Oregon 2024 Standard Specifications for Construction — Section 01150

01150.40 1033 Section 01150 - Potable Water Valves

Description

01150.00Scope - This Work consists of furnishing and installing valves in potable water systems at

the locations shown or at other locations as directed.

Materials

01150.10Materials - Furnish Materials meeting the following requirements:

Backflow Prevention Devices ................................................................ 02480.70 Butterfly Valves ..................................................................................... 02480.22 Combination Air Release/Air Vacuum Valves ....................................... 02480.60 Gate Valves ........................................................................................... 02480.20 Spring -Loaded Plug or Disc Check Valves ....................................... 02480.40(b) Swing Check Valves ......................................................................... 02480.40(a) Tapping Sleeve and Valve Assemblies ................................................. 02480.30 Valve Boxes .......................................................................................... 02480.25 Valve Stem Extensions ......................................................................... 02480.26

01150.11Handling - Handle valves so as to prevent damage to the valve, lining or coating. Load

and unload valves using hoists and slings so as to avoid shock or damage, and under no circumstances allow them to be dropped or skidded. Damaged valves will be rejected. If damage is confined to the coating or lining, it may be repaired in a manner satisfactory to the Engineer . Immediately place all damaged valves apart from the undamaged and remove the damaged valves from the site as soon as possible.

01150.12Connecting Ends - Furnish valves with connecting ends as shown and as required for

connection to pipe and fittings furnished.

Construction

01150.40General - Install valves , back flow devices, and tapping sleeves according to the Plans and

the manufacturer's recommendations. Join to the pipe according to Section 01140 and AWWA Standards for the type of connecting ends furnished. Thoroughly clean and repair joints prior to installation.

(a)Valve and Valve Box Installation - Set valves, valve boxes , and valve box extensions

perpendicular to the pipe. Install valve operator extensions when required. Center the valve box and valve box extension over the operating nut of the valve. Place valve box and valve box extension over the valv e or valve operator so that the valve box extension does not transmit shock or stress to the valve. Install the valve box extension of the unit first, supported by backfill or by a closed -cell foam collar not less than 2 inches in thickness. Do not allow the valve box extension to rest directly on the body of the valve or on the water main.

(b)Valve Operator Extensions - Install a valve operator extension with Rock guard on all valves

that have the valve nut operator installed 3 feet or more below fini sh grade. Hot -dip galvanize extensions after fabrication.

(c)Backfilling - Backfill around valves according to Section 00405. Set the cast iron valve box

cover flush with the Roadbed or finished paved surface.

01150.41 1034 01150.41 Combination Air Release/Air Vacuum Valves - Install combination air release/air vacuum valves as shown. Slope all piping to permit escape of any entrapped air. Perform trenching and backfilling according to 01170.40 and Section 00405.

01150.50Field Testing - After installation, operate valves from full open to full closed to make sure

valves do not bind during operation. Correct all deficiencies in the operation of the valves. Verify the number of turns from full open to full closed and provide to the Engineer for the Agency's records.

01150.51Hydrostatic Testing - Subject valves to hydrostatic testing according to 01140.51

Correct all defects to the satisfaction of the Engineer.

01150.52Disinfecting - Disinfect valves according to 01140.52

Measurement

01150.80Measurement - The quantities of valves will be measured on the unit basis

Payment

01150.90Payment - The accepted quantities of Work performed under this Section will be paid for

at the Contract unit price, per unit of measurement, for the following items:

Pay Item Unit of Measurement

(a)____ Inch ____ Valve ........................................................................... Each

(b)____ Inch ____ Valve With ____ Actuator ............................................ Each

(c)____ Inch ____ Check Valve ................................................................ Each

(d)____ Inch ____ Backflow Prevention Assembly ................................... Each

(e)____ Inch Hydraulically Operated Valve ............................................... Each

(f)____ Inch Combination Air Release/Air Vacuum Valve Assembly ........ Each

(g)____ Inch Tapping Sleeve and ____ Inch Valve Assembly .................. Each

In items (a) through (f), the size of the valve or assembly will be inserted in the first blank. In items (a) through (d), the type of valve, check valve, or assembly will be inserted in the second blank.

In item (b), the type of actuator will be inserted in the third blank.

In item (g), the size of tapping sleeve will be inserted in the first blank. The size of valve assembly will be inserted in the second blank.

Payment will be payment in full for furnishing and placing all Materials, and for furnis hing all Equipment , labor, and Incidentals necessary to complete the Work as specified. No separate or additional payment will be made for :

earthwork not covered under other Pay Items jointing blocking of valves protective coatings valve boxes valve box extensions 01150.90 1035 valve operator extensions valve reconnections hydrostatic testing

Source: Oregon Standard Specifications for Construction, 2024 Edition. Pages 1099–1101 of 1,268.

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01140 Potable Water Pipe and Fittings

01160 Hydrants and Appurtenances