NIBCO F-607-OTS, F-607-RWS, F-609, F-609-RWS, M-609 Installation Manual

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NIBCO F-607-OTS, F-607-RWS, F-609, F-609-RWS, M-609 Installation Manual

 

 

 

 

 

 

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INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS

Review Date: 04/16/2016

Original Date: 01/18/12

Installation and Maintenance Guidelines for NIBCO® Fire Protection Valves

2” to 24” 175, 250 and 300 WWP Cast Iron, Alloy Iron and Ductile Iron Metal-Seated and Resilient Wedge Gate Valves

Figure Numbers

F-607-OTS

F-607-RWS

F-609

F-609-RWS

M-609

M-609-RWS

FM-609-RWS

F-697-O

F-607-RW

F-609-RW

M-609-RW

M-609-RW

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

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1.0GENERAL INFORMATION

1.1SCOPE

These instructions are furnished for use in the installation, operation and maintenance of NIBCO 2” to 24” service rated for 175, 250 and 300 WWP bolted-bonnet, solid-wedge or resilient-wedge gate valves having handwheel operation.

1.2GENERAL DATA

A.MANUFACTURER

NIBCO INC.

1516 Middlebury Street Elkhart, IN 46516 Phone: (574) 295-3000

B.FIGURE NUMBERS AND DESCRIPTIONS

Cast Iron:

F-607-OTS WWP 175, Class 125 flanged end, rising stem, I.B.B.M., O.S.&Y. F-609 WWP 175, Class 125 flanged end, non-rising stem, I.B.B.M. M-609 WWP 175, mechanical end, non-rising stem, I.B.B.M. F-697-O WWP 300, Class 250 flanged end, non-rising stem, I.B.B.M.

Ductile Iron:

F-607-RWS WWP 300, Class 125 flanged end, rising stem, I.B.B.M., O.S.&Y.

F-609-RWS WWP 300, Class 125 flanged end, non-rising stem, I.B.B.M. M-609-RWS WWP 300, mechanical end, non-rising stem, I.B.B.M. FM-609-RWS WWP 300, mechanical end, non-rising stem, I.B.B.M.

F-607-RW WWP 250, Class 125 flanged end, rising stem, I.B.B.M.,

O.S.&Y.

F-609-RW WWP 250, Class 125 flanged end, non-rising stem, I.B.B.M.

M-609-RW WWP 250, mechanical end, non-rising stem, I.B.B.M.

FM-609-RW WWP 250, mechanical end, non-rising stem, I.B.B.M.

G-607-RW WWP 250, mechanical end, non-rising stem, I.B.B.M.

ANSI B16.5 150 Class flanges will match up with

ANSI B16.1 125 Class iron flanges

ANSI B16.5 300 Class flanges will match up with

ANSI B16.1 250 Class iron flanges

NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226

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C.IDENTIFICATION PLATES

An aluminum identification plate is attached beneath the handwheel nut. This identification plate gives the figure number of the valve, some general information about the trim and location of NIBCO’s corporate offices.

When more detailed information is required, the NIBCO catalog should be referred to using the valve figure number as the guide.

D.SERVICE

When installing valves for service in corrosive media, the NIBCO Chemical Resistance Guide may be consulted for specific data or contact can be made with NIBCO Technical Services. It is, however, the obligation of the user to make the ultimate decision of fitness for use.

E.PRESSURE TEMPERATURE RATINGS

Pressure and temperature ratings may be found in the Engineering section of the latest printing of NIBCO catalog. This information is taken from applicable ANSI Standards.

F.CODES & REGULATIONS

A valve specified for use in compliance with the ASME Boiler and Pressure Vessel Code, the ANSI code for Power Piping, or other set of regulations sospecified is subject to the limitations and restrictions of said-regulations as mandated by the authority having jurisdiction.

G.PRODUCTION TEST PROCEDURES

Valves are hydrostatically shell and seat tested at twice the WWP rating according to UL and/or FM testing guidelines.

H.PRINCIPAL DIMENSIONS

Principal dimensions of the valve are specified in the appropriate catalog.

1.3DETAILED DESCRIPTION

The gate valves listed above and covered in these instructions are ductile iron, cast iron, bolted bonnet, outside screw and yoke (rising stem) and inside screw (non-rising stem) valve types. The valve is operated with the handwheel. They are used to start or stop the flow of fluids in piping systems. Clockwise rotation of the handwheel closes the valve.

The body and bonnet are threaded and the joint is sealed with a non-asbestos gasket or O-ring. On metal-seated valves, flow through the valve is stopped by forcing the wedge down between the seat rings which are screwed into the body. The wedge is solid and is guided through its entire travel by matching guides in the body.

NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226

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On resilient-seated valves, flow is stopped by forcing the rubber-encapsulated wedge against the epoxy-coated valve body. The solid-metal wedge is encapsulated with an elastomer and is guided through its entire travel by matching guides in the body.

A.RISING STEM OS & Y GATE VALVE

In NIBCO O.S.&Y. metal-seated, rising-stem valves, the bottom of the stem screws into the wedge and is prevented from unscrewing by installing a solid wedge pin.

The wedge is raised and lowered in the waterway by rotating the handwheel which is attached to the yoke bushing. The handwheel fits onto the hex end of the yoke bushing and is held on by the handwheel nut which is threaded onto the top of the yoke bushing. The inside diameter of the yoke bushing has threads that mate to the upper stem threads.

The yoke bushing is held in the top of the bonnet by the bonnet cap against the rim on the bottom of the yoke bushing. As the yoke bushing is rotated, the stem and wedge move up and down. The stem in an O.S.&Y. rising-stem gate valve does not turn.

The stuffing box is formed by the circular space between the stem and bonnet and is filled with non-asbestos packing. The packing is compressed in the stuffing box by the pack gland bushing and packing gland follower, which are drawn down against the packing by two gland bolts and nuts. This prevents leakage between the moveable stem and the stationary bonnet of the valve. The indicator-post flange is held in place with two screws with nuts and seals to bonnet using gasket.

Resilient-seated valves of this type do not use packing material, but seal the stem using split, flat rubber-washers. The stem seal is formed by the circular space between the stem and the indicator-post flange and is sealed with splitrubber washers. This prevents leakage between the moveable stem and the stationary bonnet of the valve.

B.NON-RISING STEM GATE VALVE

In the solid wedge or metal seated F-609 Flanged end and M-609 Mechanical joint valves the stem is one piece but has an integral shoulder on it of a larger diameter than the stem operating diameter. This shoulder is captured in a pocket or counter-bore machined into the bonnet, the stem is secured when the indicator-post flange is bolted into place. The stem is operated by the turning of the handwheel. The threads on the bottom of the stem engage the threads inside the wedge raising it up and down, when the stem is turned by the handwheel. For non-rising stem valves, the handwheels fit onto a tapered square end of the stem. The handwheel is held on by a nut screwed onto threads on the end of the stem.

Since the majority of these valves are either buried or mounted behind walls with indicator or wall-post assemblies, they do not employ a stuffing box with conventional packing, but incorporate the placement of two (2) O-ring seals

NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226

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