GRUNDFOS DATA BOOKLET NB125-25/263 AS-F2-A-BAQE Grundfos pump 9832195 Thank you for your interest in our products. Please contact us for more information, or visit our website https://www.lenntech.com/grundfos/nb/9832195/nb-125-25-263-as-f2-a-e-baqe.html info@lenntech.com tel. +31 152 61 9 fax. +31 152 616 289 BE > THINK > INNOVATE
Position Qty. Description 1 NB 125-25/263 AS-F2-A-E-BAQE Product No.: On request Non-self-priming, single-stage, centrifugal volute pump designed according to ISO 5199 with dimensions and rated performance according to EN 733 (1 bar). Flanges are PN 16 with dimensions according to EN 192-2. The pump has an axial suction port, radial discharge port, horizontal shaft and a back pull-out design enabling removal of the motor, motor stool, cover and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is close-coupled to a fan-cooled asynchronous motor. Further product details The back pull-out design means that the pump can be serviced by a single person without disturbing the pump housing or pipe work. The pump is to be secured to the foundation with bolts through the pump housing feet and motor feet. The pump is delivered with steel support blocks enabling horizontal alignment of the pump and ensuring a minimum clearence of 5 mm between the motor stool/motor flange and the foundation. Cast-iron parts 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 9/RAL 95. Pump The pump housing has both a priming and a drain hole closed by plugs. The impeller is a closed impeller with double-curved blades with smooth surfaces. The impeller is statically balanced according to ISO 194-1 class G6.3 and hydraulically balanced to compensate for axial thrust. Wear rings used in pump housing and for impeller are made of bronze/brass or cast iron. Motor stool and pump cover are made of cast iron (EN-GJL-25). Coupling guards are fitted to the motor stool. The pump cover is provided with a manual air vent screw for venting of the pump housing and the shaft seal chamber. The pump is fitted with an unbalanced rubber bellows seal with torque transmission across the spring and around the bellows. Due to the bellows, the seal does not wear the shaft, and the axial movement is not prevented by deposits on the shaft. Primary seal: Rotating seal ring material: carbon graphite, metal-impregnated Stationary seat material: silicon carbide (SiC) This material pairing has a very good corrosion resistance and is especially suitable for water up to 12 C. However, seal life will be reduced at temperatures above 9 C. The material pairing is not recommended for liquids containing particles as this will result in heavy wear on the SiC face. Secondary seal material: EPDM (ethylene-propylene rubber) 1/11
Position Qty. Description EPDM has excellent resistance to hot water. EPDM is not suitable for mineral oils. Motor The motor is a totally enclosed, fan-cooled motor with principal dimensions to IEC and DIN standards. Electrical tolerances comply with IEC 634. The motor efficiency is classified as IE3 in accordance with IEC 634-3-1. The motor has thermistors (PTC sensors) in the windings in accordance with DIN 4481/DIN 4482. 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. Technical data Liquid: Pumped liquid: Water Liquid temperature range:.. 12 C Liquid temperature during operation: 2 C Density: 998.2 kg/m³ Technical: Rated flow: Rated head: Actual impeller diameter: Impeller nom: Primary shaft seal: Secondary shaft seal: Curve tolerance: Materials: Pump housing: Impeller: Shaft: Rubber: Wear ring mat.: 61 m³/h 77.2 m 263 mm 25 mm BAQE NONE ISO996:212 3B Cast iron EN-GJL-25 ASTM A48-4 B Cast iron EN-GJL-2 ASTM A48-3 B Stainless steel 1.431 34 EPDM High alloy brass(cuzn34mn3ai2 Installation: Maximum ambient temperature: 55 C Maximum operating pressure: 16 bar Flange standard: EN 192-2 Pump inlet: DN 15 Pump outlet: DN 125 Pressure rating: PN 16 Electrical data: Motor type: SIEMENS IE Efficiency class: IE3 Rated power - P2: 16 kw Mains frequency: 5 Hz Rated voltage: 3 x 38-42D/66-725Y V Rated current: 28-255/162-148 A Starting current: 78-78 % 2/11
Position Qty. Description Cos phi - power factor:.92 Rated speed: 298 rpm Efficiency: IE3 95,6% Motor efficiency at full load: 95.6-95.6 % Motor efficiency at 3/4 load: 95.6-95.6 % Motor efficiency at 1/2 load: 95.1-95.1 % Number of poles: 2 Enclosure class (IEC 34-5): 55 Dust/Jetting Insulation class (IEC 85): F Lubricant type: Grease Others: Minimum efficiency index, MEI :.55 ErP status: EuP Standalone/Prod. Net weight: 121 kg Gross weight: 129 kg Shipping volume: 1.72 m³ 3/11
On request NB 125-25/263 AS-F2-A-E-BAQE 5 Hz H [m] NB 125-25/263, 3*4 V, 5Hz eta [%] 1 9 263 mm 8 7 6 5 1 4 8 3 6 2 4 1 2 5 1 15 2 25 3 35 4 45 5 55 6 P [kw] Q [m³/h] NPSH [m] 15 P1 P2 3 1 2 5 1 4/11
8 x 19 8 x 23 299 216 58 28 12 264 8 4 16 28 471 177 125 14 Description General information: Value H [m] NB 125-25/263, 3*4 V, 5Hz eta [%] Product name: NB 125-25/263 AS-F2-A-E-BAQE Product No: On request EAN number: On request Technical: Rated flow: 61 m³/h Rated head: 77.2 m Actual impeller diameter: 263 mm Impeller nom: 25 mm Primary shaft seal: BAQE Secondary shaft seal: NONE Shaft diameter: 42 mm Curve tolerance: ISO996:212 3B Pump version: AS Materials: Pump housing: Cast iron EN-GJL-25 ASTM A48-4 B Impeller: Cast iron EN-GJL-2 ASTM A48-3 B Shaft: Stainless steel 1.431 34 Material code: A Rubber: EPDM Code for rubber: E 1 9 8 7 6 5 4 3 2 1 263 mm 1 2 3 4 5 P [kw] 15 1 5 Q [m³/h] P1 P2 1 8 6 4 2 3 2 1 NPSH [m] Wear ring mat.: High alloy brass(cuzn34mn3ai2 Installation: Maximum ambient temperature: 55 C Maximum operating pressure: 16 bar Flange standard: EN 192-2 Pump inlet: DN 15 Pump outlet: DN 125 Pressure rating: PN 16 Wear ring(s): neckring(s) Connect code: F2 Liquid: Pumped liquid: Water Liquid temperature range:.. 12 C Liquid temperature during operation: 2 C Density: 998.2 kg/m³ Electrical data: Motor type: SIEMENS IE Efficiency class: IE3 Rated power - P2: 16 kw Mains frequency: 5 Hz Rated voltage: 3 x 38-42D/66-725Y V Rated current: 28-255/162-148 A Starting current: 78-78 % Cos phi - power factor:.92 Rated speed: 298 rpm Efficiency: IE3 95,6% Motor efficiency at full load: 95.6-95.6 % Motor efficiency at 3/4 load: 95.6-95.6 % Motor efficiency at 1/2 load: 95.1-95.1 % Number of poles: 2 Enclosure class (IEC 34-5): 55 Dust/Jetting Insulation class (IEC 85): F Motor protec: PTC Motor No: 83U15448 Mount. design. acc. IEC 34-7: IM B35 15 8 x 19 14 471 177 16 28 TO AMPLIFIER RELAY TO AMPLIFIER RELAY 66 +T L1 299 +T +T +T L1 L2 L3 +T +T L2 L3 14 374 315 515 35 IEC TP211 THERMALLY PROTECTED WHEN THE THERMISTORS ARE 8 x 23 CONNECTED TO AMPLIFIER RELAY FOR CONTROL OF MAIN SUPPLY 315 THERMISTORS PTC ACCORDING TO DIN 4482 125 16 8 28 4 12 264 355 25 216 58 58 5/11
Description Value Lubricant type: Grease Others: Minimum efficiency index, MEI :.55 ErP status: EuP Standalone/Prod. Net weight: 121 kg Gross weight: 129 kg Shipping volume: 1.72 m³ 6/11
On request NB 125-25/263 AS-F2-A-E-BAQE 5 Hz 15 315 515 25 355 14 471 177 125 16 8 4 12 58 315 58 299 28 216 66 374 35 8 x 19 16 28 14 8 x 23 264 Note! All units are in [mm] unless others are stated. Disclaimer: This simplified dimensional drawing does not show all details. 7/11
Exploded view 251a 251d 77 28 7 7a 17 31a 219 92 31a 11 9 92 51 11b 15 1 215a 215 66a 67 49 45 18 53a 53 215a 217 531a 534 531 534a 6 8/11
Sectional drawing (TM582 for TPE2,TPE3) 5 4 3 2 1 TM582 9/11
Exploded view ( TM5726 for MGE model H/I ) 251d 251b 291 29 293 287 287a 52 277a 273b 277 252a 286 273a 273 275a 266 268 268a 289a 289 251a 288b 288 288a 252b 159e 157 158 15 156c 156 151 152 172 154 185 178 156d 187 153 188 191 156c 156b 192 159d 1/11
Parts list NB 125-25/263, Product No. On request Valid from 1.3.21 (19) Pos Description Annotation Données de classification Référence Quantité Unité + Motor 1 pcs - Nut 1 pcs 66 Washer 1 66a Spring lock washer 1 67 Nut Thread: M25 1 - Motor stool cpl. 1 pcs 1.a Motor stool 1 7 Coupling guard 2 77a Pan head screw 4 - Pump housing cpl. 1 pcs 6 Pump housing 1 66a Nut Thread: M12 1 - Shaft cpl. 1 pcs 11 Key 1 51 Stub shaft 1 89.a Socket set screw Length (mm): 1 3 Thread: M8 17 Air vent screw 1 pcs - 2 Plug 1 pcs 2 Plug 2 49 Impeller 1 pcs 72.a O-ring Diameter: 278,99 1 pcs Material type: EPDM Thickness: 3,53-77 Cover 1 pcs 77 Cover 1 15 Shaft seal Material type: BAQE 48 MM SHAFT 1 pcs 11/11
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