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  • Standard model (3" - 12") has PVC body and PP disc for superior chemical resistance and elevated temperature capabilities
  • Our 316 stainless steel stem has full engagement over the entire length of the disc and is a non-wetted part, totally isolated from the media
  • Only solid and abrasion resistant plastic disc and elastomeric liner are wetted parts
  • ISO bolt circle on top flange - No body or stem modifications required for accessories
  • Stem retainer - PP retainer to prevent stem removal
  • Seat overtightening protection molded body stops and seat stress relief area
  • Spherical disc design offers increased Cv, ultimate sealing and high cycle life
  • Over molded 316 stainless steel factory lug that allows bidirectional installation
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Unit of Measure
Items
Type-57IL Isolator Lug Butterfly Valves - Gear

Type-57IL Isolator Lug Butterfly Valves - Gear
Type-57IL Isolator Lug Butterfly Valves - Gear

Type-57IL Isolator Lug Butterfly Valves - Gear
Type-57IL Isolator Lug Butterfly Valves - Gear

Type-57IL Isolator Lug Butterfly Valves - Gear
Type-57IL Isolator Lug Butterfly Valves - Gear

Type-57IL Isolator Lug Butterfly Valves - Gear
Standard N/A ANSI
Size N/A 3in (80mm) N/A 4in (100mm) N/A 6in (150mm) N/A 8in (200mm)
Body Material N/A PVC
Seat Material N/A
Stem Material N/A
Disc Material N/A PP
Operating Temperature [Min] N/A 30 ºF
Operating Temperature [Max] N/A 175 ºF
Pressure at 30 to 120 ºF N/A 150 psi
Pressure at 121 to 140 ºF N/A 70 psi N/A 45 psi N/A 45 psi N/A 40 psi
Pressure at 141 to 175 ºF N/A 30 psi N/A 30 psi N/A 30 psi N/A 20 psi
Diameter (D) N/A 7.28 in N/A 8.27 in N/A 10.63 in N/A 12.6 in
Length (L) N/A 1.81 in N/A 2.20 in N/A 2.80 in N/A 3.43 in
Height (H) N/A 6.5 in N/A 7.09 in N/A 8.27 in N/A 9.49 in
d N/A 3.03 in N/A 4.02 in N/A 5.91 in N/A 7.68 in
C N/A 6.00 in N/A 7.50 in N/A 9.50 in N/A 11.75 in
n N/A 4 N/A 8 N/A 8 N/A 8
h N/A 0.75 in N/A 0.75 in N/A 0.87 in N/A 0.87 in
D1 N/A 4.13 in N/A 5.28 in N/A 7.48 in N/A 9.53 in
D2 N/A 4.8 in
D3 N/A 6.3 in
H1 N/A 3.82 in N/A 4.41 in N/A 5.55 in N/A 6.61 in
H2 N/A 5.12 in N/A 5.71 in N/A 6.89 in N/A 8.11 in
H3 N/A 3.62 in
l N/A 9.65 in N/A 10.24 in N/A 11.42 in N/A 12.64 in
A1 N/A 6.57 in
A2 N/A 2.52 in
T N/A 1.38 in
Valve Operator N/A T-57 Plasgear®
Weight N/A 15.00 lb N/A 20.00 lb N/A 28.00 lb N/A 39.00 lb

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