InproOil Supply

Inpro Oil transfer unit MR-3U

The Inpro MR-3U is a self-priming gear pump oil transfer unit designed for fuel oils, lubricants, and greases. It features a 3/8" connection and measures 351.5 mm in length, suitable for industrial fluid handling…

SKU 3G-CBM-00102

Also listed as: ALI 05020 · ALI-05020

Brand

Inpro

Item

Oil transfer unit MR-3U

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

Inpro

type

Gear pump - self-priming 

dimension a

351.5 mm 

dimension b

174 mm 

dimension g

90 mm 

dimension h

125.5 mm 

applications

Fuel oils, lubricants, animal and vegetable greases 

connection f

3/8" 

Datasheet Content

Chauffage

SÉRIE R-UNIVERSAL
Pompes à Engrenages




Description

  Electropompes volumétriques à                 Applications: huiles combustibles,
  engrenages. Auto-aspirante. Avec              lubrifiants, graisses animales et végétales,
  soupape de sécurité intégrée.                 etc.

  Divers versions: R-UNIVERSEL avec un
  moteur Standard et, possible version
  moteur ATEX.

Données téchniques
Profondeur max. d’aspiration                    Degré de protection
7 m.c.a                                         IP-54 Isolement Classe F À la demande IES
Temperature max. de líquide                     Tension
110°°C                                          Monophasé 230 V ±10%
                                                Triphasé 230/400 V ±10%
Moteur                                          Condensateur
Selon les normes IEC. Protection thermoampère   Condensateur dans la boîte à bornes
avec réarmement automatique (monophasé).

Matériaux
Corps du pompe                                  Garniture mécanique
En fonte GG-20                                  Différentes versions
Turbine                                         Roulements
Engrenage en Acier                              2R-S lubrifier a vie
Arbre                                           Corps d’aspiration et de refoulement
En Acier                                        En fonte GG-20
Accessoires
Accumulateur               Pressostats                                  Systèmes de contrôle
                           - Pressostat mecánique                       - Régulateurs de pression et de vitesse
                           - Pressostat électrónique




Dimensions
 TYPE       A     B        C       D         E           F        G      H
(M)R-3 U   351,5 174      56       141       58         3/8”      90    125,5
(M)R-5 U   351,5 174      56       141       58         3/4”      90    125,5
M)R-10 U   422,5 185      67       160       60          1”       100 160,5
R-16 U     420,5 185      67       160       60          1”       100 158,5
R-17 U     494    200     94,5     170       66       1”¼ DN 32   125 175,5
R-25 U     551    215     104      200       74       1”¼ DN 32   140   210
R-35 U     551    215     104      200       74       1”¼ DN 32   140   210
R-50 U     551    215     104      200       74       1”¼ DN 32   140   210

R-65 U     576    265     104      212       86       1”¼ DN 32   140   217
R-100 U    712    265 130,5 300 187,5 2”½ DN 65 140 317,5
R-140 U    712    265 130,5 300 187,5 2”½ DN 65 140 317,5

  TYPE       A        B        C         D        E           F    G         I    J      K      a      b      c
OR-250                      175        172        685    DN-80    250     310    165    12     180    70

R-250       216    178      175        172        675    DN-80    250     310    165    12     180    70     102

ER-250      216    140      175        172        645    DN-80    250     310    165    12     180    70     102

OR-400                      188        210        795   DN-100    250     350    198    14     254    121

R-400       216    178      175        172        675   DN-100    305     350    198    14     254    121    83

SR-400      216    140      175        172        645   DN-100    305     350    198    14     254    121    83

R-600       216    178      235        172        675   DN-100    305     350    258    14     254    121    83

Technical Documents

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Technical Document 1

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Inpro Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the Inpro MR-3U oil transfer unit used for?

The Inpro MR-3U is a self-priming gear pump oil transfer unit designed for handling fuel oils, lubricants, and animal or vegetable greases. It is suitable for industrial fluid handling operations requiring reliable transfer capabilities, such as in heating systems or lubrication circuits.

What are the specifications of the Inpro MR-3U?

The Inpro MR-3U features a self-priming gear pump with a 3/8" connection and overall length of 351.5 mm. It handles fluids up to 110 °C, has a maximum suction depth of 7 m.c.a, and is available with IP-54 protection and Class F insulation. Motor options include single-phase 230 V or three-phase 230/400 V.

Where to buy the Inpro MR-3U in Singapore?

3G Electric supplies the Inpro MR-3U oil transfer unit to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for a quotation and lead time on this self-priming gear pump.

How to install the Inpro MR-3U oil transfer unit?

Install the Inpro MR-3U on a stable, level surface within the pump's maximum suction depth of 7 m.c.a. Ensure the electrical supply matches the motor voltage (single-phase 230 V or three-phase 230/400 V). Use the 3/8" connection for inlet and outlet piping, and verify the integrated safety valve is correctly set.

Used in

Common applications for Inpro

Industrial heating systems — Inpro VD2 LR-2.2 low-pressure burner fuel unit with integral regulation for oil-fired boiler and furnace ignition control

Centralised oil-supply networks — Inpro MR-5U self-priming gear pump and TANKALERT SMS ultrasonic tank alarm for distributed lubrication and fuel-transfer operations

Burner fuel circuits — Inpro Series 202 diesel filter with 100–44 µm cartridge for pre-filtration of heavy fuel oil upstream of burner nozzles

Emergency gas-supply shutdown — Inpro hammer-and-chain tool and cabinet window for rapid access to gas regulation cabinets (GAZ70009, GAZ70011) in plant emergencies

Industrial pump stations — Inpro VDU5L23 suction-line pump with 150 µm strainer and 2 bar return-line rating for large-tank fuel-supply systems

Remote tank monitoring — Inpro TANKALERT SMS IP67 ultrasonic sensor with GSM/GPRS connectivity for automated oil-tank level reporting across distributed facilities

Inpro Products

3G Electric supplies Inpro oil supply. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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