SRV Series Ductile Cast Iron Intelligent Balance Valve

SRV series intelligent balance valve is integrated with sensors, intelligent actuator and regulation valve. It is applicable to central air conditioning system and heating system. The regulating valve receives the control signals from PLC, DDC and other controllers, compares with the real time values from
local sensors (temperature sensor, pressure sensor, ﬂow sensor, and etc.),and make judgment and adjustment accordingly. Thus it realizes accurate control of the temperature, pressure, ﬂow or energy.

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Features Specifications of Actuator Specifications of Valve Body Installation Diagram Application

Features

Remote controllable via upper computer
Programmable with RS-485, automatic opening adjustment
Automatic valve status detection, anti-seize design
Manual operation available

IP67, high protection level. IP68 is customizable

90° rotation, quick opening/closing, good adjustment
performance

Push type terminal block, easy for wiring
Bluetooth available, monitoring via APP on mobile phone

Specifications of Actuator

Torque	50Nm
Power Supply	24VDC
Rated Current	2.4A
Sensitivity	±1.0%
Basic Deviation	+1.0% (of valve stroke)
Frequency	50/60 Hz
Dperating Time	20s (0 load, from fully clo sed to fully open)
Cable	0.5mm2 ~ 1mm2
Communication	RS-485/ M-bus
Protocol	Modbus/188
Control Mode （Only one mode can be selected at the same time)	1 Return temperature control (Basic) 2 Differential temperature control 3 Pressure control 4 Differential pressure control 5 Flow control 6 Energy control
Precision of Temperature Control	+1.0°C
Cooling/heating Changeover	Automatic (cooling when the water inlet temperature is <35 °C,otherwise heating)
Temperature Sensor	DS18B20
Wireless Control	Bluetooth, APP (for Android only)
Manual Operation	Available
Ambient Temperature	25°C ~ +65 °
Protection Degree	IP67 (IP68 customizable)

Specifications of Valve Body

Nominal Pressure	PN16
Applicable Medium	Hot/cool water, ethylene glycol aqueous solution with concentration s50%
Adjustable Ratio	100:1
Flow Characteristics	Equal percentage
Leakage Rate	No visible leakage
Stroke	Angular stroke (90 ")
Medium Temperature	10°C - 20°C
Mounting	On return water side
Material of Main Parts	Valve Body	Ductile Cast Iron（DN40 -DN150）
	Ball	SS304
	Seat	PTFE + Graphite
	Stem	SS304
	O Ring Sealing	EPDM