Griswol Pump Company Earns ATEX

Griswold Pump Company, a manufacturer of centrifugal pumps, announces that the standard and low-flow models of its 811 Series ANSI Centrifugal Pumps are now ATEX-compliant.

ATEX is the common name for European Union Directive 94/9/EC, which is the European safety standard for all equipment intended for use in potentially explosive atmospheres. With this certification, Griswold’s 811 ANSI pumps are now available for use in places where explosive atmospheres may arise through the mixture of air and flammable materials such as gases, vapors, mists and dusts. These conditions most commonly exist in chemical plants, refineries, liquid-storage terminals and latex plants.

All of the Griswold 811 ANSI pumps that meet the ATEX directive will now be designated by an “A” at the beginning of the model number, while a tag that contains the ATEX equipment group, category, zones and temperature class will also be added to the pump body. These pump models will also feature the “CE” mark, which makes them compliant with the European Union’s Machinery Directive 2006/42/EC and available for importation into the EU; the ATEX-compliant models are the only Griswold pumps that feature the “CE” mark.

Griswold’s 811 Series ANSI Centrifugal Pumps are ideal for a wide range of applications in potentially explosive atmospheres because they have been designed with an open-impeller that minimizes concentrated wear; self-tightening impellers that reduce leaks and failures; the ability to externally adjust the clearance so that peak efficiency is ensured even after wear-area loss; back pump-out vanes that reduce pressure on the shaft seal and bearings; and investment-cast impellers that are ultra-smooth to guarantee hydraulic and mechanical balance, as well as maximized seal and bearing life.

Picture: 811 Series ANSI Centrifugal Pumps (Image: Griswold)

Source: Griswold

Bell & Gossett Introduces New Series of Submersible Wastewater Pumps

ITT has introduced its new Bell & Gossett Impact series of high-efficiency submersible wastewater pumps that are designed for use in commercial and building services applications where wastewater or drainage must be disposed of quickly, quietly and efficiently.

Featuring Bell & Gossett’s self-cleaning impeller and casing, Impact Pumps are specifically configured to process solids more easily and reduce clogging while improving hydraulic efficiency. The pumps consume less energy and last longer, even in high demand conditions, and operate at efficiencies exceeding market standards by 10-15%.

Impact MK model pumps process solids easily, which means less clogging and therefore reduced maintenance. Greater durability also contributes to lower operating costs. The air-filled motor, dual mechanical seal and specially designed seal chamber improve overall pump efficiency and durability, resulting in less wear of pump components over longer periods of time, reducing both maintenance and energy costs. The seals also feature better leak detection and hard faces that endure abrasive conditions found in wastewater applications.

For low volume wastewater applications, the Impact MV model features a vortex impeller that is also self-cleaning; in low volume a vortex impeller is also suitable for handling media that contain sand and other abrasive solids.

Picture: Impact submersible wastewater pump (Image: ITT)

Source: Bell & Gossett

AxFlow Launches Compressed Air Metering Device

AxFlow has announced that it has taken on the European distribution of Warren Rupp’s AirVantage compressed air metering device for Sandpiper 2 and 3-inch metallic Air Operated Double Diaphragm pumps.

By managing the compressed air demand of the pump to the application, considerable energy savings can be made.

For users of Air Operated Double Diaphragm pumps a large percentage of the operating costs are attributable to compressed air. According to Warren Rupp, the power cost to run compressors makes up almost 70 percent of the total cost of the compressed air system, and 90 percent of most air compressor problems are located within the system itself. This is due to system layout, leaks, airline sizing, air treatment, piping materials and equipment specification. All of these issues reduce the run-time of compressed air systems, so improving efficiency is concentrated on the supply side. However, operators need to consider the demand side in order to ensure that equipment specifications are delivering efficient performance.

Self-powered by an internal generator that produces 12V AC, the AirVantage is available both as a complete pump and as a centre-section upgrade kit for existing installed pumps including both ball and flap valve construction. For intrinsically safe conditions, it is also available with an explosion-proof (ATEX certified) electrical assembly for operation in hazardous areas. The unit features an advanced learning programme that automatically adapts and controls the amount of air used under a variety of condition points, saving energy at the same time as maintaining a comparable flow.

AirVantage uses sensors to read pump velocity and switches the pilot valve during mid-stroke, allowing momentum or inertia to complete the pump stroke but without filling the diaphragm completely with air. This still moves fluid through the pump at comparable flow, but without consuming as much air. The sensor in the centre section of the pump reads the pump velocity and communicates this information with a microchip that calculates the pump’s ideal optimum point. This controls the amount of air that enters the diaphragm chambers, switching air to either side of the pump before the pump completes a stroke. As a result of employing a monitoring system that reads velocity, AirVantage can adapt as the pump’s condition point changes from low discharge pressure to high discharge pressure, and allow more or less air to complete the stroke continuously optimising energy consumption.

Reducing the volume of compressed air used to drive the Air Operated Double Diaphragm pump will create other benefits for the user other than just contributing to energy savings. By operating more efficiently there is less wear on the compressed air systems and the pumps which lead to longer working life and reduced maintenance and improved plant productivity.

Source: AxFlow

 The Online Pump Magazine

Gear Joint Allows For Maximum Performance of Moyno Pump

Moyno, Inc. offers the Moyno 2000 Progressing Cavity Pump with a unique gear joint that allows the versatile, high-performance pump to handle a wide range of applications from shear-sensitive chemicals to difficult-to-process slurries and sludges. The Moyno 2000 Pump features the highly acclaimed crowned gear universal joint drive train configuration to provide exceptional torque and thrust control. Patented joint seals effectively protect the gear joints from pumpage contamination. The gear joints in the Moyno 2000 Pump are grease-lubricated to run at 180° F, far cooler than oil-lubricated joints. The rear gear joint location in the Moyno 2000 Pump reduces the radial load on the drive shaft and bearings and requires minimal pump disassembly to service. The Moyno 2000 pump line offers capacities of 2 – 2500 gpm (.5 – 568 m3/hr) and pressure capabilities to 1,000 psi (69 bar). The Moyno 2000 Pump provides efficient performance and low total cost of ownership in an extensive array of applications, including: Sludge and mineral slurry transfer Feeding dewatering equipment Paper coating color and clay slurry Gypsum, plaster and resins Whole grapes and solids-laden food wastes Paint, solvents, adhesives and gels Source: Moyno

KSB Buys into Drive Manufacturer

On 23 July, Frankenthal-based KSB Aktiengesellschaft acquired a majority interest in ITACO/REEL.

The Italian company can look back on 25 years of successfully supplying customised automation and drive solutions for the international market. KSB has been cooperating with ITACO/REEL as its supplier of components and partner in the development of integrated pump drives for more than five years. Based on new technological approaches for motor and drive control solutions, the companies jointly developed a pump drive which even surpasses the most stringent requirements of EU Directive 2005/32/EC for high-efficiency motors.

The electric motors of pumps, as well as of compressors, account for the major portion of energy consumed in industry. This has led to continuously growing demand for energy-saving fluid transport systems.

The development of such systems is of strategic importance for the future success in the pump market. With its interest in the Italian drive specialist, KSB secures access to key technologies of the future.

Picture: On request, KSB Etanorm PumpDrive pumps can be supplied with the new high-efficiency motors by Italian ITACO/REEL already today. (KSB Aktiengesellschaft, Frankenthal)

Source: KSB

Pumpex Presents New High Head Dewatering Pump

Pumpex expands the product portfolio with a new powerful high head dewatering pump: P3001 SH. The P3001 pump has a robust design with a 9.4 kW motor.

It delivers over 80 metres of head and in combination with the low weight of 67 kg this pump provides easy handling without compromising high performance and reliability.

The main advantages of Pumpex new P3001 SH are:

- High wear resistance with hard impellers and polyurethane wear parts.
- Simple maintenance by external plugs for oil and motor inspection.
- Quick and safe service. No adjustments needed; all parts have fixed positions for reliable operation and maintained efficiency.
- Easy handling by low weight and plug-in start with built-in motor protection.

The new high pressure pump P3001SH is made for the toughest applications at construction sites, in mines, for tunnelling jobs where easy handling, safety and reliability are crucial.

The complete Pumpex dewatering pump range covers motor sizes from 0.48 kW to 56 kW. A key feature throughout the pump range is the modular design which provides the Pumpex easy service and maintenance.

Picture: New dewatering pump P3001 SH (Photo: Pumpex)

Source: Pumpex

Electro Technic Pourarab Company (ETP) is a small and medium sized enterprise (SME) family business operating in Mashhad. Mashhad is the second largest City in Iran with approximate population of 3 million and 20 million visitors per year. ETP was established in 1970 with 2 employees and started as a small workshop specialised in repairing and winding all types of Generators, Distribution Boards and Electrical Water irrigation systems mainly used either domestically or for Industries with focus on Agriculture industry. At present, most of farms well water pumps switch from diesel to electrical and ETP has a good market share in repairing and renovating of all types of electrical pumps used for irrigation and other liquids used either in industry or farms. Today 12 employees are working in ETP’s workshop. ETP is well-known in eastern part of Iran with clients from other regions.  According to Mr. Pourarab, Managing Director of ETP, the exact statistics of market share of these companies are not readily available but by comparing the growth of each company and its infrastructure we can estimate which one has a good turnover and market share. ETP also specialises in repairing and winding all types of electro motors: AC, DC and Gearboxes of all sizes from 0.5 KW (Kilo watt) to 600 KW currently used in Industry.