SKU: BFLSR

Lugged Ductile Iron Spring Return Butterfly Valve

From $253.00

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The BFL Series of Butterfly Valves is a fusion bonded epoxy coated Ductile Iron bodied valve with a 316SS Disc and EPDM seat (FKM and NBR available as option - Contact Sales). The lugged design is available to suit multiple flanges (AS2129 Table E, AS4087 PN16 / Table D, ANSI 150) and is coupled with an Anodized Aluminium Spring Return (Single Acting) Rack and Pinion Pnuematic Actuator (304SS option available - contact Sales). The seats are a unique bonded cartridge design that allows vacuum to be run through the valve, allows renewal of the seat and gives a longer lifespan to the seat. This valve is suitable for a wide range of general and watermark water applications such as water trucks, cement hoppers, irrigation and other industrial applications.

  • Ductile Iron Body (FBE Coated) with 316SS Disc & EPDM Seat (optional seats available)
  • Rack and Pinion Actuator with Namur Mouting interfaces (For Solenoid & Limit Switch) and visual indicator
  • Spring Return Actuator can be configured with a Fail Close or Fail Open position
  • Lugged variants in AS2129 Table E, AS4087 PN16 / Table D or ANSI 150. Extension Shafts can also be fitted for use in pits etc (Contact Sales)
  • Designed and Manufactured in accordance with API609, Inspected and Tested in accordance with API598
  • Watermark Approved (License Number WMK26314) (Contact Sales if required for application)
  • Valves above 600mm can be produced, Contact Sales for details
Model Size (mm) Actuator Media Pressure Media Temperature Actuator Pressure Actuator Port Size
BFL550-SR-E 50 SR63 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/8"
BFL565-SR-E 65 SR63 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/8"
BFL580-SR-E 80 SR75 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/8"
BFL5100-SR-E 100 SR88 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/8"
BFL5125-SR-E 125 SR100 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5150-SR-E 150 SR115 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5200-SR-E 200 SR125 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5250-SR-E 250 SR145 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5300-SR-E 300 SR180 Vacuum to 16 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5350-SR-E 350 SR240 Vacuum to 10 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5400-SR-E 400 SR240 Vacuum to 10 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5450-SR-E 450 SR270 Vacuum to 10 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"
BFL5500-SR-E 500 SR270 Vacuum to 10 BAR -20°C to 90°C (40°C Potable) 6 to 8 BAR 1/4"

For Sprung Open the ‘5’ in the product code changes to a ‘6’.

Spring Return Lugged Butterfly Valve

DN Actuator A B D1 F H1 H2 H3 L M P
50 SR63 162 81 114 80.4 80 161 101 43 4-M16 1/8"
65 SR63 162 81 127 80.4 80 175 101 46 4-M16 1/8"
80 SR75 208 97 146 94.5 95 181 117 46 4-M16 1/8"
100 SR88 245 116 178 109 114 200 136 52 8-M16 1/8"
125 SR88 245 116 210 109 127 213 136 56 8-M16 1/8"
150 SR115 310 142 235 137 139 223 172 56 8-M20 1/4"
200 SR125 340 154 292 148 175 260 184 60 8-M20 1/4"
250 SR145 401 179 356 168.5 203 292 209 68 12-M20 1/4"
300 SR160 430 192 406 186.5 242 337 222 78 12-M24 1/4"

All dimensions in mm unless shown otherwise. 

Spring Return Lugged Butterfly Valve Construction

Number Item Material
1 Body Fusion Bonded Epoxy Cast Iron
2 Seat Phenolic backed cartridge style EPDM
3 Disc 316 Stainless Steel
4 Shaft 416 Stainless Steel
5 Bushings PTFE
6 Stem Orings EPDM
7 Actuator Ports Anodized Aluminium
8 Pneumatic Actuator Anodized Aluminium
9 Visual Indicator Thermoplastic

Size 50mm to 600mm
Body FBE coated Cast Iron
Seat EPDM
Disc 316 Stainless Steel
Pressure Up to 16 BAR (depending upon size)
Actuation Spring Return Pneumatic

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