Nibco Unibody Flanged Ball Valves User Manual download pdf

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: 12/15/1994

Installation, Maintenance and Operation Instructions for

NIBCO

Series F510 and F530

Unibody Flanged Ball Valves

CAUTION: It is important for your safety and protection that the following precautionary

measures are taken prior to removing the valve from service or before any disassembly of

the valve.

1. Keep hands out of the inside of the valve. A remotely actuated valve may close at

any time.

2. Know the application of the valve to be serviced. If any doubt exists, consult the

proper authority.

3. Protective clothing should be worn commensurate with the media involved.

4. De-pressurize the line and valve as follows:

a. Open valve, drain line.

b. Cycle valve to relieve residual pressure that may be trapped in valve. The valve

should be left in the partially open position.

c. After removal of valve from line, place in vertical position and drain any

remaining media.

I. INSTALLATION

1. Place valve in partially open position.

2. Check connecting pipe flanges for accuracy. Make sure the pipe flange faces are

clean of any foreign material such as scale, metal shaving or welding slag.

3. To ensure proper installation, standard piping practices should be followed.

4. The NIBCO flanged ball valve is a bi-directional valve.

5. Use correct size flange bolts and follow the recommended procedures of the gasket

manufacturer when tightening the flange bolts.

II. MAINTENANCE

1. Routine maintenance consists of tightening the packing to compensate for wear. If

there is seepage present at stem seal, tighten the packing nut (8) 1/4 turn until

snug.

2. General maintenance consists of periodic observation of valve to ensure that the

valve is functioning correctly.

3. For seat and seal replacement, refer to disassembly and assembly procedures

listed below. Seat and seal kits may be purchased through your local NIBCO

distributor.

1 2 3

Summary of Contents

Page 1 - Unibody Flanged Ball Valves

INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS CAUTION: Only qualified personnel should undertake the procedures outlined in this documen

Page 2 - IV. ASSEMBLY

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 2 III. DISASSEMBLY 1. If complete disassembly is necessary, all seats and sea

Page 3

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224 3 FIGURE 1 For any technical enquiries please call NIBCO Technical Services

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Nibco Unibody Flanged Ball Valves User Manual

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