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3003 Arkusz danych(PDF) 12 Page - Christian Bürkert GmbH & Co. KG |
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3003 Arkusz danych(HTML) 12 Page - Christian Bürkert GmbH & Co. KG |
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12 / 14 page ![]() 2671 centric type p. 12/14 Item Part name Materials Specifications Comments JIS ASTM 1 Body Stainless steel SCS 13A A351 Gr. CF8 SCS 14A A351 Gr. CF8M 2 Disc Stainless steel SCS 13A A351 Gr. CF8 SCS 14A A351 Gr. CF8M 3 Seat NBR (Nitrile) – – 14°F to 176°F (-10°C to 80°C) EPDM – – -4°F to 248°F (-20°C to 120°C) EPT – – -4°F to 284°F (-20°C to 140°C) Neoprene (CR) – – 32°F to 176°F (0°C to 80°C) Silicon – – -4°F to 356°F (-20°C to 180°C) CSM – – -4°F to 275°F (-20°C to 135°C) FKM – – -0.4°F to 400°F (-18°C to 204°C) 4 Stem Stainless steel SUS 410 A182 Gr. F6A SUS 304 A182 Gr. F304 SUS 316 A182 Gr. F316 5 Pin Stainless steel SUS 304 A182 Gr. F304 6 Bush Delrin – – 7 O-ring NBR (Nitrile) – – 8 Bush RPTFE+Stainless steel RPTFE+SUS316 RPTFE+A240 Gr. 316 9 Stem retainer Stainless steel SUS 304 A240 Gr. F304 10 Pin (anti- static) Stainless steel SUS 304 A182 Gr. F304 11 Spring Stainless steel SUS 304 A182 Gr. F304 12 Screw Stainless steel SUS 304 A193 Gr. B8 Materials Burkert offers a new line of butterfly valves with stainless steel investment cast bodies (1) and discs (2) from size 1½" up to 12" in both wafer and lug styles. This line of valves has the same design features of 2671 wafer/lug style valve, plus the advantage of parts like RTFE+SS316 bushings (8), stem retainer (9), stainless steel lever operator set, and gear box, etc.; to reach a high integrity corrosion resistance exterior for use in aggressive environments. Antistatic device (10.11) has to be equipped with this valve, since the valve disc and stem was isolated by rubber liner and stem bushings. It will collect the static, which resulted by the friction between the fluids and disc. In order to prevent the dangers caused by static, the antistatic device is required. 4 3 10 11 7 5 9 6 12 1 8 8 10 11 |
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