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McCANNALOK SERIES

CRYOGENIC HIGH PERFORMANCE

BUTTERFLY VALVES

Installation, Operation and Maintenance Manual

BRAY.COM

THE HIGH PERFORMANCE COMPANY

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Содержание McCANNALOK Series

Страница 1: ...McCANNALOK SERIES CRYOGENIC HIGH PERFORMANCE BUTTERFLY VALVES Installation Operation and Maintenance Manual BRAY COM THE HIGH PERFORMANCE COMPANY...

Страница 2: ...ature without the express written permission of Bray International Inc 2 of 18 1 0 Definition of Terms 3 2 0 Introduction 3 3 0 Parts Diagram 4 4 0 Handling Requirements 5 5 0 Long Term Storage 6 6 0...

Страница 3: ...n an undesirable result or state including property damage 2 0 INTRODUCTION 2 1 The McCannalok Cryogenic high performance butterfly valve provides industry leading cryogenic sealing technology and per...

Страница 4: ...34 35 23 7 8A 8B 7 6 1 9 3 2 32 5 22 27 15 13 8C 33 12 16 14 18 17 21 20 19 25 24 ITEM NO DESCRIPTION 1 Body 2 Disc 3 Stem 5 Seat Retainer 6 Locating Plug 7A Gasket Locating Plug 7B Gasket Bonnet 8A...

Страница 5: ...cal safety regulations 4 2 Unpacked Valves 4 2 1 Lifting and handling of valves should be carried out by using appropriate means and observing the carrying limits Handling must be carried out on palle...

Страница 6: ...vered with appropriate flange protection Flange protectors should only be removed at the time of installation 5 1 3 If the valve is automated for fail open service the valve shall be carefully protect...

Страница 7: ...l open or closed position this could cause damage to sealing surfaces 6 3 NOTE McCannalok valves are equipped with travel limiters to prevent over closure The valve is opened by turning counterclockwi...

Страница 8: ...service close the valve and depressurize the line 7 2 The eccentric design of the McCannalok valve may allow line pressure to open the valve if the handle actuator is not in place while the valve is...

Страница 9: ...bonnet 33 and lift actuator assembly off stem 3 8 3 Remove gland retainer nuts 20 and lock washers 19 Remove gland retainer 18 anti blowout retaining ring or split ring 17 depending on size gland ring...

Страница 10: ...3 on top of grounding washer 14 Install anti blowout retaining ring or split ring 17 depending on valve size Slide gland retainer 18 over stem 3 and onto gland studs 15 Place lock washers 19 and hex n...

Страница 11: ...ody 1 9 7 Align the holes in the seat retainer 5 with matching holes in body 1 and carefully place in position on top of seat 32 Make sure that the seat 32 remains centered on the disc 2 and the seat...

Страница 12: ...ator assembly off stem 3 NOTICE Note actuation assembly position before removal 10 3 Remove gland retainer nuts 20 and lock washers 19 Remove gland retainer 18 anti blowout retaining ring or split rin...

Страница 13: ...ese spacers should be noted and the spacers marked at disassembly so that they are reinstalled in the same positions top and bottom 10 13 Separate body 1 from disc 2 and remove thrust washer 12 from p...

Страница 14: ...nch until large end of taper pins 23 sit below disc 2 surface Tack weld each pin 23 to disc 2 at large end of pin 10 19 Install new gasket 7A on locating plug 6 apply approved thread lubricant to loca...

Страница 15: ...stops in the actuator to properly close the valve for tight shut off The following procedure should be followed to set travel or limit stops It is recommended that the valve must be removed from line...

Страница 16: ...4 12 11 74 11 31 Table 2 MINIMUM INSIDE DIAMETER OF PIPE WITH THE RECOMMENDED CLEARANCE mm Valve Size Class DN 150 300 80 73 73 100 94 94 150 149 146 200 198 192 250 248 240 300 298 287 Table 3 TOTAL...

Страница 17: ...lve Size Locating Plug Mounting Bracket Cap Screws NPS 150 300 150 300 3 2520 175 175 4 2520 175 175 6 2700 300 300 8 3000 300 756 10 4200 756 756 12 4200 756 756 Table 4 GLAND RETAINER NUT AND SEAT R...

Страница 18: ...r intended application The right to change or modify product design or product without prior notice is reserved Patents issued and applied for worldwide Bray is a registered trademark of Bray Internat...

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