1.Butterfly valve has long service life
2.Good quality and low price
3.China butterfly valve manufacturer
1.Butterfly valve has long service life 2.Good quality and low price 3.China butterfly valve manufacturer 4.Valve factory butterfly valve body: cast iron butterfly valve body butterfly valve disc: nickel plated ductile iron butterfly valve disc butterfly valve stem: stainless steel butterfly valve stem butterfly valve seat: EPDM butterfly valve seat butterfly valve taper pin: stainless steel butterfly valve taper pin butterfly valve key: carbon steel butterfly valve key butterfly valve working temperature: butterfly valve working temperature -15Â°C~150Â°C butterfly valve working pressure: butterfly valve working pressure PN10 butterfly valve suitable medium: butterfly valve suitable medium water Feature: 1. Excellent control characteristics. 2. Tight shut-off even after innumerable operations. 3. 90° movement for full open/close position. Provision for intermediatory locking after every 10° for regulation/ controlling purpose. 4. Installation cost considerably reduced because of very low weight and compact design. 5. No routine maintenance required. 6. Longer life and reliable service with minimum component wear. 7. Renewable seats. No supplementary gasket required with the adjacent pipework. 8. Body & Stem totally protected from service fluid. 9. Centrally mounted disc, shafts and bearings, therefore these valves give higher CV values.
Materials List Item Part Name Materials 1 Body Cast Iron: ASTM A126CL. B , DIN1691 GG25, EN 1561 EN-GJL-200, GB12226 HT200; Ductile Cast Iron: ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10; Stainless Steel: ASTM A351 CF8, CF8M, CF3, CF3M; Carbon Steel: ASTM A216 WCB 2 Stem Zinc Plated Steel; Stainless Steel: ASTM A276 Type 316, Type 410, Type 420, ASTM A582 Type 416; 3 Taper Pin Stainless Steel: ASTM A276 Type 304, Type 316, EN 1.4501; 4 Seat NBR, EPDM, Neoprene, PTFE, Viton; 5 Disc Ductile Cast Iron (Nickel plated): ASTM A536 65-45-12, DIN 1693 GGG40, EN1563 EN-GJS-400-15, GB12227 QT450-10; Stainless Steel: ASTM A351 CF8, CF8M, CF3, CF3M, EN 1.4408, 1.4469; 1.4501; AL-Bronze: ASTM B148 C95400; 6 O-Ring NBR, EPDM, Neoprene, Viton; 7 Bushing PTFE, Nylon, Lubricated Bronze; 8 Key Carbon Steel This buyer can select material as per materials list. The customer may mark the material and temperature used, Our company may select instead. When the medium and temperature is special, please consult with our company.
Seat Temperature Ratings Material NBR Neoprene EPDM Hypalon Viton PTFE Temperature Ratings °C -20~100 -40~100 -40~120 -32~135 -12~230 -50~200 °F -4~212 -40~212 -40~248 -25.6~275 10.4~446 -58~392 Seat materials are capable of withstanding lower temperatures without damage. However, the elastomer becomes hard and torques increase. Some flow media may further restrict the published temperature limits or significantly reduce seat life.
Test Working Pressure PN10 PN16 Shell Pressure 1.5MPa 2.4MPa Seat Pressure 1.1MPa 1.76MPa