BPH/DPH are wet rotor circulators. They are designed for the circulation of water in civil and commercial conditioning and heating systems. The BPH/DPH (two pole motor) e BMH/DMH (four pole motor) circulator motor shaft can be manually deblock. BPH and BMH are the version with the single motor while BMH e DMH corresponds to the circulators in the twin configuration. Flanged suction and delivery ports. All the models have an air vent plug. The twin version is supplied as standard with an automatic suction type valve incorporated in the delivery port to avoid water recirculating through the unit when it is not running; and a blank flange for servicing either of the two motors.

APPLICATIONS

Pump for the circulation of water in residential and industrial collective heating and air conditioning systems. All the models are available both in the single and twin 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, ethylenepropylene 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

Product compliant with European Standards EN 60335-2-51