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Steam Electric Actuator

Product Details
Specifications
Boiler & Steam Applications
Sizes & Dimensions
Construction

CHEMTROL^® Steam Electric Actuated Ball Valve

Automatic On/Off Control for Steam, Boilers and Hot Water

The CHEMTROL^® Steam Electric Actuator combines a 316 stainless steel, three-piece, full-port ball valve with a heavy-duty IP67 electric actuator. It opens and closes the line automatically on a signal from a controller, PLC, BMS or timer, and suits steam, hot water and process lines up to 180 °C.

How It Works

When the controller switches power to the “open” or “close” terminal, an electric motor drives the valve a quarter turn (90°) through a steel gearbox. At the end of its travel a cam-operated switch cuts the motor, and the valve stays where it is until the next signal.

A visual indicator on top shows whether the valve is open or closed, two extra voltage-free switches can confirm the position back to the control system, and a manual override lets the valve be operated by hand if power is lost.

Built for Heat

The valve has reinforced PTFE seats and stem seals, and the actuator sits on an ISO 5211 mounting pad above the valve, keeping heat away from the motor. The motor itself has built-in thermal protection.

Specifications

Item	Specification
Valve	316 stainless steel, three-piece, full-port ball valve
Sizes	DN8 – DN50 (¼" – 2")
Connections	BSP female
Ball and Stem	Polished 316 stainless steel
Seats and Stem Seals	Reinforced PTFE; Viton® backing O-ring
Pressure Rating	Up to 63 bar
Steam Pressure	Up to 10 bar
Temperature Range	−20 – 180 °C
Actuator	Electric, 90° on/off, with manual override
Supply Voltage	230 V AC (other voltages on request)
Actuator Torque	35 Nm (DN8 – DN40); 50 Nm (DN50)
Operating Time	About 13 seconds (DN8 – DN40); about 24 seconds (DN50)
Duty Cycle	30% at 230 V AC
Position Indication	Visual indicator, plus 2 voltage-free limit switches
Motor Protection	Built-in thermal cut-out
Housing	Powder-coated aluminium, IP67
Cable Entries	2 × M20 × 1.5
Mounting	ISO 5211, 316 stainless steel pad
Control	CHEMTROL® controllers, PLC, BMS, SCADA, timers, dry contacts
Approvals	CE

Boiler Blowdown

CHEMTROL^® uses this valve for automatic boiler blowdown. The BT110 Blowdown Controller or BT112 Dual Blowdown Controller measures the boiler water’s conductivity (TDS) and opens the valve when it rises above the set point, closing it again once fresh feedwater has brought it back down.

See the Boiler Plumbing Setup for how the valve fits into a typical installation.

Other Applications

Steam distribution and isolation
Hot water systems
Chemical dosing and water treatment lines
Food and beverage plants
Pharmaceutical plants
Industrial process automation and general isolation

Key Features

316 stainless steel, three-piece, full-port ball valve with BSP female ends
Reinforced PTFE seats and stem seals
Steam service up to 10 bar; rated up to 63 bar
Heavy-duty IP67 electric actuator, powder-coated aluminium housing
90° on/off operation from any controller output
Visual position indicator
Two extra voltage-free limit switches for position feedback
Manual override for emergency operation
Motor with built-in thermal protection
ISO 5211 direct mounting
Works with CHEMTROL^® controllers, PLC, BMS and SCADA systems, timers and dry contacts

Steam electric actuated ball valve dimensions A, B, C, H, L and DN

Sizes & Dimensions

Size	Actuator Torque	A	B	C	H	L
DN8 (¼")	35 Nm	108	17	138	207.3	60
DN10 (⅜")	35 Nm	108	17	138	207.3	60
DN15 (½")	35 Nm	108	17	138	220.3	73.5
DN20 (¾")	35 Nm	108	17	138	232.8	80
DN25 (1")	35 Nm	108	17	138	241.9	90
DN32 (1¼")	35 Nm	108	17	138	252.7	110
DN40 (1½")	35 Nm	108	17	183	318	120
DN50 (2")	50 Nm	108	17	183	332.6	140