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SUPPORTED MEDIA Glycol 100% Water to 200’C Gases -40’C - +80’C Steam 600’C Condensate Ice water -35’C ’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 valve 140 kg 400 mm 285 mm > 800 Nm Bellow valve 170 kg 600 mm 800 mm Gate valve 105 kg 230 mm 670 mm Butterfly 60 kg 71 mm 550 mm 750 Nm For valves and bellow valves the need to use expensive multiturns drivers

Centric butterfly valves PN : Soft seal NBR; EPDM, PTFE; Silikon; Viton Or without seal – leakage about 1% kv for hard seated version Single eccentric butterfly valves : PN 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 : PN 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.DescriptionCarbon Cast AlloyStainless steel 1BodyWCBWC6CF8CF8M 2RingWCB DiskWCB Seat ShaftA A A182 F304 A182 F316 6Gland inserts graphite Aplication :Oil ; water ; steamaggressive media Temperature o C o C The construction scheme Sizes:DN (in depending on PN) Pressure:PN 0, MPa

Forged or cast This solution eliminates the risk of leakage between the elements of the body The applicability of a variety of materials : - carbon steelWCB+ 425 o C - stainless steel AISI o C AISI o C Connections type : 1.flanged 2.type LUG 3.interflanged type Wafer 4.welded Body

Forged or casted The 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 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… Nm - adjustable - close - open ( shut-off ) - AUMA -REMOTE CONTROL -CLORIUS -REGADA

Pneumatic drive - torque to Nm - 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.