Manual For Twin Screw Pump [PDF]

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Contents Foreword-------------------------------------------------------------------------------1 Section I: Summary------------------------------------------------------------------1 Section II: Receiving, Stevedoring and Storage-------------------------------2 Section III: Installation--------------------------------------------------------------3 Section IV: Lubricating-------------------------------------------------------------4 Section V: Heating & Cooling-------------------------------------------------------5

Section VI: Starting, Running and Stopping-----------------------------------5 Section VII: Notes on Handling High-viscosity Liquid---------------------6 Section VIII: Routine Maintenance----------------------------------------------6 Section IX: Common Breakdowns & Troubleshooting----------------------7 Section X: How to Dismantle------------------------------------------------------8 Section XI: Table of Wearing Parts-----------------------------------------------9 Section XII: Table of Shaft Bearing & Seal----------------------------------------9 Section XIII: Construction of Twin Screw Pump---------------------------------10

Section XIV: Outline Dimension-------------------------------------------------14

Foreword The Manual is for guiding the installation, operation and maintenance of 2G(2GM), 2H(2HE&2HM) and 2W(2WE&2WM) series twin screw pumps. We expect the under-mentioned instructions could be understood well and accurately followed by user. For any questions beyond this manual, please contact our technical department directly.

Section I: Summary 2G, 2H and 2W twin screw pump is a kind of Positive Displacement Rotary Pump, which can handle the liquid with viscosity below 3000mm2/s(cSt). The pump consists of two spindles rotating in opposition. During pump’s working, a pair of screws fixed on two shafts get in mesh and form seal cavity against pump’s inner chamber. With rotating of two spindles, liquid in seal cavity moves axially and is transferred from inlet stably and continuously to outlet of the pump. 2G single-suction twin screw pump and 2HM,2WM double-suction twin screw pump are designed with external bearing and pump’s chamber is separated from bearing chamber by mechanical seal and framework oil seal, therefore which can transfer liquids with or without lubricity as well as liquids with high-viscosity. Material normally used for rotary ring and stationary ring of mechanical seal: TC(or ceramic) and Graphite. 2HE and 2HM twin screw pumps are designed with internal bearing. Pump’s chamber is conjunct with bearing chamber and they are mainly for transferring liquids with lubricity. Material normally used for rotary ring and stationary ring of mechanical seal: A. TC and TC. B. TC(or ceramic) and Graphite. Pump’s spindle is made up of screws and separated shaft processed by high-strength alloy steel or stainless steel for meeting the working conditions upon big power and big torque. Different metals such as Nodular Cast Iron, Nitrided Steel and Stainless Steel are selected for screws to meet the requirement to transfer different liquids. Timing gear is adopted to pass the power from driving shaft to driven shaft, which enables two spindles to rotate synchronously during their meshing, therefore low wear and big reliability. Special construction is designed at pump’s inlet to ensure uniform flow of the suctioned liquid and low pressure loss, therefore the pump has small NPSHr. And position of inlet and outlet can keep enough liquid inside the pump when it stops working, so the pump is good self-priming. Wetted parts of the pump should be selected according the chemical property of the liquid to pump: for liquids without erosion or unclean liquids, to use general steel or iron; for liquids with erosion or clean liquids, to use suitable stainless steel; for explosive or flammable liquids, such as gasoline, toluene, to use bronze; for liquids with small solids, to use high-rigidity nitrided steel; for special requirement for material, please indicate when ordering. 1-1 Notice for Safety User is obligatory to correctly install the pump and operate safely. User must take all necessary measures to ensure the execution of safety requirement from manufacturer and industry standard for １

positive displacement pump (twin screw pump) 1. Select proper carne and enough-strength steel cable when installing and stevedoring 2. When testing pipe’s pressure and flushing pipe, the pump MUST BE SEPARTED. Or the seal of pump will be damaged and incurred leakage. 3. Ensure the pipe to be swept strictly and be unblocked before first starting. 4. Fasten the plug screw in drain hole to prevent from polluting leakage 5. Select suitable coupling and guard and fix them well. 6. Ensure safety valve to work under proper capacity and pressure. 7. Make sure the pump works under right condition, otherwise, it can cause serious damage of equipment and bring danger to operator’s safety. 8. The pump can only be maintained after it’s stopped. 9. The pump is strictly forbidden to work without medium liquids, or the screws, bearings and mechanical seals will be damaged. 1-2. Warranty 1. Within warranty period, we will provide repair or replace unqualified parts at no charge for the pump’s malfunctions caused by workmanship. We do not take any liability for the damage caused by incorrect installation or operation. 2. Our liability to the loss caused by defect material or workmanship is limited to replacing or repairing damage spare parts and we do not take legal liability for the loss caused directly or indirectly by using our products or any other reasons, such as time-loss, possession-loss and safety-loss. In general, we will not take any responsibility for the damage or hurt to other equipment, machine, building, articles or personnel caused by user’s installing and using our product. 3. Warranty is invalid under following situations: a. Spare parts are dismounted, repaired or replaced without formal approval by our technical department, quality inspection department and sales department. b. Pump’s breakdown caused by contingency, operator’s careless operation or improper working condition. c. To pump the liquids not stated in contract, which might erode the pump or impair pump’s running. 4. The warranty is NOT applicable to (a) corrosion failure & abrasion failure (b) natural disaster failure (c) failure by absence of correct maintenance (d) other charge for filed-repair and replacement of spare parts.

Section II: Receiving, Stevedoring and storage 2-1. Receiving 1. The equipments should be put in a dry place without shinning and raining .The time of laying them in the open air should be not exceed one month, and our company has no responsibility for the damage caused by improper storage. 2. User should immediately check up the equipments against any loss or damage on receipt and inform shipper and our company timely for any problem. Claim for compensation must be made immediately after checking of received equipments. ２

2-2. Stevedoring Lifting pump: infix one end of steel cable into lifting hole of casing or bearing support and infix the other end of steel cable into hoop of motor or hoop indicated on base plate. 2-3. Storage and Maintenance The pump must be preserved well as follows if laid up for a long time after installation. 1. Store the pump in a dry and ventilated place, and replace seals in a year. 2. Fill pump chamber with machine oils and seal inlet and outlet to prevent the dust and impurities from the entering chamber. 3. Coat the non-painted metal surfaces with antirust. 4. Cover the pump and motor with waterproof coating.

Section III: Installation The under-mentioned instruction is a practicable guide for user’s installing pump. Only when the following instruction is followed strictly or with other practical experience on installation can the twin screw pump work stably and reliably with long life.

3-1. Location The installation site should close to oil pool. Pump room should be dry and has enough space for installing and repairing. One-meter space around pump should be left for repair, better still bigger space if possible. 3-2. Base The pump should be installed on firm cement base whose thickness is no less than 30-50cm, subject to the size of pump set. And square hole (12x12cm) should be set ahead in cement base according to the position of stone bolt of pump set. Put the pump set on base after the cement is solidified and take the second grouting after stone bolt fixed. If the pump is installed on steel deck or other buildings, it should be installed on them directly and to be as close to primary component as possible, besides to add support to avoid deforming and vibrating. Required area for installation and position for stone bolt should follow the outline dimension supplied by our company. 3-3. Installation Fix the pump set on base with stone bolt and check up the fastening between pump, motor and base. Check and adjust the alignment of coupling: turn coupling by hand to confirm if it rotates smoothly. Pease refer to the following demonstration as two methods to align coupling: 3-4. Pipe System 1. Clean the pipe before installing and get rid of iron rust, ESW and dirt inside pipe. Twin screw pump is good self-priming and is easily blocked by the dirt sucked into chamber from pipe, so it is important to clean out the pipe, especially pipe at inlet before mounting the pipe with flanges of in/outlet. 2. Try to use short and straight pipe to reduce resistance and use big-curvature pipe. 3. The size of pump should be identical with that of the pump’s in/outlet. If possible, bigger-size pipe ３

is preferable to reduce resistance of oil-sucking. 4. Use brace to support pipe and valves, preventing pump from bearing pipe’s weight. 5. NPSHa of suction pipe should be bigger than NPSHr of pump, otherwise the pump can’t work well 6. Pressure test and performance test have been done before delivery. User should keep pump apart while doing test and flush for pipe, otherwise the pump’s seal will be damaged, causing leakage. 3-5. Accessory of Pipe System 1. Filter. Install the filters at the suction-pipe to keep impurities from entering pump. Standard of filter screen: 20-30 mesh /inch. Filter area of filter should be 3-5 times larger than sectional area of pipe. For handling high-viscosity liquids, the filter area should be extended moderately: the standard should be 10-20 mesh/in and filter area of filter should be over 5 times larger than sectional area of pipe. The filter should be cleaned regularly and cleaning period should depend on cleanliness of medium liquids. 2.

Check Valve. Check valve or globe valve is usually mounted with discharge pipe to prevent back flow from impacting pump after pump stalls. When several pumps are installed in parallel, only with check valve can pumps are started respectively. In case of long pipe line limited to installing field, the check valve can be mounted on the end of suction pipe to reduce resistance of oil-sucking and improve pump’s self-priming. (pump is suggested to be installed close to oil tank to shorten the pipe line) 3. Safety Valve. Both of single-suction and double-suction twin screw pump are mounted with safety valve. Opening pressure is five times the rated working pressure of pump. 4. Pressure Gauge. Compound gauge and pressure gauge can be fixed at flanges of inlet and outlet to monitor pump’s working condition and standard of screw hole is M14x1.5. Measuring range of pressure gauge is 1.5-2 times the rated working pressure of pump.

Section IV: Lubricating 2HE&2WE series double-suction twin screw pump with internal bearing: timing gears and bearing to be lubricated by medium liquids, no lube oil required. 2HM&2WM series double-suction twin screw pump external bearing: timing gear and bearing near the gear box to be lubricated by 30# engine oil; bearing near bare shaft to be lubricated by Lithium Base Grease or 1# Calcium Base Grease. 2G series single-suction twin screw pump: timing gear to be lubricated by 30# engine oil; bearing to be lubricated by Lithium Base Grease or 1# Calcium Base Grease. Oil in gear box should be timely replenished to “midline” of oil level and be replaced every 3-6 months. Gear box should be cleaned out every 3-6 months. Please find following interval for replacing oil in gear box for reference: Interval of replacing oil in gear box: Accumulated running time of new pump: 250 hours Intermittent running: every accumulated: 500-1000 hours Continuous running: every accumulated: 2000 hours Gear and bearing will be damaged when pump works with absence of oil in gear box. ４

Section V: Heating & Cooling To meet the requirement to handle various liquids, heating and cooling devices are mounted in 2HM&2WM series double-suction twin screw pump, and user can infuse steam or cooling water if required.(please indicate when order) Steam jacket is at the foot of pump, heated by steam or heat conducting oil. It is usually required when handling high-viscosity liquid which is to be solidified at normal temperature. Pressure of steam or heat conducting oil is usually below 0.6MPa. Cooling box is at the cover of gear box and it cool the gear box with circulating water. Pressure of cooling water is usually below 0.3Mpa and its flow rate is 2-3m3/h. Cooling device is usually needed when handling flammable, explosive liquids or volatile liquids. Stainless steel gear box is required if sea water is used for circulating water (please indicate when order).

Section VI: Starting, Running and Stopping 6-1. Examining Before Starting To ensure pump’s working safely, it is very necessary to examine the whole system carefully before starting for the first time as following: 1. Examine the situation of installation (referring to 3-3), especially the fastening of stone bolt and alignment of coupling (turn coupling by hand and confirm if it rotates smoothly) 2. Examine whether there is enough medium liquids inside pump and it is strictly forbidden to start pump when there is no or less liquid in pump. 3. Examine if the oil in gear box is enough. Overfull engine oil will cause overheating of the gear box and lacking will damage gear and bearing. 4. Examine the rotation direction of pump, which should be in accordance with the indication in name plate while inching pump. Conventional rotation direction of the shaft: clockwise facing to shaft (if not specified). 5. Examine if the inlet and outlet are in correct position. 2G series pump: the inlet is on the top; 2HE&2HM series pump: facing to shaft, the inlet is at right-side; 2WE&2WM: outlet is on the top. (special requirement excluded) 6. Examine the situation of opening and closing of valves. 6-2. Starting 1. Open all the valves in the suction & discharge pipe line 2. Start motor(engine). 6-3. Running 1. Check up if there is any abnormal noise and vibration during pump’s test running. Any of these problems must be solved immediately. 2. Check up if there is abnormal temperature-rising with pump, bearing support and gear box ( normally not exceed 75oC). Surface temperature of bearing support and gear box is allowed up to 75oC and invariable temperature within this range is the best indicator for pump’s running well. If the temperature rises suddenly, it indicates the problems with bearing or gear box, which needs to be checked immediately. ５

3. Check up if there is any leakage with mechanical seal. 4. Pump is usually thought to be qualified after one-hour test running without problem, and then it can be put into use. 6-4. Stopping Cut off power supply and close valves in pipe line.

Section VII: Notes on Handling High-viscosity Liquids 7-1. 7-2.

7-3.

7-4.

7-5.

Following operations must be abided by when the pump is used for handling high-viscosity or solidifying liquids to avoid any breakdown of seal or damage to pump. Try to set the oil tank above the pump’s inlet (flooded) to avoid failure to sucking in oil. Use filer of 10-20mesh/in and of filtering area over 5 times section area of pipe. Try to user bigger size pipe than pump’s inlet to reduce resistance against sucking oil. Heat the pump casing and filter with steam or heat conducting oil before starting pump until the viscosity of residual medium inside pump becomes low enough, then trigger the coupling by hand to confirm if it can rotate without block. Pump circularly related solvent for 3-5 minutes in order to clean the residual medium and ready for next job. Prevent steam from entering pump while cleaning pipe line, which will damage seal. Check up regularly if there is any leakage, block and noise with pipe line as well abnormal rising of power absorbed and then repair them timely. Clean up filter regularly to ensure smooth oil-suction.

Section VIII: Routine Maintenance 8-1. Daily Maintenance 1. 2. 3.

4. 5.

Check whether the engine oil in gear box is enough before staring pump and replenish it if necessary. Check if there is any abnormal noise and vibration. Check if there is leakage when pump is working For mechanical seal, it is allowed to have a little leakage (2~5 drops every minute) and it must be exchanged or repaired when leakage increases largely. Check regularly if the indicating value of compound gauge and pressure gauge is in normal range. Please refer to “Notes on Handling High-viscosity Liquids” for maintaining pump to handle high-viscosity liquid.

8-2. Monthly Maintenance 1. Open the valves and run the pump for a few minutes for the pump not working over one week. 2. Examine all the valves at the suction and discharge pipe. 3. Check whether the engine oil in gear box is enough; Clean gear box or replace oil every 3-6 months or refer to Section

IV: Lubricating

4. Keep all the nuts on the base and all the bolts fastened. Check the alignment of the coupling and turn it by hand to confirm if it rotates smoothly. ６

8-3. Yearly Maintenance 1. Examine if the nuts on base and all the bolts are fastened. Check the alignment of the coupling and turn it by hand to confirm if it rotates smoothly. 2. Clean up pump, replace grease in bearing and engine oil in gear box. 3. Examine the capacity and pressure of the pump. Overhaul the pump or replace damaged parts if capacity and pressure declines largely and do not dismantle the pump if still in good performance.

Section IX: Common Breakdowns & Troubleshooting Phenomena

Reason

Solution

1.Incorrect rotation direction or valve closed

No discharge or less

No pressure or low Oil leakage with seal

Abnormal noise or vibration Safety fails to function

Motor is overloaded

1.Reverse rotation direction or open valve 2.No medium liquid in pump chamber 2.Infuse medium into chamber 3. Air leakage with suction pipe 3.Check connections and seal them 4.The suction pipe NOT immersed in oil 4.Check the suction pressure and raise the oil level of tank 5.The suction head is too long 5.Measure the suction pressure raise the oil level of tank 6.Insufficient or blocked filter 6.Replace or clean filter and add filtering area 7.Too low pressure set for safety valve or it’s 7.Readjust safety valve’s pressure or clean blocked it 8.Viscosity of medium is too high 8.To decrease viscosity by heating 9.Too high vacuum or pressure caused by 9. Clean pipe blocked pipe 10. Pump is worn or damaged 10. Repair or replace 1. Too low pressure set for safety valve or it’s 1. Readjust safety valve’s pressure or clean blocked it 2.Leakage with pipe 2.Check the suction pipe 3. Pump is worn or damaged 3. Repair or replace Damaged rotary ring or stationary ring of Repair or replace mechanical seal, or damaged oil seal 1.Improper assembling 1.Overhaul 2.Pump’s shaft and motor’s shaft are 2. Readjust the alignment non-concentric 3. The suction pipe is too thin or too long, or 3.Readjust with too many elbows 4. Unclog pipe and filtering screen 4. The suction pipe or filter is blocked 5.Gas-leaking 5. Check and repair 6.Too big resistance is with discharge pipe 6.Examine if the valve and pipe are blocked 7.Fasteners are loosened 7.Tighen the fasteners 8.Damaged bearing and gear 8. Check and replace 1.Too high pressure is set 1.Turn down the pressure 2.Trim is blocked 2.Dismantle and clean it 1.Discharge pressure surpasses the designated 1.Re-select pump value 2.Rising viscosity of medium due to low 2.Heat the medium temperature 3.Improper assembling 3.Reassemble the pump 4.Rotating shaft is bended 4.Straighten or replace shaft 5.Blocked in discharge pipe 5.Overhaul ７

Section X: How to Dismantle It is required to drain the medium liquid residual in pump chamber and the lube oil in gear box before replacing mechanical seal, framework oil sea or repairing pump, and then pump can be dismantled. Procedure to dismantle 2H&2W series pump is as below: 10-1. When leakage occurs at the front end of the pump, 1. Dispart the pump with motor and detach the coupling and plain key 2. Remove the bearing cap from front-casing cover; remove the round nuts and gaskets of driving and driven shafts; remove the nuts of pump body and front-casing cover. 3. Screw enough-length hex bolt into two holes at front-casing cover and pump out the front-casing cover. 4. Replace damaged mechanical seal and framework oil seal. 10-2. When leakage occurs at the back end of the pump, 1. Detach gear box, remove gears and spacers; remove nuts on pump and back-casing cover; get down back-casing cover 2. Replace damaged mechanical seal, framework oil sea and bearing. 10-3.

Put enough 1# Calcium Base Grease or Lithium Base Grease on oil seal and in bearing chamber when reassembling. Notice to check if oil seal lip is inside-out and if O-ring is cut after mounted.

10-4.

Clean out carefully pump chamber, screws and possible burrs and scratches at each joint, assemble the pump as it be with gaskets. It will be approved if the driving shaft rotates smoothly upon being turned by hand or wrench.

10-5.

Put enough clean lube oil into gear box and infuse adequate medium liquid in to pump chamber.

10-6.

Connect pump with coupling. Bifid couplings should be in good alignment and pins should can be inserted the holes of bifid couplings successfully. After connection, turn the coupling by hand in 1 or 2 rounds and if found to rotate smoothly then the pump can be started.

Procedure to dismantle 2G series single-suction twin screw pump: disconnect pipes—loosen the nuts connecting pump body and bearing support—get down pump body for repair Due to complicated construction and multi-sealing faces, twin screw pump might have oil-leakage if assembled improperly, even out of order. Therefore, it is required to be care of the procedure of disassembling and assembling, better still if finding accomplished technician to do the job.

Section XI: List of Wearing Parts ITEM Screws Cartridge of Safety Valve Spring of Safety Valve Coupling Pin Mechanical Seal Oil Sea

MATERIAL QT400-18、38CrMoAl 2Cr13、ZQAl9-4 45# Steel 2Cr13 60Si2MnA 3Cr13 rubber nylon TC--GRAPHITE NBR, FPM ８

QTY

REMARKS

4（2）

As per order

1 1

As per pressure

8, 10 2-4 1-5

See Section XII See Section XII

Section XII: Table of Shaft Bearing & Seal Shaft Bearing Type

O-ring (GB3452.1) Safety Pump Valve

Oil Sea GB13871

Mechanical Seal

Front

Back

2G58

7004C

7004C

18×30×7

YM102-25

2G68

3205

NU205

22×38×7

U112-30

2G98

3207

NU207

30×50×7

U112-40

2G128

3208

NU208

35×56×12

U112-50

2G148

3309

NU309

U112-50

2G166

3311

NU311

50×70×8 50×70×8 65×90×10

2WM2

3205

NU304

30×42×7

2HE280

3305

-

YM124-25 U112-30 U112-35

30×50×7 35×50×8

U112-30、35

-

YM102-40

35×56×12 40×62×8

U112-35、40

-

U112-45

40×62×8 45×62×8

U112-40、45

-

U112-50

50×70×8 55×75×8

U112-50、55

-

U112-50

50×70×8 65×90×10

U112-65

-

U112-65

65×90×10 80×110×10

U112-80

-

U112-80

80×110×10 95×120×12

YM124-95

2HM280

2WM3

46.2×2.65

10.6×2.65

3206

28×2.65 10.6×2.65 NU305 54.5×3.55

3207 3306

NU306 32.5×2.65 65×3.55 12.5×2.65

2HE560 2HM560

2WM4

2HE800 2HM800

2WM5

3307 3208

NU307 32.5×2.65 73×3.55 21.2×2.65

3309

NU309 42.5×2.65 92.5×3.55 21.2×2.65

2HE1400 2HM1400

2WM6

2HE2500 3311 2HM2500

NU311

112×3.55 34.5×2.65

2WM7

2HE4200 3314 2HM4200

NU314 140×3.55 34.5×2.65

2WM8

2HE7000 7317B

NU317

170×5.3

U112-65

2HM7000

2WM9

2HM9800

2WM10

7318B

NU318

180×5.3

85×110×12 105×130×12

M74N-105

2HM18000

2WM11

7322B

NU322

224×5.3

105×130×12 125×150×12

M74N-125

９

Section XIII: Construction of Twin Screw Pump A. 2H&2W series double-suction twin screw pump

B. 2G series single-suction twin screw pump

１０

Section XIV: Outline Dimension 1. 2G&2GM series single-suction twin screw pump (please find final dimensional drawing before construction)

TYPE

MOTOR

H

Y90 2G58

2G68

2G98

Y100

136

L1

L2

685

464

300

730

508

350

794

553

350

814

563

360

Y112

750

Y100 Y112

172

Y132

929

641

420

L3

L4

A

B

147

68

205

290

188

102

250

305

500

203

110

Y132

172

1033

675

450

158

123

Y160

238

1163

780

550

161

115

Y180

248

1228

822

600

156

111

340

340

1150

803

600

252

102

260

260

1280

862

256

106

1345

905

277

127

340

340

Y200

1410

946

650

300 300

110

165

125

200

160

20

300

298

148

360

360

313

163

400

400

977

Y250

338

1565

1072

700

336

186

450

450

Y200

316

1464

1142

800

223

171

390

390

2G148 Direction of in/outlet is inverse to that in the above structure chart 1344

150

20

340

1480

1935

85

18

313

386

115

300

Y225

Y250

15

340

720

Y180

D1

n-m 4-M1 2

250

1059

288

D

290

248

Y160

d

225

Y160

Y132

2G128

L

1000

234

172

460

2G166 Direction of in/outlet is inverse to that in the above structure chart

１１

18

18

4-M1 6

4-M1 6

8-M1

Inlet：PN1.6、DN125 Outlet：PN1.6、DN100

460

Inlet：PN1.6、DN150 Outlet：PN1.6、DN125

6

2. 2HE&2HM series twin screw pump with side-inlet & side-outlet (please find final dimensional drawing before construction)

Model

Calefaction dimension

Assembling Graph of pumps

Motor L1

L2

Y132

1198

900

Y160

1328

1010

L3

L4

L5

L6

370

b1

b2

355

400

n-d

p

Inlet and outlet

h1

h2

h3

R

DN

D1

D2

Z-D

495

305

135

G1/2"

80

200

160

8-18

589

390

165

G1/2"

100

235

190

8-22

175

G3/4"

125

270

220

8-27

G1"

150

300

250

8-27

G1"

200

360

310

12-27

G1"

250

425

370

12-30

G1"

300

460

410

12-24

G1"

400

480

515

16-26

2HE280 80

2HM280

0

Y180

1353

Y132

1259

900

130

Y160

1389

1025

112

6-20

430

425

320

475

1010

430 320

0

260

300

340

385

320

360

2HE560 2HM560

400 Y180

1454

1070

4-20

18

130

360

0

Y160

1487

1100

110

2HE800

Y180

1552

1135

130

30

2HM800

Y200

1617

1175

88

500

50

Y225

1687

1206

63

540

80

Y180

1660

1220

210

400

Y200

1725

1430

120

500

Y225

1795

1320

80

580

Y250

1882

1390

94

400

Y280

1952

1510

80

450

95

Y200

1899

1387

113

580

90

Y225

1969

1446

143

580

60

440

4-20

400

10 420 400

440

35

340

385

45

520

400

95

420

460

80

450

500

500

550

684

6-20

420

4-20

476 756

190

2HE1400 2HM1400

460

480

6-20 816

250 525

8-25

826

490

260 535

450

881

220

6-20

2HE2500 Y250

2054

1512

106

650

95

540

490

2HM2500

555 Y280

2174

1634

117

Y315

2346

1750

155

Y250

2238

1650

700

80

520

560

45

625

670

520

560

545

590

931 480 500 75

2HE4200 Y280

2358

1770

8-25

270 580

160 515

8-25

650

8-25

780

1061

660

305

1115

700

325

1140

725

350

2HM4200

2HE7000

Y315

2528

1880

160

520

75

625

670

Y280

2475

1885

72

580

200

545

590

2HM7000

Y315

2675

1995

158

2HE9800

Y280

2556

2475

175

2HM9800

Y315

2834

2650

250

560

110

620

670

680

740

405 700

8-30

330

１２

1305

825

345

1325

845

365

800

3. 2WE&2WM(2HM/W) series double-suction twin screw pump with side-inlet & upside-outlet (please find final dimensional drawing before construction)

Outline Dimension

Size of In/outlet

Oil/gas Hole

Type Motor L

L1

L2-L4

A

B

n-k

H

H1

Y112 1027

690

L2 500

260 230

4-12

474 240

2WM2 Y132 1122

757

L2 550

280 245

4-14

503 269

Y160 1265

895

L2 650

330 290

4-14

Y132 1187

817

L2 600

300 270

2WM3 Y160 1317

955

L2 600

Y180 1382

998

D

E

F j-d1(d2) m

g

20

-15

28

-24

551 317

28

-42

4-14

516 275

23

-13

330 290

4-14

566 325

33

-82

L2 700

360 320

4-14

586 345

33

-54

893

L2 600

315 285

4-14

560 310

21

-26

2WM4 Y160 1415 1017

L2 700

340 300

4-14

582 332

33

-38

Y180 1480 1060

L2 700

360 320

4-14

602 352

38

-60

Y132 1285

50

65

165 125

4-M16 (φ18)

185 145

R1

R2

G1/2

G1/4

G1/2

G1/4

G1/2

G1/4

8-M16 (φ18)

１３

80

200 160

Outline Dimension

Size of In/outlet

Oil/gas Hole

Type Motor L

L1

L2-L4

A

B

n-k

H

H1

Y160 1525 1092

L2 800

360 320

4-14

692 362

Y180 1590 1135

L3 450

380 340

6-14

692 362

2WM5

D

E

F j-d1(d2) m

g

28

0

33

25

100 235 190

8-M20 (φ22)

Y200 1655 1176

L3 500

400 360

6-18

736 406

43

55

Y225 1725 1235

L3 500

440 400

6-18

761 431

43

25

Y180 1738 1244

L3 500

420 380

6-18

796 436

27

53

Y200 1803 1284

L3 500

440 400

6-18

796 436

37

33

2WM6 Y225 1848 1344

L3 550

460 420

6-18

821 461 150 300 250

47

53

Y250 1958 1409

L3 600

490 440

6-18

866 506

54

71

Y280 2078 1534

L3 650

550 500

6-18

900 540

54

58

Y200 1910 1379

L3 580

514 470

6-18

947 516

17

90

Y225 1955 1438

L3 580

524 480

6-18

947 516

22

60

2WM7 Y250 2065 1505

L3 650

550 500

6-18

967 536 200 360 310

12-M24 35 (φ27)

98

Y280 2185 1627

L3 700

580 530

6-18 1001 570

50

86

Y315 2385 1738

L4 500

640 590

8-24 1056 625

64

81

Y250 2230 1630

L3 700

610 560

6-18 1076 610

25

120

2WM8 Y280 2350 1752

L3 750

640 590

6-18 1076 610 250 425

12-M27 40 (φ30)

109

Y315 2250 1863

L4 550

680 630

8-24

1111 645

60

129

Y280 2540 1884

L4 550

710 660

8-24 1265 740

25

153

2WM9 Y315 2740 2045

L4 600

750 690

8-24 1285 760 300 485 430

45

148

Y355 3190 2174

L4 650

810 750

8-24 1305 780

16-M27 75 (φ30)

158

Y315 2860 2167

L4 650

810 750

8-27 1486 850

27

222

Y355 3310 2296

L4 700

870 810

8-27 1506 870

57

232

2WM10

37

8-M24 (φ27)

400 580 525

１４

R1

R2

G3/4

G1/2

G3/4

G1/2

G1

G1/2

G1

G1/2

G1

G1/2

G11/2

G3/4