Dwyer BFV User Manual

Bulletin V-6

n = # of holes

øD1

BOLT CIRCLE

n = # of holes

M = thread size

øD

øg

135°

øK

øE

PLCS

Series BFV Butterfly Valves

Specifications - Installation and Operating Instructions

WAFER STYLE

“WF”

WAFER STYLE

LUG STYLE

Series BFV Butterfly Valves are bi-directional allowing control of fluid flow and

sealing in either direction, and are designed for installation between the faces of 125#/150# ANSI flanges. They do not require gaskets; the integral seat serves as the gasket. The wafer and lug bodies have bolt hole locations for alignment and attachment with mating flanges.

Prior to installation, close the valve. Spread the flanges apart far enough to allow the valve to slip easily between the flanges. Insert the valve between the flanges. Be sure to center the valve and not damage the liner. Allow the flanges to return to their un-spread state. Install and hand-tighten all flange bolts. Slowly open the valve, checking for free movement of the disc. If no obstruction is encountered, leave valve in the open position and tighten all flange bolts. Be certain to keep flange faces as parallel as possible during and after tightening bolts or studs. After final tightening, again check the valve for full opening and closing.

Lug style bodies used for dead end service must be installed as marked on the body (inlet–outlet).

DIMENSIONS [in (mm)]

n, WF

1-21/32

(42.07)

1-49/64

(44.85)

1-25/32

(45.24)

2-1/16

(52.39)

2-5/32

(54.77)

2-13/64

(55.96)

2-25/64

(60.72)

2-19/32

(65.88)

3-1/32

(76.99)

øD

2-5/64

(52.78)

2-35/64

(64.69)

3-7/64

(78.98)

4-7/64

(104.38)

4-55/64

(123.43)

6-9/64

(155.97)

7-63/64

(202.80)

9-7/8

(250.83)

11-7/8

(301.63)

3-11/32

3-55/64

4-3/32

(104)

4-27/32

(123)

5-11/32

(136)

5-53/64

(148)

7-5/16

(186)

8-11/32

(212) 9-7/8 (251)

(85)

(98)

Size

6-11/32

2˝

(161.13)

6-57/64

2-1/2˝

(175.02)

7-9/64

3˝

(181.37)

7-7/8

4˝

(200.03)

8-25/64

5˝

(213.12)

8˝

10˝

(226.22)

10-1/4

(260.31)

11-1/2

8-29/32

6˝

(292.10)

13-9/32

12˝

(337.34)

øD1

4-3/4

(120.65)

5-1/2

(139.70)

6-1/16

(153.99)

7-1/2

(190.50)

8-33/64

(216.30)

9-33/64 (241.70) 11-49/64 (298.85)

14-17/64

(362.35)

17-1/64 (432.20)

W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.

P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U. S. A.

n, LT

5/8

(15.88)

5/8

(15.88)

5/8

(15.88)

5/8

(15.88)

3/4

(19.05)

3/4

(19.05)

3/4

(19.05)

7/8

(22.23)

7/8

(22.23)

LUG STYLE

“LT”

SPECIFICATIONS VALVE BODY Service: Compatible liquids, gases,

and steam.

Line Size: 2˝ to 12˝. Body Style: 2-way, wafer, or lug

butterfly. End Connections: Flange, to be used with flanges that are ANSI Class 125 (B16.1) and ANSI Class 150 (B16.5) dimensions. Pressure Limit: 225 psi (15.5 bar) WOG.

øK

3-1/32

(76.99)

3-1/32

(76.99)

3-1/32

(76.99)

3-35/64

(90.09)

3-35/64

(90.09)

3-35/64

(90.09)

4-59/64

(125.02)

4-59/64

(125.02)

5-33/64

(140.10)

øE

1-31/32

(50.01)

1-31/32

(50.01)

1-31/32

(50.01)

2-49/64

(70.25)

2-49/64

(70.25)

2-49/64

(70.25)

4-1/64

(102)

4-1/64

(102)

4-1/64

(102)

ød

9/32

(7.14)

9/32

(7.14)

9/32 (7.14) 23/64 (9.13) 23/64 (9.13) 23/64 (9.13) 29/64 (11.5) 29/64 (11.5) 29/64 (11.5)

Phone: 219/879-8000 www.dwyer-inst.com Fax: 219/872-9057 e-mail: info@dwyer-inst.com

1-25/64

(35.32)

1-25/64

(35.32)

1-25/64

(35.32)

2-11/64

(55.17)

2-11/64

(55.17)

2-11/64

(55.17)

2-49/64

(70.25)

2-49/64

(70.25)

2-49/64

(70.25)

1-17/64

(32.15)

1-17/64

(32.15)

1-17/64

(32.15)

1-17/64

(32.15)

1-17/64

(32.15)

1-17/64

(32.15)

1-1/2

(38)

1-1/2

(38)

1-1/2

(38)

Wetted Materials:

Body Material: Ductile iron. Disc: 316 SS. Seat and O-ring: EPDM or PTFE. Stem: 410 SS.

Temperature Limits: Disc: EPDM: -50

to 250°F (-46 to 121°C). PTFE: 0 to 300°F (-18 to 149°C).

Bearings: Nylatron. Flow Rate: See Cv chart. Operator: 2 to 6˝: 10-position locking

hand lever. 8 to 12˝: manual gear.

ISO 5211

23/64 x 23/64

(9.13 x 9.13)

23/64 x 23/64

(9.13 x 9.13)

23/64 x 23/64

(9.13 x 9.13)

7/16 x 7/16

(11.11 x 11.11)

9/16 x 9/16

(14.29 x 14.29)

9/16 x 9/16

(14.29 x 14.29)

43/64 x 43/64

(17.07 x 17.07)

7/8 x 7/8

(22.23 x 22.23)

7/8 x 7/8

(22.23 x 22.23)

10-41/64

(270.27)

10-41/64

(270.27)

10-41/64

(270.27)

10-41/64

(270.27)

10-41/64

(270.27)

10-41/64

(270.27)

14-3/16

(360.36)

19-11/16

(500.06)

19-11/16

(500.06)

F05

F07

F10

ALVE DISASSEMBLY

1. After removal of valve from the piping system, open the valve fully; . Remove the handle or actuator;

. Remove the stem retaining pins;

4. Pull out the upper stem;

5. Pull out the bottom stem; . Remove the disc from the liner. Do not damage the disc edge;

. Remove the liner;

8. If the valve has bushings and o-rings, remove by tapping with blunt instrument; . Inspect all components for wear and replace as required.

VALVE ASSEMBLY

1. Clean all reusable parts; . If valve has bushings and o-rings, tap them carefully;

. Apply a lubricant or soapy solution compatible with elastomers to facilitate

assembly;

4. Insert liner into body by pressing it into the body evenly; . Insert disc in open position into liner. Make certain broached end of disc is at

the upper stem end of the body;

6. Coat the upper stem with a general purpose lubricant & install into body; . Install bottom stem;

. Install retaining pins to both stems;

9. Install the operator;

10. Check assembly by opening & closing the valve several times;

1. Follow installation instructions for reinstalling the valve in the piping system.

MAINTENANCE

o regular maintenance or lubrication is required.

WARRANTY

The Series BFV Butterfly Valve is warranted from defects in materials and workmanship for (1) year from the date of purchase. In the unlikely event the valve should fail, the unit can be returned to the factory for warranty repair if the warranty period has not expired. Contact our customer service department for an RGA number and to set up the return.

BREAK TORQUES IN INCH-POUNDS

EPDM Seats

ervice Pressure

50 psi

00 psi

1 150 psi

00 psi

PTFE Seats

ervice Pressure

0 psi

100 psi

50 psi

1 200 psi

8 108 1 150

125

142

-1/2

126 1 150 1

130 1 160 2

-1/2

179 1 210 2

195 2 248 3

Size (inches)

295

610

335

725

Size (inches)

390

650

443

720

750

847

890

9 974

020

1440

490

1 1549

800

1690

710

1 1770

890

2466

910

2 3360

890

3699

365

4 5040

835

Cv VALUES

EGREE OPENING

Size

10°

0 0 0 0

0.8

20°

151

234

-1/2˝

4 5˝ 6˝ 8˝

10˝

2˝

v is the number of U.S. GPM of 60°F water that will pass through the valve with a 1 PSI

C pressure drop.

30°

40°

188

408

320

694

495

1072

ANUAL GEAR “MG”

50°

45 65 70

727 1237 1911

60°

64 98

116

6 1202 2047 3162

70°

90 144 183

1903 3240 5005

80°

930 1437 2854 4859

505

ULL OPEN

3510 4 5560 7

5265 6 8340

1367

90°

135 220 302

022

579

1 3136 5340 8250

100

558

150

HAND LEVER “HL”

HAND LEVER DIMENSIONS [in (mm)]

Size

LO2˝10-41/64

(270.27)

2-1/2˝

10-41/64

(270.27)

3˝

10-41/64

(270.27)

4˝

10-41/64

(270.27)

5˝

10-41/64

(270.27)

W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.

P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U. S. A.

6˝

10-41/64

(270.27)

MANUAL GEAR DIMENSIONS [in (mm)]

Size

8˝-

2-61/64

2-31/64

3-63/64

(75)

3-13/64

(81.36)

1-1/2

5/8

-11UNC

(63.10)

3-5/32

(80.17)

2-1/2

1-1/2

5/8

-11UNC

10˝

12˝

LUG RECOMMENDED FLANGE BOLT LENGTHS (Fig. 1)

DIM

B D

(101.20)

4-21/32

(118.27)

1-1/2

5/8

-11UNC

2-61/64

(75)

3-13/64

(81.36)

1-3/4

-11UNC

9-27/32

(250.03)

8-15/16

(227.01)

FIGURE 1

Valve Size (inches)

1-3/4

3/4

5/8

-10UNC

3-25/64

(86.12) 3-9/32

(83.34)

-10UNC

3/4

11-13/16 (300.04)

3/4

-10UNC

2-49/64

(70.25)

2-49/64

(70.25)

2-1/4

7/8

-9UNC

1/8

(3.18)

1/8

(3.18)

2-1/2

7/8

-9UNC

Phone: 219/879-8000 www.dwyer-inst.com Fax: 219/872-9057 e-mail: info@dwyer-inst.com