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Tripple offset butterfly valves

(PA900 series)
Tripple offset butterfly valves. Изображение
  1. Description
  2. Catalog
  3. Design
  4. Classifier
  5. The main overall and mounting dimensions
  6. Specifications
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Price: by request
In stock: yes
Body material: WCB steel
Disk material: WCB steel
Seat material: ss304+graphite
Load more (16648)

Description

Butterfly valves with triple offset series PA900 are designed for installation on pipelines as shut-off and control valves.

Triple offset in the valve design minimizes frictional losses during opening and closing, reducing the torque on the stem required for control.

The use of prefabricated metal-graphite or all-metal seat in valves series PA900 allows to operate them under high pressure and temperature conditions, which is an important advantage over valves with elastomer seat.

With opening angles up to 20-70° valves can be used for adjusting the flow of working medium.

These valves are widely used in process pipelines in power engineering, metallurgy, oil, oil refining, petrochemical, chemical industries, water supply and sanitation facilities, and utilities.

Manufacture and supply: Acc. to TU 3700-001-55604618-2013
Type of construction: Butterfly valves with triple offset
Nominal diameter: DN 50 – DN 2000 mm
Nominal pressure: PN 6 , 10, 16, 25, 40, 63, 100 kgf/cm2
Temperature of working medium: Up to +500 ° С depending on the seat material
Operation:

– gearbox DN 50-2000 mm

– electric or pneumatic actuator DN 50-2000 mm

Leakage class: «А» acc. to GOST 9544-2015
Main working mediums: Water, air, steam, natural gas and gaseous hydrocarbons, petroleum, petroleum products, coke oven gas, ammonia, acids, alkalis, alcohols
Connection type:

- wafer type with smooth lugs;

- flanged;

- welded.

Connecting flanges according to GOST 33259-2015

Installation position: Any, except the position "electric actuator down" for valves with electric actuator
Flow direction of the working mediums: Unidirectional, along the arrow on the valve body, bidirectional upon request
Climatic version: У, УХЛ, Т, ТМ, ТВ acc. to GOST 15150-69
Top flange: Acc. to ISO 5211

Design

Designation of PA 900 butterfly valves. Image
Position Description
1 Body
2 Disk
3 Seat
4 Pressure ring
5 Stem
6 Packing gland flange
7 Packing
8 Bolt
9 Gearbox
Seat materials Description
Steel SS304 +graphite Metal-on-metal seat - stack seat of graphite and stainless steel rings
Steel SS304 Metal-on-metal seat is all-metal, used at high temperatures
PTFE Universal thermal and chemical resistance
Material of body and disk Description
WCB Carbon steel for non-corrosive mediums;
CF8 - Corrosion resistant steel, used in aggressive mediums and at low temperatures.
CF8M - Corrosion resistant steel with molybdenum, used in very aggressive mediums and at low temperatures.
LC2 – Alloyed steel, used at low temperatures.

Classifier

Designation of PA900 series butterfly valves. Image

The main overall and mounting dimensions

Wafer type connection with smooth lugs

Basic overall and connection dimensions of wafer type butterfly valves PA 900. Image
DN PN10 PN16
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 70 235 43 125 4х18 11 70 235 43 125 4х18 11
50 70 235 43 125 4×18 11 70 235 43 125 4×18 11
65 75 250 46 145 4×18 12 75 250 46 145 4×18 12
80 85 150 49 160 4×18 13 85 250 49 160 4×18 13
100 100 260 56 180 8×18 14 100 260 56 180 8×18 14
125 110 280 64 210 8×18 21 110 280 64 210 8×18 21
150 150 310 70 240 8×22 25 150 310 70 240 8×22 25
200 210 380 71 295 8×22 38 210 380 71 295 12×22 38
250 235 395 76 350 12×22 60 235 395 76 355 12×26 60
300 265 425 83 400 12×22 76 265 425 83 410 12×26 76
350 300 480 92 460 16×22 109 300 480 92 470 16×26 109
400 355 535 102 515 16×26 130 355 535 102 525 16×30 130
450 380 570 114 565 20×26 135 380 570 114 585 20×30 135
500 395 590 127 620 20×26 206 395 590 127 650 20×33 206
600 450 675 154 725 20×30 312 450 675 154 770 20×39 312
700 520 770 165 840 24×30 369 520 770 165 840 24×39 369
800 590 840 190 950 24×33 570 590 840 190 950 24×39 570
900 660 915 203 1050 28×33 750 660 915 203 1050 28×39 750
1000 730 1050 216 1160 28×33 930 730 1050 216 1170 28×45 930
1200 870 1190 254 1380 32×39 1183 870 1190 254 1390 32×52 1183
1400 1015 1350 279 1590 32×45 1415
DN PN25 PN40
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 70 235 43 125 4×18 11 80 250 43 125 4×18 12
65 75 250 46 145 8×18 13 85 265 46 145 8×18 14
80 85 250 49 160 8×18 14 95 265 64 160 8×18 15
100 100 260 56 190 8×22 16 115 275 64 190 8×22 17
125 110 280 64 220 8×26 22 125 295 70 220 8×26 25
150 150 310 70 250 8×26 32 165 330 76 250 8×26 36
200 210 380 71 310 8×26 48 225 395 89 320 12×30 50
250 235 395 76 370 8×30 68 250 410 114 385 12×33 79
300 265 425 83 430 12×30 98 285 450 114 450 16×33 128
350 300 480 92 490 12×33 112 330 510 127 510 16×33 233
400 355 535 102 550 12×33 145 390 570 140 585 12×39 272
450 380 570 114 600 16×33 198 415 595 152 610 16×39 307
500 395 590 127 660 16×39 287 430 625 152 670 16×45 378
600 450 675 154 770 16×39 405 485 710 178 795 16×52 465
700 520 770 165 875 20×45 461 535 810 229 900 20×52 679
800 590 840 190 990 20×45 712 630 890 241 1030 20×56 817
900 660 915 203 1090 24×52 832
1000 730 1050 216 1210 24×56 1270
1200 870 1190 254 1420 28×56 1464
DN PN63 PN100
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 80 250 43 135 4×22 17
65 85 265 46 160 8×22 19
80 95 265 64 170 8×22 20
100 115 275 64 200 8×26 23 115 275 64 210 8×30 26
125 125 295 78 240 8×30 34 125 295 78 250 8×33 38
150 165 330 78 280 8×33 49 165 330 78 290 12×33 56
200 225 395 102 345 8×33 62 225 395 102 360 8×39 96
250 250 410 117 400 8×39 115 250 410 117 430 8×39 130
300 285 450 140 460 12×39 207 285 450 140 500 12×45 227
350 330 510 155 525 12×39 259 330 510 155 560 12×52 290
400 390 570 178 585 12×45 326 390 570 178 620 12×52 367
500 430 625 216 705 16×52 429
600 485 710 232 820 16×56 684

Flange type connection

Basic overall and connection dimensions of flanged butterfly valves PA 900. Image
DN PN10 PN16
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 70 235 108 125 4×18 16 70 235 108 125 4×18 16
65 75 250 112 145 4×18 17 75 250 112 145 4×18 17
80 85 250 114 160 4×18 19 85 250 114 160 4×18 19
100 100 260 127 180 8×18 21 100 260 127 180 8×18 21
125 110 280 140 210 8×18 30 110 280 140 210 8×18 30
150 150 310 140 240 8×22 37 150 310 140 240 8×22 37
200 210 380 152 295 8×22 55 210 380 152 295 12×22 55
250 235 395 165 350 12×22 75 235 395 165 355 12×26 75
300 265 425 178 400 12×22 104 265 425 178 410 12×26 104
350 300 480 190 460 16×22 154 300 480 190 470 16×26 158
400 355 535 216 515 16×26 185 355 535 216 525 16×30 185
450 380 570 222 565 20×26 231 380 570 222 585 20×30 241
500 395 590 229 620 20×26 304 395 590 229 650 20×33 304
600 450 675 267 725 20×30 490 450 675 267 770 20×39 492
700 520 770 292 840 24×30 706 520 770 292 840 24×39 706
800 590 840 318 950 24×33 712 590 840 318 950 24×39 712
900 660 915 330 1050 28×33 950 660 915 330 1050 28×39 980
1000 730 1050 410 1160 28×33 1170 730 1050 410 1170 28×45 1300
1200 870 1190 470 1380 32×39 2030 870 1190 470 1390 32×52 2115
1400 1015 1350 530 1590 32×45 2674 1015 1350 530 1590 32×52 2795
1600 1100 1430 600 1820 36×52 3410 1100 1430 600 1820 36×56 3560
1800 1250 1590 670 2020 40×52 4140
2000 1370 1720 760 2230 44×52 5980
DN PN25 PN40
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 70 235 108 125 4×18 17 80 250 150 125 4×18 17
65 75 250 112 145 8×18 18 85 265 170 145 8×18 19
80 85 250 114 160 8×18 20 95 265 180 160 8×18 22
100 100 260 127 190 8×22 25 115 275 190 190 8×22 28
125 110 280 140 220 8×26 32 125 295 200 220 8×26 44
150 150 310 140 250 8×26 42 165 330 210 250 8×26 65
200 210 380 152 310 8×26 67 225 395 230 320 12×30 76
250 235 395 165 370 8×30 82 250 410 250 385 12×33 120
300 265 425 178 430 12×30 139 285 450 270 450 16×33 165
350 300 480 190 490 12×33 172 330 510 290 510 16×33 260
400 355 535 216 550 12×33 229 390 570 310 585 12×39 330
450 380 570 222 600 16×33 312 415 595 330 610 16×39 370
500 395 590 229 660 16×39 380 430 625 350 670 16×45 450
600 450 675 267 770 16×39 571 485 710 390 795 16×52 660
700 520 770 292 875 20×45 808 535 810 430 900 20×52 1096
800 590 840 318 990 20×45 1287 630 890 470 1030 20×56 1500
900 660 915 330 1090 24×52 1520
1000 730 1050 410 1210 24×56 1860
1200 870 1190 470 1420 28×56 2510
1400 1015 1350 530 1640 32×62 3190
DN PN63 PN100
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L D1 n*d A B L D1 n*d
50 80 250 150 135 4×22 23
65 85 265 170 160 8×22 25
80 95 265 180 170 8×22 27
100 115 275 190 200 8×26 30 115 275 190 210 8×30 35
125 125 295 200 240 8×30 50 125 295 200 250 8×33 58
150 165 330 210 280 8×33 72 165 330 210 290 12×33 84
200 225 395 230 345 8×33 87 225 395 230 360 8×39 125
250 250 410 250 400 8×39 130 250 410 250 430 8×39 153
300 285 450 270 460 12×39 250 285 450 270 500 12×45 290
350 330 510 290 525 12×39 290 330 510 290 560 12×52 330
400 390 570 310 585 12×45 390 390 570 310 620 12×52 445
500 430 625 350 705 16×52 510
600 485 710 390 820 16×56 850

Welded connection

Basic overall and connection dimensions of welded butterfly valves PA 900. Image
DN PN 6-25 PN 40-100
Dimensions, mm Weight with gearbox, kg Dimensions, mm Weight with gearbox, kg
A B L T d1 D A B L T d1 D
80 98 215 180 6 85 92 30 98 215 180 6 85 92 30
100 112 230 190 6 105 114 37 112 230 190 6 105 114 37
125 125 246 200 6 130 138 44 125 246 200 6 130 138 44
150 155 297 210 6 152 159 51 165 315 210 6 152 159 58
200 200 351 230 9 207 219 62 219 370 230 9 207 219 78
250 231 384 250 9 258 274 84 261 422 250 9 258 274 113
300 261 415 270 9 313 325 115 289 490 270 9 313 325 165
350 298 470 290 9 365 377 153 320 528 290 9 365 377 225
400 331 531 310 9 414 426 187 357 568 310 9 414 426 327
450 369 564 330 9 466 478 292 385 626 330 9 466 480 375
500 404 596 350 9 517 530 324 431 670 350 9 517 530 464
600 473 676 390 9 614 630 436 492 737 390 9 614 630 693
700 538 749 430 14 702 720 668
800 615 829 470 14 802 820 889,5
900 628 852 510 14 902 920 1360
1000 730 1013 550 15 1000 1020 1896
1200 850 1137 630 15 1200 1220 2615
1400 980 1348 710 15 1400 1420 3525
1600 1155 1517 790 18 1600 1620 5496

Top flange's dimensions and torque for choosing actuator

DN PN10, 16 PN25 PN40
Top flange
acc. to ISO
Dimensions, mm Torque, H*m Top flange
acc. to ISO
Dimensions, mm Torque H*m Top flange
acc. to ISO
Dimensions, mm Torque H*m
s b1 H t PN10 PN16 s b1 H t s b1 H t
50 F07 14 6×1 50 16 50 50 F07 14 6×1 50 16 70 F07 14 6×1 50 16 100
80 F07 16 6×1 50 18 65 80 F07 16 6×1 50 18 108 F07 16 6×1 50 18 225
100 F07 18 6×1 50 22 99 125 F07 18 6×1 50 22 171 F07 18 6×1 50 20 315
125 F10 22 8×1 60 24 156 180 F10 22 8×1 60 24 278 F10 26 8×1 60 28 480
150 F10 26 8×1 60 29 239 297 F10 26 8×1 60 29 432 F12 28 10×1 65 31 750
200 F12 28 10×1 65 31 467 585 F12 28 10×1 65 31 752 F12 32 10×1 65 35 1305
250 F12 32 10×1 65 35 753 952 F12 32 10×1 65 35 1242 F14 38 12×1 70 41 2100
300 F14 38 12×1 70 41 1076 1366 F14 38 12×1 70 41 1809 F14 42 12×1 70 45 3045
350 F14 40 12×1 70 43 1479 1895 F14 40 12×1 70 43 2532 F16 45 12×2 90 51 4350
400 F16 45 12×2 90 51 2330 2977 F16 45 12×2 90 51 4355 F16 50 12×2 90 56 7650
450 F16 50 12×2 90 58 2856 3678 F16 50 12×2 90 58 5379 F25 55 16×2 100 63 9300
500 F25 55 16×2 100 63 3708 4764 F25 55 16×2 100 63 7302 F25 65 16×2 100 73 12600
600 F25 65 16×2 100 73 5620 7588 F25 65 16×2 100 73 11216 F25 75 18×2 110 85 19800
700 F25 75 18×2 110 85 7660 10770 F25 75 18×2 110 85 16463 F30 85 22×2 120 95 29700
800 F30 85 22×2 120 97 10695 15100 F30 85 22×2 120 97 23105 F35 95 25×2 140 107 43650
900 F35 95 25×2 140 107 14364 20370 F35 95 25×2 140 107 31220 F35 105 25×2 140 119 58500
1000 F35 105 25×2 140 117 18729 26680 F35 105 25×2 140 117 40940 F40 125 28×2 160 141 76500
1200 F40 125 28×2 160 139 33180 46700 F40 125 28×2 160 139 65730 F48 135 32×2 180 153 125250
1400 F48 145 32×2 180 163 49660 70920 F48 145 32×2 180 163 100830
1600 F48 165 32×2 190 185 69750 100050

The data is approximate, for correct selection of electrical and pneumatic actuators it is recommended to consult with the representatives of PromArm company. Stem dimensions and shape are clarified upon request. For DN500 and higher, installation of multiturn actuators through worm gearbox is possible.

Specifications

Flow capacity of valves Kv, m3/h

DN 50 65 80 100 125 150 200 250 300 350 400 450
Kv 39 103 150 280 380 750 1390 2400 3780 5590 8000 9620
DN 500 600 700 800 900 1000 1200 1400 1600 1800 2000
Kv 13780 18910 26960 35210 43250 57240 81480 125631 196432 223785 281540

Reliability parameters of butterfly valves

DN 40-100 125,150 200-300 350,400 450-600 700-900 1000-2000
Mean life, cycles, not less than 5300 4300 3900 3300 2300 1900 1800
Warranty life, cycles, not less than 2000 1700 1600 1400 1000 800 650

Average life and warranty life of the sealing materials identified when testing valves with water according to GOST 2874-82

When operating valves for working mediums other than water, the reliability parameters are determined by the specific mediums, depending on its parameters.

Warranty

The warranty period is 18 months from the date of putting into operation, but not more than 24 months from the date of sale under condition of observance by the consumer of rules of transportation, installation and operation.

Conservation period - 3 years.

Average service life of body parts is not less than 30 years.

Average life removable parts and components – at least 5 years.

Sealing diagram in butterfly valves with triple offset

This figure shows the design of valves with triple offset: the disk axis of rotation and the seat axis in the valve create offset "a"; the disk axis of rotation is offset from the pipeline axis - this is offset "b"; the third offset "c" is formed due to the conical shape of the sealing surface. This design reduces friction in the points of contact between the disk and the seat, which increases reliability and durability of these valves, reduces the torque to control the valve.

Seat types

Metal-on-metal seat - stack seat of graphite and stainless steel rings. Image Metal-on-metal seat is all-metal. Image Уплотнение PTFE

Metal-on-metal seat - stack seat of graphite and stainless steel rings

Metal-on-metal seat is all-metal

PTFE seat

By default, valves series PA900 have one-sided tightness, i.e. the direction of the working medium must be unidirectional, in accordance with the arrow on the body. It is not allowed to use such valves to block the flow of the working medium in the opposite direction, this can lead to valve breakage. Although in exceptional cases, after agreement with the manufacturer, it is possible to use these valves for the return flow of the working medium with a pressure less than the nominal pressure. Upon request, it is possible to manufacture bidirectional valves series PA900 for any flow direction of the working medium.

This is achieved by using stronger parts of the valve design, such as the stem, bearings, gearbox, etc. Valves series PA900 with double-sided tightness have a seat designation = 8.

For example, PA928.500.16-02F is a "rotary disk flanged valve with triple offset (body – steel WCB, disk – steel WCB, seat – stainless steel + graphite, direction of working medium - bidirectional) with gearbox".

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PN
Body material:

Disk material:

Seat material:

Connection type:

Actuator type:

Total: 16660
Total: 16660

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