Table of Contents
Related Manuals for OBL MB Series
Summary of Contents for OBL MB Series
- Page 1 SERIE SERIES MECHANICAL DIAPHRAGM METERING PUMPS SPRING RETURN JOB N° ENGLISH PUMP TYPE SHEET ELECTRIC ACTUATOR TYPE OVERALL DRAWING MB/MC 16 MB/MC Z-Z9 17 MECHANISM SECTIONAL DRAWINGS PUMPHEAD SECTIONAL DRAWING ENCLOSED ITEM SERIAL/No...
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Page 2: Table Of Contents
PUMP CLEANING TECHNICAL CHARACTERISTICS MODEL NUMBER GENERAL CHARACTERISTICS 1.1 - DESCRIPTION OF THE PUMP 1.2 - FLOW RATE 1.3 - MANUAL ADJUSTMENT 1.4 - MOTOR CHARACTERISTICS 1.5 - DIAPHRAGM STRUCTURE INSTALLATION 2.1 - CORRECT INSTALLATION OF THE PUMP 2.2 - SUCTION LINE 2.3 - SUCTION SIDE FILTER 2.4 - SUCTION PIPING FOR VISCOUS LIQUIDS 2.5 - DISCHARGE LINE... -
Page 3: Pump Cleaning
C A U T I O N ! INFORMATION FOR CUSTOMERS OBL s.r.l. welcome pumps despatched to our premises for servicing. Basic suggestion for pump cleaning MANDATORY REQUIREMENT A - Close terminal box cover and seal cable entry with PG plugs. -
Page 4: Technical Characteristics
MECHANICAL DIAPHRAGM METERING PUMPS TECHNICAL DATA CONNECTIONS VALVE THREADED FLANGED 50 Hz MB.11 CML 5 VP 7 3/8” BSPF DN15 1/2”ANSI 150#RF MB.16 CML 5 VP 7 3/8” BSPF DN15 1/2”ANSI 150#RF CM 7 VP 7 3/8” MB.23 BSPF DN15 1/2”ANSI 150#RF MB.31 CM 7 VP 7... -
Page 5: Model Number
AISI 316L PP32 PP CONSTRUCTION + HASTELLOY C VALVE - INCOLOY 825 SEAT VALVE SEAL VITON (FPM) VITON (FPM) VITON (FPM) VITON (FPM) OBL ELECTRIC ACTUATOR 3÷15 PSI PNEUMATIC ACTUATOR VALVE HOUSING AISI 316L UNI-DIN FLANGED CONNECTIONS DIAPHRAGM TEFLON (PTFE) -
Page 6: General Characteristics
GENERAL CHARACTERISTICS DESCRIPTION OF THE PUMP Fig. 1 The OBL’s metering pumps “MB/MC” series are con- • trolled-volume reciprocating pumps. The crank gear is driven by an electric motor and the strokes per minute of the diaphragm are given by an integral, oil-splash-lubricated , endless screw/wormwheel reduction gear (fig.1). -
Page 7: Manual Adjustment
0,24/037 63/71 0,24/037 63/71 DIAPHRAGM STRUCTURE DIAPHRAGM SECTIONAL VIEW • The OBL's unique (patented) mechanical diaphragm design ensures controlled volumetric displacement, giving Sectional view without Complete sectional view with plunger-like performances. plastic support ring. plastic support ring. Thus the flow rate is virtually unaffected by the working pressure variations. -
Page 8: Installation
INSTALLATION INSTRUCTIONS FOR A PROPER INSTALLATION Provide with adequate clearance areas and safe access for operation and mainte- • Fig. 6 ASSEMBLING AREA nance, in particular in front of the hydraulic side and of the adjustment knob (fig. 6). • If the pump is installed outdoors, a shelter is recommend, specially when the pump is equipped with electric actuators or other delicate devices. -
Page 9: Suction Side Filter
WRONG RIGHT Fig. 7/B Wrong Right Irregular suction Wrong Right Right Wrong Suggested installation Wrong Suggested installation Acceptable installation SUCTION SIDE FILTER The installation of a filter on the suction side is always recommended, particularly when the liquid to be metered contains suspended particles. •... -
Page 10: Suction Piping For Viscous Liquids
SUCTION PIPING FOR VISCOUS LIQUIDS Specific technical information is required for the installation of pumps intended for • Table E metering viscous liquids. S.P.M. cp max execution "A" - For this kind of application we recommend stainless steel pumpheads. 2000 1500 - The suction piping must have an adequate diameter;... -
Page 11: Relief Valve
SAFETY VALVE Fig. 11 ON OFF VALVE CAUTION ! Mechanical diaphragm metering pumps absolutely need the installation of a relief valve; a pressure higher than the rating plate value would SAFETY VALVE break the mechanism. The safety valve has to be installed immediately after the discharge connection, anyhow •... -
Page 12: Installation Of The Pressure Gauge
INSTALLATION OF THE PRESSURE GAUGE In order to check if the metering pump operates correctly, it is essential to install a pres- • Fig. 13 sure gauge on the discharge line (fig. 13). DRAIN VALVE PRESSURE GAUGE The pressure gauge shows the actual working pressure of the metering pump. This •... -
Page 13: Startup
STARTUP BEFORE THE STARTUP BEFORE THE STARTUP VERIFY THE FOLLOWING CONDITIONS: • Make sure that the baseplate is made of steel, stable and even. Do not install the pump directly on a concrete foundation. • Fix the pump to the baseplate using the specific anchor holes in the pump feet. •... -
Page 14: Possible Troubles During Startup
• The suction hydrostatic head exceeds the discharge pressure: Increase the discharge pressure by means of a back pressure valve. (OBL, series 300). • Back pressure valve stuck in open position because of foreing matters, or pressure setting too low respect to the suction head: Check . -
Page 15: Maintenance
MAINTENANCE ROUTINE MAINTENANCE Check the oil level periodically (fig. 16). • Fig. 16 Change the oil every 10.000 operating hours. • OIL FILLING UP OIL WINDOW OIL DRAINING Fig. 17 PROPER ARRANGEMENT OF: In case of lower or irregular flow rate, -Valves pos. -
Page 16: Preventive Maintenance
PREVENTIVE MAINTENANCE We suggest the purchasing of a series of essential details • Table G for the preventive maintenance of diaphragm pump head EXECUTION (HEAD BODY MATERIAL) (table G). A AISI 316L DENOMINATION POSITION PIECES NO. POSITION PIECES NO. DIAPHRAGM VALVE SEATS VALVE GUIDES VALVE... -
Page 17: Operating Troubles
OPERATING TROUBLES FLOW RATE LOWER THAN EXPECTED CAUSES SOLUTIONS • Air enters the suction piping through the fittings: Check. • Air trapped inside the pump: For a short while, keep flow rate to maximum . • Excessive suction head lift: Reduce it. -
Page 18: Mb/5.2 -Mc Overall Drawings
PUMP OVERALL DRAWINGS Adjustment: With 0 -10 scale micrometer knob FLANGED Flow rates: 11÷50 L/h (stroke 2mm.) ● CONNECTIONS 35÷155 L/h (stroke 4mm.) ● Motors: Threephase 0,20 kW - 230/400 V - 50/60 Hz ● 4 poles -IP55 - CL F - IEC34-1 Special flange motor Singlephase 0,24/0,37 kW - 230 V - 50/60 Hz ●... -
Page 19: Mb/Mc Z-Z9 Overall Drawings
PUMP WITH ELECTRIC ADJUSTMENT OVERALL DRAWINGS MB MC • Motors: Threephase 0,20/0,30 kW - 230/400 V 50/60 Hz - 4 Poles - IP55 - CL F - IEC34-1 Special flange motor MANUAL ADJUSTMENT ADJUSTMENT READING • Singlephase 0,24/37 kW FLANGED 230 V - 50/60 Hz - 4 Poles CONNECT. - Page 20 MB MC MECHANISM Pumphead sectional drawings PP1 1 Head Construction Head Construction PP11 - SEAT: AISI 316 L - BALL: AISI 316 L PP32 - SEAT: INCOLOY 825 - BALL: HASTELLOY C-276...
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Page 21: Sectional Drawings
MB MC SECTIONAL DRAWING POS. MECHANISM COMPONENTS VALVE SEAT VALVE GUIDE O-RING O-RING VALVE HOUSING VALVE THREADED STUB LIQUID END SCREW DIAPHRAGM YOKE FLANGE RING NUT O-RING WASHER PUMP HOUSING SLIDE SPRING ECCENTRIC SHAFT ADJUSTMENT SPINDLE GUIDE KNOB GEAR CASING MOTOR OIL FILLING PLUG OIL WINDOW... -
Page 22: General Safety Norms
METERING PUMPS MACHINE DIRECTIVE EUROPEAN COMMUNITY DIRECTIVE 98/37/CE AND SUBSEQUENT MODIFICATIONS GENERAL SAFETY NORMS Please read and save these instructions. INSTRUCTIONS ABOUT THE RESIDUAL RISKS ELIMINATION AND THE SAFETY AT WORK WARNING: 1 - INSTALLATION 3 - ELECTRICAL CONNECTIONS Do not start the pump without a - The pump has to be - For a proper connection of the electrical safety valve. -
Page 23: Declaration Of Conformity
METERING PUMPS CE CONFORMITY DECLARATION OBL s.r.l. 20090 Segrate - MILANO - Via Kennedy, 12 - Tel. +39 02 269191 - Fax +39 2 2133893 - E mail: info@obl.it Modello/Model/Modele/Modell/Modelo/Modelo/Model/Model/Typ/Model/Malli/ S E R I E S MECHANICAL DIAPHRAGM MB/MC METERING PUMPS DICHIARAZIONE DI CONFORMITA’... - Page 24 > > > OBL_Metering Pumps OBL s.r.l. 20090 Segrate - MILANO Via Kennedy, 12 Tel. +39-02.269191 Fax +39-02.2133893 info@obl.it...