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A750-04-880

Issue F Original

Instruction Manual

ATEX Category 1, 2 and 3 EHR

and SHR Liquid Ring Vacuum Pumps

Содержание ATEX 1 EHR

Страница 1: ...A750 04 880 Issue F Original Instruction Manual ATEX Category 1 2 and 3 EHR and SHR Liquid Ring Vacuum Pumps...

Страница 2: ...ety requirements Part 2 Vacuum pumps EN12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction EN13463 1 2009 Non electrical equipment for use in potentially ex...

Страница 3: ...ty requirements Part 2 Vacuum pumps EN12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction EN13463 1 2009 Non electrical equipment for use in potentially exp...

Страница 4: ...ty requirements Part 2 Vacuum pumps EN12100 2010 Safety of machinery General principles for design Risk assessment and risk reduction EN13463 1 2009 Non electrical equipment for use in potentially exp...

Страница 5: ...ATEX Category 1 2 and 3 pumps 17 3 4 Pumping system design 17 3 4 1 General 17 3 4 2 Oxygen monitoring ATEX Category 2 and 3 pumps only 17 3 5 Sealing liquid and seals flush supply system design 18 3...

Страница 6: ...es ATEX Category 1 and 2 pumps 33 5 6 Replenish the bearings with grease 33 5 7 Overhaul the pump 33 5 8 Fault finding 33 6 STORAGE AND DISPOSAL 35 6 1 Storage 35 6 1 1 Preparation 35 6 1 2 Short term...

Страница 7: ...e pumps 8 7 Typical performance data and sealing liquid flow rates two stage pumps 9 8 Noise data 10 9 Vibration data 10 10 Sealing seals flush liquid supply data 11 11 External seals flush liquid flo...

Страница 9: ...pecifies that the related data or other information applies to both the standard model pump and the corresponding ATEX Category 1 2 and 3 model pumps You must use your pump as specified in this manual...

Страница 10: ...e pumps have been designed using the principle of constructional safety which ensures that potential ignition sources are eliminated during normal operation for ATEX Category 3 in the event of an expe...

Страница 11: ...on ATEX Category 3 pumps are fitted with an ATEX rating label containing the following information The notations used in these ratings are as follows 1 3 2 Temperature classification The temperature c...

Страница 12: ...hermal machines and for applications that use water as the sealing liquid the temperature rise across the pump is approximately 5 o C The temperature rise is directly proportional to the specific heat...

Страница 13: ...quirements of Section 3 3 On ATEX Category 2 pumps configured for external seals flush supplies the seals flush supplies must comply with the requirements of Section 2 6 ATEX category 2 pumps configur...

Страница 14: ...ndustries and applications You must ensure that the pump is suitable for your application If you have any doubts as to the suitability of the pump for your application refer to the Edwards guidelines...

Страница 15: ...efer to your System Manual for the specific details of your pump system Table 5 Performance Data Ambient operating temperature range 20 to 40 o C Ambient storage temperature range 30 to 50 oC Maximum...

Страница 16: ...1145 20 6 5 SHR 1950S C D 980 37 5 800 37 1450 37 1550 25 7 0 SHR 11500S C D 735 75 1100 64 2000 64 2300 46 12 0 SHR 11850S C D 735 90 1300 84 2400 83 2950 66 14 0 SHR 12500S C D 585 110 3000 96 4000...

Страница 17: ...42 9 5 SHR 21200S C D 735 75 1350 40 1950 43 1850 50 14 0 SHR 21500S C D 735 75 1750 56 2500 59 2400 61 14 0 SHR 21850S C D 735 90 2600 65 3250 72 3300 80 16 0 SHR 22500S C D 585 132 4110 85 4450 93 4...

Страница 18: ...Typical continuous A weighted emission sound pressure level dB plus uncertainty Nominal pump rotational speed Measured at 1 metre free field EHR 2102S C D 2170S C D 80 3 EHR 2190S C D 2290S C D 2390S...

Страница 19: ...ressure When the vapour pressure of the sealing liquid is close to the process inlet pressure the liquid sealing ring can start to boil and this may result in cavitation Cavitation occurs when vapour...

Страница 20: ...on Casings Grey cast Iron Spheroidal graphite ductile cast iron Impellers Spheroidal graphite ductile cast iron Spheroidal graphite ductile cast iron Shaft Stainless steel 420 Stainless steel 420 Dist...

Страница 21: ...Body Seals N A N A PREN Cr 3 3 Mo 16 N 40 Table 13 Materials of construction process contact parts SHR S C D pumps Component Cast iron Spheroidal graphite ductile iron Casings Grey cast Iron Spheroida...

Страница 22: ...olyester urethane Silicone Manual valves Body Seals Ball Stainless steel 316 PTFE Ball Stainless steel 316 PTFE Aluminium bronze Super duplex stainless steel Casings Nickel aluminium bronze 25 Chrome...

Страница 23: ...irectives 94 9 EC and 99 92 EC in order for the external ATEX certification to apply Your vacuum system design must ensure that the inlet of the pump is protected from the ingress of particles larger...

Страница 24: ...minated components If your pumping system has already been used vent and purge it before you start installation work Ensure that the installation technician is familiar with the safety procedures whic...

Страница 25: ...eneral The gases to be pumped must not contain particles larger than those specified in Table 2 If necessary incorporate an inlet filter in the inlet pipeline to the pump to prevent the ingress of sol...

Страница 26: ...d to install an ATEX Category 1 or 2 pump configured for internal seals flush supplies in a supply system your system design must ensure that The sealing liquid supply to the pump is clean If you need...

Страница 27: ...2 All rights reserved Page 19 Edwards and the Edwards logo are trademarks of Edwards Limited INSTALLATION A750 04 880 Issue F Figure 1 Recommended sealing liquid and seals flush supply system configur...

Страница 28: ...Partial recirculation system C Once through system Alternative options Only applicable to ATEX Category 1 and 2 pumps configured for external seals flush supplies on ATEX Category 2 pumps configured...

Страница 29: ...outlet pipeline 19 Fresh sealing liquid is supplied to the reservoir 14 through the float operated fill top up valve 15 A mixture of fresh and recovered sealing liquid from the reservoir is then supp...

Страница 30: ...nting platform then disconnect the lifting equipment 3 Fit suitable bolts through the fixing bolt holes in the mounting feet to secure the pump in position Refer to the System Manual for the locations...

Страница 31: ...a suitable earth ground to prevent static electrical discharges during operation Refer to the System Manual for the size and location of the earth ground stud on the pump WARNING On ATEX Category 1 2...

Страница 32: ...eter not less than the pump inlet outlet diameter Support the pipelines to prevent loading of the inlet outlet joints on the pump The loads on the inlet and outlet must not exceed the maximum loads sp...

Страница 33: ...r not supplied as described below Refer to the general assembly drawings in the documentation pack supplied with your pump for the location of the temperature transmitter port Also refer to the instru...

Страница 34: ...the correct direction 5 If you have removed the guard over the drive coupling or belt as in Step 1 above refit the guard 3 16 Check the leak tightness of the system 3 16 1 General requirements Check t...

Страница 35: ...ise there will be a risk of explosion during pump operation Carry out the pressure rise test as follows 1 Evacuate the process system to a pressure just lower than the normal operating pressure 2 Isol...

Страница 37: ...example the sealing liquid supply pipeline when the pump is operating Where necessary wear ear defenders The pump can be noisy during operation refer to Section 2 4 4 2 Start up 1 Refer to Figure 1 d...

Страница 38: ...uid hammer is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly This can occur when the flow rate of sealing liquid into the pump is too high Ref...

Страница 39: ...he pump has been heated to 260 oC and above These breakdown products are very dangerous Fluorinated materials in the pump may include greases and seals The pump may have overheated if it was misused i...

Страница 40: ...ions 5 Inspect all of the sealing liquid and seals flush liquid supply system components pipelines and connections and check that they are not damaged or corroded and that they do not leak 5 4 Check t...

Страница 41: ...the vent You must use a high quality lithium based grease according to DIN51825 K2K 30 Refer to the documentation pack supplied with your pump for the locations of the grease points and bearing vents...

Страница 42: ...the sealing liquid supply is as specified in Section 2 6 Is the direction of pump rotation incorrect Check the direction of pump rotation and correct as necessary refer to Section 3 15 Is there a leak...

Страница 43: ...let and sealing liquid connections and on ATEX Category 1 and 2 pumps configured for external seals flush supplies only over the seals flush connections 5 Use suitable lifting equipment to move the pu...

Страница 44: ...u turn the drive shaft through three or four revolutions to turn the pump and prevent seizure When required for use Flush the pump with a suitable cleaning solution to remove any corrosion inhibitor f...

Страница 45: ...AGE AND DISPOSAL A750 04 880 Issue F Take particular care with the following Components that have been contaminated with dangerous substances Sealing seals flush liquid that has been contaminated with...

Страница 47: ...you order state for each part required Model and Item Number of your equipment Serial number Item Number and description of part 7 2 Service Edwards products are supported by a world wide network of...

Страница 49: ...harmonised standards The functional safety of your safety related control system must meet the minimum requirements for the combined equipment group and category and must perform the functions as des...

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