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Removing the equipment

To exchange the spring or the gasket you have to
remove the equipment.

You may not be able to move heavy
component parts in large equipment.



In this case use suitable lifting / support
equipment and tools.

The load carrying capacity of lifting gear
and tools must at least be rated for the
total weight of the equipment.



For more information on the weight of
the individual component parts please
contact the manufacturer.

DANGER

Risk of bruises if the equipment or
component parts fall down.



Use suitable lifting gear when moving
or lifting the equipment and/or
component parts.



Make sure that the equipment cannot
topple over.



Make sure that nobody is standing
below the lifted equipment.

Attention!

Excessive loads may damage the closing
dampers.



Use the eye bolt for fixing lifting gear.



Do not stress the closing dampers.



Undo the nuts on the bolts.



Pull the equipment out of the flanges.



Remove the gaskets from the flanges.

Removing springs from BB 1 and BB 3,

DN 50–125, DN 450–500

To mount and remove the spring you need the
following tools:



Socket spanner A. F. 13, 17, 19, 22, 24
DIN 3124



Hexagon socket spanner A. F. 5, 6, 10, 12, 17,
22, 24 ISO 2936



Torque spanner DIN ISO 6789



Flat pliers DIN ISO 5745



Stable cover for springs



Hinged face spanner A. F. 2 -8 (for equipment
with body lining made from Vestosint/hard
rubber)

The number of sealing screws depends on
the equipment type.
Small equipment features two sealing
screws next to the eye bolt.
Larger equipment has two additional
sealing screws on the other end of the
body.



Slacken the sealing screws (1) in the body.



Take the sealing screws and the respective
gaskets out of the equipment.

Содержание BB 1

Страница 1: ...Double Swing Check Valve BB 1 BB 2 BB 3 Original Installation Instructions 819649 00 ...

Страница 2: ...uipment 11 Storing the equipment 11 Transporting the equipment 11 Mounting and connecting the equipment 12 Preparing installation 12 Mounting the equipment 12 Operation 16 After operation 16 Removing external dirt deposits 16 Maintaining the equipment 16 Servicing the equipment and installing spare parts 17 Troubleshooting 28 Putting the equipment out of operation 29 Removing harmful substances 29...

Страница 3: ... The installation operating manual is part of the equipment Please hand over this installation operating manual when selling the equipment or passing it on Formatting features in the document Certain text elements of this installation operating manual feature a specific typographic design You can easily distinguish the following text elements Standard text Cross reference Listing Sub items in list...

Страница 4: ...s are standing in close vicinity of the equipment If the admissible temperature and pressure limits are exceeded the equipment may be destroyed and hot or pressurized fluid may escape Make sure that the equipment is only operated within the admissible service range and limits For more information on limits and pressure temperature ratings see name plate and the section Technical Data Risk of minor...

Страница 5: ...eady for assembly Equipment series and optional extras Equipment types BB 1 and BB 2 differ from each other in the way the hinge pins for the discs in the body are attached Various types of equipment are available which differ from each other in the following Pressure rating Body material Nominal size Seat Type of spring Designed and manufactured in accordance with DIN or ASME Installation of an o...

Страница 6: ...ssure for vertical installation with downward flow For more information on the opening pressures of the spring see the data sheet The type designation is a sequence of alphanumerical characters that specifies the type of equipment If the letters DPF are indicated in the type designation it denotes the installation of a damper Examples of type designations BB 32 A 350 EPDM 5 VO BB PN 10 stainless s...

Страница 7: ...ection arrow 4 Body 5 Angle bracket or fixing plate for plates 2 No Designation 6 Seal3 7 2 pairs of springs 8 Plates 9 Hinge pins 1 2 seal screws on top and 2 on bottom of the body Smaller equipment features only 2 seal screws on top of the body 2 Depending on the type of equipment angle brackets or fixing plates are used The following drawings show equipment with angle brackets 3 Some types of e...

Страница 8: ...ounted on bearing blocks in the body No Designation 2 Eye bolt 3 Name plate with flow direction arrow 4 Body 6 Seal1 7 2 pairs of springs No Designation 8 Plates 9 Hinge pins 10 Plate support for plates with threaded bolt 11 Threaded bolt 1 Some types of equipment have metal to metal seats ...

Страница 9: ...d a corresponding bore in the equipment is available No Designation 12 Damper with gasket For fitting the damper the body of the equipment must be provided with a bore The standard body does not have such a bore and can therefore not be equipped with a damper ...

Страница 10: ...en installed static electricity may arise between the equipment and the connected system When used in potentially explosive atmospheres the plant manufacturer or plant operator is responsible for discharging or preventing possible static charge If it is possible for medium to escape e g through actuating mechanisms or leaks in threaded joints the plant manufacturer or plant operator must take this...

Страница 11: ...atmospheres Please contact the manufacturer if the specified transport and or storage requirements cannot be met Storing the equipment Please observe the following items when storing the equipment Do not store the equipment for more than 12 months Protect the sealing surfaces and contact areas against mechanical damage Protect the equipment and all components against hard shocks and impacts Store ...

Страница 12: ...he installation off and protect it against unauthorised or unintended re activation Mounting the equipment Attention Equipment will be damaged if the end connections are undersized Make sure that the connections are strong and rigid enough to support the weight of the equipment and to withstand the forces that occur during operation Attention Excessive loads may damage the closing dampers Use the ...

Страница 13: ...sure that the direction of flow in the pipe matches the flow direction arrow on the equipment Make sure that the connected pipe does not subject the body to any stress forces or torques during installation and operation Specialist personnel must have knowledge and experience of the type of pipe connection used Attention If the installation position is incorrect malfunctions may occur and or the eq...

Страница 14: ...is suitable for the pipe onto the lower flange Put the equipment onto the gasket Put a commercially available gasket that is suitable for the pipe onto the equipment Put the upper flange onto it Insert all bolts through the holes in the flange Make sure that all component parts are in central alignment with each other Screw the nuts onto the bolts To obtain the desired position of installation you...

Страница 15: ...s installed in the correct position When installing the equipment make sure that the eye bolt points upwards The correct position of installation is indicated by the position of the eye bolt and the flow arrow on the nameplate If the equipment is installed in a horizontal pipe the eye bolts must point upwards If the equipment is installed in horizontal position you can use the lower bolts as suppo...

Страница 16: ...nel are allowed to perform work on contaminated equipment Always wear the protective clothing prescribed for contaminated areas when working on the equipment Make sure that the equipment is completely decontaminated before carrying out any service work Follow the pertinent instructions for handling the hazardous substances in question Removing external dirt deposits To remove dirt deposits rinse t...

Страница 17: ...97 348227 450 348586 348580 348592 500 348587 348581 348593 600 348588 348582 348594 700 348589 348583 348595 800 348591 348585 348597 Please state the equipment serial number see rating plate Seal 6 stock code DN Stock code O ring EPDM O ring FPM O ring NBR O ring PTFE1 50 351520 351521 351522 65 351523 351524 351525 80 351526 351527 351528 100 351529 351530 351531 125 351532 351533 351534 150 35...

Страница 18: ...essive loads may damage the closing dampers Use the eye bolt for fixing lifting gear Do not stress the closing dampers Undo the nuts on the bolts Pull the equipment out of the flanges Remove the gaskets from the flanges Removing springs from BB 1 and BB 3 DN 50 125 DN 450 500 To mount and remove the spring you need the following tools Socket spanner A F 13 17 19 22 24 DIN 3124 Hexagon socket spann...

Страница 19: ...one spring after the other Make sure that no uninvolved persons are standing in close vicinity of the equipment Cover the springs with a stable cover 13 1 Use the flat pliers to pull the two hinge pins 9 out of the body 2 Remove the cover Take the four springs 7 out of the body 1 Spread the plates slightly apart 2 Depending on the type of equipment angle brackets or fixing plates are incorporated ...

Страница 20: ...rd rubber Slacken the two threaded bolts 11 in the body 1 Turn the plates and the springs as shown in the illustration 2 WARNING The springs are preloaded and their tension can cause injuries Always wear safety goggles when replacing the springs Mount or remove one spring after the other Make sure that no uninvolved persons are standing in close vicinity of the equipment For larger equipment use l...

Страница 21: ...e body Put the plates onto a bearing surface of sufficient integrity and stability Put a flat and stable cover 13 onto the springs 1 Pull the plate supports 10 off the hinge pins as shown 2 WARNING The springs are preloaded and their tension can cause injuries Always wear safety goggles when replacing the springs Mount or remove one spring after the other Make sure that no uninvolved persons are s...

Страница 22: ... installed incorrectly the plates do not fully rest against the body seat and tight shut off is not ensured After installation make sure that the plates rest fully against the body seat Insert an angle bracket or plate 5 into the body DANGER Risk of bruises if the equipment or component parts fall down Use suitable lifting gear when moving or lifting the equipment and or component parts Make sure ...

Страница 23: ...the springs with tension plates 7 onto the plate 1 Push the hinge pin into the body until it hits the stop 2 Pull the second hinge pin 9 out of the body Put the springs with tension plates as described onto the second plate Large equipment is fitted with four sealing screws 1 Small equipment has only two sealing screws The following drawing shows the equipment with four sealing screws The two seal...

Страница 24: ...ominal size and body type For information on the required tightening torques see the following tables Fasten the sealing plugs with the specified tightening torque Tightening torque Nm for austenitic steel sealing plugs DN BB 11 BB 12 BB 14 BB 15 BB 16 BB 32 BB 34 BB 35 BB 36 BB 17 BB 18 BB 19 50 5 5 65 5 5 80 12 12 100 13 13 125 13 27 150 65 65 200 135 135 250 135 135 300 135 320 350 260 400 320 ...

Страница 25: ... shown onto the plates 8 Attention Malfunctions may occur if the equipment is installed incorrectly The holes in the plate support 10 are asymmetric If installed incorrectly the plates do not fully rest against the body seat and tight shut off is not ensured When installing the plate supports make sure that the 45 countersink bevel points upwards After installation make sure that the plates rest f...

Страница 26: ...ot topple over Make sure that nobody is standing below the lifted equipment Lift off the plates at the plate supports Put the plates as shown into the body Make sure that the plates fully rest against the body seat Remove the eye bolts and keep them for future use Turn the plates until the bores in the plate supports are underneath the stops 1 Insert the two threaded bolts 11 2 The required torque...

Страница 27: ... body 150 15 7 5 17 8 200 15 7 5 17 8 250 26 15 28 17 300 26 15 28 17 350 26 26 28 28 400 70 42 78 47 Carefully pull the tension plates 14 off the springs Installing the equipment Make sure that the plates fully rest against the body seat Make sure that the plates can move smoothly Mount the equipment into the pipe as described in section Mounting the equipment from page 12 onwards ...

Страница 28: ... the equipment so that a stabilized flow is provided The swing disk touches the pipe Align the equipment Install the equipment at a position where the swing disk does not touch the pipe Install an equipment that is suitable for the pipe Equipment leaks The equipment is damaged Check the condition of the equipment Replace the equipment if it is damaged The spring is damaged or worn Check the condit...

Страница 29: ...of all materials observe the pertinent legal regulations concerning waste disposal Remove all residues from the equipment For the disposal of all residues observe the pertinent legal regulations concerning waste disposal Removing the equipment DANGER Personnel working on pipes are exposed to safety risks and may suffer severe injuries poisoning or even loss of life Make sure that no hot or hazardo...

Страница 30: ...sure that all connections are in good condition and leak free Replace the gaskets in the equipment with new ones of the same type Replace the gaskets at the connections of the equipment with new ones of the same type Use the equipment only for its intended purpose and the service conditions for which it was specified Disposing of the equipment Caution Environmental damage may be caused by poisonou...

Страница 31: ... C Component DN NPS EN number ASME Body 1 0619 A216WCB Swing discs 50 80 2 3 1 1 4404 A182F316L from 100 4 and over 1 1 0619 A216WCB Bearings and bearing pins 1 4571 A316Ti Springs up to 300 C 1 4571 A316Ti Springs 300 C and over Inconel Inconel 1 Armoured body sealing faces from DN 150 available as a special version on request Materials in the stainless steel version BB A Component DN EN number A...

Страница 32: ...2 The seals can be made from the following materials Type Material EPDM Ethylene propylene diene rubber FPM FKM Fluoro rubber e g Viton NBR Acrylonitrile butadiene rubber e g Perbunan PTFE FPM FEP coated ...

Страница 33: ... 580 152 181 144 600 681 178 217 223 700 786 229 250 305 800 893 241 290 462 900 993 241 327 571 1000 1 093 300 364 808 BB 12 G PN 10 DN Dimensions mm Weight kg D L A 450 541 152 163 130 500 596 152 181 152 600 698 178 217 234 700 813 229 250 326 800 920 241 290 490 900 1 020 241 327 602 1000 1 127 300 364 860 ...

Страница 34: ...N 16 DN NPS inches Dimensions mm Weight kg D L A 450 18 558 152 163 138 500 20 620 152 181 164 600 24 737 178 217 263 700 28 807 229 250 321 800 32 914 241 290 484 900 36 1 014 241 327 596 1000 40 1 131 300 364 865 ...

Страница 35: ...67 0 6 802 3 150 73 5 7 100 4 176 79 4 9 125 5 213 1053 14 21 150 6 250 137 0 31 200 8 312 165 3 52 250 10 367 213 0 78 300 12 427 229 15 128 350 14 489 273 8 205 400 16 546 305 5 265 500 20 660 368 5 472 600 24 768 394 10 670 1 Length as per ASME API 594 2 BB 17 A only 3 Non standard length ...

Страница 36: ...02 3 156 149 73 5 7 5 100 4 183 193 79 4 10 125 5 220 241 1053 14 22 5 150 6 260 267 137 0 32 200 8 327 320 165 3 56 250 10 394 400 213 0 89 300 12 461 457 229 15 150 350 14 515 492 273 8 228 400 16 575 565 305 5 294 500 20 708 683 368 5 543 600 24 819 791 438 10 847 1 Length as per ASME API 594 2 BB 18 A only 3 Non standard length ...

Страница 37: ...0 150 6 260 289 159 0 50 200 8 327 359 206 3 83 250 10 391 435 241 0 123 300 12 461 499 292 15 191 1 Length as per ASME API 594 BB 21 G PN 6 DN Dimensions mm Weight kg D L A 150 209 76 40 12 200 264 89 64 18 5 250 319 114 87 33 300 375 114 110 44 350 425 127 120 62 5 400 475 140 142 80 5 ...

Страница 38: ... 275 89 64 20 250 330 114 87 35 300 380 114 110 45 350 440 127 120 67 400 491 140 142 86 BB 24 G PN 16 DN NPS inches Dimensions mm Weight kg D L A 150 6 220 76 40 13 5 200 8 275 89 64 20 250 10 330 114 87 35 300 12 386 114 110 47 350 14 446 127 120 69 400 16 498 140 142 88 ...

Страница 39: ...0 25 40 171 64 19 6 5 125 10 16 194 70 28 9 0 25 40 196 70 28 9 5 150 10 16 220 76 40 11 0 25 40 226 76 40 11 5 200 10 16 275 89 64 19 0 25 286 89 64 20 0 40 293 89 64 21 0 250 10 16 330 114 87 34 0 25 343 114 87 37 0 40 355 114 87 40 0 300 10 380 114 110 44 0 16 386 114 110 45 5 25 403 114 110 57 0 40 420 114 110 61 5 350 10 440 127 120 66 0 16 446 127 120 67 5 25 460 127 120 81 0 40 477 127 120 ...

Страница 40: ... 140 142 90 5 16 498 140 142 93 5 25 517 140 142 112 0 40 549 140 142 124 0 450 10 541 152 163 106 0 16 558 152 163 110 0 25 567 152 163 121 0 40 574 152 163 128 0 500 10 596 152 181 130 0 16 620 152 181 136 0 25 627 152 181 148 0 40 631 152 181 152 0 ...

Страница 41: ... 5 4 5 300 149 73 5 5 0 4 100 150 175 73 10 7 5 300 181 73 10 8 0 5 125 150 197 861 12 11 0 300 216 861 12 13 0 6 150 150 222 98 25 11 5 300 251 98 25 16 0 8 200 150 279 127 51 19 5 300 308 127 51 24 5 10 250 150 340 146 72 36 0 300 362 146 72 44 0 12 300 150 410 181 76 58 5 300 422 181 76 61 0 14 350 150 451 184 57 78 5 300 486 222 66 88 0 16 400 150 514 191 115 110 0 300 540 232 94 120 0 ...

Страница 42: ...42 NPS inches DN CLASS Dimensions mm Weight kg D L A 18 450 150 549 203 138 116 0 300 597 264 107 157 0 20 500 150 606 219 148 142 0 300 654 292 111 192 0 1 Non standard length ...

Страница 43: ...6 19 0 8 200 150 279 89 70 27 5 300 308 89 70 31 0 10 250 150 340 114 88 46 0 300 362 114 88 60 0 12 300 150 410 114 109 80 0 300 422 114 109 82 5 14 350 150 451 127 113 99 0 300 486 127 113 123 5 16 400 150 514 140 140 134 5 300 540 140 140 164 0 18 450 150 549 152 163 152 0 300 597 152 163 207 0 20 500 150 606 152 181 201 0 300 654 152 181 274 0 ...

Страница 44: ... 350 400 500 600 700 800 NPS 8 10 12 14 16 20 24 28 32 A mm 90 120 140 B mm 600 665 715 755 900 995 1 110 1 220 1 325 Weight kg 33 48 60 82 121 197 296 367 530 1 The specifications refer to equipment PN 16 For information on other types please contact the manufacturer ...

Страница 45: ... 4 16 21 15 01 9 21 BB 36 40 40 40 37 4 35 5 33 6 27 8 25 91 24 01 14 71 BB 17 63 63 63 59 55 9 52 9 43 8 40 81 37 81 23 8 BB 18 100 100 100 93 6 88 8 84 0 69 6 64 81 60 01 36 8 BB 19 160 160 160 149 8 142 1 134 5 111 4 103 71 96 01 58 9 1 Requires special issue Inconel springs Admissible maximum pressure bar for equipment with stainless steel body Type DN PN Temperature C 196 20 100 200 300 400 4...

Страница 46: ...91 BB 36 50 500 40 40 38 1 30 2 25 8 23 51 22 61 22 41 22 21 20 91 20 71 BB 17 125 600 63 63 60 3 47 6 40 6 37 01 35 61 35 31 34 91 32 91 32 61 BB 18 125 600 100 100 95 2 75 6 64 4 58 81 56 61 56 01 55 41 52 31 51 71 BB 19 150 300 160 160 152 4 121 0 103 1 94 11 90 51 89 61 88 71 83 71 82 81 1 Requires special issue Inconel springs If the operating temperatures exceed 300 C intercrystalline corros...

Страница 47: ... 600 82 7 69 6 58 3 54 9 52 1 50 11 48 61 46 81 1 Requires special issue Inconel springs If the operating temperatures exceed 300 C intercrystalline corrosion may occur Do not subject the equipment to operating temperatures higher than 300 C unless intercrystalline corrosion can be ruled out Admissible maximum pressure bar for equipment with stainless steel body Type Class Temperature C 196 20 100...

Страница 48: ...rubber 10 to 90 Limiting conditions for equipment with dampers The admissible limiting conditions for equipment with dampers are indicated in the following tables DN 200 250 300 350 400 500 600 700 800 Service pressure barg 16 16 13 9 13 9 5 8 6 Pressure at inlet side 1 bar 0 5 Temperature C 110 1 With pump switched off Pressure and temperature ratings for equipment with seat gasket Type Temperatu...

Страница 49: ...turer To download the current Declaration of Conformity or Declaration by Manufacturer go to www gestra com documents or contact GESTRA AG Münchener Straße 77 28215 Bremen Germany Telefon 49 421 3503 0 Telefax 49 421 3503 393 E Mail info de gestra com Web www gestra de This declaration is no longer valid if modifications are made to the equipment without consultation with us ...

Страница 50: ...50 ...

Страница 51: ...51 ...

Страница 52: ...world www gestra de GESTRA AG Münchener Strasse 77 28215 Bremen Germany Phone 49 421 3503 0 Fax 49 421 3503 393 e mail info de gestra com Web www gestra com 819649 00 04 2019 kx_mm 808997 00 GESTRA AG Bremen Printed in Germany ...

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