Lugged Ductile Iron Electric Butterfly Valve

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The BFL series of lugged butterfly valves (table E & table D/AS4087 PN16) have a ductile iron body, 316 S.S disc and an EPDM seat making them suited to a wide range of general water and industrial applications. They are operated by a high quality IP67 electric actuator, standard with visual indicator, manual override and extra limit swithces (available in all voltages). The unique bonded catridge design gives them a longer life span, allows vacuum to be run through them and makes them replaceable if ever the need should arise. Common applications include water trucks, irrigation, cement hoppers and other industrial applications. These are Watermark, Standards Mark and WSAA (Water Service Association of Australia) certified. If different flange standards or different seat materials are required please contact us.

Model Size (mm) Actuator Media Pressure Media Temperature
BFL50-E*-E 50 0M-1 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL65-E*-E 65 0M-1 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL80-E*-E 80 0M-1 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL100-E*-E 100 0M-A Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL125-E*-E 125 0M-A Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL150-E*-E 150 0M-2 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL200-E*-E 200 0M-3 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL250-E*-E 250 0M-4 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL300-E*-E 300 0M-5 Vacuum to 16 BAR -20°C to 90°C (40°C Potable)
BFL350-E*-E 350 0M-6 Vacuum to 10 BAR -20°C to 90°C (40°C Potable)
BFL400-E*-E 400 0M-7 Vacuum to 10 BAR -20°C to 90°C (40°C Potable)
BFL450-E*-E 450 0M-8 Vacuum to 10 BAR -20°C to 90°C (40°C Potable)
BFL500-E*-E 500 0M-9 Vacuum to 10 BAR -20°C to 90°C (40°C Potable)
BFL600-E*-E 600 0M-11 Vacuum to 10 BAR -20°C to 90°C (40°C Potable)

*Voltages available; 12vDC, 24vDC, 24vAC, 110vAC, 240vAC, 415vAC

Electric Actuator Lugged Butterfly Valve

DN Actuator A D1 H1 H2 H3 L M
50 0M-1 108 114 80 161 155 43 4-M16
65 0M-1 108 127 80 175 155 46 4-M16
80 0M-1 108 146 95 181 155 46 4-M16
100 0M-A 108 178 114 200 200 52 8-M16
125 0M-A 108 210 127 213 200 56 8-M16
150 0M-2 200 235 139 223 290 56 8-M20
200 0M-3 200 292 175 260 290 60 8-M20
250 0M-4 234 356 203 292 315 68 12-M20
300 0M-5 234 406 242 337 315 78 12-M24

All dimensions in mm unless shown otherwise. 


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 Fastners 316 Stainless Steel
8 Electric Actuator Powder Coated Aluminium
9 Visual Indicator Perspex

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

  • What is an Electric Lugged Butterfly Valve?

    An electric lugged butterfly valve is a butterfly valve that is designed to be held into place by bolts threading through the body of the valve. This means it can be used on outfall applications where it is only fixed into place from one side. It has a direct mounted IP67 electric actuator fixed to the valve which conducts its 90 degree turn (open/close). The body is made out of ductile iron (similar to cast iron but better advantages in terms of strength, elongation & life) and is known as a center line butterfly valve. The center line refers to the location of the disc and shaft in relation to the body (there are other kinds of butterfly valves such as double & triple offset) where it is precisely in the middle. These valves can have different seat materials but the most common would be EPDM but others such as FKM, NBR or PTFE are also used. The actuator comes with extra limit switches for voltage free end of stroke open/close feedback and a visual indicator.

  • How does an Electric Lugged Butterfly Valve work?

    A butterfly valve works by the shaft rotating 90 degrees which will take the position of the disc in the flow from open to close (or vice versa). When it is closed a seal will be formed between the disc and the seat effectively stopping the flow of the media. When it is opened again the disc comes away from the seat and when it is fully open sits side (smallest surface area facing) on to the direction of the upstream flow. This 90 degree turn is conducted by an electric actuator which is connected to a shaft which in turn is mated to the disc by a spline. When the actuator is operated by an external relay the shaft will be rotated effectively turning the disc, switching it to its other state (either open or close). It will take anywhere from 8 to 20 seconds for a cycle depending upon the actuator size (it generally gets longer as the actuator size increases with required torque). Once it rotates its required 90 degrees a microswitch on a cam is triggered and power to the motor is shut off. It will then wait for the relay to be switched and the valve will do the same thing in the other direction.

  • How long will my Electric Lugged Butterfly Valve last?

    Like any valve this depends upon the usage case of your butterfly valve, its environment, media and how many times it is cycled. For instance if it is on a clean wet media, in a clean environment and not cycled regularly the life will be decades. If it is on a corrosive media and in a dry application with a high cycle rate the life will be much shorter. We conduct regular lab testing and 6,000 cycles is a reasonable life cycle depending upon the application. One advantage of this design is that the seat is replaceable and available as a repair kit. The actuator's life will depend upon how clean the environment is, its correct installation, its duty cycle and electrical supply. Being CE certified they have been tested to 6,000 life cycles for general purpose applications but can last much longer. One common mistake we see is an incorrectly rated cable gland being installed. Our actuators are IP67 which gives you great water ingress protection but it will only be as good as the cable gland installation. You need to bear in mind the duty cycle of the actuator model you are using and do not exceed that eg. (if it is 75% you can use the actuator for 75 seconds with a 25 second down time out of 100 seconds). If you do it can lead to premature failure of the actuator.

  • How do I install an Electric Lugged Butterfly Valve?

    These lugged butterfly valves are designed to have bolts threaded into the body of the valve. The seat of the valve also forms the gasket on the flanges so there is no need for a secondary gasket. The bolts should be tightened in a diagonal shape to avoid over tightening in one area. For a full list of instructions please visit our butterfly valve installation & maintenance guide. The electric actuator must be wired in accordance with the wiring diagram which is on the front of the actuator and also inside the housing. This varies between models and voltages so if there is any doubt please consult us.

  • What are typical uses of an Electric Lugged Butterfly Valve?

    These are very common in the water industry especially because most of our models hold a Watermark and Standards mark approval. They are also used for general purpose applications as long as the media, temperature and pressure are compatible. As it has an electric actuator it is usually used in applications where a reliable air source is not present (as it is cheaper and faster to use a pneumatically actuated ball valve). Also if the actuator loses power it will fail in the position it is in (even if it is part way through a cycle eg. half open etc) so they are not used in fail safe applications. Here a spring return pneumatic or spring return electric actuator would be used (spring return electric is expensive).

  • How long will my product take to get to me? 

    This depends upon where you are based and the freight method chosen. If the express freight option is selected it is usually next day delivery to metropolitan areas in Australia for under 5kg. If free freight has been selected it will go by road freight which can be anywhere from 1 to 10 days depending upon your location. It usually averages 3 days.

  • What warranty do I get?

    All of our products come standard with a 12 month warranty. The good news is we have very strict quality controls and all valves leave our warehouse tested (full material and testing certificates to API 598 are available) and inspected so there are rarely any issues. Also once your valve is in and operating it will most likely continue to do so for a very long time. 

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