SP-1470-CLike getting two pumps in one!

DOUBLE PUMPSVIKING–BUILTDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPSDOUBLE PUMPS

Viking double pumps are ideally suited to many applications in the industrial and mobile markets. Two independent pumping units are operated from a single power source to reduce equipment costs and simplify installation. System flexibility is maintained as each pumping unit can be operated at a different pressure without affecting the other. A total of 96 different double pump combinations are available to match your requirements.

A special version of the double pump has an integral hi-lo circuit. This arrangement has the advantage of providing a fast cycle time and at the same time reduces the HP required by unloading the high volume pump when it is not needed.

A double pump with an integral hi-lo circuit basically consists of a high volume and low volume set of pumping elements, abuilt-in unloading valve and a built-in check valve. The hydrauliccircuit is arranged to provide rapid advance, feed and rapid return. The total volume from both sets of pumping elements is delivered until the work load is contacted. At this point, system pressure increases causing the unloading valve to function. Flow from the high volume set of pumping elements is directed back to the suction side of the pump at minimum pressure. The low volume set of pumping elements continues to deliver flow for the high pressure feed part of the operation. Both sets of pumping elements deliver flow on the return stroke.

VIKINGPUMP

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

2

GP - 05 18 25 - E 0 - B

* FOR TOTAL PUMP CAPACITY ADD THE GPM RATING OF EACH SECTION:(1825 = 0.7 + 1.0 for TOTAL of 1.7 GPM @ 1750 GPM)† COUNTERCLOCKWISE ROTATION NOT AVAILABLE FOR DESIGN SERIES C

SPECIFICATIONS

DOUBLE PUMP MODEL NUMBERING CODE

SHAFT ROTATION(VIEWED FROM SHAFT END)O = CLOCKWISE1 = COUNTER CLOCKWISE†

G = HEAVY DUTY

H = HEAVY-DUTY WITH HI-LO CIRCUIT

*SECOND PUMP CAPACITY (LARGER)

PUMPSECTION

NOMINAL CAPACITY@ 1750 RPM DISPLACEMENT MAXIMUM SPEED

GPM L/MIN IN³/REV CM³/REV RPM R/MIN0417 .06 .24 .008 .13 3600 36000418 .13 .49 .017 .28 3600 36000425 .18 .68 .024 .39 4000 40000435 .25 .96 .033 .54 4000 40000450 .36 1.37 .048 .79 4000 40000470 .51 1.92 .067 1.10 4000 40000518 .70 2.7 .094 1.54 3600 36000525 1.0 3.8 .139 2.27 4000 40000535 1.4 5.3 .194 3.18 4000 40000550 2.0 7.6 .277 4.54 4000 40000570 2.8 10.6 .388 6.36 4000 40000510 4.0 15.1 .548 8.98 3600 36000514 5.6 21.2 .761 12.47 3600 36000729 2.8 10.6 .390 6.39 3600 36000741 4.0 15.1 .548 8.98 4000 40000758 5.6 21.2 .765 12.53 4000 40000782 8.0 30.3 1.096 17.96 4000 40000711 11.2 42.4 1.530 25.07 3600 36000716 16.0 60.6 2.192 35.92 3600 3600

* Note: Ductile iron construction and combinations of the 04 and 05 pump sections are available, consult factory.

GEAR O.D.

DESIGN SERIES

*FIRST PUMP CAPACITY (SMALLER)

EXTERNAL GEARPUMP PRINCIPLE DRIVE EQUIPMENT

B = FOOT MOUNTED BRACKET

D = BASE MOUNTED DIRECT DRIVE

M = C-FLANGE MOTOR DRIVE

M4 = FOUR-BOLT MOTOR DRIVE

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

3

PUMP SELECTION

To determine whether a pump is rated for continuousor intermittent duty, use Figures 2, 3 and/or 4 to arrive at the number of units for each pumping section. These values should be based on the maximum pressure expected from each pumping section during simultaneous operations. Add the units for each pumping section together. Use this total number of units and Figure 1 to arrive at a service cycle rating.

EXAMPLE: GP-052510 with the 25 section at 1500 PSIG and the 10 section at 200 PSIG. Figure 3 shows the 25 section yields 88 units and the 10 section yields 50 units, a total of 138 units. Figure 1 shows that the pump is rated for continuous duty.

FIGURE 1SERVICE CYCLE TOTAL UNITS

Continuous150 Maximum GP-04 and GP-05

1050 Maximum GP-07

Intermittent300 Maximum GP-04 and GP-05

2100 Maximum GP-07

FIGURE 2

FIGURE 3

FIGURE 4

The solid portion of each pump section line indicates the continuous operation parameters of that pump section.

The dashed portion indicates the intermittent parameters.

250

200

150

100

50

0 500 1000 1500 2000

04700450

0435

0425

0418

0417

2500

PUMP DISCHARGE PRESSURE – PSIG

UN

ITS

07160711 0782

0758

0741

0729

0 500 1000 1500 2000 2500

100

200

300

400

500

600

700

800

900

1000

1100

250

200

150

100

50

0 500 1000 1500 2000 2500

300

0518

0525

0535

0550057005100514

PUMP DISCHARGE PRESSURE – PSIG

UN

ITS

PUMP DISCHARGE PRESSURE – PSIG

UN

ITS

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

4

HORSEPOWER REQUIREMENTS

FIGURE 5 FIGURE 6

FIGURE 7 FIGURE 8

Figures 5, 6, 7, 8, 9 and 10 relate required horsepower to discharge pressure for each pump section. Total horsepower required for the double pump is found by adding the requirements for each pump section.

EXAMPLE: Using the pump from the first example (page 3) operating at 1750 RPM (Figure 7), the 25 section yields a horsepower requirement of 1.1 and the 10 section yields a requirement of 0.6. Total horsepower required is 1.7.

1.00

.75

.50

.25

0 500 1000 1500 2000

04700450

0435

0425

0418

0417

2500

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

1.00

.75

.50

.25

0 500 1000 1500 2000

04700450

0435

0425

0418

0417

2500

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

1.00

.75

.50

.25

0 500 1000 1500 2000

0514 0510

0570 0550

0535

0525

2500

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

1.00

.75

.50

.25

0 500 1000 1500 2000 2500

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

0518

0514 0510 0570 0550

0535

0525

0518

3450 RPM1750 RPM

3450 RPM1750 RPM

VISCOSITY: 150 SSU

VISCOSITY: 150 SSU

BASED ON 5 IN. - HG.

BASED ON 5 IN. - HG.

VISCOSITY: 150 SSU

VISCOSITY: 150 SSU

BASED ON 5 IN. - HG.

BASED ON 5 IN. - HG.

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

5

GENERAL INFORMATION

FIGURE 9 FIGURE 10

STANDARD CONSTRUCTIONQuality materials and precision manufacturing are used in every pump with the following materials as standard:■ Head, Casing and Bracket — cast iron■ Gears — Heat-treated steel (GP-04 and GP-07) — Heat-treated powder metal (GP-05)■ Shafts — Case hardened steel■ Bearings — Anti-friction, needle■ O-Rings and Lip Seal — Buna-NFor variations of the above construction, consult the factory for price and delivery.

ROTATIONThe double pumps are directional, and rotational information (viewed from shaft end) is essential. If rotation information is omitted from an order, the pump will be furnished with clockwise rotation. A bi-directional rotation feature is available as an option.

DISCHARGE PRESSUREThe hydraulic gear pumps are especially designed for operating many types of hydraulic equipment which require pressures up to 2500 PSI with intermittent service.

INLET PRESSURESizing the inlet piping so the fluid velocity is less than 5 ft./sec. will insure satisfactory operation of the pump. Positive inlet pressure is limited to 15 PSI maximum.

TEMPERATURE RANGEThe Viking hydraulic gear pump will function properly up to a maximum of 225°F. The recommended operating temperature for hydraulic service is between 50° and 150°F.

HYDRAULIC OILThe best performance can be obtained by utilizing an industrial grade hydraulic oil. Operating viscosity should be between 100 and 300 SSU. Temperature should not exceed 150°F. for optimum life of the hydraulic oil.

PUMP LIFEPump life is a factor of many parameters, mainly pressure, speed and duty cycle. Temperature, contamination and type of hydraulic oil also have a definite effect. For actual life expectancy, consult the factory with specific conditions.

FILTERTo extend maximum pump life and insure the highest pump operating efficiency, keep the system clean and free of contaminating elements. On a hydraulic system it is recommended that a return line filter be installed having a maximum of 10 micron rating.

FACTORY TESTINGEvery pump is performance tested. In addition, each pump is backed by a full factory warranty.

OPTIONAL CONSTRUCTION FEATURESContact our sales department for recommendations and special construction features available. In addition to the model number, all options must be specified in writing on the order.

APPLICATION INFORMATIONTo assist us in supplying a pump which will provide optimum service, the following information should be furnished: capacity needed, discharge pressure, inlet conditions, name of fluid, viscosity and operating temperature.

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

1750 RPM

VISCOSITY: 150 SSU

BASED ON 5 IN. - HG.

PUMP DISCHARGE PRESSURE – PSIG

HO

RSE

POW

ER IN

PUT

– B

HP

1750 RPM

VISCOSITY: 150 SSU

BASED ON 5 IN. - HG.

0716 0711 0782

0758

0741

0729

0716 0711 0782

0758

0741

0729

8

6

3

1

0 500 1000 1500 2000 2500

2

4

5

7

9

10

11

12

16

12

6

2

0 500 1000 1500 2000 2500

4

8

10

14

18

20

22

24

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

6

PUMP DIMENSIONS, Series GP-04, GP-05

Pump Model Overall Length(L)

GP-041818 GP-051818 4.98GP-041825 GP-051825 5.06GP-041835 GP-051835 5.16GP-041850 GP-051850 5.30GP-041870 GP-051870 5.50

GP-051810 5.80GP-051814 6.20

GP-042525 GP-052525 5.12GP-042535 GP-052535 5.22GP-042550 GP-052550 5.38GP-042570 GP-052570 5.58

GP-052510 5.88GP-052514 6.28

GP-043535 GP-053535 5.32GP-043550 GP-053550 5.48GP-043570 GP-053570 5.68

GP-053510 5.98GP-053514 6.38

GP-045050 GP-055050 5.62GP-045070 GP-055070 5.82

GP-055010 6.10GP-055014 6.52

GP-047070 GP-057070 6.02GP-057010 6.32GP-057014 6.72GP-051010 6.62GP-051014 7.02GP-051414 7.42

HEAVY-DUTY DOUBLE PUMP

HEAVY-DUTY DOUBLE PUMP WITH HI-LO CIRCUIT

† WHEN OPERATING 10 OR 14 SECTION PUMPS ABOVE 1800 RPM OR HANDLING LIQUIDS WITH VISCOSITIESABOVE 300 SSU, CONSULT FACTORY FOR PORT RECOMMENDATIONS.

* ½” NPT SUCTION PORT IS STANDARD ON ALL PUMP MODELS EXCEPT THOSE WITH A 14 SECOND SECTION(GP-05xx14-CO). THEN ¾” NPT PORT IS STANDARD.

SEPARATE SUCTION& DISCHARGE PORTS

COMMON SUCTION,SEPARATE DISCHARGE PORTS

SEPARATE SUCTION,COMMON DISCHARGE PORT

STANDARD OPTIONAL OPTIONAL

†

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

7

PUMP DIMENSIONS, Series GP-07

PumpModel/Size

Overall Length(L)

Port LocationsA B C

GP-072929 9.33 3.42 5.96 3.17GP-072941 9.45 3.42 6.08 3.17GP-072958 9.62 3.42 6.25 3.17GP-072982 9.86 3.42 6.49 3.17GP-072911 10.19 3.42 6.82 3.17GP-072916 10.69 3.42 7.32 3.17GP-074141 9.57 3.54 6.20 3.29GP-074158 9.74 3.54 6.37 3.29GP-074182 9.98 3.54 6.61 3.29GP-074111 10.31 3.54 6.94 3.29GP-074116 10.81 3.54 7.44 3.29GP-075858 9.91 3.71 6.54 3.46GP-075882 10.15 3.71 6.78 3.46GP-075811 10.48 3.71 7.11 3.46GP-075816 10.98 3.71 7.61 3.46GP-078282 10.39 3.95 7.02 3.70GP-078211 10.72 3.95 7.35 3.70GP-078216 11.22 3.95 7.85 3.70GP-071111 11.05 4.28 7.68 4.03GP-071116 11.55 4.28 8.18 4.03GP-071616 12.05 4.78 8.68 4.53

HEAVY-DUTY DOUBLE PUMP

HEAVY-DUTY DOUBLE PUMP WITH HI-LO CIRCUIT

† WHEN OPERATING 11 OR 16 SECTION PUMPS ABOVE 1800 RPM OR HANDLING LIQUIDS WITH VISCOSITIESABOVE 300 SSU, CONSULT FACTORY FOR PORT RECOMMENDATIONS.

SEPARATE SUCTION& DISCHARGE PORTS

COMMON SUCTION,SEPARATE DISCHARGE PORTS

SEPARATE SUCTION,COMMON DISCHARGE PORT

STANDARD OPTIONAL OPTIONAL

†

VIKING PUMP • A Unit of IDEX Corporation • Cedar Falls, IA ©2005

SERIES GP-04, GP-05, GP-07VIKING DOUBLE PUMPS

8

FOOT-BRACKET MOUNTEDA sturdy cast iron bracket, cast and machined by Viking, assures accurate fit with the pump. Mountings are available for all sizes of Double and Hi-Lo Double pumps.

C-FLANGE MOTOR MOUNTED UNITViking Double and Hi-Lo Double pumps in combination Viking Double and Hi-Lo Double pumps in combination with the Nema “C” flange bracket and flexible with the Nema “C” flange bracket and flexible coupling provide an easily assembled, compact unit. coupling provide an easily assembled, compact unit. The cast iron adapter bracket is accurately machined The cast iron adapter bracket is accurately machined for precise shaft alignment.

FOUR-BOLT MOTOR MOUNTED UNITIntegral pump and motor units help reduce on-site assembly costs and provide maximum compactness where space is at a premium. The 4-bolt mounting can be provided with AC or DC motors. Available for Series GP-04 and GP-05 only.

GP-05 “B” DRIVEGP-05 “B” DRIVE

GP-07 “M” DRIVE

GP-04 & GP-05 “M4” DRIVE

MOUNTING OPTIONS

GP-07 “B” DRIVE

Viking Double and Hi-Lo Double pumps offer efficient gear set combinations allowing maximum pressure with minimum horsepower. Hi-Lo Double pumps include a highly-efficient sequencing valve and a heat-treated guided poppet check valve.

Rev. 5/05