Municipalities

• 40 PV - 30m head / 12l/s
• 65 QV - 31m head / 25l/s
• 100 RV - 34m head / 75l/s
• 150 SV - 43m head / 105l/s
• 200 TV - 36m head / 220l/s
• 250 TV - 31m head / 330l/s

Other common features for the GH include 316 SS shaft sleeves, keyed impellers to prevent accidental spin off, dynamic balancing to ISO G2.5 guidelines, and re re greaseable bearings secured with locking rings, as standard. These features combine to produce shaft deflection values so low that they exceed the requirements of ANSI B73.1M-1991 and overall, provide some of the most efficient hydraulics in the industry.

Options for the JP include replaceable wear rings, cartridge seals, and flush plans. Along with these, higher alloy material options such as Ni-Al-Br and CD4MCuN and a full range of motor and baseplate choices are also available.

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API Maxum OH2

The API Maxum OH2 is designed for optimum reliability, featuring rugged construction and state-of-the-art mechanical design. Units are well suited for applications that include petroleum refining/production/distribution, petrochemical/chemical processing, boiler circulation/high- temperature applications, and general industrial use. A workhorse in the industry, these pumps are designed for years of service, in some of the toughest environments imaginable.

This model is fully compliant with latest edition API 610 specifications. Standard features include renewable casing wear rings, API 610 seal chamber sized to accommodate 682 mechanical seals, back pull-out construction, dynamically-balanced impellers, heavy-duty carbon steel/finned bearing housing equipped with labyrinth-type oil seals, and fan cooling. Locations are also included for temperature probes, as standard. Common options include single, double or tandem mechanical seals, and various seal flush systems. Heavy-duty baseplates, casing jackets, and various levels of performance testing are also available.

Together, these features combine to produce some of the most efficient hydraulics in the industry and shaft deflection values meeting or exceeding those of API 610 requirements. The API Maxum OH2 is also available as an OH1 design for lower temperature applications.

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For Pressures to 1,500 PSI

The RS is offered with Class 300 ANSI R.F. inlet flanges and Class 600 or 900 ANSI R.F. discharge flanges, depending on the pressures and number of stages involved. Hydraulic performance extends to 2,000 GPM and 3,400 ft. TDH, making it ideally suited for the most demanding industrial and process applications.

The RS design incorporates a product-lubricated, advanced composite material, sleeve-type radial bearing at the outboard (discharge) end. The thrust bearings are two matched angular contact ball bearings located at the inboard (suction) end of the pump. An optional outboard mechanical seal with an inboard radial ball bearing is also available. The RS has oil-lubricated ball bearings, which can be water cooled. Larger units can also be fan cooled.

The available materials of construction, from ductile iron to duplex stainless steel, offer combinations suitable for all applications from general water services to light abrasives and corrosive applications. Our proprietary advanced composite material, available for wear rings and interstage bushings, offers high-temperature performance, and exceptional resistance to wear and corrosion.

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Capacities range to 1000 GPM, depending on discharge head and speed of operation. Available in 6 sizes ranging from 1”-4”; standard materials of construction include All Iron, CD4MCu and Rubber Lined. The 855Series features an overhead v-belt drive arrangement as a standard, with options for close coupled or frame mounted drives. By utilizing either belt drive or variable frequency drive, performance characteristics can be fine-tuned to match most system requirements. Maintenance is simplified as the vertically split case maybe disassembled to expose the entire wetted area. Standard features include a rotatable discharge casing which allows flexibility in locating desired discharge flange orientation, packed stuffing box with seal water connections provided to insure lubrication and eliminate vacuum/air leakage and 2” diameter stuffing box bore on all units. Pumps come with discharge flanges dual drilled for both 150lb / PN 10 connections. 17-4pHstainless steel shafts are utilized to both strengthen the shaft and eliminate the need for shaft sleeves (duplex shafts with CD4MCu). Impellers are keyed to the shaft ,providing a secure fit and protection should momentary reverse rotation occur. The Swing-Out Mount is popular as an optional feature, allowing inspection of the pump or quick access to the tank interior.

Applications

The dosing pumps are designed for handling chemicals within the following applications, among others:

• Drinking water treatment
• Wastewater treatment
  
• Cooling water treatment
  
• Washing systems
• Process water treatment
• Chemical industry.

Features and benefits

• Precise and easy setting
  
• Unique technology
  
• Small number of variants will cover all needs
  
• Full pulse control
  
• Pulse batch control
  
• Internal timer batch control
  
• Analog 0/4-20 mA control
  
• Level control
  
• Fieldbus communication module.

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• Construction site dewatering
• Waste water handling
• Effluent pump out
• Livestock waste water disposal
• Solid laden mine waste pump out
• Fire fighting pumps, mop up & fire protection
• High pressure water transfer
• Spray irrigation
• Diesel fuel transfer
• High pressure spraying
• Boom spraying
• Wash down
• High volume water transfer
• Fast fill tanker applications
• Flood irrigation
• Construction site dewatering

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316 Stainless Steel or Hastelloy
Flow rates to 650gph(2460L/hr)
Differential Pressures to 250psi(17.2bar)
System Pressures to 500psi(34.5bar)
Temperatures to 350°F(176°C)

Engineered to control, measure and dispense preset volumes of liquid from drums, IBC’s, plating tanks or any large storage vessel. The air systems are ideal for high frequency, continuous duty applications. The BCS can be used in an industry where batching, chemical packaging or dilution is required to be accurate and efficient. Simply dial in the desired volume, press ENTER and the BCS delivers a preset volume of liquid virtually hands-free.

Applications

• Chemical Packaging
• Water Treatment Chemicals
• Chemistry For Plating Tanks
• Chemical Delivery

Features

• Turbine Paddle Wheel Design
• Measures: Gallons, Liters, Cubic Meters
• Resettable Totalizer
• User Friendly “In Field” Calibration
• 7 Pre-Set Batches
• PP & PVDF Materials of Construction
• Relay Output Signal

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Models / Series

• Open Drip-Proof
• TEFC
• Explosion-Proof
• Air | 1/2 hp
• Air | 3/4 hp
• Air | Flange Mount
• TEFC | 3 Phase

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Models / Series

• Centrifugal | Polypropylene
• Centrifugal | Stainless Steel
• Centrifugal | CPVC
• Centrifugal | PVDF
• Centrifugal | Aluminum
• Progressive Cavity | Planetary Gear
• Progressive Cavity | Direct Drive

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The regenerative turbine pump design is very unique and works on a different principle than PD pumps. The impeller is a rotating, non-contacting, free-wheeling disc which has many small buckets or cells (typically about 60) on its periphery. When liquid enters the suction port it is picked up by the impeller and instantly accelerated around in the narrow hydraulic channel (casing volute) surrounding the cells. Kinetic energy is imparted to the liquid being flung outwards by the centrifugal force from the liquid in the teeth cells, while circulating radially around the channel. 

The simplest type of centrifugal pump is the single stage machine that consists fundamentally of a rotating element, called an impeller, and a casing. Liquid is led to the eye or center of the impeller and is set into rotation by the impeller vanes. By virtue of centrifugal force the liquid is thrown from the rim or periphery of the impeller with a considerable velocity and pressure. The casing, which closely surrounds the impeller, has a volute shaped passage of increasing area, which collects the liquid leaving the impeller, and converts a portion of its velocity energy into additional pressure energy. This casing passage leads to the discharge nozzle of the pump where it is forced into the discharge piping.

Petrochemicals generate starting products for the manufacture of plastics, pharmaceuticals, colorants, detergents, and other products. The most important operations are the various splitting or cracking processes (e.g. steam cracking, hydrocracking). These processes convert long-chained hydrocarbons (e.g., naphtha) into short-chained ones.

LEWA supports your production plants with effective additive metering, as well as with the conveying and treatment of washing water and sour water.

LEWA offers you specialized solutions for the metering and conveyance of the required chemicals and products. We design pumps and systems to suit your requirements and offer you all-round support for processes such as hydrocracking.

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The Nikkiso Non-Seal centrifugal canned motor pump has been designed specifically for the chemical industry. There, it is used for metering critical fluids. To do this, the centrifugal pump is designed in accordance with API 685.