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SKW / SKF-2015-09-ENG
Original document language: English

Installation, operation and maintenance

instructions for Flowrox Slurry 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.O. Box 338

FI-53101 Lappeenranta, Finland

Tel. +358 (0)201 113 311 Fax +358 (0)201 113 300

E-mail: [email protected]

www.flowrox.com

Содержание SKF Series

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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