Quarter Turn Actuators

We are Manufacturer, Supplier, Exporter of Quarter Turn Electric Actuators, Quarter-Turn Electric Actuators, Quarter Turn Electrical Actuators, Quarter-Turn Electrical Actuator, Quarter Turn Actuator. Our set up is situated in Pune, Maharashtra, India and we provide our products and services to ALL OVER THE WORLD.

QT series of electrical Actuators from Marsh have been developed specially for the quarter turn operation of small size Butterfly, Ball, Plug valves and dampers. Thanks to their design simplicity to achieve low-cost automation. They are provided with single phase motors which considerably saves the cost of electrical hardware and other accessories.

Also as the actuators are installed directly on final control element and are provided with stall-duty motors, the units become completely maintenance free, that is Fit and Forget type. The units are supplied with all necessary features to operate the final control element in ON/OFF or modulating modes.

Technical Data & Specifications

Actuator Data	Actuator Models
	QT-3	QT-5	QT-10	QT-20	QT-30	QT-40	QT-50
Rated Output Torque Kgm	3	5	10	20	30	40	50
Operating Speed Sec /90°	17	17	20	20	26	26	26
Switching Frequency Operations / Hour a) Short Time b) Normal	1200 600
Weight Kg.	14	15	27	28	38	40	42
Degree of Protection	IP65/IP67
Area of Operation	Safe
Motor Data
Type	Non-Blocking A. C. Motor
Supply : Standard Optional	220V AC 50Hz Single Phase, 24VDC 110 - 415 V AC 50Hz
Output wattes	90	125	175	250	290	300	320
Nominal Current Amp	0.5	0.55	0.9	1.2	1.3	1.4	1.5
Class Insulation	F
Ambient Temperature	45° C

Actuator Dimention Details

Actuator Model	Dimensions													Mounting Holes 4H M6 x12 Deep on 50 PCD Off Centre. 4H M8 x12 Deep on 70 PCD Off Centre.
Actuator Model	E	F	øG	øH	øJ	K	L	M	N	P	Q	R	øS
QT-3	32	170	108	30	100	70	235	70	220	33	140	22	100
QT-5	32	170	108	30	100	70	255	70	220	33	140	22	100
QT-10	37	245	108	30	100	93	380	63	240	33	186	17	125	4H M8 x15 Deep on 70 PCD Off Centre. 4H M10 x15 Deep on 102 PCD Off Centre.
QT-20	37	245	108	30	100	93	400	63	240	33	186	17	125
QT-30	57	235	108	30	100	120	480	122.5	275	33	290	0	125
QT-40	57	235	108	30	100	120	490	122.5	275	33	290	0	125
QT-50	57	235	108	30	100	120	500	122.5	275	33	290	0	125

Accessories

STANDARD

Limit Switches (1No.+1Nc) - 2 Nos. (Rating 10 A - 250 VAC)
Hand wheel
Local position indicator
Adjustable mechanical stoppers

OPTIONAL

Auxiliary limit switches - (1No + 1Nc) - 4 Nos.
Torque limit switches (1No + 1Nc) - 2 Nos (for QT10 onwards)
Three position switch for ON/OFF operation Field/Panel mounted
Feed back Potentiometer
Valve positioner - Field / Panel mounted Input : 4-20mA/0-10 V DC.
Output : Proportional
Two wire transmitter field /Panel mounted
Input : From potentiometer in actuator - 100 to 235 ohms or 0-1000 ohms
Output : 4-20 mA - Two wire
IP 67 Protection
Remote position indicator-Digital
Space heater
Special accessories on request

Connection Digram