Manual

ManualsBrandsNIBCO ManualsAccessories for waterRubber-Seated Butterfly Valves

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS

CAUTION: Only qualified personnel should undertake the procedures outlined in this document.

NIBCO INC., its agents, representatives and employees assumes no liability for the use of these

procedures. These procedures are offered as suggestions only.

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224

NIBCO INC.

WORLD HEADQUARTERS

1516 MIDDLEBURY ST.

ELKHART, IN 46516-4740

USA

PHONE: 574.295.3000

FAX: 574.295.3307

WEB: www.nibco.com

Review Date: 01/18/2012

Original Date: 06/01/2009

Installation and Maintenance Guidelines for

NIBCO

Butterfly Valves with Rubber Seats

Figure Numbers

LD-1000/2000/7000/8000 Series

LD/WD-2000/3000/5000 Series

LC/WC-2000 Series

LD/WD-3500 Series

GD-4700 Series

FC/FD-2000 Series

FC/FD-5000 Series

N-200 Series

Summary of content (12 pages)

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NIBCO INC. 1 5 1 6 M I D D L E B U R Y S T. PHONE: WORLD HEADQUARTERS E L K H A R T, I N 4 6 5 1 6 - 4 7 4 0 FA X : USA WEB: 574.295.3000 574.295.3307 w w w. n i b c o .
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I. SHIPMENT & STORAGE NIBCO butterfly valves are individually boxed thru the 12" size. The 14" through 60" butterfly valves are shipped individually with the faces covered using cardboard or plywood to protect the flange sealing surfaces. The disc is shipped in the nearly closed position to protect the sealing edge and prevents the liner from taking a temporary set. The stem bushings and disc edge have been coated with a factory-applied lubricant to prolong storage and service life.
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relation to the valve body and piping system. Pre-planning may save from having to remove a “just installed” valve and reinstalling in another orientation.
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INSTALLATION 1. 2. 3. 4. 5. 6. 7a. Install handwheel (1) onto gear operator shaft and secure with pin (2). (If not already attached) See Figure 1. Turn the handwheel (1) clockwise until in full SHUT position. Remove 2 screws holding pointer cover plate to center of gear operator to expose bore. Retain pointer cover plate and screws for reinstallation later. Assure valve is in full SHUT position, turn valve stem (5) to close disc if necessary.
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7b. 8. 9. 10. 11. 12. Gear operators without adapter bushing:  Align gear operator (3) bore with valve stem (5) and align with desired keyway. Keyway selection will determine handwheel orientation position.  Slide gear operator assembly onto valve stem (5) until seated with valve top flange. Secure gear operator (3) to valve top flange (6) using supplied* fasteners (7 & 8). Reinstall pointer cover plate onto gear operator removed in Step 3 above. Arrow should be aligned to indicate SHUT position.
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5. Pressurize piping to valve and inspect for leakage. If leakage is observed, tighten bolts using cross-over pattern, increasing torque until leak stops. DO NOT EXCEED MAXIMUM TORQUES LISTED IN TABLE 3 BELOW. 6. Recommended torques are made without warranty. Installer must verify proper strength bolts for application. Bolts shall be cleaned and un-lubricated. CAUTION: 1. Class 250 cast iron and Class 300 steel flanges cannot be used on these valves. 2.
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TABLE 4 28” 6.42 30” 6.57 32” 7.40 36” 8.00 42” 9.88 48” 10.87 54” 15.00 58” 15.00 0.63 — 0.69 — 0.75 — 0.94 0.94 1.00 1.12 1.19 1.25 1.38 1.44 1.56 1.69 1.88 — — — — 2.12 — — — — — — — 2.38 — — — 2.62 — — — 2.75 — — — 3.00 — — — 3.12 — — — — 0.75 — 0.88 — 0.94 0.94 0.94 1.00 1.12 1.19 1.25 1.38 1.44 1.56 1.69 1.88 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — 2.81 — — — 2.94 — — — 3.91 — — — 3.56 — — — 3.81 — — — 4.25 — — — 4.
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2” – 12” UL/FM VALVE GEAR OPERATOR Valve Size Valve Series Part Number 2” – 4” 2-1/2” – 3” 5” – 6” 4” – 6” 8” 8” 10” – 12” 10” WD/LD-3510 GD-4765 WD/LD-3510 GD-4765 WD/LD-3510 GD-4765 WD/LD-3510 GD-4765 T117118 PP Part Number T117166 PP T117167 PP T117890 PP T117168 PP TABLE 5 Tools Required 2” – 8” valves 10” – 18” valves 20” – 24” valves V.
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VI. MEMORY STOP INSTALLATION INSTRUCTIONS – 2” THRU 24” SIZE VALVES ONLY 1. Remove the two screws holding the top cover (Indicator Pointer) on to segment gear. Discard cover and screws. 2. Place indicator (5) supplied with kit around bottom hub (4) and align key (6) on bottom hub with slot in segment gear and slide into place. 3. Attach with two M4 x 12 flat head screws (3). 4. Remove once cap screw (1) holding cover onto gear operator housing and replace with stop pin (7). 5.
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VII. KEY DRIVE REPLACEMENT INSTRUCTIONS – 2” THRU 12” UL / FM BUTTERFLY VALVES NOTE: All replacement parts must be obtained from your NIBCO distributor. Key drive material and size is specifically designed to meet performance requirements of UL and FM. Failure to use the properly sized replacement parts may void the UL and FM ratings. Drive Key (section of weakness) will shear if excessive torque is applied to the input of the gear operator while the disc is blocked partially open. 1.
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VIII. MAINTENANCE AND REPAIR – LD/WD-2000/3000/5000 SERIES – 2” THRU 12” SIZE VALVES ONLY Due to the many unique features in the NIBCO butterfly valve design, there is no regular maintenance or lubrication required. These valves are field repairable with the stem, disc, seat and body, collar bushing and O-ring seals available as individual components. IX. REPAIR Remove handle, gear operator or actuator from the cast-mounting pad.
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GEAR OPERATORS All gear operators are lubricated for life at assembly, prior to shipment from factory. During installation, customer should carefully adjust gear operators to suit the valve OPEN and SHUT positions; no further attention is normally required throughout the product life. For installations where spare parts are held on site, it is suggested that a spare gear operator be held as an interchangeable item.