Commercial air conditioning
Commercial heating
Commercial water pressure boosting
District cooling
District heating
Vertical, multistage centrifugal pump with inlet and outlet ports on same the level (inline). The pump head and base
are in cast iron – all other wetted parts are in stainless steel. A cartridge shaft seal ensures high reliability, safe
handling, and easy access and service. Power transmission is via a rigid split coupling. Pipe connection is via DIN
flanges.
The pump is fitted with a 3-phase, fan-cooled asynchronous motor.
Further product details
Steel, cast iron and aluminium components have an epoxy-based coating made in a cathodic electro-deposition
(CED) process.
CED is a high-quality dip-painting process where an electrical field around the products ensures deposition of paint
particles as a thin, well-controlled layer on the surface.
An integral part of the process is a pretreatment.
The entire process consists of these elements:
1) Alkaline-based cleaning.
2) Zinc phosphating.
3) Cathodic electro-deposition.
4) Curing to a dry film thickness 18-22 my m.
The colour code for the finished product is NCS 9000/RAL 9005.
Pump
A long split coupling connects the pump and motor shaft. It is enclosed in the motor stool by means of two coupling
guards. The long coupling makes it possible to replace the shaft seal without removing the motor from the pump.
The motor stool connects the pump head and motor. The pump head has a combined 1/2″ priming plug and vent
screw.
The pump is fitted with a balanced O-ring seal unit with a rigid torque-transmission system.
This seal type is assembled in a cartridge unit which makes replacement safe and easy.
Due to the balancing, this seal type is suitable for high-pressure applications.
The cartridge construction also protects the pump shaft from possible wear from a dynamic O-ring between pump
shaft and shaft seal.
Seal faces:
• Rotating seal ring material: silicon carbide (SiC)
• Stationary seat material: silicon carbide (SiC)
This material pairing is used where higher corrosion resistance is required. The high hardness of this material pairing
offers good resistance against abrasive particles.
Secondary seal material: EPDM (ethylene-propylene rubber)
EPDM has excellent resistance to hot water. EPDM is not suitable for mineral oils.
The shaft seal is retained in the pump head by a cover and screws. It can be replaced without removing the motor.
The chambers and impellers are made of stainless-steel sheet. The chambers are provided with a PTFE neck ring
offering improved sealing and high efficiency. The impellers have smooth surfaces, and the shape of the blades
ensure a high efficiency.
The base is made of cast iron. Both the inlet and the outlet side of the base have two pressure gauge tappings. The
pump is secured to the foundation by four bolts through the base plate. The flanges are fastened to the base by
means of locking rings.
Motor
The motor is a totally enclosed, fan-cooled motor with principal dimensions to IEC and DIN standards. The motor is
flange-mounted with free-hole flange (FF).
Motor-mounting designation in accordance with IEC 60034-7: IM B 5 (Code I) / IM 3001 (Code II).
Electrical tolerances comply with IEC 60034.
The motor efficiency is classified as IE3 in accordance with IEC 60034-30-1.
The motor has thermistors (PTC sensors) in the windings in accordance with DIN 44081/DIN 44082. The protection
reacts to both slow- and quick-rising temperatures, e.g. constant overload and stalled conditions.
Thermal switches must be connected to an external control circuit in a way which ensures that the automatic reset
cannot cause accidents. The motors must be connected to a motor-protective circuit breaker according to local
regulations.
A variable speed drive makes adjustment of pump performance to any duty point possible. If the motor is to be
connected to a variable speed drive, the pump must be ordered with an electrically insulated motor bearing.
Liquid:
Pumped liquid: Water
Liquid temperature range: -30 .. 120 °C
Selected liquid temperature: 20 °C
Density: 998.2 kg/m³
Technical:
Pump speed on which pump data are based: 2960 rpm
Rated flow: 45 m³/h
Rated head: 262.6 m
Pump orientation: Vertical
Shaft seal arrangement: Single
Code for shaft seal: HQQE
Approvals: CE,EAC,UKCA,SEPRO
Approvals for drinking water: WRAS,ACS
Curve tolerance: ISO9906:2012 3B
Materials:
Base: Cast iron
EN 1563 EN-GJS-500-7
ASTM A536 80-55-06
Impeller: Stainless steel
EN 1.4301
AISI 304
Bearing: SIC
Support bearing: Graflon
Installation:
Maximum ambient temperature: 55 °C
Maximum operating pressure: 33 bar
Max pressure at stated temp: 33 bar / 120 °C
33 bar / -30 °C
Type of connection: DIN
Size of inlet connection: DN 80
Size of outlet connection: DN 80
Pressure rating for connection: PN 40
Flange size for motor: FF400
Electrical data:
Motor standard: IEC
Motor type: SIEMENS
Rated power – P2: 45 kW
Power (P2) required by pump: 45 kW
Mains frequency: 50 Hz
Rated voltage: 3 x 380-420D/660-725Y V
Rated current: 78/45 A
Starting current: 690 %
Cos phi – power factor: 0.89
Rated speed: 2960 rpm
IE efficiency: IE3 94,0%
IE Efficiency class: IE3
Motor efficiency at full load: 94.0 %
Motor efficiency at 3/4 load: 94.5 %
Motor efficiency at 1/2 load: 94.4 %
Number of poles: 2
Enclosure class (IEC 34-5): IP55
Insulation class (IEC 85): F
Motor No: 81U15336
Controls:
Frequency converter: None
Others:
Terminal box position: 6
Minimum efficiency index, MEI ≥: 0.70
Net weight: 464 kg
Gross weight: 566 kg
Shipping volume: 1.24 m³
Danish VVS No.: 385907132
Finnish LVI No.: 4925506
Country of origin: GB
Custom tariff no.: 84139100
