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AWWA Knife Gate Valve
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AWWA Knife Gate Valve
Size:2″ to 36″Working
Pressure:2″to 24″: 150 psi (10 bar)28″to 36″: 100 psi (7 bar)
Part: Ductile Iron:
Gate:AISI 304
Seat:Metal/Metal or EPDM
Packing:PTFE Impreg. Synthetic . Fibre with an EPDM O-Ring
Gland Follower:CF8 DN 50mm/2″ to DN 300mm/12″or GJS400 (GGG40) DN 350mm/14″ to DN 900mm/36″
Stem:Stainless Steel
Stem nut:Brass
Yoke:Epoxy-coated Carbon Steel
Seat Retainer Ring:AISI 304
Axial fixing bush:AISI 304 (1.4301)
Friction washer:PET + solid lubricant
Guide bush:Bronze
Spring pin:AISI 420 (1.4021) (ISO 8752)
Dimension:
| Size | 2 | 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 | |
| Face-to-Face | F-F | 1-7/8 | 2 | 2 | 2-1/4 | 2-3/4 | 2-3/4 | 3 | 3 | 3-1/2 | 3-1/2 | 4-1/2 | 4-1/2 |
| Flange OD | OD | 6 | 7-1/2 | 9 | 11 | 13-1/2 | 16 | 19 | 21 | 23-1/2 | 25 | 27-1/2 | 32 |
| Bolt Circle | BC | 4-3/4 | 6 | 7-1/2 | 9-1/2 | 11-3/4 | 14-1/4 | 17 | 18-3/4 | 21-1/4 | 22-3/4 | 25 | 29-1/2 |
| Flanged Raised Face | RF | 3-5/8 | 5 | 6-3/16 | 8-1/2 | 10-5/8 | 12-3/4 | 15 | 16-1/4 | 18-1/2 | 21 | 23 | 27-1/4 |
| Inside Diameter | ID | 2 | 3 | 4 | 6 | 8 | 10 | 12 | 13-1/4 | 15-1/4 | 17-1/4 | 19-1/4 | 23-1/4 |
| No. of Bolt Holes | N | 4 | 4 | 8 | 8 | 8 | 12 | 12 | 12 | 16 | 16 | 20 | 20 |
| Hole D&T Size | D | 5/8″-11 | 5/8″-11 | 5/8″-11 | 3/4″-10 | 3/4″-10 | 7/8″-9 | 7/8″-9 | 1″-8 | 1″-8 | 1-1/8″-7 | 1-1/8″-7 | 1-1/4″-7 |
| C/L to Top-Closed | H-CLS | 14-5/8 | 15-1/16 | 16-11/16 | 20-3/16 | 23-7/16 | 27-3/4 | 31-9/16 | 37-3/4 | 43-1/8 | 46-3/8 | 50-1/8 | 55-11/16 |
| C/L to Top-Open | H-OPN | 17-1/8 | 18-9/16 | 21-3/16 | 26-11/16 | 31-15/16 | 38-1/4 | 44-1/16 | 51-3/4 | 58-7/8 | 64-3/8 | 69-3/4 | 79-7/8 |
| Handwheel Dia. | H/W | 8 | 8 | 8 | 12 | 12 | 16 | 16 | 20 | 20 | 20 | 20 | 20 |
| Weight – lbs | WT | 24 | 28 | 36 | 54 | 76 | 124 | 174 | 234 | 330 | 376 | 620 | 804 |
| Stroke | S | 2-1/2 | 3-1/2 | 4-1/2 | 6-1/2 | 8-1/2 | 10-1/2 | 12-1/2 | 13-7/8 | 16 | 18 | 20-1/8 | 24-3/16 |