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OPERATING INSTRUCTIONS
GLOBE VALVES APPLICATION
&
MAINTENANCE
JUNE, 2015
WARNING
This manual is exclusive property DIKKAN, under copyright and any not authorized reproduction, in
part or in total, shall be prosecuted.
Read and follow instructions carefully. Proper training and periodic review regarding the use of this
equipment
is
essential
to
prevent
possible
serious
injury
and/or
property
damage.
Shown products are according the current production. Dikkan reserves to modify product
characteristics according technical evolution or customer special request. Verify if manual comply
with used product.
Doc. No: FRM.65
Rev. No: 00 Rev. Date: 01.06.2015
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Table of Contents
Summary of Contents for Dikkan DN15
- Page 1 MAINTENANCE JUNE, 2015 WARNING This manual is exclusive property DIKKAN, under copyright and any not authorized reproduction, in part or in total, shall be prosecuted. Read and follow instructions carefully. Proper training and periodic review regarding the use of this...
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Page 2: Table Of Contents
CONTENTS SAFETY TERMS………………………………………………….……………………………………………..……. TECHNICAL FEATURES…………………………………………….……………………………………....DESCRIPTION……………………………………………………………………………………….……………….. HOW TO MEASURE VALVES….………………………………………………………………………….……….. GLOBE VALVE PART LIST…………..…..………………………………………………………………..……….. PROTECTION DURING STORAGE AND TRANSPORT………………………………………………………... INSTALLATION………………………………………………………………………………………….……………. 7.1 Installation Position…………………………………………………………………………………………..MAINTENANCE………………………………………………………………………………..……………………… 8.1 Replace the Gland Packing…………………….………………………………………………………...……. 8.2 Replace the Gasket…………………………………….……………………………...………………………... 8.3 Metal to Metal Sealing……………………………….……………………………………………………...….. 10 OPERATION…………………………………….……………………………………….……………………………. 11 9.1 Bypass Disc…………………….……………………...…………………………………………………...……. -
Page 3: Safety Terms
Working Pressure Bronze [bar] Stainless Steel [bar] 120 ℃ 180 ℃ 120 ℃ Bore Bore DN15-DN200 DN15-DN150 DN250 DN175-200 DN300-DN350 DN250-DN300 DN400-DN600 DN350 DN400-DN600 Valves must not be used at higher “pressure & temperature” than defined “working pressure & temperature”. -
Page 4: Description
3. DESCRIPTION Globe valves are named for their spherical body shape. A Globe valves is a linear motion valve and are designed to close off, open up or regulate the flow in a pipeline. The disc is designed to stop flow and a tight seal with pressure under the disc. In the 10% open position to full open position, globe valves are efficient in throttling line pressure. -
Page 5: How To Measure Valves
. HOW TO MEASURE VALVES It is very important to supply dimensions as described below as well as pressure, temperature and medium information, to request or purchase the exact valve as per your needs. L: Face to Face Length L1 / L2: Face to Center Length (Raised face is included in length) ØD:... -
Page 6: Globe Valve Part List
5. GLOBE VALVE PART LIST Doc. No: FRM.65 Rev. No: 00 Rev. Date: 01.06.2015... -
Page 7: Protection During Storage And Transport
Pipelines and pipeline systems have to be installed in such way that no tensions from thermal expansion (or other) of the pipeline may have impact on the valves. This can theoretically even lead to breaks in the valves, causing danger from medium spills. DIKKAN offers suitable expansion joints for this purpose. •... - Page 8 • The bolting must be checked for correct size, length, material and that all connection flange bolt holes are utilized. Tighten the bolts and nuts in the crossover method shown in Fig. 1, to load the pipe and valve evenly and prevent stress on the joints.
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Page 9: Installation Position
7.1 Installation Position SDNR Type; SDNR type valves without spring can only be installed in horizontal pipes in a vertical position Stop Type; Stop type globe valves can be installed in any position. However, the best installation position is with the stem pointing vertically upwards Doc. -
Page 10: Maintenance
8. MAINTENANCE Dikkan globe valves are designed to have minimum maintenance. But if you carry out the following maintenance, they will increase the longevity and reliability of the valve. Valves shall be dismounted from pipe line before maintenance and shall be cleaned from medium. -
Page 11: Replace The Gasket
Fig.5 8.2 Replace the Gasket Depressurize the system and remove the valve from pipe line before bonnet disassembly. Disassembly the valve will become out of warranty. Please consult Dikkan before disassembling if the valve is under warranty. ▪ Bonnet Disassembly a) Operate the valve until it becomes full open position. -
Page 12: Metal To Metal Sealing
▪ Body-Bonnet Assembly a) Inspect the bonnet bolts to ensure that it is not damaged. Any damaged bolts should be replaced. b) Place the entire bonnet assembly onto the valve body, taking care not to damage the disc. c) Tighten the bolts in the crossover method like a shown in Fig. 1. d) Test the valve as required, and place the valve back into service. -
Page 13: Operation
Globe valves are operated manually by handwheel. The handwheels are designed such that reasonable effort exerted by the operators is sufficient to operate the valve. All Dikkan globe valves have open and closed marked on the hand wheels along with directional arrow. To open, turn the handle in a counterclockwise direction. To close, turn the handle in a clockwise direction. -
Page 14: Recycling
Categories are SEP (sound engineering practice) and for ascending levels of hazard, I, II, III or IV. All valves designated as SEP do not bear the CE mark nor require a Declaration of Conformity. Dikkan valves with a CE marking have a declaration of conformity which includes information about the applied conformity assessment procedure. -
Page 15: Troubleshooting
13. TROUBLESHOOTING Be sure to observe the safety instructions during troubleshooting. Fault Possible Cause Corrective Action Valve leaking around T-Bolts loose Tighten T-Bolts stem and gland Damaged or worn gland packing Refer to the "8.1 Replace the Gland Packing" sections of this manual Damaged stem Replace stem Valve leaking around... -
Page 16: Notes
15. NOTES Doc. No: FRM.65 Rev. No: 00 Rev. Date: 01.06.2015... - Page 17 Izmır Kemalpaşa Yolu Hayıtlıkır Mevkii No:30 Kemalpaşa- IZMIR Tel: 0090 232 877 17 14 Fax: 0090 232 877 17 15 www.dikkan.com...
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