Grundfos Vertical Multistage Centrifugal Pump (Flow Rate: 30 m³/h , Head189 m, 2951 rpm)
- Brands: Grundfos
- Store Name: Sultan Engineering Company
- Product Code: CRN 32-13
- Availability: In Stock
Vertical, multistage centrifugal pump with suction and discharge ports on same the level (in-line) enabling installation in a horizontal one-pipe system. Pump materials in contact with the liquid are in high-grade stainless steel. A cartridge shaft seal ensures high reliability, safe handling and easy service and access. Power transmission is via a split coupling. Pipework 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.
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 air vent screw.
The pump is fitted with a balanced O-ring seal unit with 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.
Primary seal: -
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: FKM (fluorocarbon rubber) FKM has excellent resistance to oils and chemicals. Above 90 °C, FKM should only be used in media without water.
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 surface, and the shape of the blades ensure a high efficiency.
The pump has a stainless steel base mounted on a separate base plate. The base and base plate are kept in position by the tension of the staybolts which hold the pump together. Both the suction and the discharge 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.
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. 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.
The motor can be connected to a variable speed drive for adjustment of pump performance to any duty point. Grundfos CUE offers a range of variable speed drives. Please find more information in Win-/WebCAPS.
GENERAL TECHNICAL DATA
|Product name||CRN 32-13-2 A-F-G-V-HQQV|
|Speed for pump data:||2951 rpm|
|Rated flow:||30 m³/h|
|Rated head:||189 m|
|Curve tolerance:||ISO 9906:1999 Annex A|
|Pump housing: Stainless||Stainless steel
DIN W.-Nr. 1.4408
AISI 316 LN
DIN W.-Nr. 1.4401
|Code for rubber:||V|
|Maximum ambient temperature:||328 K|
|Max pressure at stated temp:||30 bar / 90 °C
30 bar / -20 °C
|Pipe connection||DN 65|
|Pressure stage:||PN 16 / PN 25 / PN 40|
|Flange size for motor:||FF350|
|Liquid temperature range:||253 .. 363 K|
|Liquid temp:||293 K|
|IE Efficiency class:||IE3|
|Number of poles:||2|
|Rated power - P2:||30 kW|
|Power (P2) required by pump:||30 kW|
|Mains frequency:||50 Hz|
|Rated voltage:||3 x 380-420D/660-725Y V|
|Rated current:||56,0-51,0/32,0-29,5 A|
|Starting current:||660-660 %|
|Cos phi - power factor:||0,9|
|Rated speed:||2955 rpm|
|Motor efficiency at full load:||93,3-93,3 %|
|Motor efficiency at 3/4 load:||93,6-93,6 %|
|Motor efficiency at 1/2 load:||93,4-93,4 %|
|Enclosure class (IEC 34-5):||55 (Protect. water jets/dust)|
|Insulation class (IEC 85):||F|
|Minimum efficiency index, MEI ≥:||0.7|
|Net weight:||346 kg|
|Gross weight:||397 kg|
|Shipping volume:||0.88 m3|