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Installation, Operation and Maintenance Manual

Rising Stem Ball Valve
Document #: DHV-IOM-RSBV-19
Published: October 2019
Revision:

Page 1 of 28

INSTALLATION, OPERATION

AND MAINTENANCE
MANUAL

RISING STEM

BALL VALVE

Содержание RISING STEM

Страница 1: ...llation Operation and Maintenance Manual Rising Stem Ball Valve Document DHV IOM RSBV 19 Published October 2019 Revision 0 Page 1 of 28 INSTALLATION OPERATION AND MAINTENANCE MANUAL RISING STEM BALL V...

Страница 2: ...6 2 VALVE TRANSPORTATION AND STORAGE 7 2 1 TRANSPORTATION 7 2 2 STORAGE 7 3 VALVE INSTALLATION 8 3 1 INSPECTION BEFORE INSTALLATION 8 3 2 INSTALLATION 9 4 VALVE OPERATION 14 5 VALVE MAINTENANCE 18 6...

Страница 3: ...llation Operation and Maintenance Manual Rising Stem Ball Valve Document DHV IOM RSBV 19 Published October 2019 Revision 0 Page 3 of 28 TYPICAL CONFIGURATION VALVE DETAILS RISING STEM BALL VALVE SOFT...

Страница 4: ...Installation Operation and Maintenance Manual Rising Stem Ball Valve Document DHV IOM RSBV 19 Published October 2019 Revision 0 Page 4 of 28 VALVE DETAILS RISING STEM BALL VALVE METAL SEAT...

Страница 5: ...stallation Operation and Maintenance Manual Rising Stem Ball Valve Document DHV IOM RSBV 19 Published October 2019 Revision 0 Page 5 of 28 VALVE DETAILS RISING STEM BALL VALVE METAL SEAT PISTON ACTUAT...

Страница 6: ...nd maintenance of any valve DHV valves are designed to meet the customer s order requirements and specifications DHV disclaims all responsibility for problems that may be caused by applications other...

Страница 7: ...For those valves not required to be immediately installed do not open the end flange protective covers Ensure the valves are stored in a safe clean environment and are protected from rain and dust 2 2...

Страница 8: ...e 3 1 2 Before installation remove the flange cover and the protective film on the flange sealing face inspect the ports and the flange sealing surface remove any dirt with a clean soft cloth use an a...

Страница 9: ...any deviation from recommended horizontal position may compromise proper valve operation and void the warranty 3 2 2 ACTUATED VALVES All DHV pneumatic actuated valves are equipped with lifting lugs on...

Страница 10: ...end user shall take full responsibility After valve and actuator have been installed on the pipe line connecting the power and pressure source to the actuator WARNING Pneumatic actuator air gas pressu...

Страница 11: ...bolting torque If the bolting quantity is different from the chart shown please follow the same principle to get a new sequence to follow For large diameter valves the valve must be properly and safe...

Страница 12: ...07 37 112 9 16 12UNC 121 158 45 144 152 53 160 5 8 11UNC 165 217 62 197 208 72 218 3 4 10UNC 289 378 108 344 362 126 380 7 8 9UNC 459 601 171 459 200 605 1 8UNC 683 894 255 683 298 901 1 1 8 8UN 992 1...

Страница 13: ...easurement Newton meters N m Tolerance 10 Conversion 1 ft lb 1 36 N m 1 N m 74 ft lb B7M L7M B7 L7 B8 I B8M I B8M II B8 II B8MLCuN B16 M10 43 56 16 51 54 19 56 M12 73 96 27 87 92 32 96 M16 175 230 66...

Страница 14: ...uild up within the valve assisting in flushing heavier debris from the valve Fully close the valve if seat leakage is noted after flushing repeat flushing procedure If leakage from the seat is still e...

Страница 15: ...ve at the bottom of the valve body unless it is to check the seat leakage when the valve drain is open make sure the valve body is not under any pressure 4 9 Rising stem ball valve operation are as fo...

Страница 16: ...is a loss of the instrument air gas first open the air gas tank globe valve and then close the ball valve A underneath the tank open ball valve B and ball valve C then operate the hand pump to pressur...

Страница 17: ...em nut will turn until it contacts the lower thrust bearing surface resistance force will increase rapidly then turn the hand wheel clockwise 4 turns or gear box hand wheel 4 x gear box ratio turns to...

Страница 18: ...ication is not for valve sealing purposes it is to reduce the friction and wear between the moving parts 5 2 2 Lubrication schedule and selection Valve lubrication shall be based on end user s experie...

Страница 19: ...2 to 10 times to provide sufficient lubrication WARNING do not remove the injection fitting from the valve otherwise it may cause an accident or personnel injury 5 2 6 When inspecting the oil level o...

Страница 20: ...packing material to the packing box compartment this will increase the pressure inside the packing box to spread the V ring lips to seal the leakage generally turn the packing screw 5 10 turns to sto...

Страница 21: ...ing effect 5 3 6 If stem leakage occurs tighten the hex nut on the eyebolt to increase the stem packing force if packing force too high it will make the stem moving more difficult 5 3 7 Do not remove...

Страница 22: ...such as valve stem stem packing and packing rings etc 6 1 4 Remove the core ball from the body shaft bearing etc 6 2 VALVE ASSEMBLY 6 2 1 Clean all valve parts if necessary replace all worn parts 6 2...

Страница 23: ...5 4 Install the packing ring to the packing box follow the below requirement a The first ring to the packing box use packing gland sleeve to compress the packing to a correct position b Follow the sa...

Страница 24: ...on 0 Page 24 of 28 Figure 5 Packing cut 45 cut Figure 4 Stem packing detail Figure 6 Packing cut location Table 2 Eyebolt nut tightening torque DHV 150 300 600 900 1500 Size Eyebolt type Torque Eyebol...

Страница 25: ...ion 4 Reinstall the valve to assure the flow direction is consistent between valve and pipeline Valve hard to operate valve torque too high 1 Valve stem deformed 1 Repair or replace the stem 2 Valve i...

Страница 26: ...within the warranty period DHV reserves the right to review and respond to all requests for warranty repair or replacement prior to making any replacement or repairs by the end user 8 1 4 DHV will no...

Страница 27: ...installation Operation Personnel installing the operator must ensure there is no abnormal stem movement or run out during operation It is extremely important that all stops and or limits are correctl...

Страница 28: ...Inc 10401 South Sam Houston Pkwy West Houston TX 77071 USA Call Toll Free 844 828 2169 Phone 346 304 2968 Fax 346 304 2971 E mail sales dhvvalve com Website www dhvvalve com DHV is committed to provi...

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