GPT Surface Pump Catalog

Positive Displacement Plunger Pump Packages

Engineered Application’s for

Water Injection / Disposal

Jet Pumping 

Fluid Transfer 

Rental or Purchase 

Plunger Pump Specifications

Global Petroleum Technologies, provides a reliable single acting positive displacement reciprocating plunger pump package with direct drive or belt drive designed and fabricated with ancillary equipment to provide low maintenance service. The plunger pump is a proven design that is supported with large inventories of spare parts around the world because its parts are 100% interchangeable with many pumps in the industry. This workhorse design has been providing reliable service for decades.   

General Specifications 

 

Fluid end and valve covers: Aluminum Bronze 

Stuffing box: Stainless steel 

 

Stuffing box internals: Aluminum bronze 

Plungers: Tungsten carbide 

 

Packing: Kevlar spring loaded 

Intermediate rods: Stainless steel 

 

Lubrication: Splash type if speed above 200 rpm 

100 Horsepower Triplex Pump

  • Stroke Length: 4″
  • Rated: 100 horsepower at 450 rpm
  • Rated Plunger Load (lbs): 6595 lbs
  • M fluid end: Suction: 3″ ANSI 150# FF, Discharge: 1-1/2″ API 5000#
  • RTJ H fluid end: Suction: 3″ ANSI 300# FF, Discharge: 1-1/2″ API 5000# RTJ

 

 

 

 

100-M Fluid End

 

 

 

 

Plunger size, in.

Plunger area in²

Max.Pressure

BPD/RPM

200 rpm 

250 rpm

300 rpm

350 rpm

400 rpm

450 rpm

1-3/4

2.4053

2744

4.2858

857

1071

1286

1500

1714

1929

1-7/8

2.76

2388

4.92

984

1230

1476

1722

1968

2214

2

3.1416

2101

5.5978

1120

1399

1679

1959

2239

2519

 

 

 

 

100-H Fluid End

 

 

 

 

1-1/4

1.2272

5000

2.1866

437

547

656

765

875

984

1-1/2

1.7672

3735

3.1487

630

787

945

1102

1259

1417

1-3/4

2.4053

2744

4.2858

857

1071

1286

1500

1714

1929

165 Horsepower Triplex Pump

  •  Stroke Length: 5″
  • Rated: 165 horsepower at 400 rpm Rated Plunger Load (lbs.): 9800 lbs.
  • M fluid end: Suction: 4” ANSI 150# FF, Discharge: 2” API 5000# RTJ
  • H fluid end: Suction: 3” API 2000# RTJ, Discharge: 2” API 5000# RTJ

 

 

 

 

165- M Fluid End

 

 

 

 

Plunger size, in.

Plunger area in²

Max. 

Pressure

BPD/RPM

150 rpm 

200 rpm

250 rpm

300 rpm

350 rpm

400 rpm

2

3.1416

3120

6.9972

1050

1399

1749

2099

2449

2799

2-1/4

3.9761

2465

8.8558

1328

1771

2214

2657

3100

3542

2-1/2

4.9088

2000

10.9331

1640

2187

2733

3280

3827

4373

2-3/4

5.9396

1650

13.2291

1984

2646

3307

3969

4630

5292

 

 

 

 

165- H Fluid End

 

 

 

 

1-1/2

1.7672

5000

3.9359

590

787

984

1181

1378

1574

1-3/4

2.4053

4075

5.3575

804

1071

1339

1607

1875

2143

1-7/8

2.76

3550

6.153

923

1231

1538

1846

2154

2461

2

3.1416

3120

6.9972

1050

1399

1749

2099

2449

2799

200 Horsepower Triplex Pump

  • Stroke Length: 5″
  • Rated: 200 horsepower at 400 rpm 
  • Rated Plunger Load (lbs.): 11870 lbs.
  • M fluid end: Suction: 4” ANSI 150# FF, Discharge: 2” API 5000# RTJ
  • H fluid end: Suction: 3” API 2000# RTJ, Discharge: 2” API 5000# RTJ 

 

 

 

 

200-M Fluid End

 

 

 

 

Plunger size, in.

Plunger area in²

Max.

Pressure

BPD/RPM

150 rpm 

200 rpm

250 rpm

300 rpm

350 rpm

400 rpm

2-1/4

3.9761

2988

8.8558

1328

1771

2214

2657

3100

3542

2-1/2

4.9088

2419

10.9331

1640

2187

2733

3280

3827

4373

2-3/4

5.9396

2000

13.2291

1984

2646

3307

3969

4630

5292

 

 

 

 

200-H Fluid End

 

 

 

 

1-1/2

1.7672

5000

3.9359

590

787

984

1181

1378

1574

1-3/4

2.4053

4938

5.3572

804

1071

1339

1607

1875

2143

1-7/8

1.76

4300

6.153

923

1231

1538

1846

2154

2461

2

3.1416

3780

6.9972

1050

1399

1749

2099

2449

2799

300 Horsepower Triplex Pump

  • Stroke Length: 5″
  • Rated: 300 horsepower at 400 rpm 
  • Rated Plunger Load (lbs.): 10700 lbs.
  • M fluid end: Suction: 6” NSD 600# RTJ, Discharge: 3” NSD 5000# RTJ
  • H fluid end: Suction: 6” ANSI 600# RTJ, Discharge: 2” ANSI 2500# RTJ

 

 

 

 

M Fluid End

 

 

 

 

Plunger size, in.

Plunger area in²

Max.

Pressure

BPD/RPM

150 rpm 

200 rpm

250 rpm

300 rpm

350 rpm

400 rpm

2

3.1416

3400

11.6620

1749

2332

2916

3499

4082

4665

2-1/4

3.9761

2690

14.7597

2214

2952

3690

4428

5166

5904

2-1/2

4.9088

2185

18.2219

2733

3644

4555

5467

6378

7289

2-3/4

5.9396

1800

22.0485

3307

4410

5512

6615

7717

8819

 

 

 

 

H Fluid End

 

 

 

 

1-1/2

1.7672

5000

6.5599

984

1312

1640

1968

2296

2624

1-3/4

2.4053

4450

8.9287

1339

1786

2232

2679

3125

3571

1-7/8

2.76

3875

10.25

1537

2050

2663

3075

3588

4100

2

3.1416

3400

11.6620

1749

2332

2916

3499

4082

4665

Ancillary Equipment

  • The following ancillary equipment should be considered when selecting a plunger pump application. 

1.    Suction Stabilizer: The suction stabilizer is highly recommended for all plunger pump applications to minimize vibration and cavitation that can result in frequent failures. The suction stabilizer minimizes effects of acceleration head piping requirements that are based on pump operating conditions, suction pipe length, diameter and design. The suction stabilizer has an inlet and outlet connection the same or larger than the pump suction inlet and is designed to handle the full capacity of the pump.

2.    Discharge Dampener: The intensity of low frequency pulsations related to plunger pump discharge flow is greatly decreased with a properly designed pulsation dampener. Discharge piping problems can result in expensive failures that create environmental issues. GPT offers technical assistance to diagnose pipe vibrations and failures and designs new systems for reliable trouble-free service. 

3.    Pressure safety valve (PSV): All plunger pumps must be equipped with an emergency pressure relieve valve that releases pressure in the event of a valve closure or system or piping failure. 

4.    Shut off valves: Suction and discharge piping should be equipped with shut off valves of equal diameter and pressure rating of the pump. Full opening ball valves are common in this application.

5.    Drain valves: Drain valve on the suction and discharge are required to drain the pump when servicing. The valve can also serve for installation of suction and discharge pressure gauges or transmitters. Needle valves are commonly used in this application. 

6.    By-pass valve: A by-pass loop and shut off valve is required on multiple pump installations to allow a pump to start up under no load so lubricant can get to load carrying surfaces. 

7.    Check valve: A check valve is recommended in multiple pump installations to keep high pressure fluid from the pump when shut down.

8.    By-Pass Pressure Control Valve: Application where constant pressure is critical to operation such as in jet pumping, a by-pass pressure control valve should be installed to release fluid not required by the jet pump and absorb lift discrepancies in continuous operation. These valves should by-pass less than 1000 bpd fort optimum life.  

9.    Flow Meter: Turbine flow meters can be added to the discharge of the pump to monitor flow rates. 

10.  Instrumentation: The following are the most common instrumentation on pump packages. 

Discharge pressure switch gauge or transmitter Suction pressure switch gauge or transmitter

Oil level switch gauge

Oil Temperature switch gauge or transmitter

Pump Vibration switch gauge or transmitter

Gear Reducer Vibration switch gauge or transmitter 

Horizontal Pump System Specification

Global Petroleum Technologies provides complete horizontal pumping systems (HPS) complete with installation and technical assistance to insure reliable service. GPT engineers have years of experience designing and installation complete process systems as well as operating and repairing HPS units. That experience results in technical support to provide minimum down time and maintenance cost. 

 

HPS units do not have the casing diameter restrictions that limits the ESP, so GPT choses pump with the greatest diameter shafts to provide greater support. Torque chambers can be equipped with mechanical seals, cooling or support system to insure reliable service with minimum down time.  

HPS Specifications

Model

Target Capacity, BPD

Target  Pressure Discharge/ Suction

Capacity BPD/ rpm

Pump OD

NRV3800

6,000

4000/ 50

4700 bpd@ 2910 rpm

6300 bpd @ 3880 rpm

6.77

NP

10,000

2500/ 50

7900 bpd @ 3640 rpm

10,100 bpd @ 4660 rpm

5.35

 

HPS equipment include industrial electric motor, thrust chamber, centrifugal pump, accessories and instrumentation. The pump is rated at 3600 rpm. 

Stages: Powder technology mixes raw materials in order to obtain specific type of stages with special features.  

Table Abrasion resistance 
Abbr.Full nameDescrption
AR1Abrasion Resistant 1

For fluid containing solids up to 175 ptb (500 mg/I)

Note: Applicable for all Floater pumps and all pumps of NR and NT series

 

Pump Shaft: The shaft material is selected according required power at maximum flow rate.

stages

Shaft material and yield strength:

S8Stainless Steel(785 MPa)
S11Stainless Steel(1080 MPa)
S13Stainless Steel(1275 MPa)
S14Stainless Steel(1370 MPa)
S16Stainless Steel(1570 MPa)
M8Monel Alloy(785 MPa)
I8Inconel Alloy(785 MPa)
I11Inconel Alloy (1080 MPa)
I13Inconel Alloy (1275 MPa)
I14Inconel Alloy(1370 MPa)

 

Coupling

The motor coupling considered for conventional HPS units (electric motor) connects and transmits torque from electric motor to thrust chamber. The coupling is selected based on motor power and shaft sizes. This coupling provides high reliability with simplified serviceability.  

The coupling selected for this application is GRID COUPLING.

Thrust Chamber

The thrust chamber was designed to absorb the axial thrust generated by fluid displacement in dynamic conditions. In the other hand, transmits torque and power from electric motor to pump. 

 

In this thrust chamber model, the axial thrust generated is absorbed by bearing located in the rear side of the thrust chamber.  

The chamber suction is designed according ASME B16.5 standard, it has a short shaft that connects thrust chamber with first pump.  The mechanical seal is mounted on thrust chamber shaft and its main roll is isolation of the fluid from environment. The “short shaft” design expedites installation and uninstallation of the mechanical seal.  

Suction Chamber

The suction chamber is designed according ASME B16.5 standard, it has a short shaft that connects thrust chamber with first pump. 

The mechanical seal is mounted on thrust chamber shaft and its main roll is isolation of the fluid from environment.  

The “short shaft” design expedites installation and uninstallation of the mechanical seal.

Skid

The Skid will hold the HSPS components. A suitable structural analysis let us to obtain robust frame design with provisions for dampening vibrations that typically occur over time, additionally this will support the demanding applications.

The modular skid design allows easily accommodate to changing duty conditions or the redeployment of an existing HSPS unit for an entirely different application. 

The extensions skid and pump support designs give to specific equipment the versatility to cover new operating conditions and to avoid replacing all the components.

Electric Motors

Industry standard electric foot mounted motors are used as the primary driver for the Horizontal Pumping Systems. 

The operator should indicate the following specifications 

  • Supply voltage: Common: 480- VAC
  • Supply frequency: Common 60 hertz
  • Motor phase: Common 3 phase
  • Temperature class: 
  • Class: Group: and Division: Common: Class 1 group C&D Div. 2 (TEFC)
  • Insulation class: Common F 

Equations, Conversion and Useful Information 

  • 1 Cubic meter per day = 8.38641436  Fluid barrels per day.
  • 1 Barrel = 159 liters = 42 gallons
  • 1 Bpd = .159 cubic meters pe day
  • 1 Barrel = 5.61458
  • 1 Horsepower -0.7457 Kilowatts
  • HP = Torque x RPM / 5252
  • GOR: 1 scf/bbl = 0.18 m3/m3
  • Hydraulic horsepower = (pressure differential x bpd) /58,800

 

Net Positive Suction Head for GPT Plunger Pumps

NPSHR = Function of Pp + Pv + Pf – Pa + Ha

Where

  • NPSHR: Net Positive Suction Head Required
  • Pa: Atmospheric pressure in psia (+/- 14 psia)
  • Pv: Vapor Pressure of the fluid, in psia
  • Pf: Pressure drop due to friction in suction piping and fittings, in psia (normally below .1 psig= 14.1 psig)
  • Ha: Acceleration head in feet. (see calculation below)
  • Pp: Pressure required by pump above vapor pressure to fill pump with acceptable efficiency, in psi. A factor of pump internals such as valve springs, internal passages etc…) The pump manufacturer specifies 3.5 psig = 17.5 psia

Acceleration Head: Ha= (CLNQ) / D2

  • C: Triplex = .000598, C: Quintuplex = .000362
  • L: Suction tubing length in feet
  • N: rpm pump speed
  • Q: gpm pump capacity at operating speed
  • D: suction tubing diameter