Auto Return Electric Ball Valve


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Return Position


The BAS series electrically actuated ball valves automatically returns the valve to its original position when de-energised. The compact design works in the same way as a solenoid valve and can be considered ‘fail safe’ once the storage capacitor has charged up (approx 60 seconds). Unlike a solenoid valve the BAS can take full pressure in either direction, eliminating the need for a check valve. The BAS series has a wide range of industry applications namely; dirty or contaminated fluids, viscous fluids, some corrosive fluids (check compatibility), gravity feed applications, anti water hammer slow close function, IP65 corrosive resistant enclosure, low power/solar/battery operated circuits (12-24v AC/DC). All sizes come with a manual override. Threads conform to ISO 7.1 Sealing Threads.

Model Size (BSP) Size (mm) Media Pressure Media Temperature
BASM54B-EL-T 1/2" 15 0 to 10 Bar 2°C to 90°C
BASM55B-EL-T 3/4" 20 0 to 10 Bar 2°C to 90°C
BASM56B-EL-T 1" 20 0 to 10 Bar 2°C to 90°C

*For Normally Open function change '5' to a '6'

Body Material 316 S.S
Ball Material 316 S.S
Seat Material PTFE with Viton O’Ring
Enclosure Thermoplastic IP65
Current 5 Watt Max (45 ~ 100 mA)
Current Draw at rest (open or close position) 20 Milli Amp
Capacitor Charge Time 60 Seconds
Open/Close Time 5 Seconds
Mounting Any Attitude
Media Pressure 10 BAR Max
Media Temperature 0°C to 90°C


Capacitor Return Electric Ball Valve Dimensions

DN D1 (BSP) ød L1 L2 L3 F H1 H2 H3 b d W (kg)
15 ½” 15 11 11 53.5 27 16 22 50 52 62 0.35
20 ¾” 20 10 10 61 30 21.5 21.5 50 52 62 0.35
25 1” 20 16 16 73 38 25.5 25.5 50 52 62 0.5

Size 1/2" to 1" BSP
Body 316 Stainless Steel
Pressure  10 BAR
Temperature 0°C to 90°C
Actuation Capacitor Return Low voltage

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