Owner manual

ManualsBrandsNIBCO ManualsAccessories for waterBronze, Globe and Angle Valves 1/ to Class 175 WWP

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: 1.888.446.4226 • Fax: 1.888.336.4226

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: 08/06/2014

Original Date: NA

Installation and Maintenance Guidelines for

NIBCO

Bronze, Globe and Angle Valves

1/4” to 3” Class 125, 150, 300 and 175 WWP

Figure Numbers

GLOBE ANGLE

KT-211-W-UL T-301-W

T-211-B, Y T-311-Y

S-211-B, Y S-311-Y, W

S-235-B, Y T-335-Y

T-235-B, Y T-375-B

T-256-AP T-376-A

T-275-B, Y T-376-AP

T-276-A KT-65-UL

T-276-AP

Summary of content (8 pages)

PAGE 1
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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1.0 GENERAL INFORMATION 1.1 SCOPE These instructions are furnished for use in the installation, operation and maintenance of NIBCO 1/4” to 3” Class 125, 150, 300 and 175 WWP bronze, globe and angle valves, with screwed in or union bonnet, rising stem and having handwheel operation. 1.2 GENERAL DATA A. MANUFACTURER NIBCO INC. 1516 Middlebury Street Elkhart, IN 46516 Phone: (574) 295-3000 B.
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T-376-(A/AP) Class 300 threaded end, rising stem, union bonnet, A – nickel alloy disc and seat or AP – 420 stainless steel plug and seat. All threaded end preparations of valves meet ASME B1.20.1 (NPT) requirements. All solder end valves meet the requirements of ASME Standard B16.22. C. IDENTIFICATION PLATES An aluminum identification plate is attached beneath the handwheel nut.
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1.3 DETAILED DESCRIPTION The globe and angle valves listed above and covered in these instructions are bronze valves made of ASTM B62 material for Class 125, 150, and 175 WWP valves and from ASTM B61 material for Class 200 and 300 valves. The valves are operated with the handwheel and are used to start, stop or throttle the flow of fluids in piping systems. Globe and angle valves are rising stem type only. Nonrising stem globe valves are not available.
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2.0 INSTALLATION 2.1 PRELIMINARY INFORMATION The globe and angle valves should preferably be installed with the stem pointed vertically upward. However, it is normally acceptable to have the valve stem pointed in a horizontal position either in vertical or horizontal piping.
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For water service applications: The flow should enter the valve so that it pushes up from underneath the seat disc. In other words, water flow should arrive from under the seat disc and flow smoothly out of the valve over the seat. Water Flow Steam Flow After the valve has been installed, the valve should be tested to make sure that it opens and closes easily and that the bonnet joints or pipe joints are not leaking. 3.0 OPERATION Globe valves are generally installed to be used for throttling purposes.
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Excessive tightening may cause difficult operation of the valve and could cause damage to the stem or packing nut. If the gland has run out of travel, isolate and depressurize the valve for repacking or the addition of more packing. Repacking of valves under pressure is not a recommended practice. This is dangerous and could result in serious injury even if the valve appears to be back—seated.
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to give the serial letter because over a period of time the valve designs may have had modifications which could render the parts useless if they are of a different letter series. 7.0 MAJOR REPAIRS For other repairs or replacements not covered in the above description, contact the Technical Services Department of NIBCO INC. for special instructions. Always give the figure number and size shown on the identification plate affixed to the valve along with the general serial letter.