CONSTRUCTION FEATURES

 

Pump body in cast iron and motor in die cast aluminium. Impeller in technopolymer, motor shaft in hardened stainless steel held in graphite bearings lubricated by the  pumping medium. 

Pump body with threaded ports.

Rotor protective jacket, stator jacket, and closing flange in stainless steel.

The two-pole asynchronous wet rotor motor features three-speed operation.

Integral thermal probe in single-phase version.

CONSTRUCTION FEATURES

 

Single body consisting of the cast iron hydraulic section, and the wet rotor motor. Aluminium motor casing. Flanged suction and delivery ports with threaded connectors for control manometers. Technopolymer impeller, tempered stainless steel motor shaft on graphite bushings lubricated by the pumped liquid. Stainless steel rotor protection liner and stator liner. Ceramic thrust ring, ethylene- propylene seal rings, and brass air breather plug. Asynchronous four-pole motor for the BMH and DMH versions, two poles for the BPH and DPH versions. The single-phase circulator has been designed for three-speed operation at 230 V, while the three- phase circulator has been designed for two-speed operation at 230 V, and 3-speed operation at 400 V. In both cases, the speed is adjusted through a special selector in the terminal box, in order to adapt the operation of the circulator to the  characteristics of the system. Built-in thermal protection in the single-phase version. For the three-phase version, the motor must be connected to the power input using an external contactor. The contactor must be connected to the thermal protection built in the motor, in order to protect it from overload at all speeds. The twin version features an automatic swing check valve incorporated in the delivery port, to avoid water recirculating through the unit when this is not running in addition, a blank flange is also supplied as standard, to allow either of the two motors to be removed for servicing. The standard execution of the pump body is in PN 10, compatible with PN 6 pumps to ensure interchangeability of the pumps in existing systems.

Circulator protection class: IP 44 for both the single-phase and the three-phase version

Insulation class: H - Cable gland: PG 11

Standard voltage: three-phase 230/400 V, 50 Hz

STRUCTURAL CHARACTERISTICS

 

Enbloc circulation pump made up of cast iron hydraulic parts and an electric asynchronous motor with wet rotor. Aluminium motor casing. High performance volute pump casing thanks to the detailed design and smooth internal surfaces. In-line suction and delivery ports, flanged with threaded connectors for the introduction of the temperature and pressure sockets. Technopolymer rotor, hardened stainless steel motor BPH-E, DPH-E, EnergeyA

 

Stainless steel rotor and stator liner. Ceramic thrust washer, ethylene propylene grommet and brass air vent cap. Two pole asynchronous motor. An automatic type clapet valve is foreseen on the back-up twin version that is incorporated into the delivery port to prevent the circulation of water when the unit is idle. Furthermore, a blank flange is also supplied if one of the two motors requires maintenance. The standard PN10 production of the pump casing is compatible with PN6 counterflanges for the interchangeability of the pump on existing systems. The DN 80 PN 16 version (eight holes) can be supplied on request. 

Circulator protection class: IP 44

Insulation class: H

Standard voltage: 230V, 50/60 Hz single-phase

The product complies with the EN 61800-3 – EN 60335-1 – EN 60335-2-51 European standards 

 

DIALOGUE STRUCTURAL CHARACTERISTICS (Electronic devices)

For greater efficiency and strength, the circulators are controlled by a IGBT based device with the latest NPT technology. The specific characteristics are as follows:

• sinusoidal PWM modulation

• High carrier frequency to eliminate any audio band noise

• 32 bit dedicated DPS processor

• “space vector” optimized algorithm

Setting has been made user friendly thanks to an intuitive and functional user interface. The simplified backlit display on the control panel, with three simple navigation keys, a pull-down menu in line with the latest mobile phone trends, and a wide range of functions make the BPH-E circulator a revolutionary product. A reliable a sturdy construction combined to the modern and innovative design completes the product even from an aesthetical point of view.  

Hot or cold water circulation pump with in-line ports, suitable for installation directly on the pipework of on civil and industrial heating, air conditioning, refrigeration, and sanitary water plants. Particularly versatile thanks to the use of the MCE/C inverter, offering performance features capable of automatically adapting to the different needs of the system, keeping a consistent differential pressure.

 

CONSTRUCTION FEATURES OF THE PUMP

 

Pump body and motor support in cast iron. PN 10 flanged suction and delivery ports with threaded holes for control manometers. To make replacement in existing systems easier, the pump can accept PN 6 counter flanges.

Technopolymer impeller.

Carbon/ceramic mechanical seal.

The pumps are available both in the single (KLME-KLPE) and in the twin (DKLME-DKLPE) versions.

For the single version a built in clapet valve in the delivery port is also included, to avoid water recirculation when the unit is idle. A blind flange is also supplied as a standard, to be used during maintenance of one of the two motors. The twin version gives the possibility of alternating the operation of the pumps when a backup unit is required, or to have the two pumps operating simultaneously.

 

CONSTRUCTION FEATURES OF THE MOTOR

 

External ventilation cooling, closed, asynchronous type, with four poles for the KLME and DKLME versions, and two poles for the KLPE and DKLPE versions. Rotor running on permanently lubricated ball bearings, oversized to ensure low noise and durability. 

Built-in thermo-amperometric protection.

Construction according to CEI 2-3.

 

CONSTRUCTION FEATURES OF THE ELECTRONICS: MCE/C INVERTER

 

MCE/C inverters are the latest technological achievement of the DAB inverter range. They represent a new generation of inverters for use with circulation pumps, and set themselves apart due to ease of use, power, simplicity of installation and management. MCE/C inverters have been designed for managing circulation pumps. By allowing a simple adjustment of the differential pressure, they give the possibility of adjusting the performance of the circulation pump to the actual system requirements. They are fitted on the fan cover of the motor. This makes the installation of the pump with MCE/C particularly easy and quick. The protection class of the MCE/C is IP55. The easy of programming is guaranteed by the use of a simple and intuitive interface, similar to Dialogue electronic circulators, and a graphic display. MCE/C inverters have a double micro-processor construction that guarantees maximum efficiency and reliability.

A reliable and sturdy construction, together with a modern and innovative design, complete the product, also in terms of aesthetic value. MCE/C inverters protect the motor and the pump, and increase their life, by eliminating hammering effects and making the pump rotate at the minimum number of rotations capable of meeting the requirements of the user. In addition, electric pumps controlled by the MCE/C inverter are environmentally friendly. In fact, by ensuring that the pump only uses the power that is strictly necessary for meeting the needs of the users, electricity consumption is strongly reduced when compared with fixed speed pumps. It is possible to create twin units by using the appropriate cable for the connection of MCE/C inverters.