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Our firm insists all along the quality policy of “product top quality is base of company survival; purchaser pleasure could be the staring point and ending of an organization; persistent improvement is eternal pursuit of staff” plus the consistent purpose of “reputation very first, buyer first” for Butterfly Valve, China Double Flange High Performance, During the short years, we serve our clients honestly as Quality First, Integrity Prime, Delivery Timely, which has earned us an outstanding reputation and an impressive client care portfolio. Looking forward to working with you Now!
Technical parameters of groove type non rising stem elastic seat sealing gate valve
Nominal diameter | Nominal pressureèMPaé | Sealing testèMPaé | Shell test pressureèMPaé | Medium temperature | Applicable medium |
DN50~DN300 | 1.0/1.6 | 1.1/1.76 | 1.5/2.4 | 0~70æ | Clean water, sewage and raw water |
Material of main parts
name | valve body | spool | Valve core rubber | Valve cover | Stem | snap ring | Gland | Bracket | seal ring | handwheel | Bolt |
texture of material | Ductile iron | Ductile iron | EPDM¡¢NBR | Ductile iron | 20Cr13 | bronze | Ductile iron | Ductile iron | NBR Ductile iron | Ductile iron | 8.8 Galvanized |
Main connection dimensions                                                     mm
Nominal diameter | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||
D | 57 | 60 | 76 | 89 | 108 | 114 | 133 | 159 | 219 | 273 | 325 |
140 | 165 | ||||||||||
A | 14.5 | 14.5 | 14.5 | 16 | 16 | 16 | 19 | 19 | 19 | ||
B | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 9.5 | 13 | 13 | 13 | ||
C | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.5 | 2.5 | 3.3 | ||
L | 145 | 180 | 180 | 180 | 200 | 240 | 275 | 325 | 355 | ||
H | 325 | 422 | 422 | 422 |