MASCOT DiskFlo Installation, Operation & Maintenance Instructions Manual Download | Manualshive

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MASCOT VALVES PVT. LTD.

166 / 167, G I D C, Naroda, Ahmedabad : 382330. India

Phone : +91 79 22821619/22823369, Fax : +91 79 22822430

Email : [email protected] / web : www.mascotvalves.com

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Summary of Contents for DiskFlo

Page 1: ...ng 3 Use ﬁre safe valves for piping where chances of ﬁre by external means 4 Use seismic proof valves where chances of earthquake are frequent 5 Check whether location of the valve mounting is of the same service application as speciﬁed on the marking plate Installation Operation Maintenance Instructions DiskFlo Control Valves ...

Page 2: ...dirt scale welding chips and other possible foreign material The surfaces of gasket should be cleaned thoroughly thus ensuring that the joints are leak proof The direction of the flow should be checked for ensuring that the installation of valve is right In case of Fail closed valves installation should be done only on gas service with the shaft upstream In case of liquid service valves installati...

Page 3: ...ve For any areas of severe oxidation cleaning of the valve needs to be done followed by painting For proper tightness inspect the packing box bolting The tightness of the Packing nuts should be slightly over finger tight To prevent stem leakage tighten as necessary CAUTION Never overtighten the packing In case of valve supplied with a lubricator lubricant supply needs to be checked and adding of l...

Page 4: ...etainer snap ring configu ration insert a screwdriver carefully in the key slot provided in the retainer pry the retainer and snap ring out of the valve body Presented in Figure 1D Remove both packing nuts to remove the gland flange The studs need not be removed By tapping on the small end of the pins using a punch and hammer drive the taper pins out of the disc Remove the end plug optional bolted...

Page 5: ...entation 1 is standard Orientation positions 2 and 4 are not available in some actuator sizes Contact factory A gasket is required in all seat configurations with screw clip retainers item 55 installed in the appropriate groove This is done by pressing the gasket into the appropriate groove In case the seat retainer is the screw clip type and possesses a soft or dual seat press the soft seat into ...

Page 6: ...to the actuator without the cover plate installed may cause damage to the unsupported shaft Until the disc is parallel to the seat surface but not resting on body disk stop adjust the actuator stroke stop bolts CAUTION To prevent the valve disc from overstroking the actuator stroke stop bolts must be properly adjusted The valve shaft may be twisted or sheared off if incorrectly adjusted The valve ...

Page 7: ...eel until disc seats properly 5 Ball not centered in body I D 5 Center ball replace damaged seals Leakage through line flanges 1 Dirty line gasket surfaces 1 Clean gasket surfaces and reinstall valve 2 Improper torque on line flanges 2 Tighten line flanges evenly and completely see Table 1 for proper torque 3 Flange or pipe misalignment 3 Realign flanged ends with piping 4 Warn Gaskets 4 Replace G...

Page 8: ...MASCOT VALVES PVT LTD 166 167 G I D C Naroda Ahmedabad 382330 India Phone 91 79 22821619 22823369 Fax 91 79 22822430 Email info mascotvalves com web www mascotvalves com ...

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