172-65316M-08 (MB12A/MB12AF/MB12B/MB12BF) 7 Oct 2021
4
Specifications
DO NOT use for toxic, flammable or otherwise hazardous fluids.
Use only for fluids listed in the specification table. This product is for
intended use only. Improper use may result in such hazards as damage
to the product or malfunctions that may lead to serious accidents.
WARNING
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use only under conditions in which no freeze-up will occur. Freezing
may damage the product, leading to fluid discharge, which may cause
burns or other injury.
CAUTION
Model
MB12A
MB12AF
MB12B
MB12BF
Connection
Screwed
Flanged
Screwed
Flanged
Max. Operating Press.
PMO
1.0 MPaG
Max. Operating Temp. TMO
90 °C
185 °C
Max. Allowable Press.
PMA*
1.0 MPaG
Max. Allowable Temp.
PMO*
185 °C
Applicable Fluid
Cold water, hot water and air
Very hot water and steam
Cv Values
(Cv US)
Size
MB12A/ MB12B MB12AF/MB12BF
15 mm
9.6
8.0
20 mm
18
16
25 mm
29
26
32 mm
50
47
40 mm
82
78
50 mm
135
135
Motor Type
Single-phase capacitor-run induction motor
Power Supply Voltage
100 V AC ±10%, 200 V AC ±10%
Electrical Consumption
Sizes 15 to 25 mm: 100 V: 50 V A, 200 V: 50 V A
Sizes 32 to 50 mm: 100 V: 69 V A, 200 V: 80 V A
Control System
Toggle switch for fully-open fully-closed
Overload Protection
Built-in thermal protector
Sizes 15 to 25 mm: 115 °C ±5 °C
Sizes 32 to 50 mm: 130 °C ±5 °C
Insulating Class
Class E
Direction of Rotation
Opening: Counter-clockwise (left) when viewed from above
Closing: Clockwise (right) when viewed from above
Open/Close Time
(for 90° rotation)
Sizes 15 to 25 mm: 50 Hz: 4.5 seconds
60 Hz: 4.0 seconds
Sizes 32 to 50 mm: 50 Hz: 5.5 seconds; 60 Hz: 4.5
seconds
Protection Class
IP54 equivalent (splash-proof model)
Manual Override
Possible when power supply is OFF
(1 MPa = 10.197 kg/cm
2
)
* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are PRESSURE
SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS
Avoid using the ball valve in the half-open position, as it may result in damage to the valve
seat.
Be sure to use only in the fully open and fully closed positions.
Also, do not use with slurries.
