Precision Engineering Works
Precision Engineering Works
ISO 9001:2008 Certified
Lower Parel, Mumbai, Maharashtra
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Centrifugal Pumps

Our product range includes a wide range of back pull out end suction, centrifugal monoblock pumps, centrifugal split case and centrifugal multistage pumps.

Back Pull Out End Suction

Back Pull Out End Suction
  • Back Pull Out End Suction
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Product Details:

BrandPEW (PRECISION ENGINEERING WORKS)

Being a pioneer in the use of Submersible Borewell Pumps for Firefighting, "PEW" now offers Centrifugal Back pull-out Endsuction pumps for use in places where Submersible pumps are not permitted / connot be used. These pumps are non-selfpriming with axial suction port, radial discharge port and horizontal shaft. The back pull-out design enables removal of the motor, coupling, bearing bracket and impellar without disturbing the pump housing or pipework.



    Features :
    • Self vented, foot mounted, center suction volute casing & single stage, closed / semi open dynamically balanced non-clog impeller ensure unimpeded liquid flow
    • Supporting feet are cast integral with the casing along with suction and discharge nozzles
    • Flange drilling standards as per DIN 24255 / ISO 2858 or as per customer's requirement
    • Designed for 16 bar working pressure with optional casing for a working pressure of up to 20 bar
    • A robust and solid construction that guarantees long life even under high suction pressure conditions
    • Heavy-duty, deep-grooved closed ball bearings with minimum 50,000/- hours operating life under normal conditions ensure no dirt intrusions.(Grease lubricated; oil lubrication available on request )
    • Heavy-duty, stiff solid shaft design with low L 3/D 4 ratio ensures less than 0.05 mm shaft deflection at the seal face in all operating conditions which extends seal life
    • Seal housing is constructed to accommodate different seal/gland designs, so as to meet heavy-duty requirements, if any
    • Excellent parts interchangeability reduces inventory levels for spare parts to a minimum
    • Special design for high temperature thermal fluids available on request
    • Motor or engine driven sets
    • Special mono block versions available on request

    Applications:

    • For pumping clear/turbid water / chemicals & volatile liquids
    • Air conditioning plants, power station, mine drainage, sprinkler systems for fire fighting, and booster service Can be used for oils, brine, etc

    Range:

    • Delivery sizes up to 250 mm
    • Capacity up to 990 m3/hr
    • Head up to 120 m meters
    • RPM 500 to 3600
    • Temperature up to 90ºC

    Material Of Construction:


    Volute casing, stuffing box, gland pusher, bearing caps and endshield-Cast Iron
    ShaftEN-8 / SS 410
    SleeveSS 410
    PackingGland / Mechanical Seal
    ImpellerAny grade of Stainless Steel, cast or fabricated, Bronze, WCB, CF-8, CF-8M, Alloy 20, Cast Iron, etc.
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    Centrifugal Monoblock Pumps

    Centrifugal Monoblock Pumps
    • Centrifugal Monoblock Pumps
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    Product Details:

    BrandPEW (PRECISION ENGINEERING WORKS)

    PEW" End Suction Pumps are non- self-priming single-stage, centrifugal volute pumps with axial suction port, centrally placed radial discharge port and horizontal shaft. Volute chamber and impellers are designed to give the best possible hydraulic efficiency and good suction lift characteristics. Most modern and highly sophisticated machinery and technology are engaged in manufacturing these pumpsets, using quality raw materials, dynamically balanced impellers and rotors to ensure long life.

    These pumpsets are powered by a totally enclosed, fan cooled, AC Induction, two pole motor suitable for continuous duty with main dimensions complying with IEC standards. Motor stator is made of low watt-loss, silicon steel laminations assembled under pressure and rigidly locked in the frame. The windings are of high-grade enamelled copper wire and are varnish impregnated. Construction of motor frames and usage of quality materials result in high performance and low temperature rise thereby increasing the life cycle of the pumps.

    FEATURES
    • Single shaft for motor and pump ensures good mechanical strength.
    • Dynamically balanced rotating parts such as impeller and rotor.
    • Bronze impeller available on request.
    • Graphite coated asbestos packing rope is used to increase bush life.
    SPECIFICATIONS
    Power Range0.37 kW - 11 kW (3HP-15 HP)
    0.37 kW - 7.5 kW (3HP-10 HP) – MS Series
    Speed2880 RPM
    VersionsThree Phase: 350 - 415V, 50Hz, A.C. Supply
    Single Phase: 180 – 220V, 50Hz, A.C. Supply
    Degree of protectionIP 44
    Class of InsulationA, E, & B
    Direction of rotationClockwise viewed from Driving end
    Type of DutyS1 (Continuous)
    Nominal Suction x Delivery size in mm32 x 25, 40 x 40, 50 x 40, 50 x 50, 65 x 50, 65 x 65, 80 x 65, 80 x 80.
    MATERIAL OF CONSTRUCTION
    Part NameMaterial
    Pump CasingCast Iron
    Motor FrameCast Iron
    ImpellerCast Iron / Bronze
    ShaftMild Steel
    SealingGland Rope
    Motor FrameCast Iron
    Pumps : Centrifugal > Monoblock > CMB - MS SeriesPRESSURE BOOSTING SYSTEM PUMPS - SPECIFICATION
    Power Input Range0.37 to 7.5 kW
    Speed2900 RPM
    Degree of protectionIP 55
    InsulationClass F
    VersionsSingle Phase: 230V, 50Hz, A.C. Supply Incorporated with Thermal over load protector.
    Three Phase: 380-415 V, 50 Hz, A.C. Supply
    SealingMechanical Seal
    Direction of rotationClockwise viewed from driving end
    Type of dutyS1 (continuous)
    Nominal Suction x Delivery size in mm25 x 25, 32 x 32,40 x 40, 65 x 65
    APPLICATIONS
    • 1. Drip & Sprinkler Irrigation
    • 2. Water Supply for
    • a) Domestic / Flushing Application
    • b) Agriculture
    • c) Construction
    • d) Irrigation
    • e) Rural Water Supply Schemes
    • 3. As a Booster in
    • a) Hydro Pneumatic Systems
    • b) Fountains
    • c) Process House, etc,.
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    Centrifugal Split Case

    Centrifugal Split Case
    • Centrifugal Split Case
    • Centrifugal Split Case
    • Centrifugal Split Case
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    Product Details:

    BrandPEW (PRECISION ENGINEERING WORKS)

    PEW" split case pumps come with horizontal pump shaft and volute casing, which can be dismantled in the horizontal plane along the drive shaft.

    These pumps are available in single and double stage. The single stage pumps have inline (symmetric) design, whereas the double stage pumps have asymmetric design.

    FEATURES

    Following are the significant features observed in PEW Split case pumps:-

    • The split case construction enables removal and dismantling of the internal pump parts e.g. bearings, wear rings, shaft seal and impeller without disturbing the motor & pipe work.
    • The pumps are non self priming, horizontal split case with radial suction and discharge ports.
    • Flanges for suction and discharge ports are PN 16 and PN 25 as per DIN standard EN 1092-2.
    • These pumps are long coupled pumps with TEFC squirrel cage induction motors complying to IEC standards and foot mounting.
    • Pumps are available with gland packing as well as mechanical seal.
      The volute casing is provided with a priming & a drain hole closed by plugs. Impeller is of closed type with single or double curved blades and a smooth surface finish to ensure high pump efficiency. The impellers are dynamically balanced to grade 6.3 of ISO 1940. The impeller is of two types:
    • Single-suction impeller with liquid entry from one side. They are used in two-stage pumps only and are mounted laterally reversed in a back to back manner.
    • Double-suction impeller with liquid entry from both sides. They are used in single stage pumps only.
      Wear rings positioned between impeller and volute casing, protect the latter against wear and are easily replaceable
    • These pumps are available in bare type or can be supplied as a complete unit with Motor (Eff 1 or

      2), coupling, coupling guard and fabricated steel base frame.

    SPECIFICATIONS
    • Max permissible temp. of pumped liquid - 140℃.
    • Max. ambient temperature - 45°C for EFF2 motors & 60°C for EFF1 motors.
    • Flow Range – 25 to 2500 m3/hr
    • Head range – 5 to 120m
    • Rated speeds – 960, 1450 and 2900 rpm
    • Max power drive – 5 to 200 hp
    • DOR – Clockwise as seen from pump shaft end.
    APPLICATIONS
    • Pressure boosting for high rise buildings, hotels, industry etc.
    • Industrial washing & cleaning systems.
    • Fire Fighting systems – Hydrant, Drencher and Sprinkler pumps.
    • Cooling & Air Conditioning systems.
    • Boiler feed and condensate transfer system.
    • Irrigation systems for fields including sprinkler & drip irrigation.
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    Centrifugal Multistage Pumps

    Centrifugal Multistage Pumps
    • Centrifugal Multistage Pumps
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    Product Details:

    BrandPEW (PRECISION ENGINEERING WORKS)

    Being a pioneer in manufacturing of Centrifugal Monoblocks and End Suction pumps, "PEW" pumps have now expands its pump business by introducing Horizontal multistage centrifugal pumps. By introducing these type of pumps,"PEW"now not only deals in Domestic Sector but have taken a step head ahead by starting its business in Industrial Sector. The USP of these pumps are its capacity to deliver liquid at very high pressures.

    FEATURES
    •  
      • Vertical suction intermediate and discharge casings are clamped together by external tie bolt and sealed with gaskets or 'O' rings as required by the design, temperature of the pumped liquid and the construction of the pump.
      • Grease lubricated Anti-friction Bearings, designed to meet the application requirements are mounted on either side.
      • Pump uses soft graphite lubricated asbestos packing. The shaft is fitted with renewable shaft sleeve in the region of the stuffing box, which protects it from wear due to packing. Water-jacketed and special design of stuffing boxes with mechanical seals are available.
      • The discharge port is top vertical. Suction port is horizontal located on right or left hand side of central position when viewed from driving end. The flanges are round and corresponding to International standards.
      • The direction of rotation is clockwise when viewed from the driving end.

    SPECIFICATIONS
    • Sizes: 1" to 5"
    • Capacity: 1000 LPM
    • Max. Head: 300 MLC
    • Max. Temperature: 140° C Max

    MATERIAL OF CONSTRUCTION
    • Suction / Delivery Casings & Stage Casings - Closed Grained Cast Iron (FG 260)
    • Impellers, Diffusers, Sleeves - Closed Grain Cast Iron (FG 260)
    • Shaft & Keys - SS410
    • Clamping Studs - EN-8
    • Special material available on request - Bronze, Carbon Steel, SS316, SS304, Alloy Steel

    APPLICATIONS
    • Irrigation - Sprinkler Installations
    • Pressure Boosting - Multi Storey Buildings - Hydro Pneumatic
    • Fire fighting
    • Mining wash down applications
    • Hydraulic press / circulation of hot & cold water
    • Boiler feed pumps
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    Ruchita Patel (CEO)
    51, A To Z Industrial Estate, G. K. Marg, Lower Parel West
    Mumbai- 400013, Maharashtra, India


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