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DISCLAIMER 

ALL INTELLECTUAL PROPERTY RIGHTS TO THIS MANUAL (“MANUAL”) BELONG TO FLOWROX OY 
(”FLOWROX”) WHICH REMAINS THE SOLE OWNER OF THESE RIGHTS. OWNERSHIP OF THESE RIGHTS 
ARE NOT TRANSFERRED FROM FLOWROX TO ANYONE IN CONNECTION WITH THIS MANUAL. THIS 
MANUAL IS INTENDED TO BE USED ONLY BY FLOWROX´S CUSTOMER AND EXCLUSIVELY FOR THE 
PURPOSES OF THE AGREEMENT UNDER WHICH THIS MANUAL IS DELIVERED TO FLOWROX´S 
CUSTOMER. WITHOUT THE PRIOR WRITTEN EXPLICIT CONCENT FROM FLOWROX, NO PART OF THIS 
MANUAL SHALL BE USED, REPRODUCED, COPIED, TRANSLATED,CONVERTED, ADAPTED, STORED IN 
A RETRIEVAL SYSTEM , COMMUNICATED OR TRANSMITTED BY ANY MEANS, OR FOR ANY 
COMMERCIAL OR OTHER PURPOSES, INCLUDING , BUT NOT LIMITED TO, SALE, RESALE, LICENS, 
RENT OR LEASE.  

THIS MANUAL PROVIDES INSTRUCTIONS TO CARRY OUT CERTAIN ACTIVITIES AND IS DESIGNED AND 
MEANT TO GUIDE AND ASSIST PROFESSIONAL AND PROPERLY TRAINED EXPERTS IN PERFORMING 
THEIR FUNCTIONS. EVERYONE MUST BECOME FAMILIAR WITH ALL INSTRTUCTIONS IN THIS MANUAL 
BEFORE ANY INSTALLATION, USE, MAINTENANCE, REPAIR OR ANY OTHER ACTIONS OF THE 
RESPECTIVE GOODS AND/OR SERVICES WHICH THIS MANUAL APPLIES TO. ALL INSTRUCTIONS MUST 
BE FOLLOWED CAREFULLY.  HOWEVER, OBSERVANCE OF ANY PART OF THE INSTRUCTIONS 
PRESENTED IN THIS MANUAL MAY BE OMITTED IN EVENT WHEN IT IS REQUIRED OR ALLOWED BY 
LAW 

FLOWROX HAS TAKEN EVERY CARE IN THE PREPARATION OF THE CONTENT OF THIS MANUAL, BUT 
DOES

 

NOT MAKE ANY REPRESENTATIONS, WARRANTIES OR GUARANTEES OR, EXPRESS OR IMPLIED, 

AS TO THE ACCURACY OR COMPLETENESS OF THIS MANUAL. ALL USERS MUST UNDERSTAND AND BE 
AWARE THAT UPDATES AND AMENDMENTS WILL BE MADE FROM TIME TO TIME TO THIS MANUAL. 
ALL USERS ARE OBLIGATED TO FIND OUT AND DETERMINE WHETHER THERE HAVE BEEN ANY 
APPLICABLE UPDATES OR AMENDMENTS TO THIS MANUAL. NEITHER FLOWROX NOR ANY OF ITS 
DIRECTORS, OFFICERS, EMPLOYEES, SUBCONTRACTORS, SUB-SUPPLIERS, REPRESENTATIVES OR 
AGENTS SHALL BE LIABLE IN CONTRACT, TORT OR IN ANY OTHER MANNER WHATSOEVER TO ANY 
PERSON FOR ANY LOSS, DAMAGE, INJURY, DEATH, LIABILITY, COST OR EXPENSE OF ANY NATURE, 
INCLUDING WITHOUT LIMITATION INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, PUNITIVE OR 
DIRECT DAMAGES AND/OR LOSSES ARISING OUT OF OR IN CONNECTION WITH THE CREATION, 
DELIVERY, POSSESSION AND/OR USE OF THIS MANUAL. HOWEVER, NOTHING IN THIS PARAGRAPH IS 
DEEMED TO EXCLUDE OR RESTRICT ANY LIABILITY WHICH CANNOT BY MANDATORY LAW BE 
EXCLUDED. 

FLOWROX IS THE TRADEMARK OF FLOWROX OY REGISTERED IN FINLAND AND IN OTHER 
COUNTRIES. ALL OTHER TRADEMARKS, LOGOS, BRANDS AND MARKS DISPLAYED IN THIS MANUAL 
ARE PROPERTY OF THE RESPECTIVE OWNERS UNLESS STATED OTHERWISE. 

Copyright © 2015 Flowrox Oy. All rights reserved. 

 

 

 

Summary of Contents for SKF Series

Page 1: ...Knife Gate valves SKW DN50 600 Wafer and SKF DN80 600 Flanged These instructions must be read carefully and understood prior to the installation use and servicing of this product N O T E FLOWROX OY P...

Page 2: ...ONS PRESENTED IN THIS MANUAL MAY BE OMITTED IN EVENT WHEN IT IS REQUIRED OR ALLOWED BY LAW FLOWROX HAS TAKEN EVERY CARE IN THE PREPARATION OF THE CONTENT OF THIS MANUAL BUT DOES NOT MAKE ANY REPRESENT...

Page 3: ...Valve installation 16 4 4 Flushing installation guidelines 17 5 VALVE OPERATION 20 5 1 Commissioning and decommissioning 20 5 2 Flushing 20 6 SERVICING AND MAINTENANCE 21 6 1 General maintenance and c...

Page 4: ...hine Decree koneasetus Annex IIB partly complete machine No conformity with directive when valve is actuated manually Atex Directive 94 9 EC Conformity to directive declared only if Ex and CE are mark...

Page 5: ...re using the product Prevent accidents and ensure the valve s appropriate operation by complying with the installation safety and maintenance instructions in this manual Installation and maintenance o...

Page 6: ...s this will lead to premature failure The valve temperature and pressure range must not be exceeded The temperature ranges are given in Table 2 for standard sleeve materials Check the pressure class f...

Page 7: ...l it reaches the fully closed position When the valve is fully closed the ring sleeves push against both sides of the gate effectively sealing and completely containing the line pressure Any medium di...

Page 8: ...Ring sleeves are easily replaced and are available in a number of molded elastomer options to suit different conditions The gate speed may not exceed 25mm s 2 2 2 Mechanical structure SKW and SKF valv...

Page 9: ...loled view of SKW valve Table 3 SKW valve part list Part Qty Description Part Qty Description 1 1 Valve body 10 Bottom cover bolt 2 1 Gate 11 Bottom cover washer 3 1 Tower 12 1 Bottom cover plate 4 2...

Page 10: ...ploled view of SKF valve Table 4 SKF valve part list Part Qty Description Part Qty Description 1 1 Valve body 10 Bottom cover bolt 2 1 Gate 11 Bottom cover washer 3 1 Tower 12 1 Bottom cover plate 4 2...

Page 11: ...Knife Gate valve Wafer SKF Flowrox Slurry Knife Gate valve Flanged 50 600 M handwheel MG manual with gearbox A pneumatic AU pneumatic with pneumatic spring H hydraulic E electric 10 10 bar 2 DIN PN10...

Page 12: ...matic actuator noise level may exceed 85 dB and it is recommended to use ear protectors when working near the valve Hydraulic actuators have a minimum supply pressure of 150 bars Electric actuators ha...

Page 13: ...to prevent contamination of the cylinders 6 Protect valve ring sleeves from heat light and exposure to ozone 7 Cover the flange openings 8 Do not store any objects on the rubber ring sleeves 9 Follow...

Page 14: ...nly personnel with appropriate training are allowed to install the valves If the valve is delivered without an actuator or accessories they must be installed in accordance with the manufacturer s inst...

Page 15: ...weight of the pipe The valve must never be used to support the pipes The valve can be installed in any position other than below horizontal Flushing will not work in installations below horizontal lev...

Page 16: ...OPEN position Follow these Installation steps 1 Disconnect automatic actuator from power supply if connected 2 Install the safety guards and required accessories to the valve 3 Lift the valve on plac...

Page 17: ...2 M27 1 1 4 7 UNC Figure 9 Flange bolt tightening example 4 4 Flushing installation guidelines Never use the valve with all flushing ports plugged If the medium is harmful in any way the flushing port...

Page 18: ...e flushing connections are used depending on the process A flow indicator can be installed to the flushing line for easier function check out In flushing example 1 the valve protective plugs 9 are rem...

Page 19: ...d to one side and drained from the other side of the valve It is necessary to have a shut off valve B on the upstream or supply side of the flush water line to prevent water running constantly This ca...

Page 20: ...hydraulic devices actuators according to the local regulations and the instructions given by the part or device manufacturer Collect and dispose dangerous process media so that people and environment...

Page 21: ...matic actuators equipped with a mechanical spring can cause injury to people and equipment if cylinder actuates unintentionally Lifting equipment must be used for valves weighing over 25kg Do not step...

Page 22: ...n Examine the flushing and drainage Every two months Clean the gate Every two months Reduces the ring sleeve and gland packing wear Examine the gate for erosion Every two months Examine the valve for...

Page 23: ...ed to lubricate these valves as the elastomer ring sleeves will swell and disintegrate Lubricate both sides of the valve approximately every 50 cycles or after long periods of infrequent cycling Greas...

Page 24: ...bolts 5 that attach the tower 3 to the body 1 Lift the actuator tower 3 and gate 2 off as one package The secondary seal 7 might come up with the gate 2 5 Remove the secondary seal 7 6 Clean the space...

Page 25: ...d for valves weighing over 25kg 5 Remove the flange connection bolts and lift the valve to a suitable working surface 6 Lift the ring sleeves 4 out from the valve body and inspect for visible damage s...

Page 26: ...detach the gate 2 from the actuator stem remove retaining ring 17 and the clevis pin 16 from the clevis 14 Figure 13 Removing the clevis pin 5 Clean the gate 2 and inspect it for deep scars and transf...

Page 27: ...the ring sleeves 4 from the valve body and inspect for visible damage such as cuts slits or erosion grooves Depressions and evident flat spots are also to be taken as signs of damage Change ring sleev...

Page 28: ...seal 7 in the sealing slot with the possible sealing lip facing towards valve bore Apply recommended silicon lubricant to any inner contours and outside of the new secondary seal 2 Install grease nip...

Page 29: ...own in the Figure 16 3 Fit the actuator and possible adapter plate on the top of the tower 3 using the correct bolts and nuts 4 Assemble the clevis 14 to the actuator stem if it was dismounted 5 Strok...

Page 30: ...matic actuator from power supply to prevent injuries 6 Remove retaining ring 17 from the clevis pin 16 and remove the clevis pin 7 Push the gate 2 down to get space for the clevis 14 to turn 8 Loosen...

Page 31: ...l Valve does not open close or valve is not tight Fault in actuator limit switch or control system Check and fix actuator operation Clogged up with solids Clean gate and body cavity Check or install f...

Page 32: ...57 61 200 112 628 683 739 80 350 110 513 24 22 48 G1 2 100 57 61 230 132 648 725 751 100 350 120 513 30 28 51 G1 2 150 64 68 285 157 921 972 879 150 350 176 513 42 49 64 G1 2 200 76 80 346 188 1006 1...

Page 33: ...0 110 513 32 31 57 G 1 2 100 175 179 230 132 640 725 751 100 350 120 513 39 41 64 G 1 2 150 178 182 285 157 913 972 879 150 350 176 513 41 66 80 G 1 2 200 184 188 346 188 1006 1115 972 200 350 220 513...

Page 34: ...FLOWROX OY P O Box 338 FI 53101 Lappeenranta Finland Tel 358 0 201 113 311 Fax 358 0 201 113 300 E mail sales flowrox com www flowrox com...

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