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Series S
Stainless Steel Positive Displacement Rotary Lobe Pumps
Operating Manual
M/101/0211
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EC Declaration of Incorporation The designating company Alfa Laval Company Name Birch Road, Eastbourne, East Sussex BN23 6 PQ Address Phone: (01323) 412555 Fax: (01323) 412515 Phone and Fax No. We hereby declare that the following machinery is intended for installation into a machine or to be assembled with other machines into a machine. It must not be put into service until the machinery into which it is incorporated has been declared in conformity with the provisions of the Machinery Directive
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EC Declaration of Conformity The designating company Alfa Laval Company Name Birch Road, Eastbourne, East Sussex BN23 6 PQ Address Phone: (01323) 412555 Fax: (01323) 412515 Phone and Fax No. We hereby declare that the following machinery conforms to the machinery directive 89/392/EEC as amended by 91/368/EEC, 93/44/EEC and 93/68/EEC and to the following other relevant directives. The machinery has been designed and manufactured in accordance with the transposed harmonised European standards; Eu
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Table of contents The information contained herein is correct at the time of issue but may be subject to change without prior notice. 1. General description ............................................................................. 8 1.1 General description ........................................................................ 8 2. Safety .................................................................................................... 9 2.1 Important information .........................
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1. General description 1.1 General description The Series S pump supplied is a positive displacement rotary lobe pump; it may be supplied with or without a drive unit (see Drive unit drawing). The drawing shown indicates various parts of the pump unit. Gearbox The Series S range has a universal gearbox design in models Product S1 - 4. This enables the flexibility of mounting pumps with the seal area inlet and outlet ports in either a vertical or horizontal plane. The Ports port orientation, vert
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2. Safety 2.1 Important information 2.2 Warning signs Unsafe practices and other important information are emphasized in this manual. Warnings are emphasized by means of special signs. Always read the manual before using the pump! WARNING! Indicates that special procedures must be followed to avoid severe personal injury. CAUTION! Indicates that special procedures must be followed to avoid damage to the pump. NOTE! Indicates important information to simplify or clarify practices. General warning
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2.3 Safety precautions 2. Safety All warnings in the manual are summarised on this page. Pay special attention to the instructions below so that severe personal injury or damage to the pump are avoided. Installation - Always Always Always Always Always observe the technical data (see chapter 5). - Never Never Never Never Never start in the wrong direction of rotation with liquid in the pump. - Never Never Never Never Never put your hands or fingers inside the port connections or anywhere close t
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3. Installation 3.1 Unpacking, Handling and Storage Step 1 Refer to the pump weights guide (chapter 5) before selecting and using any lifting gear. The drawings show how the pump should be lifted. Ensure that lifting equipment is correctly rated and used within these limits. Pump with drive unit Bareshaft pump Step 2 On receipt always: - Check the delivery note against the goods received. - If motorised, check that the drive instructions are available. - Inspect the packing for signs of damage i
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3.2 System design and installation 3. Installation Step 1 When designing the pumping system: - Confirm the Net Positive Suction Head requirements of the Discharge line pump (NPSHr) are met by the system, as this is crucial for ensuring the smooth operation of the pump and preventing cavitation. - Avoid suction lifts and manifold/common suction lines for two pumps running in parallel, as this may cause vibration or cavitation. - Protect the pump against blockage from hard solid Plan view objects
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3. Installation 3.2 System design and installation Step 3 - continued Table of Maximum Forces and Moments Pump Forces Moments Model FZ FY FX EF MZ MY MX EM S1 Forces N 80 60 70 120 lbf 18 13 16 27 Moments Nm 75 90 115 165 lbft 55 66 85 122 S2 Forces N 125 100 110 195 lbf 28 22 25 44 Moments Nm 90 105 130 190 lbft 66 77 96 140 S3/4 Forces N 165 135 150 260 lbf 37 30 34 58 Moments Nm 100 115 140 205 lbft 74 85 103 151 S5/6 Forces N 300 250 250 460 lbf 67 56 56 103 Moments Nm 125 145 175 26
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3.2 System design and installation 3. Installation Step 5 The pump will not be supplied pre-filled with oil therefore this Pump Operating Temperature table must be used to select recommended oil. o -20°C to +130°C +130 C to 200°C Oil changing: Oil level must be checked with the pump static. (-4°F to +266°F (+266°F to 392°F) First change: After 150 hours of operation, thereafter every BP Energol GR - XP150 BP GRS15 3000 hours of operation. Castrol Alpha SP150 Castrol Alpha SN150 Oil filling: Fill
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3. Installation 3.3 Flushed seal arrangements and pre-start up checks Step 1 A flushed seal arrangement is fitted in order to cool or clean the seal area. It is important that: - The flush is correctly connected (see below). - A compatible flushing fluid is used and supplied at the correct pressure and flow rate. - The flush is turned on at the same time/prior to starting the pump, and turned off at the same time/after stopping the pump. Step 2 Connecting the flush The following equipment is str
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3.3 Flushing seal arrangement 3. Installation and pre-start up checks Step 4 Flushing fluid The choice of flushing fluid is dependent upon the fluid being pumped and duty conditions i.e. pressure and temperature. Usually water is used for cooling or flushing water soluble products. For advice on selecting a suitable flushing fluid please contact pump supplier. Step 5 Flusing pressure and flow rate Single mechanical seal 0.5 bar (7 psi) maximum. Any further increase in pressure will result in lip
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4. Maintenance 4.1 Cleaning in place (CIP) The pump can be manually cleaned or cleaned in place (CIP). The following is an example of a typical CIP procedure. However specific advice for each application should be sought from the pump supplier. Typical CIP procedure 1. Flush through the system with cold water or bore water (6°) (43°F). 2. Run hot caustic soda (70-80°C) (158-176°F) at 2.5% dilution through the system for 20-30 minutes. 3. Final flush through with cold water again. Warnings - Neve
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4.2 Maintenance schedule 4. Maintenance It is advisable to install pressure gauges on both sides of the pump so that any problems within the pump/pipework can be monitored. Maintenance schedule Your weekly schedule should include: - Checking the oil level in the gearcase with the pump stationary. - Checking the seals for leakage and replacing as necessary. - Checking the oil seals for leakage. - Check pumping pressures. In certain operational circumstances the pump will pose a thermal hazard and
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4. Maintenance 4.3 Disassembly Step 1 Before disassembling the pump refer to safety precautions. See exploded view drawings (chapter 6). Removing rotorcase cover Remove rotorcase cover nuts (13) and cover (12). Step 2 Removing rotors 1. Insert a plastic/wooden block between the two rotors (17) to stop them turning. 2. Remove rotor retention nuts (22) and rotors. Pump models S6 rotors are retained by torque locking assemblies, TLA’s (19) and can be removed by: - Loosening each TLA screw in severa
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4.3 Disassembly 4. Maintenance Step 5 Removing seal retainers 1. Remove screws (15). 2. Then remove seal retainers (14) - as a liquid sealant has been used a lever may be required to remove retainers. 3. The lip seals (16) can be removed using a screwdriver/ lever once the seal retainers are removed. It is essential to renew the lip seals and it is recommended that new gaskets or sealant be used prior to reassembly. Step 6 Removing Gearcase Cover 1. Remove screws (6). 2. Remove gearcase cover (5
