Azbil ACTIVAL VY519XH Specifications & Instructions

Motorized Two-Way Valve with Flanged-End Connection
<4-20 mA DC Input with 4-20 mA DC Feedback Output>
„ Overview
ACTIVAL model VY519XH/VY519XK is a series
of motorized two-way valves with flanged-end
connection. The valve and actuator are integrated
in a single unit.
Valve size ranges from DN15 (1/2") to DN80 (3"),
and valve body rating corresponds to JIS 10K.
The actuator has a reversible synchronous motor,
which operates at a low voltage of 24 V AC. Since
the actuator fully closes the valve in case of power
failure, it is suitable for failsafe application.
4-20 mA DC input control signal provides proportional
control in combination with a PLC (e.g., Model R35/R36).
* JIS: Japanese Industrial Standards
PLC: Programmable Logic Controller
„ Features
• Compact and lightweight
Rotary motor actualizes small body and light weight.
• Valve and actuator integrated in a single unit
Pre-assembled body requires no adjustment.
• Dust- and splash-proof structure (IEC IP54)
Installable in an AHU.
Note: Waterproof connectors are required to ensure IP54.
• Valve for water/steam control applicable to high
differential pressure, large Cv value, high rangeability,
and low leakage.
• Durable actuator with low power consumption.
• Equal percentage flow characteristics.
• 4-20 mA DC output available for position feedback.
• Open/close changeover for input signal failure:
Actuator fully opens/closes valve in case that the
control signal is not input to the actuator. (Default: Fully
open)
• Direction changeover of control action:
Open/close action by 4-20 mA DC input signal is
reversely controllable.
Normal action 4 mA: 0 % to 20 mA: 100 %
Reverse action 20 mA: 0 % to 4 mA: 100 %.
(Default: Normal action)
ACTIVAL™
(Spring Return Type Actuator)
(JIS 10K-FC200, -SCS13A)
Specifications/Instructions
• Adjustable dead band*:
Dead band width can be narrowed to more precisely
operate valve actuator.
* Actuator is not operated by input signal changed less than
a certain amount. This amount of change is called dead
band.
• Spring return actuator:
Actuator automatically closes the valve in 0 % position
in case that the power is down.
IMPORTANT • The service life of ACTIVAL operated
w i t h s m a l l d e a d b a n d c a n b e
shortened since the ACTIVAL operates
more frequently with small dead band
than with normal dead band.
• Use shielded cable for the ACTIVAL
with small dead band. Noise may
a ff e c t t h e s i g n a l t r a n s m i s s i o n
causing operation error, otherwise.
• To control ACTIVAL with a third-party
controller, please consult with Azbil
Corporation's sales personnel.
© 2007-2020 Azbil Corporation. All Rights Reserved.
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