Flowserve DI-B800 User Manual

McCANNA/MARPAC Valves

MMAIM2001

(Part IM004)

DI-B800 Threaded End Ball Valve

Model DI-B800: 3" Installation, Operation and Maintenance Instructions

NOT SHOWN

VIEW A

Part No. Description

1 Body End 2 Body Seal 3 Seat (2) 4 Body 5 Ball 6 Thrust Washer 7 Stem 8 Stem Packing (3 Rings)

Part No. Description

9 Handle 10 Handle Bolt 11 Gland 12 Body Bolts (6) 13 Stop Plate 14 Gland Bolts (2) 15 Stop Washer 16 Gland Flange 17 Stop Plate Set Screw

FIGURE 1

1. Installation

A. Good operating procedure requires periodic observation to ensure that

the valve is functioning properly. The frequency of observation will depend on the application.

B. This valve may be installed in any position, utilizing standard pipe fitting

practices. Flow can be in either direction.

C. Periodically check and tighten body bolts (12) and two gland bolts (14).

D. If leakage is evident in stem packing area, tighten two gland bolts (14)

evenly, a little at a time. If leak persists replacement of stem packing (8) is indicated (See Packing Replacement below).

2. Packing Replacement

There must be no line pressure on the valve at this time.

A. Remove lever of tee handle, not shown in Figure 1 (optional equipment).

B. Loosen “allen” type set screw (17) in stop plate (13) and lift off stop

plate.

C. Completely unscrew both 5/8" gland bolts (14) and remove stop washers

(15) and gland flange (16).

D. Remove stem (7) by following steps 4A through 4D under Seat and

Seal Replacement. At this point, push down on stem (7) and remove it from body (4).

E. Remove thrust washer (6) from stem (7) and remove stem packing (8)

and gland (11) from stuffing box.

Reassembly

A. Place one thrust washer (6) on stem (7) and insert stem into body (4)

and up through the body.

B. Follow steps A through G of Reassembly procedure under Seat and

Seal Replacement.

C. Three rings of packing (8) are then dropped over the stem (7).

D. Drop gland (11) over stem (7).

NOTE: When stem packing (8) is fully shouldered on stem (7), gland (11) will project approximately 1/8" out of stuffing box.

E. Gland flange (16) and gland bolts (14) with stop washers (15) are then

replaced in that order.

F. Put stop plate (13) over stem square and tighten set screw (17).

G. If valve comes equipped with handle, replace.

3. Seat and Seal Replacement

There must be no line pressure on the valve at this time.

A. Unscrew six 1/4" hex head body bolts (12).

B. Remove body end (1). One seat (3) should come out with body end (1).

Remove end seal (2) from body (4).

C. Rotate stem (7) so ball (5) is in fully closed position and remove ball (5).

NOTE: Extreme caution should be taken to avoid damage to the ball surface.

D. Take out other seat (3).

Flowserve recommends replacement of all soft parts whenever the valve is dissassembled for reconditioning (See Section 2, Packing Replacement). The replacement parts can be ordered in kit form.

Reassembly

A. Place one seat (3) in body.

NOTE: Seats are to be installed with concave surface positioned against the ball.

B. Turn the stem (7) to a position with the lower stem tang flats parallel to

the ball cavity of the body.

C. Install the ball (5).

NOTE: Ball should be carefully examined for nicks, scratches, pitting or corrosion and replaced as necessary.

D. Put body seal (2) into shouldered counterbore in valve body (4).

E. Place other seat (3) into body end (1) seat cavity (See NOTE under

Reassembly, Section 2A).

F. Put body end (1) back into body (4) and line up bolt holes.

NOTE: Be careful not to damage body seal (2) when putting body end (1) into body (4).

G. Evenly torque six body bolts (12) back into place.

Flow Control Division

McCANNA/MARPAC

Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does) provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation, and maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use of Flowserve products in connection with the specific application.

While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of satisfactory results by reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve is continually improving and upgrading its product design, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at any one of its worldwide operations or offices.

For more information about Flowserve Corporation, contact www.flowserve.com or call USA 1-800-225-6989.

FLOWSERVE CORPORATION FLOW CONTROL DIVISION

1978 Foreman Drive Cookeville, Tennessee 38501 USA Phone: 931 432 4021 Facsimile: 931 432 3105 www.flowserve.com

NOTICE:

McCANNA Valves are designed and manufactured using good workmanship and materials, and they meet all applicable industry standards. Flowserve Corp. is anxious to avoid injuries and property damage which could result from misapplication of the product. Proper valve selection is imperative. Examples of the misapplications or misuse of a valve include but are not limited to use in a service in which the pressure/temperature rating is exceeded or in a chemical service incompatible with the valve materials; use of undersized valve actuators; use of extremely fast valve actuation and/or continuous valve cycling on standard valves; making modifications of the product of any kind; failure to use caution in operating valves in high temperature, high pressure, or highly hazardous services; and the failure to maintain valves as recommended. The right is reserved to change or modify product design or construction without prior notice and without incurring any obligation to make such changes and modification on products previously or subsequently sold.