Welcome SUPPORTED MEDIA Gases -40’C - +80’C Steam to300’C Water to 200’C Condensate Glycol 100% Compressed air Ice water -35’C - +200’C Steam 600’C 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 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 Triple eccentric - flowchart 1 1 – eccentric moving the shaft relative to the axis of the sealing surface 2 a 3 - eccentric – the conical shaped sealing surface with the cone axis shifted by the „α „ angle 2 - eccentric – axis displacement of the shaft relative to the axis of the throttle Advantages of triple eccentric design 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 The construction scheme 6 2 3 5 4 1 No. Description Carbon Cast Alloy 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 Aplication : Temperature oC Stainless steel graphite Oil ; water ; steam -29..+425 -29.+530 aggressive media -196...+600oC Sizes: DN 80...3000 (in depending on PN) Pressure: PN 0,6...10 MPa Body 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. flanged 2. type LUG 3. interflanged type Wafer 4. welded Disk 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 Shaft 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 seal - Gland seal graphite inserts - gland seal mounted on pins and needles with nuts Mounting the drive : - Basis with drilling wg ISO 5211 - possibility of making unusual drilling 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 Drive 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 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 : The National Stadium Warszawa District Heating Katowice – DN 900, DN 700 PGE Arena Baltic - Gdańsk National Forum of Music Wrocław Airport Terminal - Gdańsk Referencje BROEN Butterfly type AKW Butterfly type AKFL Thank you for your attention.