AB-6385
6
Parts Identification
Figure 3. Parts identification
(of Model VY6300X0011/VY6300X0021/VY6300X0022)
Figure 4. Parts identification
(of Model VY6300X0031, VY6300X0041, VY6300X0051)
Precautions for Installation
Environment
Select a location where maintenance, inspection, and
manual open/close operation are easily performed. Be
sure to leave enough clearances around the Model
VY6300 for maintenance, inspection, and manual
open/close operation as shown in Figs. 1 and 2.
CAUTION
Although the Model VY6300 can be used in
high humidity environments (max. 95 %RH),
do not immerse it in water.
Although the Model VY6300 can be used
outdoors, be sure to attach the outdoor cover*
so as not to expose the actuator to direct
sunlight.
If the Model VY6300 is installed in a ceiling,
provide an access hole on the ceiling (within
50 cm radius). And, set a drain pan under the
valve.
Note: To order outdoor cover, separate order is required.
Part No. 83165967-001 for DN15 to DN25
Part No. DY3001A1007 for DN32 to DN50
Installation position
Model VY6300 can be mounted onto vertical pipes as
well as to horizontal pipes.
Model VY6300 can be mounted in any position from
upright to sideways. The valve should be installed with
its actuator vertically positioned above the valve.
When Model VY6300 is installed outdoors, it must be
installed in upright position.
Figure 5. Valve and actuator mounting position
Piping
1. When connecting the valve to pipes, hold the valve body
(hexagonal part) with a tool such as a wrench, and
screw the pipe into the valve. (See Fig. 6) Do not apply
excessive torque to the pipe. Refer to Table 1 for the
recommended torque.
Figure 6. Connecting the valve to a pipe
Table 1. Recommended torque for screwing a pipe
Valve size (DN)
15
20
25
32
40
50
Torque (N
m)
40
60
100 120 150
200
2 Do not allow any foreign substance (e.g. metal chips for
cutting/threading pipes, etc.) to go inside the valve and
the pipes.
3. Install bypass pipes and stop valves on the inflow,
outflow sides of the valve.
Improper
mounting
Proper mounting:
Upright
Proper mounting:
Sideways
(for indoor use only)
Torque
Stem
O rings
Seat rings
Valve bodies
O rings
Gasket
Ball
Valve body
Cases
Yokes
Thrust rings
Covers
Stem
Gasket
Valve body
Gland
Ball
