BUTTERFLY VALVE

GN501N

NYLON 11 COATED DISC

Gear operated Lug butterfly valves full port.
• Epoxy coated ductile iron lug body.
• Pressure rating: 250 psi water (40°F to 80°F).
• Food grade EPDM resilient seat -30°F to 250°F.
• Low turn ratio.
• API609 face to face flange.
• Floating dual shaft disc design.
• IP54 enclosure.
• MSS SP 67 compliant.
• No pins in disc prevent potential leak points.
• NSF certified for drinking water service (EPDM seats only).
• Dead end service to 100 psi.
G531S: VITON® SEATS - size 2” to 12”.
G541N-G541S: BUNA-N SEATS - size 2” to 12”.

Technical specifications
Position Part name Material N.° pieces
1 BODY DUCTILE IRON 1
2 SEAT EPDM (30F TO 250F) 1
3 LOWER SHAFT AISI 416 1
4 DISC G501N IRON NYLON 11 1
5 UPPER SHAFT AISI 416 1
6 LOCATING PIN CARBON STEEL 1
7 BUSHING PTFE 1
8 O-RING EPDM 1
9 GEAR CAST IRON 1
SIZE ISO 5211 ⧄B A B L H M N Ødo ØK Z-Ød Øg F ØD1 N°-TH Weight Lbs Seat Torque 100 psi Seat Torque 200 psi Cv (GPM@ 1 psi) 50% OP Cv (GPM@ 1 psi) 100% OP
1 1/2" F05 9 mm 7.24 2.97 1.61 13.12 4.75 6.00 0.50 3.03 4-0.28 1.38 0.12 4.74 4-5/8"-11 19.1 111 133 35 108
2" F05 9 mm 7.60 3.15 1.65 13.93 4.75 6.00 0.50 3.03 4-0.28 1.38 0.12 4.74 4-5/8"-11 19.9 126 146 49 146
2 1/2" F05 9 mm 8.15 3.50 1.76 14.83 4.75 6.00 0.50 3.03 4-0.28 1.38 0.12 5.49 4-5/8"-11 20.8 134 167 84 284
3" F05 9 mm 8.38 3.74 1.78 15.31 4.75 6.00 0.50 3.03 4-0.28 1.38 0.12 6.00 4-5/8"-11 21.9 205 223 128 547
4" F07 11 mm 9.13 4.49 2.05 16.8 4.75 6.00 0.62 3.54 4-0.35 2.17 0.12 7.50 8-5/8"-11 31.3 339 386 195 844
5" F07 14 mm 9.60 5.00 2.14 17.78 4.75 6.00 0.75 3.54 4-0.35 2.17 0.12 8.50 8-3/4"-10 35.5 523 602 320 1375
6" F07 14 mm 10.16 5.47 2.20 18.81 4.75 6.00 0.75 3.54 4-0.35 2.17 0.12 9.50 8-3/4"-10 42.8 677 996 418 1882
8" F10 17 mm 12.01 6.89 2.34 24.73 8.35 9.84 0.87 4.92 4-0.47 2.76 0.14 11.75 8-3/4"-10 68.6 1205 1864 745 3340
10" F10 22 mm 13.27 7.99 2.58 27.03 8.35 9.84 1.12 4.92 4-0.47 2.76 1.40 14.25 12-7/8"-9 87.3 1890 3140 1264 5475
12" F10 22 mm 15.04 9.53 3.03 30.34 9.06 8.94 1.24 5.51 4-0.47 2.76 1.40 17.00 12-7/8"-9 121.3 2808 4767 1905 8270

WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov.

Certifications
NSF
NSF-ANSI
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