CWT Butterfly Valve

P.O. BOX 91005, ROYAL OAK, CALGARY,ALBERTA, CANADA T3G 5W6TEL: 1-(403)-8006686/8006684FAX: 1-(403)-3750638Email: [email protected]://www.canawest.com

BUTTERFLY VALVE

1. VALVE TYPE

2. SIZE

3. PRESSURE

6. BODY MATERIAL

1 1~2

3~6

7~10

11~15

16

16

17

TABLE OF CONTENTS

CANAWESTTECHNOLOGIES INC. 1

Email: [email protected]://www.canawest.com

CANAWEST FIGURE NUMBER SYSTEM

CONCENTRIC BUTTERFLY VALVE

DOUBLE OFFSET BUTTERFLY VALVE

TRIPLE OFFSET BUTTERFLY VALVE

TORQUE VALUE CHART

THE STATIC STRESS ANALYSIS

INSTALLATION MAINTENANCE AND OPERATING INSTRUCTION


CBU=BUTTERFLY VALVE

02=2"

21=2 1/2"

03=3"

04=4"

05=5"

06=6"

08=8"

10=10"

12=12"

14=14"

16=16"

18=18"

20=20"

24=24"

26=26"

28=28"

30=30"

32=32"

36=36"

40=40"

42=42"

01=ANSI CLASS 150

03=ANSI CLASS 300

06=ANSI CLASS 600

4.CONSTRUCTION

C=CONCENTRIC BUTTERFLY VALVE

D=DOUBLE OFFSET BUTTERFLY VALVE

T=TRIPLE OFFSET BUTTERFLY VALVE

5. ENDSRF=RAISED FACE FLANGED

JF=RTJ FLANGED

RW=RAISED FACE FLANGEDxWELDED END

JR=RTJxRAISED FACE FLANGED

JW=RTJxWELDED END

BW=BUTT WELDED

FF=FLAT FACE

WR=WAFER RF

LR=LUGGED RF

01=ASTM A216 WCB/A105

02=ASTM A352 LCC/A350 LF2

03=ASTM A351 CF8M/A182 F316

04=ASTM A890 4A/A182 F51

05=ASTM A182 F55

06=ASTM A105N

07=ASTM A216 WCB+ENP/A105+ENP

08=ASTM A395

09=ASTM A351 CF8/A182 F304

19=ASTM A216 WCC

20=ASTM A352 LCB

21=ASTM A217 C12A/A182 F91

22=ASTM A182 F12

23=ASTM A182 F321

24=ASTM A217 WC1

25=ASTM B61/B62

26=ASTM A 694 F60

27=ASTM A494 N-7M/CW-6MC

10=ASTM A217 WC6/A182 F11

11=ASTM A217 C5/ASTM A182 F5

12=ASTM A351 CF3M/A182 F304L

13=ASTM A351 CF3M/A182 F316L

14=ASTM M35-1/B 564 N04400

15=ASTM A351 CN7M/

16=ASTM A217 C12/A182 F9

17=ASTM A217 WC9/A182 F22

18=ASTM A 126 B

28=ASTM A487 Gr 9

29=ASTM A182 F347

30=ASTM A351 CF8C

31=ASTM A182 904L

32=ASTM A182 F304H

33=ASTM A890 5A/A182 F53

CBU 03 01 D RF 01 08 P L C


CANAWESTTECHNOLOGIES INC. 2-3

10. MATERIAL TYPE C=CASTING F=FORGED


9.OPERATOR L=LEVER/WRENCH

G=GEAR BOX

B=BARE STEM

W=HANDWHEEL

E=ELECTRICAL OPERATOR

P=PNEUMATIC OPERATOR

H=HYDRAULIC OPERATOR

S=SOLENOID OPERATOR

8.BUTTERFLY SEAT P=PTFE/TEFLON

B=NBR

T=VITON

E=EPDM

R=REINFORCED PTFE

C=PCTFE

M=METAL TO METAL

1.PART NUMBER EXAMPLE:

CASTING

OPERATOR

PTFE

TRIM 8

ASTM A216 Gr WCB/ASTM A105

RAISED FACE FLANGED


CLASS 150

3 INCH

BUTTERFLY VALVE

CASTING

OPERATOR

RAISED FACE FLANGED


BUTTERFLY VALVE

2.SERIES NUMBER EXAMPLE:

CBU D RF L C


DISC

BODY

SEAT

2

1

4

3

5

6

7

8

9

10

DESIGN FEATURES:

SIMPLE STRUCTURE AND GOOD SEALING PERFORMANCE.

GOOD FLOW REGULATING FUNCTION AND BI-DIRECTIONAL SEALING FEATURE.

SEALING PRINCIPLE: THE SHAFT AND DISC ARE IN THE SAME CENTERLINE. THE RUBBER SEAT IS

SQUEEZED BY THE DISC'S OUTER EDGE DURING ROTATION, WHICH FURTHER PRODUCED

ELASTIC FORCE, TO ENSURE THE VALVE CLOSURE WITH THE TIGHT SEALING RESULT.

TRIM NUMBER#

01=13CR

02=304SS

05=STL / STL

08=13CR / STL

10=316SS

12=316 / STL

13=ALLOY 20

14=ALLOY 20 / STL

15=STL / STL

16=STL / STL

20=BRONZE

23=304SS / STL

27=316L / 316L

28=316L / STL

29=STL / STL

30=F55 / STL

WEDGE FACE

13CR

304SS

STL

13CR

BRONZE

304SS

316LSS

316LSS

STL

F55

SEAT FACE

13CR

304SS

STL

STL

BRONZE

STL

316LSS

STL

STL

STL

STEM

ASTM 276 410

ASTM A276 304

ASTM 276 410

ASTM 276 410

316SS 316SS ASTM A276 316

316SS STL ASTM A276 316

ALLOY 20 ALLOY 20 ASTM B473

ALLOY 20 STL ASTM B473

STL STL ASTM A276 304

STL STL ASTM A276 316

MONEL MONEL ASTM B865 N05500

ASTM 276 410

ASTM A276 304

ASTM A276 316L

ASTM A276 316L

ASTM A276 316L

ASTM A182 F55

09=MONEL

7. TRIM MATERIAL

STANDARDS:

1

2

3

4

5

6

7

8

PART NAMEITEM STANDARD LOW TEMPERATURE STAINLESS STEEL




NPS1/2"~24"

DESIGN AND MANUFACTURE: API 609

FACE TO FACE DIMENSIONS: API 609

FLANGE ENDS DIMENSIONS:

ASME B16.5

PRESSURE-TEMPERATURE RATINGS: ASME B16.34

PRESSURE: CLASS 150

SIZE: NPS 2"~36"

BILL OF MATERIAL(PARTIAL)

BODY

BUSHING

SEAT

PIN

STEM

DISC

BUSHING

GEAR OPERATOR

ASTM A216 WCB

PTFE

PTFE/RUBBER

ASTM A276 410

ASTM A182 F6

ASTM A216 WCB

PTFE

ASTM A352 LCC

PTFE

PTFE/RUBBER

ASTM A276 304

ASTM A182 F304

ASTM A352 LCC

PTFE

ASTM A351 CF8M

PTFE

PTFE/RUBBER

ASTM A276 316

ASTM A182 F316

ASTM A351 CF8M

PTFE

GEAR OPERATOR, ELECTRICAL OPERATOR PNEUMATIC OPERATOR HYDRAULIC OPERATOR ETC. ARE AVAILABLE

NOTE: OTHER MATERIALS ARE AVAILABLE UPON REQUEST.

COPPER(Cu)

ASTM B148 C95800

PTFE

PTFE/EPDM

ASTM A276 316

ASTM B148 C95800

ASTM B148 C95800

PTFE

ASSEMBLY

CLASS 150

NPS

DN

L

L1

H

H1

W

WT(WR)

in

mm

mm

mm

mm

mm

mm

Kg

2 2-1/2 3 4 5 6 8 10 12 14 201816 24 30 36

50 12510080 900750600400 450 50035030025020015065

43 52 564646 6856 60 7878 102 114 127 154 200165

46 595549 49 818159 7163 157130117105 203168

143 215200150 165 513378226 314274 728676618550 --

2.9 3.9 4.8 6.4 8.8 44.112 14.8 19.6 32.5 53.5 75 125

300 300 350 400 400

89 10399 114 125

250200 200 200 250 450 450 450 450

270184 215139 255 322 365 395 434

- -

- -

200 --

WT(LR) Kg 3.5 4.5 7 12.6 13.2 7115.2 22.5 33 48 90 105 180 278 --

CONCENTRIC BUTTERFLY VALVE -WAFER/LUG TYPE

CBUCWRLC

CBUCLRLC

CBUCLRGC CBUCWRGC



CLASS 150

NPS

DN

L

L1

H

H1

W

WT

in

mm

mm

mm

mm

mm

mm

Kg

2 3 4 6 8 10 12 14 201816 24 30 36

50 10080 900750600400 450 500350300250200150

127114 165140 152 190178 216 222 229 267 330318

111 130117 194182143 168155 272234227221 338326

143 200165 513378226 314274 728676618550

8 11 14 8222 32 45 58 108 150 230

300 350 400

89 103 114

250200 200 200 250 450 450 450 450

280175 200139 225 300 365 380 434 - -

340 --

108

- -

- -


TYPES OF SEAT:

1.SEAT ON THE BODY 2. SEAT ON THE DISC 3.T-SHAPED SEAT

DESIGN FEATURES:

DISC

SEAT GLAND

SEAT

BODY

BODY

SEAT

DISC

SEAT GLAND

DISC

SEAT GLAND

SEAT

BODY

CONCENTRIC BUTTERFLY VALVE- DOUBLEFLANGED TYPE

L

L1

GOOD FLOW REGULATING FUNCTION AND SEALING PERFORMANCE.

DIFFERENT SEAT DESIGNS SATISFY VARIOUS SERVICE CONDITIONS.

THE DISC CAN MOVE AWAY FROM THE SEAT FAST WHEN OPENING TO REDUCE THE FRICTION, AND THEN PROLONG

THE VALVE LIFE.

SEALING PRINCIPLE: TWO OFFSET DESIGNS I.E. THE OFFSET BETWEEN THE STEM’S ROTATION AXIS AND THE CENTERLINE

OF VALVE BODY; AND THE OFFSET BETWEEN THE STEM’S ROTATION AXIS AND THE CENTERLINE OF VALVE SEAT RING.

THE RUBBER SEAT IS SQUEEZED BY THE DISC’S OUTER EDGE SLOWLY AND GRADUALLY DURING ROTATION, WHICH FURTHER

PRODUCED ELASTIC DEFORMATION, TO ENSURE THE VALVE CLOSURE WITH THE TIGHT SEALING RESULT.

1

2

3

6

4

5

7

1211

9

8

10

1316 1415

18

17

19

20

CBUCRFGC



DOUBLE OFFSET BUTTERFLY VALVESTANDARDS:

DESIGN AND MANUFACTURE:

FACE TO FACE DIMENSIONS:


NPS1/2"~24

NPS 26" ~36"

PRESSURE-TEMPERATURE RATINGS:

PRESSURE:

SIZE:

API 609 / MSS SP-67 / MSS SP-68

API 609 / BS 5155

ASME B16.5

ASME B16.47

ASME B16.34

CLASS 150~CLASS 300

NPS 2"~36"

BILL OF MATERIAL(PARRIAL)

GEAR OPERATOR ELECTRICAL OPERATOR PNEUMATIC OPERATOR HYDRAULIC OPERATOR ETC. ARE AVAILABLE

NOTE: OTHER MATERIALS ARE AVAILABLE UPON REQUEST.

GASKET

PACKING

YOKE BOLT

SEAT

STEM

STANDARD

BODY

PART NAME LOW TEMPERATUREITEM

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

COVER

GLAND FLANGE

GLAND NUT

EYEBOLT

YOKE

GEAR

STAINLESS STEEL

ASTM A216 WCB ASTM A352 LCC

PTFE / RUBBER

ASTM A216 WCB

ASTM A216 WCB ASTM A216 WCB

ASTM A182 F6 AISI 4140 / 4340

SS304 / SS316+GRAPHITE

ASTM A193 B7 / B7M

GRAPHITE / PTFE

ASTM A193 B7/B7M ASTM A320 L7/L7M

ASTM A194 2H/2HM ASTM A194 7/7M

ASTM A216 WCB

ASSEMBLY

SEAT GLAND

20

19 BOLT

YOKE NUT ASTM A194 2H / 2HM

SPLINT COLLAR

COVER BOLT

SCREW

DISC

PIN ASTM A276 410

ASTM A216 WCB

CARBON STEEL

CARBON STEEL

ASTM A193 B7/B7M

CARBON STEEL

CARBON STEEL

ASTM A276 304

ASTM A352 LCC

STAINLESS STEEL

STAINLESS STEEL

ASTM A216 WCB

ASTM A320 L7/L7M

STAINLESS STEEL

ASTM A352 LCC

ASTM A193 B7/B7M

ASTM A194 2H/2HM

CARBON STEEL

ASTM A351 CF8M

ASTM A182 F316

ASTM A276 316

ASTM A351 CF8M

STAINLESS STEEL

STAINLESS STEEL

ASTM A351 CF8

ASTM A351 CF8

ASTM A194 8M

ASTM A193 B8M

ASTM A193 B8M

316 SS

ASTM A351 CF8M

ASTM A193 B8

ASTM A194 8

CARBON STEEL

SEALING FACE OVERLAY API TRIMS AVAILABLE

CLASS 150

NPS

DN

L

H

H1

W

WT(WR)

in

mm

mm

mm

mm

mm

Kg

2 2-1/2 3 4 5 6 8 10 12 14 201816 24 30 36

50 12510080 900750600400 450 50035030025020015065

43 54 574846 7157 64 9281 102 114 127 154 200165

115 201169135 145 513378221 314274 728676618585 1130980

5 8 10 12 14 8518 22 35 51 115 155 200

300 300 350 400 400

80 10090 114 132

250200 200 200 250 450 450 450 450

304180 252146 283 315 365 395 434

550 550

333 950595

WT(LR) Kg 7 10 12 15 18 10522 33 45 65 165 205 260 385 1100745

585 675

L

DOUBLE OFFSET BUTTERFLY VALVE – WAFER / LUG TYPE

CBUDWRGC

CBUDLRGC

CLASS 150

NPS in

mm

mm

mm

mm

mm

Kg

2 3 4 6 8 10 12 14 201816 24 30 36

50

108

115

80

300

12

100

127

169

114

400

23

80

114

145

100

350

15.4

900

330

1130

675

550

1157

750

318

980

585

550

816

600

267

728

434

450

408

400

216

585

315

450

186

450

222

618

365

450

234

500

229

676

395

450

277

350

190

513

304

250

143

300

178

378

283

250

108

250

165

314

252

200

73

200

152

274

180

200

50

150

140

221

146

200

33

L



1.MULTI-LAYER SEATS (FIRE SAFE

AND WELL USED IN HIGH OPERATING

TEMPERATURE)

2. COMBINATION OF METAL AND SOFT

SEATS (DUAL ADVANTAGES OF METAL

AND SOFT SEATS)

3. S.S.SEAT OR INTEGRAL OVERLAY SEAT

(FIRE SAFE AND WELL USED IN HIGH

OPERATING TEMPERATURE)

TYPE OF SEAT (METAL TO METAL):

DESIGN FEATURES:

DISC

SEAT GLAND

SEAT (SS+GRAPHITE

BODY

DISC

SEAT GLAND

SEAT (SS+PTFE

BODY

DISC

SEAT GLAND

SEAT(SS/STL

BODY

1

2

4

6

7

9

10

3

5

8

12

11

9

1316 1415

18

17

19

20

DN

L

H

H1

W

WT

DOUBLE OFFSET BUTTERFLY VALVE – FLANGED TYPE TRIPLE OFFSET BUTTERFLY VALVE

CBUDRFLC

GOOD FLOW REGULATING FUNCTION AND SEALING PERFORMANCE.

THE DISC CAN MOVE AWAY FROM THE SEAT FAST WHEN OPENING TO REDUCE THE FRICTION, AND THEN PROLONG

THE VALVE LIFE.

ANTI-BLOWOUT SHAFT AND FIRE SAFE DESIGN.

SEALING PRINCIPLE: TRIPLE OFFSET DESIGNS I.E. THE OFFSET BETWEEN THE STEM'S ROTATION AXIS AND THE

CENTERLINE OF VALVE BODY; AND THE OFFSET BETWEEN THE STEM'S ROTATION AXIS AND THE CENTERLINE OF

VALVE SEAT RING; AND THE OFFSET BETWEEN THE CENTERLINE OF VALVE SEAT RING AND THE CENTERLINE OF

VALVE BODY. THE RUBBER SEAT IS SQUEEZED BY THE DISC'S OUTER EDGE SLOWLY AND GRADUALLY DURING

ROTATION, WHICH FURTHER REDUCES THE FRICTION BETWEEN SEAT AND DISK, AND ENSURES THE TIGHT SEALING

RESULT.



STANDARDS:DESIGN AND MANUFACTURE:

FACE TO FACE DIMENSIONS:


NPS1/2"~24

NPS 26" ~36"

BW ENDS DIMENSIONS:

PRESSURE-TEMPERATURE RATINGS:

PRESSURE:

SIZE:

API 609 / MSS SP-67 / MSS SP-68

API 609 / BS5155

ASME B16.5

ASME B16.47

ASME B16.25

ASME B16.34

CLASS 150~CLASS600

NPS 2"~36"

BILL OF MATERIAL(PARTIAL)

GEAR OPERATOR, ELECTRICAL OPERATOR PNEUMATIC OPERATOR HYDRAULIC OPERATOR ETC. ARE AVAILABLENOTE: OTHER MATERIALS ARE AVAILABLE UPON REQUEST.

STANDARD

ASTM A216 WCB

SS+GRAPHITE/PTFE

ASTM A276 410

ASTM A216 WCB

CARBON STEEL

CARBON STEEL

ASTM A182 F6a

GRAPHITE/PTFE

ASTM A216 WCB

ASTM A216 WCB

ASTM A194 2H/2HM

ASTM A193 B7/B7M

ASTM A193 B7/B7M

SS+GRAPHITE/PTFE

CARBON STEEL

ASTM A216 WCB

ASTM A193 B7/B7M

ASTM A194 2H/2HM

CARBON STEEL

PART NAME

BODY

SEAT RING

PIN

DISC

SCREW

SEAT GLAND

STEM

PACKING

GLAND FLANGE

YOKE

GLAND NUT

EYEBOLT

COVER BOLT

GASKET

SPLINT COLLAR

COVER

YOKE BOLT

YOKE NUT

BOLT

GEAR

SEALING FACE OVERLAY

HIGH TEMPERATURE

ASTM A217 WC6

SS+GRAPHITE

ASTM A276 410

ASTM A217 WC6

STAINLESS STEEL

ASTM A182 F11

AISI 4140/4340

GRAPHITE

ASTM A217 WC6

ASTM A216 WCB

ASTM A194 4

ASTM A193 B16

ASTM A193 B16

SS+GRAPHITE

AISI 4140/4340

ASTM A217 WC6

ASTM A193 B16

ASTM A194 4

CARBON STEEL

ITEM

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

STAINLESS STEEL

ASTM A351 CF8M

SS+GRAPHITE/PTFE

ASTM A276 316

ASTM A351 CF8M

ASTM A193 B8M

ASTM A276 316

ASTM A182 F316

GRAPHITE/PTFE

ASTM A351 CF8M

ASTM A351 CF8

ASTM A194 8M

ASTM A193 B8M

ASTM A193 B8M

SS+GRAPHITE/PTFE

316 SS

ASTM A351 CF8M

ASTM A193 B8

ASTM A194 8

CARBON STEEL

ASSEMBLY

API TRIMS AVAILABLE

CLASS 300

CLASS 600

CLASS 150

NPS

DN

L

H

H1

W

WT(WR)

WT(LR)

in

mm

mm

mm

mm

mm

Kg

Kg

2

50

43

112

82

300

5

7

2-1/2

2-1/2

2-1/2

3

80

48

140

100

350

10

12

4

100

54

270

108

180

12

15

6

150

57

290

126

180

18

22

8

200

64

330

165

300

22

33

10

250

71

362

215

300

35

45

12

300

81

420

250

300

51

65

14

350

92

555

280

300

85

105

20

500

127

745

436

450

200

260

18

450

114

623

350

400

155

205

16

400

102

580

310

300

115

165

24

600

154

862

455

500

333

385

30

750

165

976

583

500

595

745

36

900

200

1121

675

550

950

1100

65

46

125

95

300

8

10

NPS

DN

L

H

H1

W

WT(WR)

WT(LR)

in

mm

mm

mm

mm

mm

Kg

Kg

2

50

43

143

80

300

10

15

3

80

48

165

103

350

27

30

4

100

54

290

110

150

30

40

6

150

59

330

186

300

50

60

8

200

73

368

211

300

85

100

10

250

83

490

245

400

135

160

12

300

92

495

290

450

190

230

14

350

117

636

320

760

280

370

20

500

159

690

460

760

610

685

18

450

149

675

410

760

495

620

16

400

133

663

352

760

370

480

24

600

181

848

525

760

900

1100

30

750

241

942

605

760

-

-

36

900

241

1010

670

1016

-

-

65

46

150

90

300

20

25

NPS

DN

L

H

H1

W

WT(WR)

WT(LR)

in

mm

mm

mm

mm

mm

Kg

Kg

2

50

43

143

90

310

10

15

3

80

54

460

180

300

27

30

4

100

64

476

192

300

30

40

6

150

78

500

222

400

60

75

8

200

102

533

245

610

91

120

10

250

117

558

256

610

168

190

12

300

140

595

310

760

230

290

14

350

155

695

380

760

300

395

20

500

216

800

468

760

650

780

18

450

200

745

420

760

525

680

16

400

178

719

388

760

395

500

24

600

232

875

530

812

980

1250

65

46

150

110

310

20

25

L

TRIPLE OFFSET BUTTERFLY VALVE TRIPLE OFFSET BUTTERFLY VALVE - WAFER/LUG TYPE

CBUTWRGC

CBUTLRGC



CLASS 300

CLASS 600

CLASS 150

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

108

112

82

300

12

3

80

114

140

100

350

15.4

4

100

127

270

108

180

23

6

150

140

290

126

180

33

8

200

152

330

165

300

50

10

250

165

362

215

300

73

12

300

178

420

250

300

108

14

350

190

555

280

300

143

20

500

229

745

436

450

277

18

450

222

623

350

400

234

16

400

216

580

310

300

186

24

600

267

862

455

500

408

30

750

318

976

583

500

816

36

900

330

1121

675

550

1157

65

112

125

95

300

13.5

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

150

143

90

310

45

3

80

180

460

180

300

82

4

100

190

476

192

300

125

6

150

210

500

222

400

191

8

200

230

533

245

610

247

10

250

250

558

256

610

413

12

300

270

595

310

760

576

14

350

290

695

380

760

664

20

500

350

800

468

760

1639

18

450

330

745

420

760

1117

16

400

310

719

388

760

971

24

600

390

875

530

812

2082

65

170

150

110

310

60

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

150

143

80

300

19

3

80

180

165

103

350

39

4

100

190

290

110

150

48

6

150

210

330

186

300

70

8

200

230

368

211

300

140

10

250

250

490

245

400

200

12

300

270

495

290

450

280

14

350

290

636

320

760

420

20

500

350

690

460

760

735

18

450

330

675

410

760

680

16

400

310

663

352

760

530

24

600

390

848

525

760

1235

30

750

450

942

605

760

-

36

900

510

1010

670

1016

-

65

170

150

90

300

29

CLASS 300

CLASS 600

CLASS 150

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

150

112

82

300

15

3

80

180

140

100

350

20

4

100

190

270

108

180

25

6

150

210

290

126

180

36

8

200

230

330

165

300

58

10

250

250

362

215

300

78

12

300

270

420

250

300

118

14

350

290

555

280

300

152

20

500

350

745

436

450

290

18

450

330

623

350

400

242

16

400

310

580

310

300

193

24

600

390

862

455

500

428

30

750

450

976

583

500

838

36

900

510

1121

675

550

1260

65

170

125

95

300

18

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

150

143

90

310

25

2-1/2

2-1/2

2-1/22-1/2

2-1/2

2-1/2 3

80

180

460

180

300

60

4

100

190

476

192

300

102

6

150

210

500

222

400

150

8

200

230

533

245

610

225

10

250

250

558

256

610

380

12

300

270

595

310

760

552

14

350

290

695

380

760

612

20

500

350

800

468

760

1539

18

450

330

745

420

760

998

16

400

310

719

388

760

916

24

600

390

875

530

812

1995

65

170

150

110

310

45

NPS

DN

L

H

H1

W

WT

in

mm

mm

mm

mm

mm

Kg

2

50

150

143

80

300

16

3

80

180

165

103

350

32

4

100

190

290

110

150

40

6

150

210

330

186

300

56

8

200

230

368

211

300

124

10

250

250

490

245

400

186

12

300

270

495

290

450

256

14

350

290

636

320

760

395

20

500

350

690

460

760

710

18

450

330

675

410

760

665

16

400

310

663

352

760

495

24

600

390

848

525

760

1200

30

750

450

942

605

760

-

36

900

510

1010

670

1016

-

65

170

150

90

300

22

L

TRIPLE OFFSET BUTTERFLY VALVE –FLANGED TYPE TRIPLE OFFSET BUTTERFLY VALVE – BUTT WELDED TYPE

CBUTRFGC CBUTBWGC

L



IN

2"

2-1/2"

3"

4"

6"

8"

10"

12"

14"

16"

18"

20"

24"

150Lb

N.m

45

55

68

100

215

372

552

811

1200

1630

2296

2870

3700

NPS

mm

50

65

80

100

150

200

250

300

350

400

450

500

600

IN

3"

4"

6"

8"

10"

12"

14"

16"

18"

20"

24"

30"

36"

150Lb

N.m

91

128

195

389

678

1045

1466

2052

2843

3535

6000

21900

31915

300Lb

N.m

155

220

463

1008

1615

2598

3503

5768

7705

9885

15968

46448

72968

600Lb

N.m

275

545

1295

2452

4338

6190

8263

11822

20305

25895

39900

NPS

mm

80

100

150

200

250

300

350

400

450

500

600

750

900

TORQUE VALUE CHART

CONCENTRIC BUTTERFLY VALVE TRIPLE OFFSET BUTTERFLY VALVE

INSTALLATION, MAINTENANCE AND OPERATING INSTRUCTION

BUTTERFLY VALVE

THE STATIC STRESS ANALYSIS

1. STORAGE

1.1 The seat, disc, stem and bushing of the butterfly valve should be coated with a silicone lubricant.

1.2 The disc should be opened (5º 7º) during transportation & storage.

1.3 Where applicable, the faces of each valve should be covered with cardboard, plywood or similar sturdy material to prevent damage to the seat face, disc edge or

butterfly valve interior.

1.3 Valves should be stored indoors with face protectors intact. Storage temperature ideally should remain in a range from +40°F to 85°F.

1.4 When valves have been stored for more than 3 months, open and close the valves. Repeat for every 3 months of storage.

1.5 Store valves so that no heavy loads are applied to the bodies.

2.VALVE INSTALLATION

2.1 Make sure the pipeline and pipe flanges are clean. Any foreign material such as pipe scale, metal chips, welding slag, welding rods, etc. can obstruct disc

movement or damage the valve.

2.2 Ensure that the entire rust preventive on the machined surface in the flow area is removed, before the valve is put in pipe-line.

2.3 Note the name plate details and arrow flow mark on valve body and install the valve in right orientation with respect to pressure gradient. Arrow on valve body

should point from high pressure side to low pressure side of the pipeline. Recheck valve pressure rating adequacy with respect to operating pressure.

2.4 Align the piping and then spread the pipe flanges so that the valve body can be easily placed between the flanges without contacting the pipe flanges.

2.5 Insert the valve between the flanges taking care not to damage the seat faces. Always pick the valve up by locating holes or by using a nylon sling around the

valve neck. IMPORTANT: Never pick the valve up by the actuator or operator as damage may occur.

2.6 Place the valve between the flanges, center it, and then span the valve body with all flange bolts. Do not tighten the bolts at this time. Carefully open the disc to

the full open position, ensuring that the disc does not make contact with the pipe I.D. Systematically remove any jack bolts on flange spreaders and hand tighten

the flange bolts. Very slowly close the valve disc to ensure disc edge clearance from the adjacent pipe flange I.D.

2.7 Operate the butterfly valve manually from full close to full open and full open to full close, with the operator hand wheel. Ensure that there is no undue resistance

/ friction in the operation. Ensure that the factory setting of Limiting Stopper Bolts in the Gear Box is not disturbed, for the respective limit positions. If so, adjust

the same.

2.8 Before connecting valve & pipeline flanges, ensure that they do not have parallel, angular and radial gaps. While fitting the valve in pipeline, ensure that

diagonally opposite bolts are simultaneously & uniformly tightened.

3.VALVE MAINTENANCE

1. Operate the valve from full open to full close to assure operability.

2. Check flange bolting for evidence of loosening and correct as needed.

3. Inspect the valve and surrounding area for previous or existing leakage at flange faces or shaft connections.

4. Check piping and/or wiring to actuators and related equipment for losseness and correct as needed.

Possibilities Causes Remedies

Valve opens only a few degrees

and stops (Itwill not open to the

full angle desired)

Leakage between disc and

valve seating

Leakage between valve

stem and packing

Switch can’t be used freely

1.Improper installation .The valve is improperly aligned.

2.Mating pipe internal or other obstruction is interfering with disc.

3.Actuator not properly installed.

1.There is muddy sediments accumulated on seal surfaces.2.Worn out or scored seal surface.

3.Close on the misplace.

1.Packing cap has not screwed on tightly.2.Packing wears out.

3.The contact surface between valve stem and packing wear out.

1.Seal surface is deformed too heavily.2.Failure of the actuator.

1.Loosen the flange bolts, realign the valve with flanges and

retighten the flange bolts to correct torque per ANSI requirements.2.Pipe does not meet standards and spacers may be required

Any pipeline or disc obstruction must be removed.

3.Refer to actuator adjustment manual.1.Clean muddy sediments.2.Repair or replace seal surface .

3.Adjust the close position of the actuator

1.Tighten the nuts on the cap to get a uniform pressure betweencap and packing.

2.Add suitable amount of packing.

3.Replace stem or repair the contact surface of valve stem.

1.Adjust the bolts on it.2.Replace or repair it.

CWT Butterfly Valve

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Transcript of CWT Butterfly Valve