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Summary of Contents for Lutz B70H
- Page 1 Translation of the original instructions HORIZONTAL ECCENTRIC SCREW PUMP Type B70H Read this operating instructions before start up! To be retained for future reference.
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Page 2: Table Of Contents
4.1 Transport ..........................14 4.2 Storage ............................. 14 5. Installation/Assembly and connection .................... 14 5.1 Assembly B70H ......................... 15 5.2 Electrical connection of three-phase motors ................16 5.3 Operating a three-phase motor with attached frequency converter ........17 5.4 Mechanical loads on the pump tube ..................18 6. -
Page 3: Concerning This Manual
1. Concerning this manual This manual • is part of this product • is valid for all mentioned series • describes the safe and proper use in all operating stages 1.1 Terms User: Single person or organisation who is using the products e.g. customer, user, assistant 1.2 Target groups Target group Task... -
Page 4: Warnings And Symbols
What to do → Cross reference Requirement Tab. 4: Symbols and meaning 1.5 Latest state Please find the latest state of this operating instruction under www.lutz-pumpen.de. 1.6 Copyright The content of this operating instruction and the images contained in them are subject to the copyright protection of Lutz Pumpen GmbH. -
Page 5: Safety
2. Safety The manufacturer will not be held responsible for any damages resulting from non-compliance of the overall documentation, in particular for damages in case of non-compliance of the operating instructions. 2.1 General safety information Observe following regulations before accomplishing all activities. Product safety The pump is constructed in conformity with the state of the art and approved safety-related standards. Danger however can occur during use for life and health of the user or third parties or damage of the pump and other material assets. Therefore: • Operate the pump only in a technically sound state, for its proper use, and conscious of safety and hazards taking into account these instructions. -
Page 6: Proper Use
• Ensure that the electric motor is disconnected before you carry out assembly and maintenance work. • After completing all the work on the motor, remount the safety devices in accordance with specifications. 2.2 Proper use Each Lutz eccentric screw pump of series B70H comprises a 3-phase or a compressed air motor and a pump tube. The flow rate and delivery head depend on the selected pump size. This means that the most appropriate pump can be chosen for each individual application. The apparatus is provided for commercial use only. -
Page 7: Technical Data
• Note the limit values for temperature and viscosity of the liquid being pumped (→ technical data). • The pump may only be operated with the discharge closed, if a bypass valve with return line has been installed. • Ensure that the safety valves for the protection of the pump against inadmissible increase of pressure are not higher set than the maximum operating pressure (→ technical data). • For the protection of the pump sealing the pump is not allowed to run dry. This must be permanently controlled by the operator. If the product and supplied accessories are used for other purposes than the intended purpose, it is the responsibility of the user to check the suitability and admissibility. Product use not confirmed in writing by the manufacturer absolves the manufacturer of any liability. -
Page 8: Operation In Hazardous Location Or Pumping Flammable Liquids
2.2.2 Operation in hazardous location or pumping flammable liquids DANGER Danger of explosion when using in explosion hazard area The classification of flammable liquids is made according to regulation (EC) 1272/2008 (CLP). When pumping flammable liquids, the operational safety regulation and the following points have to be observed: ► The operator must create an explosion protection document for his field of application. This document must indicate the division of the explosive area into zones. Only devices of category 1 may be used in areas of zone 0 and devices of category 1 or 2 in areas of zone 1. The pumps are used to pump liquid products from mobile vessels. The pump corresponds to category 2 when used as intended. • Only use pumps with ATEX-identification. • Only operate the pump in filled condition. • Only use explosion-proof drive motors. Select motors suitable for the respective size with a power of up to 2 kW and a maximum speed of 900 rpm. • Only pump flammable liquids of explosion protection groups IIA and IIB and, depending on the marking, temperature classes T1 to T4. - Page 9 • Before starting up, the pump must be integrated into the equipotential bonding, i.e. equipotential bonding of the pump tube with the tank, equipotential bonding of the motor with the tank or with the pump tube if pump tube and drive motor are not conductively connected with each other. The container must be grounded separately if not already given by the type of installation. Establish equipotential bonding between container to be emptied and filled, e.g. with earthing lead or by conductive ground which is conductively connected with both containers. If necessary, other accessories must also be integrated to the equipotential bonding (→ Fig. 1). Fig. 1 Legend: (1) Equipotential bonding cable, (2) explosion-proof connector, (3) conductive hose, (4) conductive substrate, (5) conductive connection from hose to hose connector, (6) pump tube for zone 1, (7) explosion-proof motor for zone 1, (8) earth potential, (9) suitable container for using flammable liquids...
- Page 10 • When assembling / disassembling the pump tube to / from the motor, check the coupling and the synthetic ring for wear and replace, if necessary (→ Fig. 2). • Only use mechanical seals provided by Lutz Pumpen for this pump when used in hazardous areas. • Only motors and mechanical seals may be used which are suitable for operation in the respective direction of rotation.
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Page 11: Specific Danger
Prevention of obvious misapplication (examples) • Observe and comply with the operating limits of the pump concerning temperature, pressure, delivery rate (→ contract data sheet, → technical data). • The power consumption of the pump increases with increasing viscosity of the liquid. To prevent an overload of the pump, coupling and motor, comply with the permissible viscosity (→ technical data). A lower viscosity is allowed. • Motors may only be operated mounted to the pump tube (→ operating instructions motor). • Use hoses only in perfect and tested condition (→ operating instructions hose lines). 2.3 Specific danger Explosion hazard area → Chapter 2.2.2 - Operation in hazardous location or pumping flammable liquids • Only use pump tubes with ATEX approval. -
Page 12: Configuration And Function
3. Confi guration and function 3.1 Identifi cation Rating plate Rating plate pump tube (example) Pump type Serial number of the pump Year of construction of the pump (last two digits of the serial number e.g. -18 for 2018) CE-Identifi cation Rating plate pump tube for explosion hazard areas (example) Pump type Serial number of the pump ATEX-Identifi cation Year of construction of the pump (last two digits of the serial number e.g. -18 for 2018) CE-Identifi cation... -
Page 13: Configuration
3.2 Configuration Each Lutz eccentric screw pump of series B70H comprises a 3-phase or a compressed air motor and a pump tube. The flow rate and delivery head depend on the selected pump size. This means that the most appropriate pump can be chosen for each individual application. Drive units for type B70H Three-phase drives For series B70H several three-phase motors are available: → Operating instructions for three-phase motors Three-phase drives with frequency converter To optimally adjust the volume flow and desired pumping head of an eccentric screw drum pump, three- phase motors with attached frequency converter are available. -
Page 14: Transport And Storage
4. Transport and storage 4.1 Transport Unpacking and checking condition of delivery ► Unpack the pump tube on receipt and check for transport damages. ► Report transport damages to the manufacturer immediately. ► Check that the consignment is complete as ordered. WARNING Stator sleeve may release from the pump tube and fall on people nearby! ►... -
Page 15: Assembly B70H
WARNING Persons can fall over the pump, hose line, grounding cable or wiring! ► Position the pump and the accessories visibly for all persons or cordon off a sufficient area around the pump. 5.1 Assembly B70H 3 Motor is switched off 3 A shut-off device is available on the container WARNING Risk of injury by crushing! ► When mounting the motor on the pump tube, hold the motor in such a way that no limbs can be squeezed between the motor and the pump tube. -
Page 16: Electrical Connection Of Three-Phase Motors
► When used in explosion hazard areas or when pumping flammable liquids, the pump must be mounted with an upwardly inclined pump outlet to prevent accidental emptying of the container (→ Fig. 7 a, b, c). If the orientation of the pump outlet does not match, loosen the locknut and slightly turn the pump tube. Then tighten the locknut again (→ Fig. 7 d). Alternatively, you can mount a check valve at the pump outlet. Fig. 7 ► Tighten screws (→ Fig. 8). ► Connect pump and container with suitable hoses. Fig. 8 5.2 Electrical connection of three-phase motors DANGER Live mains connection! Electric shock can kill you. -
Page 17: Operating A Three-Phase Motor With Attached Frequency Converter
NOTICE Incorrect rotating direction may damage the mechanical seal and lead up to leakage! ► For pumps with clockwise rotating direction-dependent mechanical seals (→ Fig. 10), motor’s direction of rotation must correspond to the direction of rotation arrow (→ Fig. 11). Reconnect the motor as necessary. Fig. 10 Fig. 11 5.3 Operating a three-phase motor with attached frequency converter Default setting: Button Start starts the pump... -
Page 18: Mechanical Loads On The Pump Tube
5.4 Mechanical loads on the pump tube The pump tube’s functioning and service life are impaired when deformed by mechanical loads. For this reason, the outlet must not be subjected to compressive or tensile forces. ► The bending moment MB at the outlet must not exceed 50 Nm (→ Fig. 12). -
Page 19: Direction Of Flow
►The pump is said to run dry if it continues to operate without pumping any liquid whatsoever. Dry running must be avoided. This can be ensured by remaining in attendance or with the aid of such technical means as a flow monitor, etc. 6.4 Operation with closed discharge DANGER Injury by flying parts! The eccentric screw pump B70H is a positive displacement pump. The pump must not be operated with closed shutoff elements, such as nozzle, valve, etc. The generated overpressure can lead to damages. Make sure that the maximum pressure will not be exceeded (→ technical data). 6.5 Malfunction WARNING Pinching by rotating parts! ►In case of malfunction or unreproducible downtime, disconnect the motor from the mains before repair... -
Page 20: Taking Out Of Operation
(→ Fig. 16). ► Repairs should only be made by the manufacturer or authorized Lutz dealers. ► Only use original Lutz Pumpen spare parts. If other spare parts are used, liability on the part of Lutz Pumpen is obsolete. ► Setting values of the mechanical seal must be strictly adhered to as this may result in impermissible heating. -
Page 21: Assembling The Stator
8.3 Assembling the stator WARNING If the locking clip is loose or incorrectly mounted, the stator sleeve is not secured against twisting. This can result in: - inadmissible heating. There is an explosion risk in explosion hazard areas! - increased wear. - twisting the hose line. -
Page 22: Disposal
WARNING Danger of poisoning and environmental damage from liquid or oil! ► Always wear protective equipment when working on the pump. ► Before disposing the pump: - Leaking liquid and oil must be contained and separately disposed according to the locally applicable regulations. - Residues of liquid in the pump must be neutralized. ► Remove the non-metallic parts and dispose them according to the locally applicable regulations. ► Dispose the pump according to the locally applicable regulations. 10. Traceability Products for potentially explosive atmospheres are identified by an individual serial number. Lutz Pumpen ensures the traceability of this device up to the initial point of delivery according to ATEX Directive. All persons who redeliver the device are obliged to guarantee its traceability to enable subsequent recall actions. -
Page 23: Declaration Of Conformity
II 2 G Ex h IIB T4 Gb -20 < Ta < +60°C: II 2 G Ex h IIB T3 Gb Person authorised to compile the technical file: Lutz Pumpen GmbH, Erlenstraße 5-7, D-97877 Wertheim Wertheim, 18.07.2018 Heinz Lutz, CEO... - Page 24 Lutz Pumpen GmbH Erlenstraße 5-7 D-97877 Wertheim Tel. (+49 93 42) 8 79-0 Fax (+49 93 42) 87 94 04 e-mail: info@lutz-pumpen.de http://www.lutz-pumpen.de Subject to technical changes. 07/2020 Order No. 0698-451 Printed in Germany / Dru.
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