These instructions provide information about safe handling and operation of the valve. If you require additional assistance, please contact the manufacturer or manufacturer's representative. Addresses and phone numbers are printed on the back cover. See also www.metso.com/valves for the latest documentation. SAVE THESE INSTRUCTIONS! Subject to change without notice.
Size, Rating used. If you are uncertain about use of the valve or its suitability for Body material your intended purpose, please contact Metso for more Plug, Stem material information. Seat material For valves in oxygen service, please see also the separate Temp.
It can be measured or Fig. 3 Lifting the valve calculated using the Metso Nelprof software. Observe the relevant working environment regulations in terms of Do not remove the flow port protectors until immediately noise emission.
For safety reasons, inform the manufacturer of the nature result. of the medium when you send the valve. Flushing and hydrostatic test kit can be purchased from Metso. NOTE: CAUTION: Always use original spare parts to make sure the valve Flushing trim kit sholud be installed in the valve (espe- functions as intended.
4 GV 71 en Gland packing adjustment Remove the old packing rings (69) using a pointed tool, avoid damaging the seal surfaces and valve In the event of a packing leakage tighten the hexagon nuts stem. (18) in ¼ turn steps each until the leakage is stopped. Do ...
4 GV 71 en Replacing the trim and body reassembly NOTE: The trim set consists of the seat, plug and stem, retainer and gaskets (for seat and body). Make sure the valve is not pressurised. Remove the actuator from the valve stem according to the instructions given in the actuator manual and Section 6.
4 GV 71 en Fig. 10 Trim Design Applications TESTING THE VALVE CAUTION: Pressure testing should be carried out using equip- ment conforming to the correct pressure class! We recommend that the valve body is pressure-tested after the valve has been assembled. The pressure test should be carried out in accordance with an applicable standard for the pressure rating.
. valve stem and plug to be slightly touched with seat Several types of Metso actuators can be used with suitable ring to make sure if valve is fully closed. And mark clamps.
4 GV 71 en Fig. 12 VD Actuator TOOLS Removal of the actuator L- wrench set (mm) hex socket wrench set chisel and hammer (10 pound) +,- drivers ORDERING SPARE PARTS NOTE: Always use original spare parts to make sure that the valve functions as intended.
4 GV 71 en 10.2 Actuators VD, VC Vent Cap Vent Cap VDD/R E VDD/R D Standard spring High spring Side handwheel(25/29/37) Standard spring Dimension Without handwheel With handwheel (mm) Size Weight Weight Bd / Bhd Br / Bhr (mm) (kg) (kg) VD_25 E...
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4 GV 71 en Top side handwheel(VDD48/55) Top side handwheel(VDR48/55) Dimension Without handwheel With handwheel (mm) Size Weight Weight Bd / Bhd Br / Bhr (mm) (kg) (kg) VD_48 E 1102 1072 VD_48 D 1152 1122 VD_55 E 1145 1115 VD_55 D 1195 1165...
4 GV 71 en TYPE CODE Globe Unbalanced, Top Guided Type, Series GU VALVE CONSTRUCTIONS TRIM CONSTRUCTIONS VALVE SERIES PLUG MATERIAL Globe unbalanced, Top guided type Material Description 410 SS General for carbon steel valve 316 SS General for stainless steel valve BODY SIZE Optional plug material 1"...
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4 GV 71 en OTHERS PACKING TYPE STUD / NUT MATERIAL Standard A193 gr. B7 / A194 gr. 2H Low emission, Live loaded A193 gr. B8 / A194 gr. 8 Optional Packing / Bellows Type A320 gr. B8M cl. 2 / A194 gr. 8M Bellows Seal (316L SS, Formed) Optional Stud / Nut Material Special...
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* Rated Cv is separeted depending on the trim type & trim characteristic. * Optional rated Cv to meet to specific Cv are available. * (Srk) is the valve stroke. * For trims without the specified Cv values, please contact Metso Korea.
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4 GV 71 en Metso Flow Control Inc. South Korea, 235 Cheomdansaneop 1-ro, Daesowon-myeon, Chungju-si, Chungbuk-do, 27466, Korea Tel. +82 43 852 7708, Fax +82 43 841 9890 Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. +358 20 483 150. Fax +358 20 483 151 North America, 44 Bowditch Drive, P.O.
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