Rotary Gear Pumps

Since, we have a widespread supply chain network; we can satisfy buyers by catering to bulk requirements and making delivery within the stipulated time. We are a quality-driven firm and dedicatedly work towards attaining maximum client satisfaction. And, for this, we have adopted several measures for ensuring high quality of our products.

We effortlessly dispatch the product basket to the clientele as we have excellent, wide connectivity and trusted shipping facilities. Buyers can stay rest assured for damage-free products from our end as we make use of quality packing material. We also fulfill different packing requirements of the clients such as customized or standard.

 

Specification :

• casing & covers - ci gr20, is-210
• Drive shafts-EN-9 hardened & ground
• Impeller gears-EN-8 toughened
• Bush-Bearing-sintered bronze
• Seals-Oilseals nitrile rubber
• R.V. Spring- AISI S.S.302
• R.V.Ball Valve-EN-31 hardened & ground
• R.V. Screw & plug-Brass
• Key for Coupling-Mild steel.

 

Uses : Due to simple & compact design & with mono-block version these pumps are ideally suitale for OE application of engine lubrication, pumping & heating units, oil filtration, cleaning & cooling systems. The pump can also be used for general purpose application to handle viscous liquid such as fuel oil, lube oil, LSHS, mineral oil, transformer oil, LDO paints, varnish, glue, glycerine, soap solution, sugar solution & molasses.

We are Surendranagar(India) based entity and have become a primary choice of the buyers owing to our timeliness. In order to ensure zero defects at buyer's end, we make sure that we conduct stringent quality procedures.

 

Features : Size from 1/2" to 3" BSP, Capacity from 20 LPM to 500 LPM max, Working Pressure 11KG/CM², Temp 90°C Viscocity, 10,000 CST

• Compact
• Low Noise
• Efficient
• Easy Maintainable
• Cost Economical

 

Applications : 'ROTODEL' Rotary gear pumps are useful for handling viscouse liquids i.e.all kind of oils, vicouse chemicals,and food application. Following liquid can be handle with them.

• All kind of mineral oils.
• All kind of vegetable oils.
• Coal tar, Bitumen, asphalts
• Paints & varnish
• Sugar molasses & syrups
• Printing inks & Dyes.
• All kind of fish & animal oils.
• Glycerine & glycole.
• Fuel oil, Diesel oil & funace oil
• Soap solution & lard.
• Glue.
• Viscouse chemicals.

Rotary gear pumps finds wide application in Power Plant, Steel Mills, Refineries, Oil Storage Instolation etc.

 

Design improvement is a continous process at DEL there for information in this catalouge is subject to change without notice.

With the assistance of our capacious warehouse, we are able to meet the bulk as well as urgent requirements of the buyers. Our unit is supervised by the experts ensuring complete safety of the lot. Our company is a pioneering name in Surendranagar(India), renowned for providing the best product at competitive prices.

 

Features : For handling corrosive, abbrasive, hygienic viscous liquid for transfer, loading-unloading & pressurising applications.

• Compact
• Efficient
• Reliable
• Easy Maintainable
• Easy Cleanable

 

Specifications :

• Pump Body
• Front Cover
• Back Cover
• Seal Cover - SS 316 - CF8M
• R.H. & L.H. Gear
• Rotor/Stator Shaft
• Dom nuts, Stud & Key - SS AISI 316
• Bearings - Teflon Coated 'DU'
• Bracket - CI/CS
• Sealing & Packing - Teflon

Power requirement at duty point can be worked out by multiplying the duty point pressure with unit hp.& adding no Load viscous power of appropriate viscosity to this. Safety margin may be provided before fixing the rating of the pri-mover. For higher viscosity further margin may be kept or the manufacturer may be consulted. All sizes of 'HGSX' pumps are designed to run at 1440 RPM up to viscosity of 500 CST, however small size pump up to 1" can be run at 1440 RPM safety, even at higher viscosity up to 1000 CST but with additional horse power, for higher sizes reduce the speed to 960 RPM. For viscosity above 1000 CST. speed is require further to avoid cavitation & over loading consult our expert.

 

Uses :This compact & efficient SS pumps finds different application for handling food products like Ghee, Butter fruit pulp, vegetable souse, kanji etc. They are also used in Pharmaceutical application for handling sugar solution, Glycerine, Glycol etc. Corrosive viscous chemicals application can also be met with this pump most effectively.

Ranked amidst the celebrated Suppliers of NDX Type Rotary Triple Twin Gear Pump, we are customers' reliable choice in the industry. We have an in-house facility, which is used for making stocks. Laced with modern amenities, our storehouse keeps the products away from moisture, rainwater, sunlight, etc.

 

Overview : Size From 5" to 12" NB (Flanged to ASA 150 class), Capacity, From: 80M³/hr to 550M³/hr, Pres-up to 11Kg./Cm², Viscosity up to 1,00,000 - cst, Temperature - up to 110ºC

• Compact
• Low Noise
• Economical

 

Uses : NDX series pumps are designed to handle bulk volume of viscous & semi viscous liquids quite efficiently at medium pressure up to 11 bar. The pump can be coupled directly with drive as impeller speed reduction ismade possible within pump, making it very compact & cost economical & there by reducing the over all cost & space, the timing gear reduces the noise level & enhances the working life of the pump.This pump out performance twin Screw pump in all aspect in this range & they are suitable for wagon decanting, cargo-un-loading of various viscous liquids such as edible oils, Fuel oils, viscous chemicals etc. Step-down Versions are also available; type MDX comes without reduction gears where as type JDX comes without timing & reduction gears, type JDB is with bush bearing suitable for molasses applications.

Our product range is secured properly with premium packaging materials that protect the products from mechanical damage and ensure the product delivery is safe and without damage. In order to deliver an exceptional lot of products, we make use of the finest grade material for producing them. As a result, the finished products comply with high quality standards.

 

Features : From 1/2" to 6" Size, Capacity up to 125 M³/hr, Pressure up to 21 bar Viscosity 1,00.000 CST, Temperature - up to 110ºC

• Efficient
• Reliable
• Proven
• Compact

 

Pump Motor Coding :

• Sign # Indicates Pump Size : 5-short, 6-medium, 7-long
• Sign @ Indicates Pump Type : 6-RDBX, 7-RDNX

 

Pump Operation & Performance Characteristics

Gear pump is the most versatile rotary positive displacement pump & it scores over other types of Pd pumps viz. Screw, Vane, Lobe, Tracoidal, Radial piston etc. & therefore it is used for the widest range of application i.e. loading-unloading, transfer, fuel pressurizing, hydraulic, lubrication in IC engines, Polymers metering applications etc. Gear pump can develop high pressure uo tp 210 bar in same configuration simply by tightening the working clearances & improving the workmanship, whereas in screw pump the thread length is needed to increase making the pump bulky & difficult to manufacture. In gear pump each tooth gap contributes to the capacity while in screw pump only one pitch length contributes to the capacity thus gear pumps are always cpmpact & efficient. The capacity of the pump varies directly with speed but remain constant against pressure, however some liquid always by-passes to suction due to running clearance between the casing & impeller causing slip which depends upon the differential pressure, viscosity of the liquid & the workmanship. Gear pumps are capable of handling liquids of any viscosity, th slip reduces with increse in viscocity but the frictional power increses. Though the pump has a self priming capability some net positive suction head(NPSH) is always required to avoid cavitation, this again depends on the viscosity of the liquid to be pumped & the pumping speed.

 

Internal power losses : In rotary gear pumps are of two types.The mechanical loss is the power required to overcome friction drag of all the moving part within the pump while viscous loss is power loss due to fluid viscous drag & shearing action of the fluid, this can be calculated from the graph shown here.

Horse power calculation : The bhp required to drive a rotary pump is sum of the theoretical HP & internal losses. The former is the actual work done in moving the fluid from inlet pressure condition to outlet pressure condition & is product of constant C=0.037, Capacity in M3/hr. & Pressure in Kg/CM2 or Constant c-2.3, Capacity in GPM & Pressure in PSI.

 

Gear Pump Selection & uses : RDBX/NX series pump are medium pressure pumps designed for viscous pressure application up to 21 bar. The bush bearing version type RDBX is used for clean or dirty viscous & semi viscous liquid where the shaft surface speed is less. Pump upto 2^1/2" size can be run at 1440 RPM & for higher size the speed should be reduced to 960 RPM or lower. The self-lubricated needle roller bearing type can be used for clear viscous liquid & can be run at 1440 RPM for all the sizes. This pump are ideally suited for fuel pressuring, hydraulic, medium pressure lubrication & transfer applications.

 

Inspection & testing : All pumps are assembled after due inspection of each & every parts & than they are tested for duty parameters in accordance with API-676 & JIS-B 8312-1976. Third party inspection are also offered, we are approved by following consultants & inspection agencies.

With the assistance of our dedicated workforce, we are able to bring forth a comprehensive range of RDMNS Type Rotary Gear Pump. Raw materials are feedstock for the finished products and thus it becomes crucial to source these inputs only from certified vendors. So, as a reliable name, we do the same.

 

Overview :

• Compact
• Efficient
• Durable

 

Features :

• Pump Body CF8
• Front Cover CF8
• Back Cover CF8
• Gland Cover CF8
• Rotar Gear SS-316
• Stator Gear SS-316
• Rotar Shaft EN-57/SS-430
• Stator Shaft EN-57/SS-430
• W.Plate - Bronze/Graphite
• Bushes Teflon Coated DU
• Shaft Seal - Z Pack/Mech. Seal
• Key SS-316

 

Uses : RDMNS Pumps are used for handling thinner liquid at moderate pressurizing viz. foam pressurizing application for fire fighting, high pressure coolant transfer application for machine tools, light fuel pressurizing application or boiler & burners, heavy viscous liquid transfer application such as Molasses, Magma, Soap stock, Tar, Bitumen, Paints, Varnish, Crude oil etc.

 

Power Sped : The Hydraulic HP should be calculated by multiplying the unit HP with the duty point pressure, the viscous horse power of appropriate viscosity should be added to this from above chart. Margin for R.V. operation & Safety margin should be provided brfore fixing the drive HP. All model of RDMNS series are basically design to run at 1440 RPM up to viscosity of 200 CST however in higher sizes above 2" the pump speed is required to be reduced with increase in viscosity for this refer viscosity speed curve or consult the works. Whir reducing the speed, the pump shaft should not be loaded with heavy gears or pulley use bearing block to take up such load.

We are reckoned for the quality that we offer in our products. And, for maintaining it, we make use of the world-class raw material for manufacturing the products. As we are instrumental in supplying excellent quality RDMS Type Rotary Gear Pump, we are named amid the celebrated names in the industry.

 

Overview : Self lubricated bish bearing design ROTARY GEAR PUMP type 'RDMS' for Foam-pressurizing fire fighting, Chemicals and Pharmaceutical applications & transfer of all kind of Viscous, Non viscous Thick or Thin liquids.

 

Features :

• Pump Body CF8
• Front Cover CF8
• Back Cover CF8
• Gland Cover CF8
• Rotar Gear SS-316
• Stator Gear SS-316
• Rotar Shaft EN-57/SS-430
• Stator Shaft EN-57/SS-430
• W.Plate - Bronze/Graphite
• Bushes Teflon Coated DU
• Shaft Seal - Z Pack/Mech. Seal
• Key SS-316

 

Uses :RDMS Pumps are used for handling thinner liquid at moderate pressurizing viz. foam pressurizing application for fire fighting, high pressure coolant transfer application for machine tools, light fuel pressurizing application or boiler & burners, heavy viscous liquid transfer application such as Molasses, Magma, Soap stock, Tar, Bitumen, Paints, Varnish, Crude oil etc.

We are flexible in offering the product basket in the committed time span as we have advanced logistics facilities available. With the aid of diligent professionals and smart packaging system, we can easily render bulk and customized packaging requirements of the patrons. Also, we ensure that the packed lot has shock sustainability to circumvent loss during transit.

 

Overview : From 1/2. to 6" NB Size (Flanged to ASA 150 Class)Capacity, From 0.5 TO 200 WTI, Pres-up to 11 Kaden, Viscosity up to 1,00,000 - est, temperature - up to 110110ºC

• Compact
• Economical
• Low Noise

 

Advantages

• Herrigbone rotos design eliminates side thruts.
• Modified tooth profile enhances the tooth life.
• Floating gear-design ensures uniform load distribution.
• Low-leakage path by design improve volumetric efficiency.
• Extra thick shaft reduces bending effectively.
• Sleeve on shaft make maintenance economical & easy.

 

Pump Characteristics : Gear pump is a rotary positive displacement pump with positive pressure characteristics. The capacity of the pump varies directly with speed but remain constant against pressure, however due to running clearance between the casing & impeller some liquid always by-passes to suction causing sleep, which depends upon the differential pressure, viscosity of the liquid & ofcourse the workmanship. The pumps are capable of handling any vcosity, the sleep reduces with viscosity but the viscous power increases. The punp has a self-priming capability however some net positive suction head (NPSH) is always required to avoid cavitations depending upon the viscosity of the liquid to be pumped & the pump speed.

 

Internal power losses : The internal power losses in rotary pumps are of two types. The mechanical losses is the power necessary to overcome frictional drag of all the moving part within the pump While viscous losses is power requited to overcome fluid viscous drag & shearing action of the fluid, this can be computed from the graph on the opposite side.

 

H.P. calculation : The break horse power required to drive a rotary pump is sum of the theoretical HP & internal losses. The theoratical power is the actual work done in moving the fluid from inlet port to out let pressure condition & is product of Constant C=0.037, Capacity in cub. Mt./hr. & Pressure Kg/Sq. Cm or Constant=2.39, Capacity in us GPM & Pressure in PSI.

 

Pump Selection & uses : The bush bearing type of pump can be used for clean viscous liquid having sufficient lubricating value such as clean tube oil, Vegitable oil, Fish & Animal oil, Gear oil, Glycerine Hydraulic oil, Honey,ASMI & SAE lubricating oil for intermittant duty. However for continues duty pump with needle roller bearing in 'RDRN' series should be selected. For liquid having low viscosity,poor lubricating values or Containing dirts or impurities such as Crude oil, Dirty lube oil, HSD,Kerosene,LDO,Paints, Sugar solution, Turpentine, Varnish, WoodPulp. Pump with independently lubricated bearing should be selected. For liquid which tends to solidify at room temperature such as Ashphalt, Bituman, Fumace oil, Tar, Cellulose, Starch, LSHS, HPS, Molasses, Naptha, Phenol resin, RFO, Silicate, Soap solution,Viscous,Wax etc. Jacketing constructions hould be selected to facilitate the heating or the pump by steam or thermic fluid.

 

Inspection & testing : All Pumps are individialy tested for its performance as per JIS B-8312-1976. Third party inspection is also offered to following agencies with whom we are already registesed as an approved supplier of these pumps.

 

Pump Motor Coding

• Sign # Indicates Pump Size - 5-short, 6-medium, 7-long
• Sign @ Indicates Pump Type - 0-RDRB, 1-RDRBJ, 2-RDRN, 3-RDRNJ, 4-RDRX, 5-RDRXJ
• Sign * Indicates Motor Type - W-NON-Flame Proof, X-Flame proof motor

Both of our online and offline payment processing methods are secure for transaction offering you a reliable assistance. We thus accept all kinds of cash payments as well as bank transfers. We are reckoned for the quality that we offer in our products. And, for maintaining it, we make use of the world-class raw material for manufacturing the products.

 

Overview

• Compact
• Efficient
• Durable