BUTTERFLY VALVE TYPE 451 WTH HANDWHEEL 0 / PN, and Body: EN-GJS--15 (spheroidal graphite cast iron d.c.i.). Valves inside lined with enamel, securing long undisturbed service and excellent flow pattern Disc: Double offset on shaft, 0 % enamelled. Absolutely tight in both flow directions. Face to face s acc. SO 5752 series 14. Suitable for water, gas and other media.
TEC FELD OF APPLCATON DESGN FEATURES DÜKER Butterfly Valves with are installed in lines for potable and waste water ( for waste water please let us have the analysis ), as well as for compressed air and all kinds of gas complying with DVGW-worksheet G 2. Please inform in case other media should be transported. Working pressure and differential pressure must correspond. The disc is mounted double offset on shaft and designed for optimum, unobstructed flow pattern for both flow directions. The exchange of peripheral sealing ring is possible without removing the disc. An open / close indication device is placed on the gear cover. Flanges are acc. to SO 31 PN /PN /PN. ASA-and BS-flanges available on request. up to pressure PN Pressure test Water acc. 3, part. 3 Shell 15 24 40 Seat Pressure test Gas acc. 3, part. g, PG 1, PG 2 or PG 3 The test is certified with certificate acc. EN 204 / 3.1 B. MATERAL Body and disc are EN-GJS--15, spheroidal graphite cast iron. Flanges have supporting stands. The sealing face outside shaft entrance is completely enamelled. The resilient sealing ring is made of EPDM; for the shaft sealing NBR is applied, bushes are maintainance-free. The body is enamelled impact-resistant. t1 t2 X1 d D h2 A A h1 L B
HNOLOGY 0 ( with d. c. i. retaining ring ) 0 0 1 1 0 0 0 pressure PN / / / / Face to face L 190 190 2 2 0 0 0 290 290 290 3 3 3 330 330 Outside diameter of flange D 220 235 0 285 340 3 395 395 4 455 4 485 505 520 555 5 580 620 615 670 730 780 840 845 Width of stand B 0 0 180 180 180 2 2 2 0 h1 1 1 147 155 175 185 205 205 2 245 2 2 280 285 295 312 3 340 3 370 395 4 4 h2 570 570 t1 8 8 122 122 177 177 202 202 248 248 248 263 263 263 308 308 308 328 328 328 370 370 433 445 445 509 t2 188 188 215 215 231 231 6 6 302 317 317 317 382 4 435 4 4 555 535 575 6 x1 0 0 0 0 0 0 0 0 Gear type SK A A A A A A A A A A A A V V V GZ Diameter of g 0 0 0 0 0 0 0 0 0 Weight approx. kg 30 31 45 50 57 58 72 74 90 90 0 120 120 1 151 151 0 185 203 2 273 275 320 320 420 463 Volume without m 3 0,028 0,028 0,037 0,037 0,044 0,045 0,049 0,058 0,077 0,077 0,090 0,6 0,6 0,8 0,142 0,142 0,145 0,170 0,178 0,188 0, 0,236 0,239 0,246 0,346 0,331 0,453 0,585 ( with stainless steel retaining ring ) 900 900 00 00 00 pressure PN max. 20 Face to face L 430 430 430 5 5 630 630 Outside diameter of flange D 895 9 9 15 85 1115 11 1 15 1320 1455 1485 Width of stand B h1 4 485 5 515 545 5 568 620 630 0 730 750 h2 570 675 t1 549 549 549 594 594 594 634 634 699 699 699 828 828 t2 6 6 6 7 7 7 750 740 815 805 805 903 903 x1 5 5 5 5 Gear type SK SK V* SK V GZ SK V GZ SK V GZ SK V GZ SK V GZ SK V GZ GS GZ SK V GZ GS 0 GZ GS 0 GZ GS 0 GZ GS 0 GZ Diameter of g Weight approx. kg 0 6 750 902 917 0 1263 1490 1 2070 2140 Volume without m 3 0,598 0,3 0,673 0,857 0,857 1,000 1,020 0,972 1,249 1,112 1, 1,712 1,735
26 27 1 2 SK-Gear* 19 8 19 6 11 18 9 31 4 3 21 17 23 14 28 22 12 5 13 7 15 24 30 29 20 DESCRPTON AND MATERALS Pos. 1 2 3 4 5 6 7 8 9 11 12 13 14 15 Denomination Body SK-gear Disc Retaining ring Shaft Blind shaft Bearing bush Bearing bush Gasket Blind cover Marking plate Connecting Ring O-Ring O-Ring Hexagon head bolt Curving spring Material Standard EN-GJS--15 EN-GJS--7 EN-GJS--15 St 37 1.4021 1.4021 GZ-CuSn7ZnPb GZ-CuSn7ZnPb EPDM S235JRG2 Brass S235JRG2 NBR NBR Other types cpl. enamelled 1.4301 / PTFE 1.4301 / PTFE NBR, Viton EPDM, Viton EPDM, Viton Pos. 17 18 19 20 21 22 23 24 26 27 28 29 30 31 Denomination Grooved pin Cylinder head screw Round head grooved pin Grub screw Taper pin Key O-Ring Pointer Handwheel Locking ring Bush SK Counter sunk head screw Washer Counter sunk head screw Set screw Material Standard St. 50 K 1.4301 Steel chromium coated Steel 1.44 St. 50-1 K NBR Aluminium Aluminium Steel Other types EPDM, Viton * from / to / with reducing gear Subject to technical modification without notice.
HNOLOGY for electrical actuator and reduction gear 2.4 for and extension spindle 2.3 2.1 2.8 2.5 2.6 2.7 Pos. 2.1 2.3 2.4 2.5 2.6 2.7 2.8 Denomination Gearbox Bonnet Gear stem Stem nut Slide Fork piece Flap Material Standard EN-GJS--7 EN-GJS--7 Wst.-No. 1.4021 CuZn 35 NiF 45 CuZn 35 NiF 45 EN-GJS--7 St. 37 K 0 000 00 00 00 00 00 000 0 00 900 ZETA-VALUES Zeta 0,47 0 %-opening 0,45 900 0,42 00 0,40 0,35 The k v -value determines the media flow in m 3 / h in case of pressure loss of 1 related to quantity and the opening angle of the disc. The assumed temperature is between 5 and 30 C. 0 4 000 3 000 2 000 ESTMATON OF PRESSURE LOSS Δ p = Q ( [] k v ) 2 K V -Values 1 000 ESTMATON OF FLOW CAPACTY Q=k v Δ p water 1g/cm3 [m 3 /h] 0 0 20 30 40 50 70 80 90 Opening grade of disc
Eisenwerke Fried. Wilh. Düker GmbH & Co. KGaA Postfach 11 20 D-63844 Laufach GERMANY Phone + 49 (0) 93 87-0 Fax + 49 (0) 93 87-302 email info@dueker.de web http://www.dueker.de 04 / 06 731818 Loop corporate counication, Frankfurt/Main Specifications subject to change Printed in Germany. TECHNOLOGY MADE BY DÜKER DÜKER primarily develops, designs and manufactures cast iron fittings and valves for both water and gas supply. Besides the traditional flange connection we offer you well-engineered socket technologies such as screwed socket, mechanical joint, Tyton and the universally applicable Novo socket. Simultaneously DÜKER developed the thrust-resisting joints SMU, Düker SPEZAL, Tyton ST, TYTON ST PLUS, Novo ST and Novo GRP for these socket technologies. For every application a suitable joint system! Contact our service-team and ask for detailed information free of charge! CAST RON S OUR MATERAL for more than years we have been proving that tradition and innovation are not contradictory. Due to its outstanding material features such as solidity, toughness, good corrosion resistance, remarkable high pressure resistance and damping capacity, cast iron is an essential component of industrial products. Longevity, safety, good formability and efficiency makes this material unique and indispensable! Talk with us. We MOULD AND CAST for you! OPTMAL PROTECTON regarding surface protection we conform to the particular situation with professional solutions. Our coating program includes cement-mortar, bitumen, epoxy and in particular ENAMEL the best surface protection! ENAMEL is a compund material, which forms an inseparable chemical bond with the cast iron. With enamelled surfaces, corrosion, incrustation, abrasion and wear have no chance! PLEASE ASK US our engineers and technical consultants will MOULD your ideas, questions, wishes and special problems into a competent and practicable solution.