IFC Butterfly Valves

IFC Islip Flow Controls Basket and Y Strainers

For all model and part information on IFC Butterfly Valves, please view our pdf catalog HERE .

IFC Butterfly Valves Pressure Assisted Seat Sealing System Advantages

Seat is non-compressed as disc approaches. Disc is closed with no line pressure. Disc in closed position; Line pressure applied from left side. Disc in closed position; Line pressure applied from right side. As the seat cross section is bellow shaped,line pressure exerts an upwards force on the seat independent of which side of the seat is under high pressure. This action forces the seat against the disc. Increased line pressure causes tighter sealing, thus ensuring bubble tight sealing at all differential pressures.

IFC Butterfly Valves Sealing System Advantages

  • The IFC Series BH150W/L Butterfly Valve incorporates an innovative seat design that ensures bi-directional bubble tight seating at all differential pressures. Advantages of the IFC sealing system include:
  • As system differential pressure increases the seat-disc interface proportionally tightens to maintain an effective seal.
  • The IFC Butterfly Valves seat assembly is locked and slightly compressed in the body recess by a full-faced seat retainer, thus ensuring the seat is secure regardless of the disc position.
  • The IFC Butterfly Valves seat is self adjusting to temperature changes and wear.
  • The full face seat retainer is held in place by a circumferential snap spring constructed from Inconel. Unlike competitive designs that use bolts to retain the seat and seat retainer, the IFC design results in “ZERO” interruption across the full gasket seating surface.
  • Since no special tools are required for the removal of the seat retainer, seat replacement is extremely easy. Remove the seat retainer by rotating it counter-clockwise, rotate the disc into the closed position and place a new seat into the seat chamber machined into the valve body.

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ifc butterfly-valves-catalog

IFC Series BI125W/L Valve, Parts and Materials:
Part Name Body Disc Shaft Seat Bushings x 4 Seal Pin Key Screws
Description Cast Iron
Ductile Iron
Ductile Iron Electrolytic Nickel Plated
Aluminum Bronze
Type 316 Stainless Steel
Type 416 Stainless Steel
Type 316 Stainless Steel 2
Buna-N (-10°F to 180°F)
EPDM (-10°F to 225°F)
Viton 26B (-10°F to 275°F)
Teflon lined EPDM (-10°F to 225°F)
Teflon Impregnated Fiberglass Backed Buna-N O-Ring Type 316 Stainless Steel 4,5 Carbon Steel (Sizes 12″ – 48″) 18-8 Stainless Steel 1 (Optional)
Specifications ASTM A126-B
ASTM A536 65-45-12
ASTM A536 65-45-12
ASTM B148 C954
ASTM A351-CF8M
ASTM A582
ASTM A276

 

IFC Series BI125W/L Valve, How to Order:
Size In. Valve Type Class Body Type Body Material Disc Material Seat Material Operator
8″ BI = Butterfly Resilient Seated 125 = 125Lb. W = WaferBody I =CastIron D = Ductile Iron – Electrolytic Plated B =Buna-N L = Standard 10 Position Lever Assembly
L = Lug Body – Dead End Service D =DuctileIron B =AluminumBronze E =EPDM LI = Infinite Position Lever Assembly
SS = Type 316 Stainless Steel T =Teflon-LinedEPDM G =ManualGear
V =Viton P =Pneumatic
B =Bare

 

IFC Series BH150W/L, Parts and Materials:
Part No. Name Body Disc Shaft Seat Bushings x 2 Packing Packing Hardware Gland Retainer Inner Gland Ring Seat Retainer Thrust Washer Disc Pin O-Ring End Cap End Cap Hardware Shaft Retainer Ring Support Support Hardware Name Plate Spring
Carbon Steel ASTM A216-WCB ASTM A351-CF8M (316 SS) ASTM A276-316 PTFE/RPTFE High Temperature Fiberglass Composite Backed RPTFE PTFE – V-Type 300 Series Stainless Steel ASTM A216-WCB ASTM A276-316 ASTM A351-CF8M (316 SS) ASTM A276-316 ASTM A276-316 Viton ASTM A351-CF8M (316 SS) 300 Series Stainless Steel ASTM A276-302 ASTM A216-WCB Plated Carbon Steel 300 Series Stainless Steel Inconel X750
Stainless Steel ASTM A351-CF8M (316 SS) ASTM A351-CF8M (316 SS) ASTM A276-316 PTFE/RPTFE High Temperature Fiberglass Composite Backed RPTFE PTFE – V-Type 300 Series Stainless Steel ASTM A351-CF8M (316 SS) ASTM A276-316 ASTM A351-CF8M (316 SS) ASTM A276-316 ASTM A276-316 Viton ASTM A351-CF8M (316 SS) 300 Series Stainless Steel ASTM A276-302 ASTM A351-CF8M (316 SS) 300 Series Stainless Steel 300 Series Stainless Steel Inconel X750

 

IFC Series BH150W/L Valve, How to Order:
Size In. Valve Type ANSI Pressure Class Body Type Body Material Disc and Shaft Material Seat Material Operator
8″ BH = Butterfly Resilient Seated 150 W = Wafer Body S = Carbon Steel, A216-WCB SS = Type 316 SS T = Teflon, PTFE L = Standard 10 Position Lever Assembly
L = Lug Body SS = Stainless Steel, A351-CF8M RT = Reinforced Teflon, RPTFE G = ManualGear
E = Electric
P = Pneumatic
B = Bare

 

IFC Series BDC, Parts and Materials:
Part No. Name Body Disc Shaft Seat Bushings Packing Pin
Description Carbon Steel, Stainless Steel Carbon Steel, Stainless Steel Stainless Steel Buna-N, EPDM,Viton, Fibre, Metal to Metal Meehanite Teflon Stainless Steel
Specifications ASTM A36, ASTM A516-70, ASTM A240 ASTM A36, ASTM A516-70, ASTM A240 ASTM A479

 

IFC Series BDI, Parts and Materials:
Part No. Name Body Disc Shaft Seat Bearing Packing Pin Purge Assembly Stop Collar
Description Carbon Steel, Stainless Steel Carbon Steel, Stainless Steel Stainless Steel Buna-N, EPDM,Viton, Fibre, Metal to Metal Set screw type C/W flange Graphoil Stainless Steel Stainless Steel (Optional) Carbon Steel
Specifications ASTM A36, ASTM A516-70, ASTM A240 ASTM A36, ASTM A516-70, ASTM A240 ASTM A479

 

IFC Series BDC/BDI, How to Order:
Size In. Valve Type Flange Bolt Pattern Body Type Body Material Disc Material Shaft Material Shaft Support Seat Material Packing Material Operator
16″ BDC = Damper Butterfly Valve (Commercial) 150 = ANSI 150 Lb. W = Wafer Body S = Carbon Steel S = Carbon Steel SS4* = 304 Stainless Steel M = Upper and lower Meehanite bushings M = Metal to Metal T = Teflon L = Standard 10 Position Lever Assembly
BDI = Damper Butterfly Valve (Industrial) 300 = ANSI 300 Lb. L = Lug Body SS4* = 304 Stainless Steel SS4* = 304 Stainless Steel SS6* = 316 Stainless Steel R = Upper and lower External bearings B = Buna-N G = Graphoil LI = Infinite Position Lever Assembly
O =Other(Specify) SS6* = 316 Stainless Steel SS6* = 316 Stainless Steel E =EPDM G = Manual Gear
V = Viton E = Electric
F = Fiberflax Tape Inconnel Wire Reinforced P = Pneumatic
N = None (Swing Thru Disc) B = Bare

 

For technical information on any of these models view our catalog here.