Flowserve ME User Manual

Page 19

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ME USER INSTRUCTIONS ENGLISH 71576287 - 02/13

Page 19 of 36

flowserve.com

DN

Flange

Forces (daN)

Moments (m.daN)

DN

Flange

Forces (lbf)

Moments (lbf.ft)

Fy

Fz

Fx

F

My

Mz

Mx

M

Fy

Fz

Fx

F

My

Mz

Mx

M

V

e

rt

ic

a

l

d

is

c

h

a

rg

e

150

160

200

180

310

45

60

80

110

6"

360

450

405

698

332

443

591

812

200

215

265

240

415

85

100

125

180

8"

484

596

540

934

627

738

923 1329

250

270

335

300

520

125

145

180

260

10"

608

754

675 1170 923 1070 1329 1919

300

320

400

360

625

170

200

240

355

12"

720

900

810 1406 1255 1476 1772 2621

350

375

465

420

730

220

255

310

455

14"

844 1046 945 1643 1624 1882 2288 3359

400

430

530

480

835

275

320

390

570

16"

968 1193 1080 1879 2030 2362 2879 4208

450

485

600

540

940

340

390

480

705

18"

1091 1350 1215 2115 2510 2879 3543 5204

500

540

665

600

1040 410

470

580

850

20"

1215 1496 1350 2340 3027 3470 4282 6275

H

o

ri

z

o

n

ta

l

s

u

c

ti

o

n

,

150

180

160

200

315

45

60

80

110

6"

405

360

450

709

332

443

591

812

200

240

215

265

415

85

100

125

180

8"

540

484

596

934

627

738

923 1329

250

300

270

335

520

125

145

180

260

10"

675

608

754 1170 923 1070 1329 1919

300

360

320

400

625

170

200

240

355

12"

810

720

900 1406 1255 1476 1772 2621

350

420

375

465

730

220

255

310

455

14"

945

844 1046 1643 1624 1882 2288 3359

400

480

430

530

835

275

320

390

570

16"

1080 968 1193 1879 2030 2362 2879 4208

450

540

485

600

940

340

390

480

705

18"

1215 1091 1350 2115 2510 2879 3543 5204

500

600

540

665

1040 410

470

580

850

20"

1350 1215 1496 2340 3027 3470 4282 6275

Forces and moments values are applied to the
whole flanges and not flange-by-flange. For their
sharing out on the pump flanges, refer to standard
NFCR 13 931.

Ensure piping and fittings are flushed

before use.

Ensure piping for hazardous liquids is

arranged to allow pump flushing before removal of
the pump.

4.5.2 Suction piping

4.5.2.1 Design of a flooded suction line
The suction line must be as short and direct as
possible, never mount an elbow directly on the inlet
flange of the pump.

Non-return valve

Valve

Continuous
flow valve

Flooded suction configuration

a) Avoid sharp elbows or sudden narrowing. Use

convergent

20° (total angle).

b) Arrange the piping so that there are no air

pockets (no bulges).

c) If high points cannot be avoided in suction line,

provide them with air relief cocks.

d) If a strainer is necessary, its net area should be

three or four times the area of the suction pipe.

e) If an inlet valve is necessary, choose a model

with direct crossing.

Do not tighten flanges before the final

check (see § 4.5.4).

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