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 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 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 BodyDiscShaftSeatBushings x 4SealPinKeyScrews
DescriptionCast 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 BackedBuna-N O-RingType 316 Stainless Steel 4,5Carbon Steel (Sizes 12″ – 48″)18-8 Stainless Steel 1 (Optional)
SpecificationsASTM 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 TypeClassBody TypeBody MaterialDisc MaterialSeat MaterialOperator
8″BI = Butterfly Resilient Seated125 = 125Lb.W = WaferBodyI =CastIronD = Ductile Iron – Electrolytic PlatedB =Buna-NL = Standard 10 Position Lever Assembly
L = Lug Body – Dead End ServiceD =DuctileIronB =AluminumBronzeE =EPDMLI = Infinite Position Lever Assembly
SS = Type 316 Stainless SteelT =Teflon-LinedEPDMG =ManualGear
V =VitonP =Pneumatic
B =Bare

 

IFC Series BH150W/L, Parts and Materials:
Part No. Name BodyDiscShaftSeatBushings x 2PackingPacking HardwareGland RetainerInner Gland RingSeat RetainerThrust WasherDisc PinO-RingEnd CapEnd Cap HardwareShaft Retainer RingSupportSupport HardwareName PlateSpring
Carbon Steel ASTM A216-WCBASTM A351-CF8M (316 SS)ASTM A276-316PTFE/RPTFEHigh Temperature Fiberglass Composite Backed RPTFEPTFE – V-Type300 Series Stainless SteelASTM A216-WCBASTM A276-316ASTM A351-CF8M (316 SS)ASTM A276-316ASTM A276-316VitonASTM A351-CF8M (316 SS)300 Series Stainless SteelASTM A276-302ASTM A216-WCBPlated Carbon Steel300 Series Stainless SteelInconel X750
Stainless SteelASTM A351-CF8M (316 SS)ASTM A351-CF8M (316 SS)ASTM A276-316PTFE/RPTFEHigh Temperature Fiberglass Composite Backed RPTFEPTFE – V-Type300 Series Stainless SteelASTM A351-CF8M (316 SS)ASTM A276-316ASTM A351-CF8M (316 SS)ASTM A276-316ASTM A276-316VitonASTM A351-CF8M (316 SS)300 Series Stainless SteelASTM A276-302ASTM A351-CF8M (316 SS)300 Series Stainless Steel300 Series Stainless SteelInconel X750

 

IFC Series BH150W/L Valve, How to Order:
Size In.Valve TypeANSI Pressure ClassBody TypeBody MaterialDisc and Shaft MaterialSeat MaterialOperator
8″BH = Butterfly Resilient Seated150W = Wafer BodyS = Carbon Steel, A216-WCBSS = Type 316 SST = Teflon, PTFEL = Standard 10 Position Lever Assembly
L = Lug BodySS = Stainless Steel, A351-CF8MRT = Reinforced Teflon, RPTFEG = ManualGear
E = Electric
P = Pneumatic
B = Bare

 

IFC Series BDC, Parts and Materials:
Part No. Name BodyDiscShaftSeatBushingsPackingPin
DescriptionCarbon Steel, Stainless SteelCarbon Steel, Stainless SteelStainless SteelBuna-N, EPDM,Viton, Fibre, Metal to MetalMeehaniteTeflonStainless Steel
SpecificationsASTM A36, ASTM A516-70, ASTM A240ASTM A36, ASTM A516-70, ASTM A240ASTM A479

 

IFC Series BDI, Parts and Materials:
Part No. Name BodyDiscShaftSeatBearingPackingPinPurge AssemblyStop Collar
DescriptionCarbon Steel, Stainless SteelCarbon Steel, Stainless SteelStainless SteelBuna-N, EPDM,Viton, Fibre, Metal to MetalSet screw type C/W flangeGraphoilStainless SteelStainless Steel (Optional)Carbon Steel
SpecificationsASTM A36, ASTM A516-70, ASTM A240ASTM A36, ASTM A516-70, ASTM A240ASTM A479

 

IFC Series BDC/BDI, How to Order:
Size In.Valve TypeFlange Bolt PatternBody TypeBody MaterialDisc MaterialShaft MaterialShaft SupportSeat MaterialPacking MaterialOperator
16″BDC = Damper Butterfly Valve (Commercial)150 = ANSI 150 Lb.W = Wafer BodyS = Carbon SteelS = Carbon SteelSS4* = 304 Stainless SteelM = Upper and lower Meehanite bushingsM = Metal to MetalT = TeflonL = Standard 10 Position Lever Assembly
BDI = Damper Butterfly Valve (Industrial)300 = ANSI 300 Lb.L = Lug BodySS4* = 304 Stainless SteelSS4* = 304 Stainless SteelSS6* = 316 Stainless SteelR = Upper and lower External bearingsB = Buna-NG = GraphoilLI = Infinite Position Lever Assembly
O =Other(Specify)SS6* = 316 Stainless SteelSS6* = 316 Stainless SteelE =EPDMG = Manual Gear
V = VitonE = Electric
F = Fiberflax Tape Inconnel Wire ReinforcedP = Pneumatic
N = None (Swing Thru Disc)B = Bare

 

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