pressure seal bonnet - babcock...

PRESSURE SEAL BONNET

WEDGE GATE VALVE

BABCOCK VALVES VAL

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BABCOCK VALVES VAL

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1BODYAvailable both in cast and forged steel, it has been designed to meet all the requirements of ASME, API and British StandardsThe body-bonnet connection is made by a pressure seal gasket. Its pre-stress condition is achieved by means of bolts screwed to the bonnet flange.Ends are normally butwelding although they can be also flanged on request.All bodies are provided with integrally cast bosses, located and sized in accordance with ASME B16.34, which allow the provision of drain and by-pass connections, supplied on request.

2BONNETUsually constructed in the same materials as the body, being designed so that the wall thickness always exceeds the requirement of API 600.A back seat bush (13) is fitted inside the bonnet lower cavity, to provide a closure when de valve is fully opened. This permits the valve to be repacked while in service.The bonnet has a deep stuffing box in which packing rings are placed.Stuffing box is designed with sufficient space to allow lantern ring to be fitted.

3YOKESeparate rigid yoke is provided to withstand the thrust of the actuator. Large windows allow easy access and ventilation of the packing area. The yoke is connected to the body by a two piece clamping ring (193) an four clamp bolts. This connection is very solid and enables easy maintenance at site.The upper part of the yoke is suitably machined to house the yoke sleeve (11).The yoke is usually made of cast carbon steel regardless the type of body material, unless otherwise required by the client.

4STEMConstructed in stainless steel, machined from solid bar stock. The single piece stem in connected to the wedge by a tee connection.

A conical shoulder is also provided to ensure effective and tight seal backseat which allows the stuffing box to be replaced with the valve in service. The stem dimensions conform to API 600. Connection stem-wedge also meets the requirements of API 600. Pull test has been carried out to verify the design. Special care is taken in the machining of the stem, including the final polishing of the travelling area (contact with the stuffing box). This allows a low-friction surface and a superior corrosion resistance.

22 - 128GLAND BOLTS AND NUTSThe gland studs are of the eyebolt type, which can be swing outwards for ease of gland repacking.

6SEAT RINGSThey are supplied in forged stainless steel, hardfaced with Stellite-6 (2 mm of minimum thickness). Seat rings are renewable, normally welded to the body.

Sealing contact surfaces, are lapped for a perfect tight seal. Controlled hardness differentials are maintained between the wedge discs and the seat rings, as required by API 600 Std.

7WEDGEThe wedge is normally constructed in forged stainless steel for diameters up to 3”, and in cast steel for larger sizes.

Wedge is commonly flexible, though it can be also solid. Guides are carefully machined for a smooth sliding in the body cast-in guides.

Contact faces are overlayed with stellite-6 (2 mm. ominimumn. thickeness).

193

YOKE CLAMP

The connection between body and yoke is created by means of a bipartite clamping ring. The internal connection between the clamp, body and yoke is conical, assuring a perfect tightening.

11

YOKE SLEEVE

Designed to permit removal from the bonnet or yoke while the valve is in service.

The yoke bushing assembly is mounted in ball bearings. It is normally made of cast aluminium bronze, having high resistance to wear and high melting point. Other materials such as

Ni-resist can be supplied on request.

13

BACK SEAT

The back seat can be supplied as a threaded stainless steel bush, welded to the bonnet or of integral type. It can be hardfaced with Stellite-6 or orther materials as required.

This seat allows the valve to be repacked under pressure.

15

HANDWHEEL

The handwheel can be supplied either in cast construction of fabricated from steel tube.

The handwheel is designed to allow easy operation of the valve. Other types of control are available and, in some cases, are indispensable for a good operation, for instance:

Chain wheelGear operatorHammer handwheelGeared hammer handwheelElectric actuatorElectro-hydraulic actuator Pneumatic actuator

134

BONNET RETAINER

Designed sufficiently resistant to withstand the forces transmitted by the bonnet screws (111).

The bonnet retainer is normally made of the same material as the body, but it can be constructed in any other material on request. It is machined to match exactly with the body, what guarantees a perfect alignment of the unit.

132

SPACER RING

Made of a single piece coverting the upper part of the pressure seal gasket. It is normally manufactured in the same material as the body.

133

GASKET RETAINER

It is made normally of the same material as the body, and constructed in four pieces, called segments. The segments are sized to minimize the gap among them.

The segmental ring supports all the forces transmitted from the bonnet through the spacer ring. It is calculated to withstand all the force without cracking.

17

PRESSURE SEAL GASKET

The pressure seal gaskets are usually supplied of compressed graphite, bordered on the upper and lower edges with braided filaments of graphite and Inconel.

Gaskets can also be made in stainless steel.

5 - 125

GLAND BUSHING AND GLAND FLANGE

They are supplied in two separate self aligning pieces, to ensure uniform pressure is effected during tightening of the packing.

The upper part of the gland, which comes in contact with the gland flange, is spherical in shape.

The gland flange is made of carbon steel but, upon request, other materials can be supplied.

68PACKINGPacking is made of an adequate number of preformed rings.

For general applicatios high grade graphite material is supplied, using compressed rings in the center and braided anti-extrusion rings on top and bottom. Graphite is selected of an approved quality.

Other types of packing are also available for particular services.

4500ASME CLASS

SIZE 2” 2 I/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 22” 24” 28” 32”

A 514,3 514,3 432

F (RF) – – –

J (RJ) – – –

B 806 806 806

øC 457 457 457

WEIGHT 418 416 508

OPERATION HANDWHEEL

Cv 109 163 272

2500ASME CLASS

SIZE 2” 2 I/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 28” 32” 36”

A 279,4 330,2 368,3 457,2 609,6 762 914,4 1041,4 1117,6 1244,6 1397 1397 1625 1905 2184 2413

F (RF) 450,8 508 577,8 673,1 914,4 1022,3 1270 1422,4

J (RJ) 453,8 514,3 584,1 682,7 927,1 1038 1292,3 1444,7

B 515 736 736 840 1000 1220 1484 1680 1842 1988 2250 2510 2950 3450 4150 4900

øC 381 457 457 534 800 600 750 600 900 600 900 900 900 900 900 900

WEIGHT 120 138 146 210 396 685 1326 2066 2680 3250 4350 5680 8300 11500 17700 21000

RAEGLEEHWDNAHNOITAREPO

Cv 145 200 300 500 1250 2200 3600 5200 6400 8500 10875 13325 19725 29183 37720 50592

1500ASME CLASS

SIZE 2” 2 I/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 28” 32” 36”

A 215,9 254 304,8 406,4 558,8 711,2 863,5 990,6 1066,8 1193,8 1346 1473,2 1752,6 2209 2413 2565

F (RF) 368,3 419,1 469,9 546,1 704,8 831,8 990,6 1130,3 1257,3 1384,3 1536,7 1663,7 1943,1 2209 2413 2565

J (RJ) 371,3 422,1 472,9 549,1 711,1 841,4 1000,2 1146 1276,3 1406,6 1559 1686 1971,5 2228 2432 2584

B 530 758 758 861 1002 1080 1490 1530 1850 1960 1950 2385 2795 3405 4150 4950

øC 254 381 381 457 686 686 600 750 900 750 600 900 900 900 900 900


WEIGHT 65 73 73 160 330 566 936 1280 2050 2415 3712 4500 7150 9650 13250 16150

Cv 218 300 450 817 1875 3275 5250 7525 9175 12150 15500 19600 28775 42572 55027 73806

ASME CLASS

SIZE 2” 2 I/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 25” 30” 36”

A 215,9 304,8 304,8 355,6 508 660,4 787,4 914,4 990,6 1092,2 1219,2 1320,8 1549,4 1574 1778 2032

F (RF) 368,3 419,1 381 457,2 609,6 736,6 838,2 965,2 1028,7 1130,3 1219,2 1320,8 1549,4 1574 1778 2032

J (RJ) 371,3 422,1 384 460,2 612,6 739,6 841,2 968,2 1038,3 1139,9 1231,9 1333,5 1568,4 1593,5 1797 2051

B 530 638 638 831 1072 1186 1500 1540 1725 1836 2220 2412 2650 2880 4060 4885

øC 254 305 305 381 610 686 800 1000 750 750 1000 750 1000 750 1000 1000

WEIGHT 65 67 61 88 219 384 664 850 1480 1880 2760 3590 5350 5680 9000 13500


Cv 218 300 500 950 2175 3825 6125 8850 10875 14325 18300 22875 33275 36678 50198 87027

900

600ASME CLASS

SIZE 2” 2 I/2” 3” 4” 6” 8” 10” 12” 14” 16” 18” 20” 24” 26” 28” 32” 36”

A 177,8 215,9 254 304,8 457,2 548,2 711,2 812,8 889 990,5 1092,2 1193,8 1397 1447 1549 1778 2082

F (RF) 292,1 330,2 355,6 431,8 558,8 660,4 787,4 838,2 889 990,5 092,2 1193,8 1397 1447 1549 1778 2082

J (RJ) 295,1 333,2 358,6 434,8 561,8 663,4 790,4 841,2 892 993,6 1095,2 1200,1 1406,6 1456,6 1558,6 1787,6 2091,5

B 500 533 686 813 1067 1168 1397 1626 1753 1981 2108 2489 2794 2990 3150 3550 3800

øC 203 203 254 305 355 510 510 610 610 610 915 915 915 915 915 915 915


WEIGHT 30 32 48 78 166 275 434 600 884 1177 1527 2395 3409 3950 4750 8950 8175

Cv 273 375 550 1025 2375 4225 6625 9850 12025 15900 20100 24900 36525 46300 54038 69848 93685

NOTES: — Ends to end dimensions are for short pattern, longpatterns are available on request.

— The valve weight is for Butt Welding ends— Dimensions in mm. and weights in kg.— Dimensions not shown for classes 2500 and 4500

to customer requirements

SEAL B Flexible wedge

J (RJ)

F (RF)

A

B (OPEN)

øC

BABCOCK VALVES VAL

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M A E

Overpressureprotection

device

By-pass &Overpressure

protectionsystem

Bevel gearElectricactuator

YOKE

MAIN VALVE

WOLFWOLF

YOKE

For others accesories and equipment see technical catalogue

BABCOCK VALVES VAL

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S MPART. Denomination CARBON STEEL ALLOY STEEL STAINLESS STEEL

M8FC 153 A MTSA9CW 712 A MTSABCW 612 A MTSAYDOB1

613F 281 A MTSA22F 281 A MTSA501 A MTSATENNOB2

BCW 612 A MTSABCW 612 A MTSABCW 612 A MTSAEKOY3

613F 281 A MTSAA6F 281 A MTSAA6F 281 A MTSAMETS4

613F 281 A MTSAA6F 281 A MTSAA6F 281 A MTSADNALG5

6 SEAT RING ASTM A105+STELLITE ASTM A182F22+STELLITE ASTM A351CF8M+STELLITE

7 WEDGE ASTM A216WCB+STELLITE ASTM A217WC9+STELLITE ASTM A351CF8M+STELLITE

11 YOKE SLEEVE ALUMINIUM-BRONZE ALUMINIUM-BRONZE ALUMINIUM-BRONZE

13 BACK SEAT ASTM A105+STELLITE ASTM A182F22+STELLITE ASTM A182F316+STELLITE

LEETS NOBRACLEETS NOBRACLEETS NOBRACLEEHWDNAH51

17 PRESSURE SEAL GASKET COMPRESSED & BRAIDED GRAPHITE COMPRESSED & BRAIDED GRAPHITE COMPRESSED & BRAIDED GRAPHITE

LEETS NOBRACLEETS NOBRACLEETS NOBRACTUN EVEELS02

H2 491 A MTSAH2 491 A MTSAH2 491 A MTSATUN DNALG22

LEETS NOBRACLEETS NOBRACLEETS NOBRACEGNALF EKOY42

ETIHPARGETIHPARGETIHPARGGNIKCAP ETAIDEMRETNI86

68A END PACKING BRAIDED GRAPHITE BRAIDED GRAPHITE BRAIDED GRAPHITE

LAICREMMOCLAICREMMOCLAICREMMOCGNIRAEB57

0414 ISIA0414 ISIA0414 ISIAWERCS PAC EGNALF EKOY111

0414 ISIA0414 ISIA0414 ISIAWERCS PAC TENNOBA111

0414 ISIA0414 ISIA0414 ISIAWERCS PAC RENIATER DNALG811

07 rG 515 A MTSA07 rG 515 A MTSA07 rG 515 A MTSAEGNALF DNALG521

7B 391 A MTSA7B 391 A MTSA 7B 391 A MTSADUTS PMALC EKOY721

7B 391 A MTSA7B 391 A MTSA7B 391 A MTSATLOB DNALG821

H2 491 A MTSAH2 491 A MTSAH2 491 A MTSATUN PMALC EKOY921

613F 281 A MTSA22F 281 A MTSA501 A MTSAGNIR RECAPS231

613F 281 A MTSA22F 281 A MTSA501 A MTSARENIATER TEKSAG331

07 rG 515 A MTSA07 rG 515 A MTSA07 rG 515 A MTSARENIATER TENNOB431

07 rG 515 A MTSA07 rG 515 A MTSA07 rG 515 A MTSAPMALC EKOY391

07 rG 515 A MTSA07 rG 515 A MTSA07 rG 515 A MTSARENIATER DNALG491

LAICREMMOCLAICREMMOCLAICREMMOCGNITTIF ESAERG591

Other materials areavailable on request.

The trim components are:��:[LT��:Lat ring seating surfaces��>LKNL�ZLating surfaces��)HJR�ZLat seating surface

BABCOCK VALVES VAL

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BABCOCK VALVES, S.L. P.E. Abra Industrial, Parcela 1.5.6 48530 Ortuella – Bizkaia (SPAIN)

Phone: + 34 94 4536423Fax: + 34 94 4535739

Email ID: [email protected]

pressure seal bonnet - babcock...

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