Post on 30-Nov-2018
Double eccentric valves - API 609 Category B
2
Highlights
Features
The high performance RK & RT series butterfl y valves are designed to
provide bidirectional seal as standard for #150 and #300 classes with
preferential fl ow direction.
> Double eccentric disc
> Monoblock body
> Variety of materials
> Fire-safe model available
> Body
Wafer, Lug and Flanged confi gurations are
designed and casted in monoblock body to
ensure maximum safety and reliability.
Extended neck that eases access to the
stem packing system by a housing for the
packing gland. The top fl ange allows direct
coupling of actuators without the need of
supports and eliminating the possibility of
gaps between them.
Semi-lug casted in the outer diameter of the
Wafer type end, facilitates the installation and
alignment between fl anges.
RK & RT Series feature a travel stop fused to
the body, so that, after precise machining,
it guarantees perfect closure of the disc and
alignment with the seat.
> Disc
The disc provides low head loss in the fully
open position and low drive torque as a
function of its eccentricity.
The fi rst eccentric axis is characterized by
the transverse displacement of the center
of rotation of the disc with the center of the
body. Its confi guration allows fl uid passage
through a small opening angle of the disc.
The disc edge is polished around its
perimeter, ensuring a better seating and total
sealing with the seat.
> Upper and lower stem
The upper and lower stems are fi xed to
the disc by torque plugs to ensure the
performance and safety of the product.
The dimensions of the upper end of the stem
allow installation in actuators according to
DIN 3337.
> Seat
RK & RT designs allow a perfect seat-to-
disc contact in order to minimize the eff ects
of the friction and, together with the double
eccentricity of the disc, contribute to the
reduction of the drive torque and premature
wear.
For both metallic and soft seats, a metal ring
is used to fi x them to the body. Thus, it is
necessary to use gaskets between the body
and the pipe fl ange.
Variety of materials and versatile design
allow the RK series to operate in several
applications and needs.
> Bushing
Provides the perfect alignment between the
disc and the seat, reducing wear on critical
components and improving valve effi ciency
in operation.
> Gasket
Standardized element which facilitates its
interchangeability, improving the effi ciency of
the seal assembly.
Butterfl y Valves RK & RT Series Long body
3
> Packing gland
Assembled in the upside-down position, it allows easy adjustment
and uniform compression of the packing. It does not interfere with
actuator assembly directly on the valve top fl ange and provides the
blowout-proof feature to the upper stem.
> Disc adjustment
Equipped with a fi ne adjustment of the disc by a screw and a locating
nut, it allows an accurate alignment of the disc providing perfect
seating and consequently better sealing effi ciency.
Construction Standard
API 609 Category B
End
Wafer / Lug / Flanged
Long and short body
Face to face
API 609 Category B
ISO 5752 Table 1 Col. 20
Dimensions
RK: 2” to 24”
RT: 26” to 54” (others upon request)
Pressure limits
150# / 300# (others upon request)
Seat
PTFE / RTFE / Inter-hard / Inter-steam /
Stansit / AiSi 316 / Incoloy
Materials
Carbon steel ASTM A-216 WCB
Stainless steel A-351 CF8M / CF8
PTFE / RTFE / Inter-hard / Inter-steam
Stainless steel ASTM A-564 Tp. 630 (17-
4PH)
Chrome plated Stainless steel ASTM A-351
CF8M
Chrome plated Stainless steel ASTM A-276
S316
Graphite / PTFE
Materials
Seats
RK Series
Body Disc Seat Stem
Carbon steel ASTM A-216 Gr. WCB Stainless steel ASTM A-351 Gr. CF8 PTFE ASTM A-564 Tp.630
Stainless steel ASTM A-351 Gr.CF8M Stainless steel ASTM A-351 Gr.CF8M RTFE ASTM A-276 Tp.410
- - Inter-steam -
- - Inter-hard -
- - Stansit -
- - AiSi 316 -
- - Incoloy -
RT Series
Body Disc Seat Stem
Stainless steel ASTM A-351 Gr.CF8M Stainless steel ASTM A-351 Gr. CF8 PTFE Stainless steel ASTM A-246 Tp. 410
Stainless steel ASTM A-351 Gr.CF8 Stainless steel ASTM A-351 Gr.CF8M RTFEStainless steel ASTM A-564 Tp. 630
(17-4PH)
Carbon steel ASTM A-216 Gr. WCBDuctile iron 65-45-12
(coated with Hard chrome on edges)Inter-steam -
Ductile iron 65-45-12 Stansit -
Material Description
Polytetrafl uoroethylene (PTFE) / Tefl on Used in a wide range of applications
Inter-steam (PTFE + Filler) Developed by IMI Interativa for critical temperature and pressure applications
Stansit (PTFE + Filler) Developed by IMI Interativa for critical temperature and pressure applications
Inter-hard High molecular weight polyethylene for abrasive applications
Double eccentric valves - API 609 Category B
4
Bill of materials: RT Series
Bill of materials: RK Series
ITEM DESCRIPTION
01 Body: Wafer / Lug / Flanged
02 Gland retainer screws
03 Disc
04 Upper stem
05 Lower stem
06 Gland retainer
07 Torque plugs
08 Retaining bearing
09 Upper spacer
10 Packing
11 Bearing
12 Stop bolt
13 Stop nut
14 Lower spacer
15 Thrust bearing
16 Seat ring
17 Seat
18 Steel cable
19 Seat retainer screws
20 Seat retainer ring
21 Body O’ring
22 Locating nut
23 Bottom cover kit
24 Bottom cover screws
25 Bottom cover washer
13
14
16
04
02
15
22
2303 12
1718 19
2021
01
02
05
06
08
09
10
11
ITEM DESCRIPTION
01 Body: Wafer / Lug / Flanged
02 Bushing
03 Disc
04 Upper stem
05 Lower stem
06 Locating nut
08 Locating nut screws
09 Bottom cover gasket
10 Bottom cover
11 Bottom cover screws
12 Torque plugs
13 Gland retainer
14 Gland ring
15 Gland stud
16 Packing
17 Seat
18 Seat ring
19 Body gasket
20 Seat retainer ring
21 Seat retainer screws
22 Packing gland washer
23 Packing gland nut
02
06
04
07
08
08
10
1101
03 17 16 18 21 20 19
12
11
10
08
05
14
15
23
24
25
22
07
13
09
5
Dimensional table: RK SeriesValues in millimeters (mm)
RK
Dim
en
sio
n -
Cla
ss #
150
Dimension 2” 2½” 3” 4” 5” 6” 8” 10” 12” 14” 16” 18” 20” 24”
A
Wafer / Lug 44 48 48 54 57 57 64 71 81 92 102 114 127 154
Short fl ange 114 114 114 127 140 140 152 165 178 190 216 222 229 267
Long fl ange 203 203 203 229 267 267 192 330 356 381 406 432 457 508
B 155 155 165 190 195 220 270 300 330 356 393 440 480 540
C 259 266 279 326 376 401 480 540 605 662 736 810 880 1018
ØD 55 60 76 100 116 142 193 240 292 321 366 420 460 563
E 16 16 16 21 21 21 23 28 28 28 38 38 38 54
G F07 F07 F07 F07/10 F07/10 F10/12 F10/12 F12/14 F12/14 F14/16 F14/16 F16 F16 F16/25
H Q11 Q11 Q11 Q17 Q17 Q17 Q22 Q27 Q27 Q27 Q36 Q36 Q36 Q46
ØI 9 9 9 9&11 9&11 11&13 11&13 13&17 13&17 17&21 17&21 21 21 21&17
ANSI B16.5 Assembly between fl anges - #150
Re
fere
nc
e
va
lue
s
ØL 120,7 139,7 152,4 190,5 215,9 241,3 298,5 362 431,8 478,3 539,8 577,9 635 749,3
ØM 3/4" 3/4" 3/4" 3/4" 7/8" 7/8" 7/8" 1" 1" 1.1/8" 1.1/8" 1.1/4" 1.1/4" 1.3/8"
N Holes No. 4 4 4 8 8 8 8 12 12 12 16 16 20 20
CL - CorpoCL - Haste
B
C
L - Círculo de FuraçãoØ
ØM - Furo
I - Furo
G - Círculo de Furação
H
Ø
Ø
ØD
E
A
Bolt circle
Bolt circle
Hole
Hole
StemBody
Double eccentric valves - API 609 Category B
6
RK
End 2” 2½” 3” 4” 5” 6” 8” 10” 12” 14” 16” 18” 20” 24”
Wafer 4 5 6 11 14 17 24 42 67 77 108 150 200 280
RT
End 26” 28” 30” 32” 36” 40” 42” 48” 54”
Wafer 250 276 345 355 573 732 828 1176 1395
B
C
ØD
ØG
J - nº de FurosN - Ø do FuroO - Ø do Círculo de Furação
DN-36" ~ 54"
H
J - nº de FurosN - Ø do FuroO - Ø do Círculo de Furação
F
Dimensional table: RT Series
Weights
Values in millimeters (mm), except G line (in inches)
Approx. values in Kilograms (Kg.)
RT
Dim
en
sio
ns
DN 26” 28” 30” 32” 36” 40” 42” 48” 54”
A 167 167 167 190 200 218 251 281 294
B 554 578 603 629 679 736 771 888 1012
C 1066 1143 1181 1232 1341 1452 1516 1736 2004
D 765 829 880 937 1045 1159 1216 1380 1514
F 55 55 55 55 140 140 140 152 152
G 3.5/8” 4” 4.1/4” 4.1/4” 4.1/4”
H 45 45 45 55
J 4 4 4 4 8 8 8 8 8
N 22 22 22 18 18 18 22 22 22
O 165 165 165 254 254 254 298 298 298
ISO F16 F16 F16 F25 F25 F25 F30 F30 F30
Number of holes
Number of holes
DN-26” ~ 32”
Hole
Hole
Bolt circle
Bolt circle
7
TRIMSOFT seat
Body Disc Seat Stem Packing
614 Carbon steel WCB Stainless steel CF8M PTFE Stainless steel 17-4PH PTFE
616 Carbon steel WCB Stainless steel CF8M Inter-Hard Stainless steel 17-4PH PTFE
617 Carbon steel WCB Stainless steel CF8M Stansit Stainless steel 17-4PH PTFE
618 Carbon steel WCB Stainless steel CF8M Inter-Steam Stainless steel 17-4PH PTFE
634 Stainless steel CF8M Stainless steel CF8M PTFE Stainless steel 17-4PH PTFE
636 Stainless steel CF8M Stainless steel CF8M Inter-Hard Stainless steel 17-4PH PTFE
637 Stainless steel CF8M Stainless steel CF8M Stansit Stainless steel 17-4PH PTFE
638 Stainless steel CF8M Stainless steel CF8M Inter-Steam Stainless steel 17-4PH PTFE
705 Bronze/ AL B148 Bronze/ AL B148 RPTFE Monel K500 PTFE
TRIMMetal seat
Body Disc Seat Stem Packing
814 Carbon steel WCBChrome Stainless steel
CF8MChrome Stainless steel 316 Stainless steel 17-4PH Graphite / PTFE
834Stainless steel
CF8M
Chrome Stainless steel
CF8MChrome Stainless steel 316 Stainless steel 17-4PH Graphite / PTFE
816 Carbon steel WCBChrome Stainless steel
CF8MIncoloy Stainless steel 17-4PH Graphite / PTFE
836Stainless steel
CF8M
Chrome Stainless steel
CF8MIncoloy Stainless steel 17-4PH Graphite / PTFE
500 Bronze/ AL B148 Bronze/ AL B148 Bronze Monel K500 Graphite / PTFE
Opening
Angle
RK Series
2” 2½” 3” 4” 5” 6” 8” 10” 12” 14” 16” 18” 20” 24”
10º 6 6 8 16 30 50 83 144 208 257 308 373 463 650
20º 10 10 12 23 44 70 117 202 304 360 432 548 680 991
30º 19 19 24 44 83 130 251 454 678 747 803 1121 1390 2076
40º 34 34 43 80 149 230 437 754 1051 1186 1422 1863 2315 3803
50º 51 53 67 130 242 370 695 1185 1625 1909 2289 2990 4010 6060
60º 78 80 100 194 366 550 1052 1821 2766 3121 3614 4735 6175 9091
70º 105 111 139 269 504 760 1496 2611 3838 4416 5251 6728 8795 13301
80º 134 148 186 360 673 1010 2001 3540 5325 6225 7530 9845 12655 18466
90º
(#150)163 175 220 425 795 1195 2440 4540 6915 8300 10040 12460 15430 21660
90º
(#300)160 170 215 413 785 1140 2300 4333 6600 7920 9580 11890 14820 20665
RK Series usual TRIMs
Flow coeffi cient x Opening angle - RK Series
Inter-Lok valve features a wide range of materials and performance guarantee for a wide range of applications.
List of usual TRIMS and valve specifi cations / conditions:
Approx. values considering specifi c weight of water 1.0 at 20ºC
Double eccentric valves - API 609 Category B
8
Seat leakage, tolerance and specifi cations (ANSI/FCI 70.2)
Sealing class Max. Leakage Test fl uid Pressure and Temperature
Class IV 0,01% of rated valve capacity Air or waterService pressure or 50 psid.
(3-4 bar diff erential)
Class V5 x 10-4 ml/min/psig/inch. of diameter
(5 x 10-12 m³/sec/bar diff erential/mm. of diameter)Water
Service pressure at 50º to 125º F
(10º to 52º C)
Nominal diameter Bubbles per minute ml. per minute
Classe VI
2" 3 0,45
Air or
Nitrogen
Service pressure or 50 psig
(3-4 bar diff erential)
2,5" 4 0,60
3" 6 0,90
4" 11 1,70
6" 27 4,00
8" 45 6,75
Pressure Class (ANSI B 16.34)*Velocy limits for ON-OFF Services
Range (inch) Pressure Pressure (bar) at 38º C
2" - 24" 150# 19,6
2" - 24" 300# 51,1
Fluids 9m/s
Gases 54m/s
Opening
Angle
RT Series
26” 28” 30” 32” 36” 40” 42” 48” 54”
25º 1902 2156 2819 2938 4356 4948 5112 6825 8327
30º 2661 3014 3986 4154 5936 6925 7326 9612 11727
40º 4729 5358 7080 7378 9790 11862 12793 16785 20478
50º 7760 8790 11328 11805 15572 19307 20830 27331 33344
60º 12305 13939 18090 18851 25053 30636 32803 43039 52508
70º 20325 23023 28844 30058 40086 50406 54680 70485 85992
75º 30302 34325 35924 37436 49877 62198 69627 89635 109355
80º 34205 38674 43003 44813 59667 73990 84574 108786 132719
90º 36955 41860 52443 54650 77089 91400 102861 132794 162000
Approx. values considering specifi c weight of water 1.0 at 20ºC
Flow coeffi cient x Opening angle - RT Series
*For A-216 WCB body only
9
Valve Specifi cation - Part Number Confi guration
Constructions
Example 20-111-61400 Interlok Valve 150# 20"
Body Carbon steel WCB
Disc Stainless steel CF8M
Seat PTFE
Stem 17-4PH
Gaskets PTFE
PressureClass
EndConstruction
ChosenTRIM
SpecialVariation
Drillingcircumference
1 = 150#2 = 300#
(Standard 00)
1 = Wafer2 = Lug3 = Flanged
1 = Wafer2 = Lug3 = Flanged
Diameter
2 0 - 1 1 1 - 6 1 4 0 0
WaferLug Flanged
IMI Critical Engineering
Lakeside, Solihull Parkway
Birmingham Business Park
Birmingham B37 7XZ
United Kingdom
Tel: +44 (0)121 717 3700
Fax: +44 (0)121 717 3701
www.imi-critical.com
IMI Interativa
Av. Garabed Gananian, 386
Distrito Industrial, 18087-340
Sorocaba, SP - Brasil
Tel: +55 15 3235 9500
Fax: +55 15 3235 9501
IMI Orton
Via dei Bazachi, 50
29121 - Piacenza
Emilia-Romagna - Itália
Tel: +39 0523 762 511
Fax: +39 0523 762 512
IMI Trufl o Italy
Via Grilli, 2/A
29010 San Nicolò a Trebbia
Rottofreno, Piacenza, Itália
Tel: +39 0523 766111
Fax: +39 0523 766112
Contact
Versão 0317