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SKF 700-1200-2016-02-ENG
Original document language: English
Installation, operation and maintenance
instructions for Flowrox Slurry Knife Gate
valves SKF DN700 –1200 (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: sales@flowrox.com
www.flowrox.com
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Table of Contents
Related Manuals for FLOWROX SKF DN700
Summary of Contents for FLOWROX SKF DN700
- Page 1 SKF 700-1200-2016-02-ENG Original document language: English Installation, operation and maintenance instructions for Flowrox Slurry Knife Gate valves SKF DN700 –1200 (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.
- Page 2 PRESENTED IN THIS MANUAL MAY BE OMITTED IN EVENT WHEN IT IS REQUIRED OR ALLOWED BY 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.
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Page 3: Table Of Contents
TABLE OF CONTENTS DIRECTIVE CONFORMANCE DECLARATIONS ..........4 General safety instructions ................ 5 INTRODUCTION ................6 Applications and purpose of use ..............6 2.1.1 Restrictions on use for SKF valves ............. 6 2.1.2 Using the valve in explosive conditions ............6 General description ................. -
Page 4: Directive Conformance Declarations
Conformance declarations for accessories (solenoid valve, limit switches etc.) and actuators are supplied separately in component documentation. Risk analysis responsible employee at Flowrox Oy is Jarmo Partanen. On behalf of Flowrox Oy In Lappeenranta, 19 July 2013... -
Page 5: General Safety Instructions
(goggles, helmet, clothing and gloves). Always follow the factory safety regulations. In case of any discrepancies between translations, the English version shall prevail. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 6: Introduction
2 INTRODUCTION 2.1 Applications and purpose of use Flowrox Slurry Knife Gate valves (SKF) are intended for industry medium and slurry applications. They are bi-directional and are installed between flat flanges to shut-off or open flow within instructed temperature and pressure limits. -
Page 7: General Description
2.2 General description 2.2.1 Principle of operation Flowrox SKF valves are built with a cast or welded body and feature a heavy-duty stainless steel gate as a standard structure. Removable ring sleeves on both sides of the gate provide a bi-directional bubble tight seal. -
Page 8: Mechanical Structure
(MG) should be avoided because of the very high number of handwheel revolutions needed. It is not a practical solution. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. - Page 9 SKF valve part list is shown in Table 3 and the exploded view in Figure 3. Part quantities are not displayed if they are valve size or actuator type dependent. Figure 3.Exploled view of SKF valve © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
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Page 10: Technical Data
Valve body nut Body sealing 2.3 Technical data 2.3.1 Product identification Flowrox valve type plate is shown in Figure 4. 1. Valve type (see Table 4) 2. Serial number (year, order number, individual valve number) 3. Customer tag number etc. -
Page 11: Actuators
The gate speed may not exceed 25 mm/s. WA R NI NG Table 5.Manually actuated valve operating revolutions. Valve nominal size 1000 1200 Bevel gear revs. to 1067 1650 stroke valve © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 12: Transportation, Storage And Lifting
When storing used valves, wash the valve and also the body cavities with fresh water and follow the steps above. For storage periods greater than 36 months, please contact Flowrox as the rubber parts need to be changed before use. - Page 13 When you disassemble the valve use the threaded flange bolt holes to fasten a suitable lifting eye or hook to the lifted part. Figure 5.Valve lifting example. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
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Page 14: Installation
Flowrox gate valves have connections with DIN or ANSI bolt drillings as standard design, but other drillings are also available, such as BS, AS, JIS. Reserve enough space for safe installation and maintenance. See Appendix A for valve dimensions. -
Page 15: Flow Direction, Support, And Valve Position
±15º angle sideways. See the following Figure 6. ±15º Recommended installation Forbidden installation positions positions Figure 6. Installation alternatives for SKF valves. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 16: Valve Installation
9. Run a few open/close cycles without pressure in the pipeline. Refer to Troubleshooting if the valve does not operate smoothly or without extra force. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 17: Flushing Installation Guidelines
Flushing line or drain line is also required if the medium is harmful to people, environment or other components nearby. In other cases, the flushing connections can be opened to prevent valve body from clogging up. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... - Page 18 If the medium is harmful in any way, the flushing port must be piped to a safe location. 18. Protective plugs (6 pcs) Figure 9. Flushing example 1. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
- Page 19 In flushing example 2 (Figure 11), the water is supplied to upper corner of the valve and drained from the opposite lower corner of the valve. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice.
- Page 20 Figure 11. Flushing example 3 A. Flush water supply B. Drain line © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
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Page 21: Valve Operation
Follow these operation instructions, when valve flushing is installed. Flush Flowrox gate valves at least after every 20 cycles to keep the body clear of solids, depending on application and process. If slurry solids are present in the process, the flushing sequence needs to be initiated each time the valve is operated. -
Page 22: Servicing And Maintenance
Check the condition of the valve regularly. When the valve is tight and it actuates flawlessly, lubricating is the only mandatory maintenance task. Periodic inspections should be done as valves may wear over time depending on conditions and process. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 23: Scheduled Maintenance
Valve type number as in type plate (example: SKF700MG10-60S0-NR-G) Spare part name and quantity (example: Ring sleeve, 2 pieces) You can order the spare parts from Flowrox offices, distributors or agents. Contact information is available at http://www.flowrox.com It is recommended to keep the spare parts of Table 8 available at your factory warehouse. -
Page 24: Lubrication
WA R NI NG POULENE RHODORSIL III Flowrox gate valves have grease nipples on both sides of the valve body (Figure 12). Valves are lubricated when assembled - therefore first lubrication should not be required unless the valves have been in stock for a longer time. For dry material handling, lubrication might be limited or forbidden. - Page 25 12. Grease nipple Table 9.Volume of grease required per unit. Valve nominal size 1000 1200 Lubricant when adding online (cm Lubricant when overhauling (cm © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
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Page 26: Changing The Gland Packing
DOW# 111, DOW 4, DOW 44, GENERAL ELECTRIC COMPOUND G661, AND RHONE - WA R NI NG POULENE RHODORSIL III © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... - Page 27 26. Lubricate valve grease nipples (17) as instructed in Lubrication. 27. Reconnect automatic actuator to power supply. 28. Run a few test strokes before the pipeline is pressurized. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG...
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Page 28: Changing The Ring Sleeves
16. Tighten the flange bolts evenly. 17. Disconnect the hydraulic hand pump (if used). 18. Connect the power source. 19. Stroke the valve 2-3 times. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 29: Valve Dismantling
7. Remove the bolts from between the actuator and tower (or adapter plate if equipped). Lift the actuator off the tower. 8. Refer to actuator manufactures’ instructions for actuator sealing replacement or other maintenance work. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 30: Dismantling The Valve Body
5. Clean the body (1) from the inside and ensure that the bores are flawless. 6. When all valve parts have been cleaned and inspected, continue to Valve assembly. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. -
Page 31: Valve Assembly
7. Continue to the tower and actuator assembly in the next chapter. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 32: Tower And Actuator Assembly
(2) and clevis (13). Secure the clevis pin with the retaining rings (16). 6. Continue to test the stroke in the next chapter. Figure 16. Tightening the tower mounting bolts. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 33: Testing And Adjusting The Valve Stroke
5. Run a few open/close cycles and leave the valve open. If the valve operates smoothly, it is ready to be installed on the pipeline. Follow the Installation instructions. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. -
Page 34: Troubleshooting
Check gate for scrapes and bending and change if Damaged gate damaged * Manually operated valves are actuated with normal hand force. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-10-ENG... -
Page 35: Appendix A: Main Measurements Of Skf Valves
All other dimensions are in 1200 5626 1870 5651 1870 1177 5695,5 1870 6155 6200 6320 G1 1/2” millimeters, but flushing connections are in inches. © 2014 Flowrox Oy. All rights reserved. Contents are subject to change without notice. SKW/ SKF-2014-09-ENG... - Page 36 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...