low demand.
3. Pressure test in accordance with AWWA C600 for ductile iron pipe and AWWA C605 and M23 for PVC pipe and the following.
4. Make pressure tests between valves. Furnish suitable test plugs where line ends in “free flow.”
5. Provide air vents at the high points in the line section to be tested for releasing of air during filling. Service corporation stops may be used for air vent when located at a high point. Leave corporation stops in place after testing and note locations on As-Constructed Drawings.
6. Allow concrete blocking to reach design strength prior to pressure testing.
7. Force main shall be completely filled with water, all air expelled from the pipe, and the discharge end of the pipeline shall be plugged and adequately blocked before hydrostatic test begins.
8. Upon completing a section of pipe between valves, test pipe by maintaining for a two hour period a hydrostatic pressure equal to 1.5 times the system working pressure or 150 psi, whichever is greater.
9. Test pressure shall not vary by more than +/- 5 psi for the duration of the test.
10. No length of line shall be accepted if the leakage is greater than that determined by the following formula based on the appropriate test pressure: • L = Allowable leakage per 1,000 feet of pipe in gallons per hour • D = Nominal diameter of the pipe in inches • 100 psi: L = D x 0.07 • 15...
PIPE AND ACCESSORIES. A. General
1. Provide erosion control measures as required. Erosion control measures including seeding and mulching shall be designed, installed and maintained in accordance with the N.C. Department of Environment and Natural Resources, Land Quality Section’s “Erosion and Sediment Control Planning and Design Manual”. The Developer/Engineer is responsible for securing all required permits.
2. Pipe installation shall meet the following general guidelines:
a. Lay pipe in the presence of a representative of the Town, unless specifically approved otherwise.
b. Handle pipe and accessories in accordance with manufacturer’s recommendations. Take particular care not to damage pipe coatings.
c. Carefully inspect pipe immediately prior to laying. Do not use defective pipe. Replace pipe damaged during construction.
▇. ▇▇▇ pipe to design grade and alignment.
e. Provide proper equipment for lowering pipe into trench.
f. Do not lay pipe in water or when the trench or weather conditions are unsuitable for the work.
g. Provide tight closure pipe ends when work is not in progress.
h. Keep pipe interior free of foreign materials.
i. Clean bell and spigots before joining. Make joints and lubricate gasket in accordance with pipe manufacturer recommendation.
j. Block fittings with concrete or restrain as required to prevent movement.