Control valves ZRES with electric actuator BELIMO

Control valves with electric actuators can be used in heating and industrial installations. There are an elements of regulatory systems, automation and remote control. Control valves are ideal for the regulation of cold and hot water up to temperature 150°C and non-flammable gases up to 80°C. The regulation of water vapor should be applied flanged type valves ZRES.

Key features:

• equal characteristic
• overall tightness of the closure
• automatic adaptation of the actuatorr,
• adjust time of the actuator for opening or closing
• the possibility of programming the control signal

Construction:

Electrically actuator valves are composing from two connected components:
- valve: valve body (1), valve-seat (2), valve-head (3), valve spindle (4)
- actuator: console (5), pawl (6), supply line (8), manual drive (9).

Installation:

The valve should be mounted on a horizontal or vertical pipeline. The direction of flow must be in accordance with an arrow on the body. To ensure the correct operation of the valve - installation must be protect by the filter or strainers. Electric actuator do not should be directed downward.

Actuator technical data:

actuator series	NV230-3	NV24-3	NV274-MFT	NVF24-MFT	NVF24-MFT-E
signal	3-point		0...10V DC (adjusted 0...32V or 3-point
power supply	230V AC 50/60Hz	24V AC 50/60Hz; 24V DC
voltage	198...264V AC	19,2...28,8V AC; 21,6...28,8V DC
signal range	-		2...10V DC adequate to move 0...100% (adjusted)
return signal	-		2...10V DC @0,5mA (adjusted)
emergency setting	-			opening	closing
power consumption	6 W	3 W		5,5 W
max shift	20 mm
manual drive	self-returned
time of action	4,5 lub 7,5 s/mm		7,5 s/mm (adjustet 4,5...7,5 s/mm)
emergency time of action	-			<1,5 s/mm
position indicator	mechanical
degree of protection	IP54
environment temperature	0...+50°C

Valves technical data:

valve series	ZRES (flangeds)						ZRESm (pipe)
diamenter	15	20	25	32	40	50	15	20	25
Kvs factor	1,5	2,5	3,5	7,5	12	17	1,0	1,5	2,5
	2,0	3,5	5,0	10	15	20	1,5	2,5	3,5
	2,5	5,0	7,5	12	17	24	2,0	3,5	5,0
pressure PN	25 bar						16 bar
characteristics of the regulation	equal n=3,22						equal n=3,22
Max. permissible difference pressure on the valve [bar]	12			10	6	4	12
max. temperature flow factor	150°C						150°C
max shift [mm]	15			20			10

flangeds connector PN25, PN-ISO 7005-1

Dimensions:

ZRES - flanged	ZRESm - screwed

DN	15	20	25	32	40	50
H1	47,5	52,5	57,5	70	75	82,5
H2	28	31	33	-	-	-
H3	286	294	294	306	309	329
H4	256	260	270	-	-	-
L1	130	150	160	180	200	230
L2	75	80	85	-	-	-