Welcome

SUPPORTED MEDIA

Glycol 100%

Water to 200’C

Gases

-40’C - +80’C

Steam 600’C

Condensate

Ice water

-35’C - +200’C

Steam to300’C

Compressed air

PN16 – PN100

CL150 - CL900

Why butterflies?

Comparison of butterflies DN 200; PN25; with other fittings:

Weight: Length: Height : Moment:

Ball valve140 kg

400 mm 285 mm> 800 Nm

Bellow valve170 kg

600 mm 800 mm

Gate valve105 kg

230 mm 670 mm

Butterfly60 kg

71 mm 550 mm750 Nm

For valves and bellow valves the need to use expensive multiturns drivers

Centric butterfly valves PN6....16:

Soft seal NBR; EPDM, PTFE; Silikon; Viton

Or without seal – leakage about 1% kv for hard seated version

Single eccentric butterfly valves : PN6...25

Only soft seal available NBR; EPDM; PTFE; Viton

Double eccentric butterfly valves : PN6...40(50)

Soft seal NBR; EPDM; PTFE; Viton

Seal metal-metal

Triple eccentric butterfly valves : PN6...100

Only hard seal, metal/metal. There is no trafic friction during opening and

Closing of the butterfly valve. The disc loses contact with the seat immediately after the start of opening. This construction minimizes the torque valve, guarantees 100% tightness and long life of the seal.

Butterfly valves BROEN „AK”

Supplement of BROEN’s offer for cases where are no possibilities to use ball valves Ranges of diameters to DN3000 Standard of production:

• AKW – between flange• AKFL – with flanged • AKBW – with welded ends

Different versions of pressure:• PN25 – to DN 600 in stock• PN16, PN40, PN63 – for special order

Constructions characteristics

• Triple eccentric disc• Seal: lamellar metal/metal• Self-centering seat• Single body casted• 100% tightness to 425’C• Usage:

– energetics– heating– industry

3 - eccentric – the conical shaped sealing surface with the cone axis shifted by the „α „ angle

1 – eccentric moving the shaft relative to the axis of the sealing surface

Triple eccentric - flowchart

2 - eccentric – axis displacement of the shaft relative to the axis of the throttle

2

1

1. No friction between the sealing elements

2. Low torque values

3. Long life

4. The tightness obtained by the torque of the drive

5. The tightness of the variable temperature factor

6. Perfect flow characteristics

Advantages of triple eccentric design

No. Description Carbon

Cast

Alloy Stainless steel

1 Body WCB WC6 CF8 CF8M

2 Ring WCB 304 304 316

3 Disk WCB 304 304 316

4 Seat 420 420 304 316

5 Shaft A276

420

A276

420

A182

F304

A182

F316

6 Gland inserts

graphite

Aplication : Oil ; water ; steam aggressive media

Temperature oC -29..+425 -29.+530 -196...+600oC

The construction scheme

Sizes: DN 80...3000 (in depending on PN)Pressure: PN 0,6...10 MPa

6

2

3

5

4

1

Forged or cast This solution eliminates the risk of leakage between the elements of the body

The applicability of a variety of materials :- carbon steel WCB + 425oC- stainless steel AISI 304 + 600oC

AISI 316 + 600oC

Connections type :1.flanged2.type LUG3.interflanged type Wafer4.welded

Body

Forged or castedThe sealing surface hardened The applicability of various materials:- carbon steel- stainless steel

Rigidly mounted on a single shaft with by means of pins The two-piece shaft option.

Shaft with keyway for diameters up to DN250 possible square

Disk

One piece design of stainless steel: -AISI 420 standard-AISI 304-AISI 316-other materials on request

- double bearing- maintenance-free bearings- self-lubricating standard bronze alloys - optional stainless steel

Shaft

Mounting the drive :

- Basis with drilling wg ISO 5211

- possibility of making unusual drilling

Shaft seal

- Gland seal graphite inserts- gland seal mounted on pins and needles with nuts

Lamella sealing

1.Constructed of several layers of stainless steel and graphite

2.The minimum amount of the graphite extends the life

3.Built in the body or on disk

4.Construction of floating - adapts to disk

5.The tightness achieved by closing torque

6.Insensitive to changes in temperature and pressure

Standard worm gear with hand wheel

Option:

Electric drive- Close and open- adjustable

Pneumatic drive -unilateral action- two-sided action- with wheel for manual action- adjustable i close and open

Hydraulic drive

Drive

Electric drives

- torque 32…600.000Nm- adjustable- close - open ( shut-off )

- AUMA-REMOTE CONTROL-CLORIUS-REGADA

Pneumatic drive

- torque to 15.000Nm- adjustable- close open

-REMOTE CONTROL-CLORIUS

Our projects :

PGE Arena Baltic - GdańskThe National Stadium - Warszawa

Airport Terminal - Gdańsk

District Heating Katowice –

DN 900, DN 700

National Forum of Music Wrocław

Referencje BROEN

Butterfly type AKW

Butterfly type AKFL

Thank you for your attention.