Wafer butterfly valve

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BUTTERFLY VALVE

Brand:VALVE
Type:
Material:
Connection:
Pressure:
Temperature:
medium
Uses:
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Introduction>>Parameters>>Works>>



DESCRIPRION:

Industrial butterfly valve of very high quality. EN 10204 3.1. Certified

Two-piecestem resulting in low Kv-value and less turbulence.

ISO 5211 mounting flangesenable direct mounting of electric actuators.

Seat vulcanized to a phenolic back-up ring making the valve ideal for vacuum applications.

Multi-standard alignment holes

DN40-DN300, PN10/16/ANSI150, BS10 TABLE D/E

DN350-DN600, PN10 or ANSI150, BS10 TABLE D/E.

Unique plain bearing in the discwhich ensures low torque, low friction, long service life and 100% tightness (DN40 - DN300).

Approvals- the butterfly valves are CE/PED and ATEX approved.

Strong handlein steel or stainless steel.

3-piece plain bearingreduces friction and prolongs service life.

Special designed seatwhich reduces torque and prolongs service life.

GENERAL:

Dimensions / pressure: DN40 - DN300 = PN16
DN350 - DN600 = PN10

Material body: Ductile iron

Material disc: AISI 316, Nickle plated ductile iron

Material seat: NBR, EPDM-H, FPM or PTFE

Surface: Polyester, RAL9006, 100μ

Face-to-face: EN558-1

Operating: Handle, gear box or actuator

(Pneumatic, electric or hydraulic)

Counter flange: DN40-DN300, PN10/16/ANSI150

BS10 TABLE D/E, JIS 10K, 16K

DN350 -DN600 PN10 or ANSI150 BS10 TABLE D/E





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Butterfly Valve

U TYPE BUTTERFLY VALVE

Full lined butterfly valve

  • MATERIALS
  • APPLICABLE FLANGE
  • VALVE DATA

MATERIALS:

No. Description Material
1 Stem Stainless steel - AISI 420
2 Preventing plate Stainless steel - AISI 316
3 Screw Stainless steel - AISI 316
4 Screw Stainless steel - AISI 410
5 V-ring Same as seat
6 Bushings PTFE / Graphite
7 Body Ductile iron
8 Seat Choose from the above
9 Disc Choose from the above
10 Nut Stainless steel - AISI 410
11 O-ring Same as seat
12 Plug Galvanized steel
13 Bolts Stainless steel - AISI 316
14 Washers Stainless steel - AISI 316
15 Cover Stainless steel - AISI 316

APPLICABLE FLANGE:

n-d1 PN6
ANSI 100
JIS 6K
n-d2 PN10
ANSI 125
JIS 10K
n-d3 PN16
ANSI 150
JIS 16K
NPS DN B C D E F G n-ΦH L M1 n-d1 M2 n-d2 M3 n-d3
2“ 50 126 14.5 75 9 50 65 4-φ7 42.4 110 4-φ14 125 4-φ19 125 4-φ19
2.5“ 65 134 14.5 81 11 50 65 4-φ7 45.4 130 4-φ14 145 4-φ19 145 4-φ19
3“ 80 157 14.5 95 11 50 65 4-φ7 45.4 150 4-φ19 160 8-φ19 160 8-φ19
4“ 100 167 14.5 113 11 50 65 4-φ7 51.4 170 4-φ19 180 8-φ19 180 8-φ19
5“ 125 180 20.5 128 14 70 90 4-φ9 55.4 200 8-φ19 210 8-φ19 210 8-φ19
6“ 150 203 20.5 141 14 70 90 4-φ9 55.4 225 8-φ19 240 8-φ23 240 8-φ23
8“ 200 228 20.5 171 17 70 90 4-φ9 59.4 280 8-φ19 295 8-φ23 295 12-φ23
10“ 250 266 25.5 211 22 102 125 4-φ11 67.4 335 12-φ19 350 12-φ23 355 12-φ28
12“ 300 291 27.5 241 27 102 125 4-φ11 77.4 395 12-φ23 400 12-φ23 410 12-φ28
14“ 350 332 44 268 27 140 175 4-φ18 76.8 445 12-φ23 460 16-φ23 470 16-φ28
16“ 400 363 44 312 27 140 175 4-φ18 100.6 495 16-φ23 515 16-φ28 525 16-φ31
18“ 450 397 44 343 32 165 210 4-φ22 113.3 550 16-φ23 565 20-φ28 585 20-φ31
20“ 500 425 54 390 32 165 210 4-φ22 126 600 20-φ23 620 20-φ28 650 20-φ34
24“ 600 498 54 450 36 254 300 8-φ18 153.4 705 20-φ26 725 20-φ31 770 20-φ37

VALVE DATA:

DIM Kv-value rated flow coefficient (m³/h at 1 bar ΔP)
[mm] Moment[Nm] 10° 20° 30° 40° 50° 60° 70° 80° 90°
DN40 9 <1 <1 4 12 17 32 45 53 62
DN50 10 <1 <1 5 14 29 47 71 98 107
DN65 13 1 2 11 27 50 77 122 171 213
DN80 19 3 6 28 54 91 140 213 301 404
DN100 28 5 14 57 108 175 262 404 594 799
DN125 47 6 27 84 156 248 385 624 954 1239
DN150 67 7 51 129 224 363 572 977 1535 1929
DN200 131 22 114 229 401 639 1018 1755 2280 3484
DN250 224 33 171 334 634 970 1530 2650 4403 5753
DN300 321 49 250 490 925 1416 2231 3865 6641 8828
DN350 616 118 301 631 1131 1918 3018 4963 8884 10308
DN400 875 153 393 824 1478 2506 4024 6482 11603 13464
DN450 1197 195 498 1043 1871 3170 5093 8210 14686 17041
DN500 1590 240 615 1288 2309 3913 6287 10128 18130 21038
DN600 2611 345 885 1853 3326 5635 9054 14584 26109 30295

Kv = The amount of m³ per hour of 20º C water at 1 bar pressure drop. Cv = The number of US gallons per minute of 60º F water at 1 psi pressure drop.

Cv = 1.167 Kv. From DN350 to DN600 valves, if the normal pressure is 16 bar, Kv the torque value is the same as the values for the wafer and lug models.

The charted values are for water, seawater, lubricating types of hydrocarbons. Temperatures from 0º C to 80º C. Valves are activated at least once a month. For other liquid applications and lubricating gasses, multiply values by 1.1. For non-lubricating and dry media, multiply values by 1.2. When sizing actuators, multiply the charted torque by 1.25.

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