Steam Valve

valve steam used in HVAC 0-10VDC 2-10VDC 4-20mA to choose direct or reverse acting temperature of medium:-10 to 180 degree C

The QM/QF series of electric valve actuators are used in heating, ventilation, and air-conditioning (HVAC) applications. The VT series of electric valve actuators are modulating control actuators  used with controls that provide an analog output of 0 to 10Vdc, 2 to 10Vdc or 4-20mA. The internal selector plug can be used to reverse the direction of action. The QF series of electric valve actuators are controlled by an on/off output.

FEATURES

 Low power consumption

 Position feedback by signal

 Direct/reverse acting

 4-20mA/0-10V/2-10V choice

 Maintenance free

 Quick and easy installation

 No separate linkage required

 Accurate valve positioning

 Indicator Continuous Position Indicator      

 Manual Override Non-clutch design     

 Gear Permanently lubricated and self locking      

 Stall Protection Built-in thermal protection   

MODEL NUMBER DESCRIPTIONS

VALVE
Flow media	Cold and hot water, water with max. 50% volume of glycol
Temperature of medium	-10°C.. +180°C
Rated pressure	1600 / 2760kPa
Leakage rate	Air bubble-tight (Bo 1, DIN 3230)
Closing pressure	1000kPa
Size	DN25-DN100
Material	Body Cast copper or Stainless Steel ,Shaft Stainless Steel,
Actuator
Actuator	QF/QM
Output torque	10, 16, 25, 40N.m
Power supply	AC220V or AC/DC24V
Run time	About 120S
Operating power	5VA
Output angle	90°± 3°
ON/OFF control signal	1 wire or 2 wire control
Control signal	4~20mA, 1~5V, or 0(2)~10V
Feedback signal	DC0 -10V
Installation position	Upright to horizontalNo upset
Protection class	IP54
Ambient conditions	- 10°C. to. +55°C   0..90% RH
Weight	1kg
Material	Flame-resistant Abs

OPERATION  

The internal force sensor will turn off the actuator when the valve is locked accidentally during running, so the motor of the actuator will never overload.

  

Manual operation

The QM/QF are equipped with a manual operator knob to open or close valves in the events of power failure.

Push down the manual operator knob and turn the knob:

A: counterclockwise to drive the valve close

B: clockwise to drive the valve open

Direction of action

Repositioning the selector plug S3 can change the direction of action.

S3 ON 10V/20 mA  OFF 0V

Control signal

The control signal Vdc/mA can be changed by selector plug S1.

The control signal 0-10V/2-10V can be changed by selector plug S2

S1 ON 0-20mA/OFF 0-10V

S2 ON 2-10V/OFF 0-10V OR ON 4-20mA/OFF 0-20 mA

 

Note:

Turn the power off before changing the following setting.

DN	Dimensions(mm)		R	N	Kvs
mm	L	H			ON/OFF	MODULATING
65	93	86	120	4	90	82
80	108	95	135	8	118	105
100	120	104	150	8	125	114

DN	Dimensions(mm)			Thread	Kvs
mm	Lmp.	L	H	R	ON/OFF	MODULATING
25	1	80	70	1	20	13
32	1-1/4	100	70	1-1/4	43	24
40	1-1/2	110	85	1-1/2	54	34
50	2	120	90	2	70	56

Steam Valve