TERMEN - Self-acting Temperature Control Valves RTB

Self-acting Temperature Control Valves - RTB

Self-acting Temperature Control Valve flanged RTB

Self-acting Temperature Control Valves screwed RTBm

Self-acting Temperature Control Valves RTB - construction

Self-acting temperature control valves type RTB are used in heating and industrial installations, ventilation and air conditioning, boiler houses. Temperature control valves are designed to maintain a constant temperature of regulated medium in range of 20°C to 120°C. Temperature regulators RTB and RTBm are suitable for media such as cool or hot water, steam up to temperature 180°C for valves with flanged body type ZRTP. Temperature control regulators with valves type ZRT and ZRTM are designed for water on temperature up to 150°C and non-flammable gases of temperature up to 80°C. With no signal from temperature sensor valves are open. Increase of temperature closing the valve. The valves with opening funtion are close with no signal from the sensor. Increase of temperature opening the valve. All valves have a soft closing of the a valve-seat.

Key Features of the temeprature controllers:

Maintenance free.
Accurate and reliable - for years of trouble free sevice.
Easy to use.
Controling without outside energy.
Suitable for places remote from any power source.
Protection against overheating.

Construction:

Temperature regulators have a proportional valves. In order to ensure a stable regulatory a valve plug (3) is balanced 4). The device consists of two units:
- the valve: valve body (1), seat (2), plug (3), balanced unit (4), stem (5), pusher (6) ;
- sensor: spiral or tube (7), the plunger (8), setting knob (9), the pulse pipe(10).

Principle Of Operation

Temperature control valves operating on the principle of expansion manometric liquid, which is located in the sensor. The medium flows the spirale or the tube (7). The capacity of the manometric liquid is changing and creates a force moving the plunger (8) and the valve stem (5) with the plug (3). Desired value of the temperature is setting by using the setting knob (9). Rotate knob (9) changes the capacity of the chamber (B), with the result that controller can operates in different temperature ranges. The valve plug (3) with no the energy is open. Increase of the temperature measured by the sensor causes closure plug (3), while lowering its opening.

Installation:

The valve should be mounted on a horizontal pipeline. The direction of flow must be in accordance with an indication of the arrow on the valve body. To ensure the correct operation, the controller must protect by a filter or the magnetic strainer.

Installation of temeprature control valve RTB

Technical data:

series	ZRTP (flanged)						ZTM (screwed)
Diameter DN	15	20	25	32	40	50	15	20	25
flow factor Kvs	3,2	5	8	12	17	24	3,2	4,5	6,3
Pressure PN	25 bar						16 bar
Max. pressure difference	12 bar						12 bar
Max. temperature	180°C						150°C

Flanged connectors PN25, PN ISO 7005-1

Sensors technical data:

Series		TCT
Suitable to valves DN		15	20	25	32	40	50
Time-constant for sensor [s]	Tube	50	45	30	45	40	65
	Spiral	12	10	12	10	10	15
Max. overheat sensor above the set temperature		70°C					50°C
Adjust range		od +20°C do +120°C
Dead zone		<2°C
Hysteresis		<3°C
Capillary lenght [m]		4; 6; 8

Dimensions [mm]:

DN	15	20	25	32	40	50
H1	47,5	52,5	57,5	70	75	82,5
H2	28	31	33	-	-	-
H3	130	138	141	150	151	173
H4	85	90	100	-	-	-
H1c1	190	190	290	290	290	160
H2c2	165	165	250	250	250	340
L1	130	150	160	180	200	230
L2	75	80	85	-	-	-
A	16	16	16	16	16	22
B	26	26	26	26	26	26

The valve RTB
The valve flanged ZRTP
The valve screwed RTBm
The valve screwed ZTM
The sensor TCT
Sensor TCT: 1)tube; 2)spiral; 3)spiral for installation of the wall;
The sensor stainless shield
Stainless shield for the sensor