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Double Block and Bleed Dual Expanding Plug Valve
Norwegian distributor: Haakon Ellingsen ASÅrenga 8, N-1340 Skui | P.O. Box 184, N-1309 Rud
Phone + 47 67151200 | Fax +47 67151201post@ellingsen.biz | www.ellingsen.biz
01
EXECUTIONS DBBV
Standard ExecutionPart no. Description
1 Body2 Lower plate 3 Upper plate 4 Plug 5 Slip6 Seat seal 7 Stem8 Yoke 10 Adjusting bushing 11 Gland 12 Back seat 13 Gland flange 14 Helix trunnion 15 Helix trunnion fixing plate 16 Roll pin 17 Stem pin 20 Gasket21 Packing 23 Name plate 30 Body nut 31 Body / lower plate stud 32 Body / upper plate stud 33 Gland stud 34 Upper plate / yoke stud 35 Gland nut 36 Upper plate / yoke nut 37 Key40 Stem nut 41 Top flange 42 Handwheel 43 Bolt44 Washer 45 Nut46 Protection pipe 47 Position indicator 48 Bearing plate 49 Bearing56 Nut 81 Drain plug 82 Lifting lug 83 Grease nipple 84 Automatic body bleed 91 ABB detection ring 93 Setscrew
02
FEATURES DBBV
Features Control Seal™ Double Block and Bleed ValvesFriction FreeAn important aspect of a valve is the sealing mechanism. Almost all valves, like standard Ball, Gate and Butterfly valves have their sealing mechanism based upon shear force, friction and tearing. The Control Seal ™ sealing mechanism is based upon a radial movement only. The sealing is not liable to shear, friction or tearing. This means no abrasion on the seal and compared to other type of valves, results into an exceptional long lifetime.
Double Block and BleedControl Seal ™ valves have a double block and bleed function up and downstream. Normally this can only be achieved by using two (2) valves and a spool piece with a drain valve. The use of a Control Seal ™ Double Block and Bleed Valve will safe cost, space and maintenance for a long period.
In-Line Maintenance and ServiceAs the Control Seal ™ valve is designed for easy and low cost maintenance Stem packings can be adjusted while the valve is in service. All valves are executed with a back seat. Bottom and top entry is possible while the valve is inline. No special tools are required.
Non-SlamThe self-locking operate mechanism on all Control Seal ™ valves, provides that the closing member (plug) cannot rotate due to line forces. Therefore there is no danger of line slam, shock or injury of personnel.
Fire SafeThe Control Seal ™ valves have been Fire safe tested by independent laboratories and has passed the test to BS 6755 part 2 and API 6FA succesfully. These tests have been wittnessed by Lloyds on several valves.
Advantages of the Control Seal ™ Design.► Friction free opening and closing, increasing the lifetime of the valve.► Corrosion and wear resistant materials are used on the closure members.► Bottom and top access for inline inspection and maintenance.► Adjustable stem packing while the valve is in service.► All valves are executed with a backseat, which gives the possibility to renew stem packing under pressure.► Non lubricated seal.► Pressure independent sealing.► No coupling cam in the stem construction.► Topworks according to ISO 5210
Optional Valve Executions► Control Seal ™ valves can be supplied in a variety of materials and are also available in accordance with DIN standards.► Stem extensions and gas column for cryogenic service► Control Seal ™ Double Block and Bleed Valves can be supplied with various types of Viton, which depends on the medium.► For remote controll electrical, pneumatic and hydraulic actuators can be installed.
Double Block & Bleed Valve ApplicationsDouble Block & Bleed expanding plug Valves are often used in the following applications:► Fiscal metering systems for gas and oil► Ship and truck loading services► Tank storage► Transport pipeline services► Clean hydrocarbon services► Aviation fuel services► MTBE services
03
HOW IT WORKS
Opening and Closing Sequence DBBV
1. OpenValve fully open. Seating slips are protected from flow path.
2. Start to closePlug is rotating. There is no contact between body and seating slips.
3. ExpandingPlug / slips have rotated 90°. Plug starts expanding slips. Slips only move perpendicular to body seats. Plug / slip assembly is kept centred in body by top and bottom bushings.
4. Double Block and BleedValve seated.Resilient seals have been compressed. Resilient seals cannot be damaged by operator over-torque. Double block and bleed function can be tested by opening the bleed valve.
5. Start to OpenValve starts opening.Plug moving up, retracting slips from the body seats. Strong dovetail and stems retract the slips. Plug is kept centred in body by top and bottom bushings.
6. Slips retractedSlips have been retracted prior to rotation.(Further workings as figure 1 and 2 in reversed order).
04
BLEED SYSTEMS
BLEED SYSTEMS FOR DBBV
Automatic Body Bleed (ABB)
The Control Seal Double Block and Bleed
Valve automatic body bleed is actuated when the valve is closed. As an option the isolating valve can be provided with ‘lock open’ to avoid any human error.Caution: When the Double Block and Bleed Valve comes to its closed position, a cam opens the Automatic Bleed Valve allowing fluid to escape. As the valve reaches its fully closed position, the spurting liquid should cease, showing positive verification of double seating. A proper drain system is required as spilled liquid could be hazardous.
Thermal Relief Upstream with Gauge (TRU-G)
To avoid body pressure due to thermal
expansion, a relief valve with gauge can be provided. This means no emission to the atmosphere and no sump system is required. Relief always set on 25 psi.
With this system on the Control Seal Double
Block and Bleed Valve, the thermal relief valve releases the overpressure from thebody cavity which may be caused by thermal expansion. The system releases from the body cavity to the upstream side of the valve.
Thermal Relief Upstream (TRU)
Manual Bleed Valve with Gauge (MVB-G)
A manual bleed valve connected with gauge
can be provided when emission is undesirable. The gauge will indicate the cavity pressure and the seal tightness.Note: Body pressure can be increased due to thermal effects, which can indicate false leakage.
Manual Bleed & Thermal Relief (MBTR)
This principle is the same as that of the TRU,
however with the possibility to check the integ-rity of the Double Block and Bleed Valve manually.Note: The relief valve is set to open at 25 psi on all valves regardless of their working pres-sure. With the Control Seal DoubleBlock and Bleed Valve closed, the relief valve will open at 25 psi above upstream pressure. This system functions only when the Control Seal DBBV is closed and the isolation valve is open.Caution: All automated Control Seal Double Block and Bleed Valves require some form of body pressure relief (TRU / MBTR / ABB / MBV-G / TRU-G), otherwise the valve may be difficult to open or may stick in closed position.
Bleed valve for manual operation. The Control
Seal Double Block and Bleed Valve must always be bleeded in closed position. The MBV is the most simple bleed system.
Manual Bleed Valve (MBV)
05
DIMENSIONAL DATA
Dimensional Data - ANSI Class 150 - Reduced Bore - DBBV
Notes:
- Dimensions are reference only. Request certified
drawings when ordered
- HO only up to 6”
- Weight = Given weights are valid for Carbon Steel
valves without operating device (bare stem).
Handwheel Operated Gearbox Operated Actuator Operated
Size AB
HOB
GOB
AOBtHO
BtGO
BtAO Bb C D** E X*** Weight
CvValue
[inch] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [GPM]
2
3
4
6
8
10
12
14
16
18
20
24
30
36
216
203
229
266
292
330
355
381
406
864
914
914
1270*
1981*
770
745
813
1110 920
1042
1190
1396
1550
1600
1855
2000
2293
2900
4386
579
557
613
865
982
1060
1257
1390
1436
1645
1672
1912
1895
4386
370
345
370
510 524
592
633
752
828
858
1032
1058
1172
1704
2296
412
390
395
590
652
981
806
880
906
1070
1075
1195
1960
2296
166
175
218
275
330
379
451
510
530
575
598
716
997
2240
275
275
375
375
375
450
450
450
650
650
850
850
1000
1500
255
260
295
394
470
532
645
730
780
885
1050
1245
1750
2200
200
230
224
295
320
330
385
396
415
620
590
710
946
1150
-
4
4
4
4
4
4
4
4
-
-
-
-
-
60
80
86
170
225
270
420
520
595
1200
1250
1980
4170
4500
234
335
794
1472
2430
2485
4938
6145
6939
10631
11261
15163
26090
51183
* Manufacturer standard face to face dimensions
** D = Clearance to remove slips
*** X = Number of tapped holes per flange
06
DIMENSIONAL DATA
Dimensional Data - ANSI Class 300 - Reduced Bore - DBBV
Notes:
- Dimensions are reference only. Request certified
drawings when ordered
- HO only up to 6”
- Weight = Given weights are valid for Carbon Steel
valves without operating device (bare stem).
Size AB
HOB
GOB
AOBtHO
BtGO
BtAO Bb C D** E X*** Weight
CvValue
[inch] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [GPM]
2
3
4
6
8
10
12
14
16
18
20
24
216
283
305
403
419
457
502
762
838
914
991
1321
770
800
1053
1124 1109
1297
1508
1824
1652
1910
2162
2338
2544
621
650
810
878
1003
1218
1360
1350
1600
1850
1990
2230
371
376
492
515 883
605
755
852
1086
1304
1521
1662
1803
454
460
580
603
654
810
875
784
995
1209
1314
1489
167
190
230
275
349
408
484
566
605
641
676
741
275
375
375
500
500
650
850
1000
1000
1250
1250
1500
295
320
390
465
570
725
825
622
665
706
744
815
200
230
295
340
360
420
420
440
450
465
620
780
4
4
4
4
4
4
4
54
88
177
246
319
529
680
848
900
1859
3695
6885
234
335
701
1301
2430
3271
4938
6145
6939
10631
11261
15872
* Manufacturer standard face to face dimensions
** D = Clearance to remove slips
*** X = Number of tapped holes per flange
07
DIMENSIONAL DATA
Dimensional Data - ANSI Class 600 - Reduced Bore - DBBV
Notes:- Dimensions are reference only. Request certified
drawings when ordered
- Weight = Given weights are valid for Carbon Steel
valves without operating device (bare stem).
* Manufacturer standard face to face dimensions
Size AB
HOB
GOB
AOBtHO
BtGO
BtAO Bb C D** E X*** Weight
CvValue
[inch] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [GPM]
2
3
4
6
8
10
12
292
356
432
559
660
787
838
647
752
1150
1330
1552
1975
2049
550
652
865
1050
1266
1510
1750
333
420
585
711
865
1025
1225
445
465
608
732
849
1017
1350
214
232
255
320
417
492
524
300
500
500
1000
1000
1250
1500
235
290
425
545
725
864
576
240
255
330
385
455
520
445
125
195
238
420
625
975
1225
234
335
561
1301
2403
3271
4938
** D = Clearance to remove slips
*** X = Number of tapped holes per flange
08
FEATURES DBBV
DBBV - ANSI Class 900 - DBBVDouble Block & Bleed expanding plug valve 900#ControlSeal B.V. has recently designed, produced and tested a range of 900# Double Block & Bleed expanding plug valves. The valves passed testing successfully and were supplied for service in metering skids.
Dimensions and weights for the new 900# are available upon request.
Please find below a picture of a 3” Full Bore 900# DBBV
09
DIMENSIONAL DATA
Dimensional Data - ANSI Class 150 - Full Bore - DBBV
Notes:- Dimensions are reference only. Request certified
drawings when ordered
- Weight = Given weights are valid for Carbon Steel
valves without operating device (bare stem).
* Manufacturer standard face to face dimensions
Handwheel Operated Gearbox Operated Actuator Operated
Size AB
HOB
GOB
AOBtHO
BtGO
BtAO Bb C D** E X*** Weight
CvValue
[inch] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [GPM]
4
6
8
10
12
14
16
18
20
24
30
432
534
635
788
915
864
889
1220
1220
1397
1728
1060
1189
1232
1300
1656
1900
2097
2525
2594
3228
3557
795
892
924
975
1242
1425
2098
1894
1945
2420
2668
489
559
654
676
890
1095
1156
1549
1553
2100
2350
635
726
850
878
1157
1425
1502
2014
2018
2730
3055
370
428
478
524
566
605
641
676
741
828
907
300
300
500
650
850
1000
1000
1250
1250
1500
1500
407
470
526
546
622
665
706
744
815
911
998
280
325
355
365
370
440
450
465
620
780
1045
210
277
330
350
400
550
600
1000
1500
2300
3500
2070
4860
9000
16020
23400
28800
39600
52200
67500
100080
131200
** D = Clearance to remove slips
*** X = Number of tapped holes per flange
10
DIMENSIONAL DATA
Dimensional Data - ANSI Class 300 - Full Bore - DBBV
Notes:- Dimensions are reference only. Request certified
drawings when ordered
- Weight = Given weights are valid for Carbon Steel
valves without operating device (bare stem).
* Manufacturer standard face to face dimensions
Size AB
HOB
GOB
AOBtHO
BtGO
BtAO Bb C D** E X*** Weight
CvValue
[inch] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg] [GPM]
4
6
8
10
12
14
16
18
20
24
457
559
686
826
965
864
889
1220
1220
1379
1030
1222
1532
1797
1880
1991
2245
2497
2703
2931
772
916
1149
1348
1410
1494
1684
1872
2027
2198
460
594
854
1073
1114
1086
1304
1521
1662
1803
416
772
1110
1395
1448
1411
1695
1977
2160
2344
370
428
478
524
566
605
641
676
741
826
650
650
850
850
1000
1000
1250
1250
1500
1500
407
470
526
576
622
665
706
744
815
911
280
325
355
365
370
440
450
465
620
780
277
365
435
640
790
900
955
1950
3850
4400
1980
4860
9000
15390
22500
27900
37800
50400
64800
91800
** D = Clearance to remove slips
*** X = Number of tapped holes per flange
11
APPLICATIONS DBBV
Dual Expanding Double Block & Bleed Plug Valves General Data
Design, Dimensions and Marking According to:► API specification 599
► API specification 600
Construction:► 3-piece construction, split body, top and bottom entry, trunnion mounted, antistatic design, seating slips
replacable through removable bottom plate,
reduced or full bore.
Characteristics:► Non contact, duel expanding, Double Block & Bleed Plug Valve
Face to Face Dimensions According to:► ANSI B16.10
► Manufacturers standard
Flanged Connections According to:► ANSI B16.5 Raised Face smooth finish, stock finish or Ring Type Joint
► MSS-SP-44 Raised Face smooth finish, stock finish or Ring Type Joint
Fire Safe Accoring to:► BS 6755 part 2 including AMD 6272 / 6712
► API specification 6FA
Marking in Accordance with:► MSS-SP-25
► European Directive PED 97/23/EC
► API 6D
► Optional Marking to client specification
Testing According to:► API 6D
► API 598
► BS 6755 part 1
► Optional client specification
Operating Devices:► Handwheel
► Gearbox
► Actuator
Bottom Drain Plug:► Standard included
Optional:► ATEX Cat II 2 G/D
Control Seal ™ Double Block & Bleed Valves in line
12
DELIVERY PROGRAMME
Control Seal™ Delivery Programme
Double Block and Bleed Valves (DBBV)Size: 1½” up to and including 42”Class: 150# up to and including 900#
Rising Stem Ball Valve (RSBV)Size: 1” up to and including 42”
Class: 150# up to and including 4500#
Axial Flow Valve (AFV)Size: 4” up to and including 48”Class: 150# up to and including 4500#
Control Seal B.V.
Sales, Engineering & Services Office:Waardsedijk Oost 10-4, 3417XJ Montfoort, the Netherlands Phone: +31 (0)348 474 315, Fax: +31 (0)348 474 238
Head Office & Manufacturing Facility:Farmsumerweg 43, P.O. box 330, 9900AH Appingedam, the Netherlands Phone: +31 (0)596 652 222, Fax : +31 (0)596 629 405
E-mail: sales@controlseal.nl Website: http://www.controlseal.nl