Graphite Flanged DN80 PN 40 Triple Eccentric Butterfly Valve
Article: 5040
Flanges: UNI EN 1092-2 PN 40, ASME 16.5
Face to face length: DIN 3202 F16 Design EN 12516, API 609
Installation: horizontal, vertical
FIELDS OF APPLICATION • Water • Industrial plants • Oil and
refineries• Steam • Gas
Epoxy paiting suitable for drinking water applications.
Triple eccentric butterfly valves are the most advanced solution
for zero leakage tightness whenever a process valve is required.
Thanks to the metal sealing, they grant a perfect tightness both in
and out, and the triple offset design is suitable for any
industrial application, including hazardous liquids, as well as
high temperatures. The triple eccentric disc eliminates any
friction between the seat and the sealing ring, facilitating
opening and closing procedures with reduced effort. Triple
eccentric butterfly valves can be flanged according to DIN or ANSI
standards. Suitable for many applications, easy to install, they
have a long lasting life and do not need any maintenance. Standard
execution with gear box, on demand with electric actuator.
A Butterfly valve is a quarter-turn rotary motion valve, that is used to stop,
regulate, and start the flow. Butterfly valves are a quick open
type. A 90° rotation of the handle can completely close or open the
valve. Normally, they are used in systems where a positive shut-off
is not required. In this article, you will learn about following
types of Valve.
- Wafer Type
- Lug Style Type
- Flanged Type
- Butt Welded Ends Types
- Zero offset
- Double Offset
- Triple Offset
Large Butterfly valves are usually equipped with gearbox type
actuator, where the handwheel is connected to the stem via a
gearbox. This will reduce the force but at the same time reduce the
speed of the operation. This type of valve should be installed in
the open position. If the valve is closed during installation, the
rubber seat will wedge against the valve disc and make it difficult
to open.
| Fingure: B5000F | | Size : 2"-36" | | Design Standard : API 609-83 | | Face to Face : ANSI B16.10 | | Flange Drilling : ANSI B16.5 | | Application | | characteristic is :due to use three eccentric configuration,
hermetic capability reliably, | | which ensure disc never touch sealing seat when it start, solve the
problem of | | hermetical seat burden unequally,prolong service life, and ensure
reliable hermetic | | advantage capability with of high temperature resistant,
wearable,antisepsis etc. |
| Specification | | Structre type:double flanged three eccenticity | | Design standard:API609-83 | | flange connection dimension:ANSI B 16.5 | | Flange drilling:ISO5211. | | Structure length:ANSI B 16.10-1992 | | Pressure test:API 598-82 |
Materials | Body | WCB,CF8M | | Dise | WCB,CF8M | | Stem | 416 Cr13Cr18Ni9Ti | | Seal ring | 316,Fluorine plastic | | Packing | Flesxible graphite,fluorine plastic |
Dimensions | API 150LB Series | | DN | L | H | H2 | D | D1 | D2 | M | n-φd1 | | 50 | 108 | 110 | 345 | 152 | 120.5 | 92 | M18 | 4-19 | | 80 | 114 | 125 | 380 | 190 | 152.5 | 127 | M18 | 4-19 | | 100 | 127 | 145 | 415 | 229 | 190.5 | 157 | M18 | 8-19 | | 125 | 140 | 165 | 455 | 254 | 216 | 186 | M20 | 8-22 | | 150 | 140 | 175 | 545 | 279 | 241.5 | 216 | M20 | 8-22 | | 200 | 150 | 210 | 645 | 343 | 298.5 | 270 | M20 | 8-22 | | 250 | 160 | 250 | 695 | 406 | 362 | 324 | M24 | 12-25 | | 300 | 178 | 285 | 830 | 483 | 432 | 381 | M24 | 12-25 | | 350 | 190 | 320 | 900 | 533 | 476 | 413 | M27 | 16-29 | | 400 | 216 | 355 | 980 | 597 | 540 | 470 | M27 | 16-29 | | 450 | 222 | 380 | 1030 | 635 | 578 | 533 | M30 | 16-32 | | 500 | 229 | 415 | 1110 | 699 | 635 | 584 | M30 | 20-32 | | 600 | 267 | 475 | 1305 | 813 | 749.5 | 692 | M33 | 20-35 | | 750 | 292 | 580 | 1525 | 985 | 914 | 857 | M33 | 28-35 | | 800 | 318 | 630 | 1585 | 1060 | 978 | 914 | M39 | 28-41 | | 900 | 330 | 680 | 1765 | 1168 | 1085 | 1022 | M39 | 32-41 |
| API 300LB Series | | DN | L | H | H2 | D | D1 | D2 | M | n-φd1 | | 50 | 108 | 110 | 345 | 165 | 127 | 92 | M18 | 8-19 | | 80 | 114 | 125 | 380 | 210 | 168 | 127 | M20 | 8-22 | | 100 | 127 | 145 | 415 | 254 | 200 | 157 | M20 | 8-22 | | 125 | 140 | 165 | 455 | 279 | 235 | 186 | M20 | 8-22 | | 150 | 140 | 175 | 545 | 318 | 270 | 216 | M20 | 12-22 | | 200 | 150 | 210 | 645 | 381 | 330 | 270 | M24 | 12-26 | | 250 | 160 | 250 | 695 | 445 | 387 | 324 | M27 | 16-29 | | 300 | 178 | 285 | 830 | 521 | 451 | 381 | M30 | 16-32 | | 350 | 190 | 320 | 900 | 584 | 514 | 413 | M30 | 20-32 | | 400 | 216 | 355 | 980 | 648 | 571 | 470 | M33 | 20-35 | | 450 | 222 | 380 | 1030 | 711 | 628 | 533 | M33 | 24-35 | | 500 | 229 | 415 | 1110 | 775 | 686 | 584 | M33 | 24-35 | | 600 | 267 | 475 | 1305 | 914 | 813 | 692 | M39 | 24-41 | | 750 | 292 | 580 | 1525 | 1092 | 997 | 857 | M45 | 28-49 | | 900 | 330 | 680 | 1765 | 1270 | 1168 | 1022 | M50 | 32-53 |
|
Types of Butterfly Valves Based on Body Construction
Based on the type of ends of the body butterfly valves are
available in following types.
Both Flanged Ends
Wafer Type Ends
Lug Type Ends
Butt Welded Types Ends
Water Type
The wafer body is placed between pipe flanges, and the flange bolts
surround the valve body. A wafer type butterfly valve is easy to
installed but it cannot be used as an isolation valve.
Seat Types
Butterfly valves can be metal-to-metal seated, soft seated, or with
a fully lined body and disc. The first image is of a soft seated
fully lined body and disc valve. Second, is a soft seat with metal
disk and the third is metal to metal seat type valve.
Triple Offset Butterfly Valve
In Triple Offset design the third offset created by the geometry
design of the seating surface.
The seat is machined into an offset conical profile resulting in a
right-angled cone. You can see this in the
third image with small enlargement of seating angle.
This ensures frictionless stroking throughout it's operating cycle.
Contact is only made at the final point of
closure with the 90° angle acting as a mechanical stop; the Metal
seated valve uses triple offset design.
