SECTION VALVES AND OPERATORS
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1 SECTION VALVES AND OPERATORS PART 1 - GENERAL 1.1 SUBMITTALS A. Shop Drawings: 1. Product data sheets for make and model. 2. Complete catalog information, descriptive literature, specifications, and identification of materials of construction. 3. Certificate of Compliance for: Butterfly valves; full compliance with AWWA C504. B. Tests and inspection data. C. Operation and Maintenance Data as specified in Section 01330, SUBMITTAL PROCEDURES. 1.2 PRODUCT DELIVERY, STORAGE, AND HANDLING A. In accordance with manufacturer s directions. PART 2 - PRODUCTS 2.1 GENERAL A. All valves shall be the same size as the pipe in which they are installed, unless specifically noted otherwise on the Drawings. B. All valves shall include all appurtenant parts (operators, chainwheels, handwheels, valve stems, floor stands, gear boxes, operating nut, etc.) for a complete operating valve. 1. Valve shall be, as much as practical, fully factory assembled. C. All valves shall open by turning counter-clockwise. Maximum force required for operation shall be 40 lbs. D. Where Lead-Free Bronze or Brass is specified, materials shall be in compliance with California Health & Safety Code Section Not more than a weighted average of 0.25 percent of the wetted surface of the valve shall be lead. Valve shall be provided with a hang tag or other marking that easily identifies the valve as Lead-Free. E. Coatings and Linings: 1. Provide factory-applied coatings as described herein. 2. Where liquid epoxy coatings are specified, coatings shall conform to AWWA C Field coat the exterior of all valve bodies with the same coating as is required for the adjacent pipe in Section 09900, PAINTING and Section 15100, PIPE AND FITTINGS, unless otherwise specified. F. Nuts, Bolts and Washers
2 1. Hex Bolts and Nuts: ASTM A193/194 Grade B8 (Heavy Hex 304SS) ASTM A320/A320M, Type 304 stainless steel, Grade B8, Class 2 2. Nuts: ASTM F594, Type 304 stainless steel, Grade B8, Class 2 3. Washers: Type 304 stainless steel G. All valves shall be rated for psi working pressure. H. Automatic operator shall be installed on the existing gate valve. CONTRACTOR to field verify make and model of the existing gate valve and coordinate with automatic operator manufacturer for sizing and designing of this operator. Operator shall be located within the valve vault. I. All valves smaller than 4 and pilot systems for control valves shall be insulated and heat traced. All valves 4 and larger shall be fitted with an insulated removable wrap. Reference Section 15080, Piping Insulation. J. Warranty: 1. Provide a 2-yr warranty on all valves from date of start-up. Warranty shall cover defects in workmanship, design, and materials. If any component should fail during the warranty period, it shall be corrected and the unit restored to service at no expense to the OWNER. 2.2 SUBMITTALS A. 2.3 BALL VALVES A. BAV-01LF: Lead-Free Ball Valve, 3 inches and smaller: 1. Service: Potable Water a. Two-piece, end-entry type b. Lead-Free Brass & Bronze Materials in compliance with California Health & Safety Code Section Not more than a weighted average of 0.25 percent of the wetted surface of the valve shall be lead. Valve shall be provided with a hang tag or other marking that easily identifies the valve as Lead-Free. c. Lead-Free Bronze (Alloy C89836, C89833 or C69300) body d. Chrome-plated lead-free brass (Alloy C27450 or C69300) ball e. RTFE or PTFE seats and packing f. Zinc-coated steel hand lever operator with vinyl grip g. Rated 600-psig WOG, 150-psig SWP. 3. Manufacturer and Products: a. Threaded: 1) Apollo 70LF100 Series 2) Milwaukee; UPBA100 3) Nibco T LF 4) Or Equal b. Soldered: 1) Apollo 70LF200 Series 2) Milwaukee; UPBA150 3) Nibco S LF 4) Or Equal
3 2.4 CHECK VALVES A. CKV-15: Slanting Disc Check Valve, 2 Inches to 24 Inches: 1. Service: Water. a. Slanting or tilting disc design b. Off-center pivot c. Body: ductile iron d. Two-piece design e. Bronze seat on 55 degree angle, f. Disc: bronze or ductile iron, g. Pivot pin and bushing: stainless steel, h psi working pressure rating, i. Bottom mounted buffer cylinder for cushion closing, j. Valve disc position indicator. k. Coatings and Linings: 1) Liquid epoxy, 12 mil minimum, for valve interior and exterior. 2) For potable water applications, epoxy lining shall be NSF 61 approved. 3. Manufacturers and Products: a. APCO; Series 800. b. ValMatic c. Or equal. 2.5 GATE VALVES A. GAV-10: Resilient-Seated Gate Valve, 3 Inches to 24 Inches: 1. Service: Water. a. Conforms to AWWA C509 (<12 ) or AWWA C515 (14 to 24 ) b. Iron body c. Resilient seat, bronze mounted d. Full port e. Valve Ends: 1) Mechanical joint ends for buried service, unless shown otherwise on drawings or valve schedule 2) Flanged ends for exposed service f. Non-rising stem g. Actuator for Buried Service: 1) Stem extension, as required, to bring operating nut to within 12 of ground surface. 2) 2-inch operating nut h. Actuator for Exposed Service: 1) Handwheel i. Design working water pressure: psig j. Coatings and Linings: 1) Liquid epoxy, 12 mil minimum, for valve interior and exterior. 2) For potable water applications, epoxy lining shall be NSF 61 approved. 3. Manufacturers and Products: a. Mueller b. M&H Valve c. Or Equal
4 2.6 NEEDLE VALVES A. NED-10: Needle Valve: 1. Service: Water. 2. Working Pressure: psi minimum 3. Body Material: 316 SS 4. Manufacturers and Products: a. Swagelok b. Haskel c. Hy-Lok d. Or Equal. 2.7 AIR RELIEF AND VACUUM VALVES A. AVV-02: Air/Vacuum Valve for Vertical Turbine Pumps, 2 1. Service: Potable, Raw or Reclaimed Water. a. Automatically exhausts large amounts of air when pump starts, and allows large quantities of air to re-enter the pump column when pump stops to break vacuum. b. Once air has been exhausted, uses water pressure to close valve. In CLOSED position, seat against resilient seat to prevent water leakage. c. Discharge orifice shall be fitted with a double-acting throttling device to automatically regulate and restrict air venting and to establish pressure loading on rising suction column of water to minimize air surging. On pump stop, throttling device shall automatically open to allow full line unrestricted air re-entry to prevent vacuum from forming in the pump column. d. Rated psi working pressure e. Cast iron, ductile iron, or semi-steel bodyand cover with stainless steel float and trim. f. Model determined by size as indicated in Valve Schedule or on Drawings. g. Provide vent hose or piping and route discharge line to nearest drain/structure. 3. Manufacturers and Products: a. APCO Valve and Primer Corp. b. Val-Matic Valve 4. Or equal. 2.8 OPERATORS: A. General: 1. Operator force not to exceed 40 pounds under any operating condition, including initial breakaway. Gear reduction operator when force exceeds 40 pounds. 2. Operator self-locking type or equipped with self-locking device. 3. Provide position indicator on all valves. 4. Worm and gear operators one-piece design worm-gears of gear bronze material. Worm hardened alloy steel with thread ground and polished. Traveling nut type operators threaded steel reach rods with internally threaded bronze or ductile iron nut. 5. Valve handles, wheels, etc. to be designed to accommodate a padlock. B. Manual Operator: 1. Galvanized and painted handwheels. 2. Lever operators allowed on quarter-turn valves 8 inches and smaller. 3. Cranks on gear type operators
5 4. For all valves above 5-0 above adjacent working surface (finished floor or finished grade), provide chain wheel operator with tiebacks 5. For all exposed valves below adjacent working surface (finished floor or walkway), provide extension stem, floor stands, and other accessories to permit operation from 2-6 above adjacent working surface. 6. For all buried valves 3 and larger, provide stem extension, valve bonnet, valve box and 2 AWWA operating nut such that operating nut is within 12 of adjacent finished grade. a. For small-diameter buried valves, provide cross-shaped handle for operating with forked key. C. Automatic Operators: 1. General: a. Where indicated on the drawings and/or in the valve schedule, provide automatic operators. b. Size operators to 1-1/2 times required operating torque. Motor stall torque not to exceed torque capacity of valve. c. Provide stem protection for rising stem valves. d. All automatic operated valves shall have manual override option. Manual override option shall not require any more than 40 lbs of force for valve operation. e. Coordination of all automatic operators with the valves being operated shall be the responsibility of the valve manufacturer. Automatic operators shall be completely compatible with the valves being controlled. f. Automatic Operators shall be of the following types: 2. Type 100 Motor, Heavy-Duty Open/Close: 1) Shall operate valve from fully closed to fully open or the reverse in 30 seconds. 2) Power Supply: 480V, 3 PH, 60 HZ AC b. Motor: 1) Sized for 15-minute, intermittent duty. 2) 480 VAC, 3 PH, 60 HZ 3) 1800 RPM 4) Class F insulation 5) TENV c. Controls: Each actuator shall be equipped with the following: 1) Transformer: Provide VAC control transformer for 120 VAC controls. 2) Magnetic reversing starter. 3) Provide a lost motion device to enable the motor to attain full speed before encountering the stem load. 4) Control Relays: Actuator shall accept maintained OPEN and CLOSE contact inputs. Upon loss of signal actuator shall stop and hold last position. 5) Two position limit switches: Provide two-train gear limit switches. LSC and LSO 2NO, 2NC contacts each. Provide switches rated 10A at 120 VAC. 6) Torque limiting switches: Provide torque limiting switches responsive to the mechanical torque developed in seating, backseating, or by obstruction. Torque control accuracy shall be within plus or minus five percent. Permit calibration of the switches without requiring the use of torque wrenches. Provide dry contacts for an external torque alarm. 7) Local Controls: Provide LOCAL/OFF/REMOTE selector switch and OPEN/STOP/CLOSE push button controls. 8) Local Position indication: provide open and closed indicator lights. Lights shall be at least 2 watt LED, green lens for open and red lens for closed. Activate both lights when between open and closed
6 9) Dry contact for remote indication of the actuator mode of operation. Contact shall be closed when the LOCAL/OFF/REMOTE switch is in the remote position and internal control power exists. 10) Terminal connections for remote controls fed from an internal 120VAC supply. d. Enclosure: 1) NEMA 4 2) Provide space heater and thermostat. Space heater shall maintain internal enclosure temperature 5 degrees F greater than ambient temperature at all times. e. Spare Parts: Furnish a set of the following spare parts with each actuator: 1) Electric Motor (only one motor for each different size and type of motor is required). 2) Declutch Level O-ring. 3) Drive Sleeve Assembly O-ring. 4) Drive Sleeve Assembly seal ring. 5) Worm gear shaft O-ring. 6) Torque transmission stem O-rings. f. Manufacturers and Products: 1) EIM Series ) Or Equal 2.9 ACCESSORIES A. T-Handled Operating Wrench: 1. One each galvanized operating wrench, 4 feet long. 2. Manufacturers and Products: a. Mueller; No. A b. Clow No.; F c. Or Equal. B. Cast Iron Valve Box: Designed for traffic loads, sliding type, with minimum of 6-inch ID shaft. 1. Box: Cast iron with minimum depth of 9 inches. 2. Lid: Cast iron, minimum depth 3 inches, marked WATER. 3. Extensions: Cast iron. PART 3 - EXECUTION 3.1 VALVE SCHEDULE A. A Valve Schedule has been attached to this Specification and is incorporated herein by reference. Provide valves in accordance with Valve Schedule. B. For valves that are not referenced in Valve Schedule, provide the valve type called for on the Drawings. 3.2 PREPARATION A. Cleaning: 1. Clean all mating faces of valve (threads, flange faces, etc.) prior to assembly. 2. Remove all debris from valve body prior to assembly
7 3. Take extra care to clean mating faces of existing pipe and fittings which may have corrosion, dirt, debris and mineral build-up which should be removed for a proper fit. B. Apply joint compound, lubricant, etc. as recommended by valve manufacturer for proper installation prior to installation. C. Install valves in accordance with the following schedule and as noted on the Drawings: 3.3 INSTALLATION A. Install valves per manufacturer s recommendations. B. Install valves so handles operate from fully open to fully closed without encountering obstructions. C. Install valves in location and orientation for easy access for routine operation and maintenance. Access should be such that an operator can operate the valve by reaching a handle, chain, etc. at a height between 2-6 and 5-0 above adjacent work surface (for buried valves, this is accomplished with a t-handle wrench and the operating nut being within 12 of finished grade). 3.4 TESTS AND INSPECTION A. Valve may be either tested while testing pipelines, or as a separate step. B. Test that valves open and close smoothly under operating pressure conditions. Test that two-way valves open and close smoothly under operating pressure conditions from both directions. C. Inspect air release and vacuum valves as pipe is being filled to verify venting and seating is fully functional. D. Count and record number of turns to open and close valve; account for any discrepancies with manufacturer s data. E. Set, verify, and record set pressures for all relief and regulating valves. F. Automatic valves to be tested in conjunction with control system testing. Set all opening and closing speeds, limit switches, as required or recommended by the ENGINEER. 3.5 SUPPLEMENTS A. The following supplements are attached to this Specification section and incorporated herein by reference: VS Valve Schedule + + END OF SECTION
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