Pump Archives - PT. Kakas Nurain Falah

31Oct, 2002

Inductive Pump

Mechanical pumps may be submerged in the fluid they are pumping or be placed external to the fluid.

Pumps can be classified by their method of displacement into positive-displacement pumps, impulse pumps, velocity pumps, gravity pumps, steam pumps and valveless pumps. There are three basic types of pumps: positive-displacement, centrifugal and axial-flow pumps. In centrifugal pumps the direction of flow of the fluid changes by ninety degrees as it flows over an impeller, while in axial flow pumps the direction of flow is unchanged.

Positive-displacement pumps

Lobe pump internals A positive displacement pump makes a fluid move by trapping a fixed amount and forcing (displacing) that trapped volume into the discharge pipe. Some positive-displacement pumps use an expanding cavity on the suction side and a decreasing cavity on the discharge side. Liquid flows into the pump as the cavity on the suction side expands and the liquid flows out of the discharge as the cavity collapses. The volume is constant through each cycle of operation.

Positive-displacement pump behavior and safety

Positive-displacement pumps, unlike centrifugal, can theoretically produce the same flow at a given speed (rpm) no matter what the discharge pressure. Thus, positive-displacement pumps are constant flow machines. However, a slight increase in internal leakage as the pressure increases prevents a truly constant flow rate.

A positive-displacement pump must not operate against a closed valve on the discharge side of the pump, because it has no shutoff head like centrifugal pumps. A positive-displacement pump operating against a closed discharge valve continues to produce flow and the pressure in the discharge line increases until the line bursts, the pump is severely damaged, or both.

Positive-displacement types

A positive-displacement pump can be further classified according to the mechanism used to move the fluid:

Rotary-type positive displacement: internal or external gear pump, screw pump, lobe pump, shuttle block, flexible vane or sliding vane, circumferential piston, flexible impeller, helical twisted roots (e.g. the Wendelkolben pump) or liquid-ring pumps
Reciprocating-type positive displacement: piston pumps, plunger pumps or diaphragm pumps
Linear-type positive displacement: rope pumps and chain pumps

A gear pump uses the meshing of gears to pump fluid by displacement. They are one of the most common types of pumps for hydraulic fluid power applications. The gear pump was invented around of year 1600.

Gear pumps are also widely used in chemical installations to pump high viscosity fluids. There are two main variations: external gear pumps which use two external spur gears, and internal gear pumps which use an external and an internal spur gear (internal spur gear teeth face inwards, see below). Gear pumps are positive displacement (or fixed displacement), meaning they pump a constant amount of fluid for each revolution. Some gear pumps are designed to function as either a motor or a pump.

As the gears rotate they separate on the intake side of the pump, creating a void and suction which is filled by fluid. The fluid is carried by the gears to the discharge side of the pump, where the meshing of the gears displaces the fluid. The mechanical clearances are small— in the order of 10 μm. The tight clearances, along with the speed of rotation, effectively prevent the fluid from leaking backwards.

The rigid design of the gears and houses allow for very high pressures and the ability to pump highly viscous fluids.

Many variations exist, including helical and herringbone gear sets (instead of spur gears), lobe shaped rotors similar to Roots blowers (commonly used as superchargers), and mechanical designs that allow the stacking of pumps. The most common variations are shown below (the drive gear is shown blue and the idler is shown purple).

Applications

Petrochemicals: Pure or filled bitumen, pitch, diesel oil, crude oil, lube oil etc.
Chemicals: Sodium silicate, acids, plastics, mixed chemicals, isocyanates etc.
Paint and ink.
Resins and adhesives.
Pulp and paper: acid, soap, lye, black liquor, kaolin, lime, latex, sludge etc.
Food: Chocolate, cacao butter, fillers, sugar, vegetable fats and oils, molasses, animal food etc.

Rotary positive-displacement pumps fall into 5 main types:

Gear pumps – a simple type of rotary pump where the liquid is pushed around a pair of gears.
Screw pumps – the shape of the internals of this pump is usually two screws turning against each other to pump the liquid
Rotary vane pumps
Hollow disk pumps (also known as eccentric disc pumps or Hollow rotary disc pumps).
Vibratory pumps or vibration pumps

Default Width dan Height di Tag Marquee Gear Pump Eaton PA5RD66 Eaton 25500-RSC Eaton 25501-RSA Eaton 25501-RSC Eaton 25502-RSB Eaton 25503-RSC Eaton 25503-RSD Eaton 25504-LSC Eaton 25504-RAK Eaton 25505-LSA Eaton 25505-RSC Eaton 25507-LSA Vickers 5001417-001 Vickers 5001418-001 GD5 Gear pump GEAR PUMP SERIES L2 PA Gear pump Eaton PB1LK66 PB Gear pump Eaton PC1RM66 PC Gear pump Eaton PHB19LA11 PHB Gear pump Vickers 02-102110 PVH074R13AA10A250000001A F1AB010A Vickers 02-102070-1 V20-1S13S-62A11 Vickers 02-125648-N 45VQTCS60A-2203CA-20R PUMP Vickers 708-0002-032 VMQ125S010A00100AAAANR00 A032 External-gear pump KF 2.5...630 Fuel oil pump BT/BTH TG Bloc 15-50 TG Bloc 23-65 TG Bloc 58-80 TG Bloc 86-100 TG MAG 58_80 TG MAG 15_50 TopGear Mag, Internal gear pumps Diaphragm pump Double-diaphragm pump Bearing Gear Pump Gear Pump Vicking BHP Hydraulic Gear Pump Nucleo Hydraulic Gear Pump JAGUAR PHB-20 Gear Pump Hydraulic Hyva Bushing Gear Pump GP3T Series PTO Gear Pump PTO Piston Pumps GP4 Series PTO Dump Pump GP110 Series Koshin GL Koshin GC Koshin FA dan FR Koshin MF Koshin SB (hand pump) APP Kenji JSB PULSAFEEDER CHEMTECH X100-003 PULSAFEEDER CHEMTECH X100-007 PULSAFEEDER CHEMTECH X100-015 PULSAFEEDER CHEMTECH X100-024 PULSAFEEDER CHEMTECH X100-030 CNP CDLF 2 CNP CDLF 3 CNP CDLF 5 CNP CDLF 8 CNP CDLF 10 CNP CDLF 12 CNP CDLF 16 CNP CDLF 20 CNP CDLF 32 CNP CDLF 42 CNP CDLF 65 CNP CDLF 85 CNP WQ CNP TD Inline CNP CDMF 3 CNP CDMF 5 CNP CDMF 10 CNP CDMF 15 CNP CDMF 20 CNP CDMF 32 CNP CDMF 42 CNP CDMF 65 CNP CDMF 85 CNP SJ Submersible Deepwell Franklin Electric HCP A-05A HCP A-05A F HCP A-05B HCP A-05B F HCP A-05L HCP A-05L F HCP A-21 HCP A-21 F HCP A-31 HCP A-31 F HCP AN-22 HCP AN-22 F HCP AN-23 HCP AN-23 F HCP AN-32 HCP AN-32 F HCP AN-33 HCP AN-33 F HCP AN-43 HCP AN-43 F HCP AN-35 Showfou CVQ Speck Pumpen VH VU VZ EBARA GP DSZ3 DSC3 VY/VZ HS HZ CN KS SS/SSD VPCS VPCH UCW SXB SXH FSS IFW CNA SQPB LPDA FSDA GSO GSD GS GSS DL DF DS/DVS QDC GP40 GP 50 GP 65 LVM EVM 4BHS DML CDX EVMS GPE Pump GPE US Pump KRACHT GmbH Gravel Pump Dredge Pump Johnson Pump Vickers Horizontal Pump Froth Slurry Pump Water Pump Centrifugal Pump Ace-In-A-Hole AMT AquaBoost AquaCharge American Granby Ante-Seize Berkeley Blue Angel Brady Burks Charge N' Flow ChemFlo CTS CLA-VAL Conery Crane Drainosaur Ecosub Flint and Walling Flo Control Flojet Flomax Franklin Electric Gorman Rupp Goulds Water Technology Green Leaf Grundfos Heller Aller Honda Hudson Valves Hydrotronic Intermatic Irrigator Jabsco Kalas Leader Liberty Little Giant MP MTH Mercoid Myers Oasis Oberdorfer OilTector Omnivore OTS Pearl Pacer Pedrollo Pentair Pony Power-Flo Protek RainPerfect Ranger Rule Rule-A-Matic Rustler SJE Rhombus Simer StaRite Strataflo SuperBrute SuperMax Topp Water Wizard Watts Wellmate Wessel Wilo Xylem Zoeller ZoeLL Sulzer Ebara CNP Pump Goulds Leo Pump Calpeda Blackmer truflo witte lewa Magnatex PAC Seal Fybroc Fluidetec Garlock carver

29Oct, 2002

Water Pump

The pumping of water is a basic and practical technique, far more practical than scooping it up with one’s hands or lifting it in a hand-held bucket. This is true whether the water is drawn from a fresh source, moved to a needed location, purified, or used for irrigation, washing, or sewage treatment, or for evacuating water from an undesirable location. Regardless of the outcome, the energy required to pump water is an extremely demanding component of water consumption. All other processes depend or benefit either from water descending from a higher elevation or some pressurized plumbing system.

The ancient concept of the aqueduct took simple and eloquent advantage of maintaining elevation of water for as long and far a distance as possible. Thus, as water moves over great distances, it retains a larger component of its potential energy by spending small portions of this energy flowing down a slight gradation. A useful aqueduct system ultimately depends on a fresh water source existing at a higher elevation than the location where the water can be of use. Gravity does all the work. In all other instances, pumps are necessary.

In day-to-day situations, available water is often contaminated, unhealthy, or even naturally poisonous, so that it is necessary to pump potable water from lower levels to higher levels, where it can be of use. A fresh water source in a lower stream, river, pond, or lake is often pumped to higher ground for irrigation, livestock, cooking, cleaning or other uses by humans, who quite naturally need fresh water. This will purify mostly fresh water, and the treatment of largely contaminated water refer endlessly to pumping.

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.

Pumps operate by some mechanism (typically reciprocating or rotary), and consume energy to perform mechanical work moving the fluid. Pumps operate via many energy sources, including manual operation, electricity, engines, or wind power, and come in many sizes, from microscopic for use in medical applications, to large industrial pumps.

Mechanical pumps serve in a wide range of applications such as pumping water from wells, aquarium filtering, pond filtering and aeration, in the car industry for water-cooling and fuel injection, in the energy industry for pumping oil and natural gas or for operating cooling towers and other components of heating, ventilation and air conditioning systems. In the medical industry, pumps are used for biochemical processes in developing and manufacturing medicine, and as artificial replacements for body parts, in particular the artificial heart and penile prosthesis.

When a casing contains only one revolving impeller, it is called a single-stage pump. When a casing contains two or more revolving impellers, it is called a double- or multi-stage pump.

In biology, many different types of chemical and biomechanical pumps have evolved; biomimicry is sometimes used in developing new types of mechanical pumps.

Village Level Operation and Maintenance (VLOM) is an unofficial classification given to handpumps used in developing countries that require minimal maintenance or that can be done “at the village level.” Not all maintenance and repair needs to be done by the villagers for a pump to be classed as a VLOM pump. VLOMM, or Village Level Operation and Management of Maintenance is often used synonymously. This addition emphasizes the role of users as the managers of maintenance able choose to use someone from outside the village to assist with more complicated repairs.

Type For Water :

Centrifugal Pump
Split Case Pump
Multi Stage Pump
Sewage Pump
Etc

Default Width dan Height di Tag Marquee 50 x 40 FSHA 65 x 50 FSHA 65 x 50 FSJA 80 x 65 FSGA 80 x 65 FSHA 80 x 65 FSJA 80 x 65 FSKA 100 x 80 FSGA 100 x 80 FSHA 100 x 80 FSJA 100 x 80 FSGCA 100 x 80 FSHCA 100 x 65 FSKA 125 x 100 FSJCA 125 x 100 FSKA 125 x 100 FSLA 150 x 125 FSHA 150 x 125 FSJA 150 x 125 FSKA 150 x 100 FSKA 150 x 125 FSLA 150 x 100 FSNA 200 x 150 FSHA 200 x 150 FSJA 200 x 150 FSKA 200 x 150 FSLA 200 x 150 FSNA 250 x 200 FSLA 250 x 200 FSNA 50 SQPB 80 SQPB 100 SQPB 150 SQPB 2OO SZ 250 SZ 300 SZ 50 DVS 5.4S 50 DVSA 5.4S 50 DVSJ 5.4S 50 DVS 5.75 50 DVSA 5.75 50 DVSJ 5.75 50 DVS 51.5 50 DVSA 51.5 50 DVSJ 51.5 50 DVS 55.5 65 DVS 5.75 65 DVSA 5.75 65 DVSJ 5.75 65 DVS 51.5 65 DVSA 51.5 65 DVSJ 51.5 65 DVS 52.2 65 DVSA 52.2 65 DVSJ 52.2 65 DVS 53.7 65 DVSA 53.7 65 DVSJ 53.7 80 DVS 5.75 80 DVSA 5.75 80 DVSJ 5.75 80 DVS 51.5 DSZ3 DSC3 VY/VZ HS HZ CN KS SS/SSD VPCS VPCH UCW SXB SXH FSS IFW CNA SQPB LPDA FSDA GSO GSD GS GSS DL DF DS/DVS QDC GP40 GP 50 GP 65 LVM EVM 4BHS DML CDX EVMS GPE Pump GPE US Pump Slurry Pump Gravel Pump Dredge Pump Submersible Slurry Pump Vertical Slurry Pump Horizontal Pump Froth Slurry Pump Water Pump Centrifugal Pump Ace-In-A-Hole AMT AquaBoost AquaCharge American Granby Ante-Seize Berkeley Blue Angel Brady Burks Charge N' Flow ChemFlo CTS CLA-VAL Conery Crane Drainosaur Ecosub Flint and Walling Flo Control Flojet Flomax Franklin Electric Gorman Rupp Goulds Water Technology Green Leaf Grundfos Heller Aller Honda Hudson Valves Hydrotronic Intermatic Irrigator Jabsco Kalas Leader Liberty Little Giant MP MTH Mercoid Myers Oasis Oberdorfer OilTector Omnivore OTS Pearl Pacer Pedrollo Pentair Pony Power-Flo Protek RainPerfect Ranger Rule Rule-A-Matic Rustler SJE Rhombus Simer StaRite Strataflo SuperBrute SuperMax Topp Water Wizard Watts Wellmate Wessel Wilo Xylem Zoeller ZoeLL Sulzer Ebara CNP Pump Goulds Leo Pump Calpeda Blackmer truflo witte lewa Magnatex PAC Seal Fybroc Fluidetec Garlock carver