VPro MAC Series User manual

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NIPPON VALVE CONTROLS, INC.
Instruction manual
MA
C
SERIES
B
all
Valve
A
E
E
E
G
T
E
E
L
T
V
SP-1474
Please read this document before using these valves.
GENERAL
This series is suitable for main or bypass valve in piping system.
Valve
AE type A dew condensation prevention valve. (Long neck)
E type For general use.
EG type For high temp. (up to 1 MPa)
TE type A dew condensation prevention valve. (Long neck)
EL type For general use.
TV type For diversion flow and mixing.
PRODUCT CODE
AE type M A C A E T - 5 T T P - -
E type (Brass) M A C E - T - 5 Y Y F - -
(Stainless) M A C E - T - 5 U U T - -
EG type M A C E G T - 5 U U P - -
TE type M A C T E T - 5 T T P - -
EL type M A C E L T - 5 U U T - -
TV type M A C T V T - 5 T T P - -
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
(1) Actuator
MAC
(2)
Valve
AE
E-
EG
TE
EL
TV
(3) Operation
T : Manual handle
(4) Sizing code
- : Hyphen
(5) Connection
5 : Threaded End Rc
(6) Body material
T : SCS13A
Y : C3771BE
U : SCS14A
(7) Ball material
T : SCS13A / SUS304
Y : C3771BE / C3604BD
U : SCS14A / SUS316
(8) Seat material
P : R-PTFE
F : F-PTFE
T : PTFE
(9) Size [mm]
ex. 25 A ® 025
(10) Option
ST : Seat for abnormal
pressure rise
TV
E / EGAE
TE EL

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VALVES SPECIFICATIONS
Water Oil Air, Gas Steam Chemicals Sea water Slurry Negative pressure
AE E EG type
Valve type AE E (Brass) E (Stainless) EG
Design 2 way, Reduced port 2 way, Standard port 2 way, Standard port 2 way, Standard port
Connection Threaded End Rc Threaded End Rc Threaded End Rc Threaded End Rc
Fluid
Max pressure 1 MPa 1 MPa 2 MPa 1 MPa 1 MPa
Size [mm] 015 to 025 015 to 025 032 to 050 008 to 010 015 to 050 015 to 050
Material
Body SCS13A C3771BE SCS14A SCS14A
Ball SUS304 C3604BD C3771BE SUS316 SCS14A SCS14A
Seat R-PTFE F-PTFE PTFE R-PTFE
Stem seal
Packing PTFE - - -
O-ring FKM FKM FKM FKM (For steam)
Note) C3771BE (PLTD) / C3604BD (PLTD)
PRESSURE & TEMPERATURE RATING
AE
The optional for steam fluids.
Valve type Option code O-ring
AE ST Replace (Steam resistant FKM)
E (Brass) E (Stainless) EG
INHERENT FLOW CHARACTERISTIC
AE E / EG
Cv
value
(%)
Valve opening
(%)
Cv
value
(%)
Valve opening
(%)
Range ability 30:1 Range ability 30:1

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VALVES SPECIFICATIONS
Water Oil Air, Gas Steam Chemicals Sea water Slurry Negative pressure
TE EL TV type
Valve type TE EL TV
Design 3 way, Reduced port 3 way, Standard port 3 way, Standard port
Connection Threaded End Rc Threaded End Rc Threaded End Rc
Fluid
Max pressure 1 MPa 1 MPa 1 MPa
Size [mm] 015 to 025 008 to 050 015 to 032 040
Material Body SCS13A SCS14A SCS13A
Ball SUS304 SUS316 SUS304 SCS13A
Seat R-PTFE PTFE R-PTFE
Stem seal Packing PTFE - -
O-ring FKM FKM FKM
PRESSURE & TEMPERATURE RATING
TE
The optional for steam fluids.
Valve type Option code O-ring
TE ST Replace (Steam resistant FKM)
EL TV
INHERENT FLOW CHARACTERISTIC (TE) INHERENT FLOW CHARACTERISTIC (TV)
Cv
value
(%)
Valve opening
(%)
Range ability 20:1
015 to 020 mm 025 to 040 mm
Cv
value
(%)
Valve opening
(%)
Cv
value
(%)
Valve opening
(%)
Range ability 20:1
FLOW PATHS (Position / P1) (Position / P2)
TE EL TV
P1 P2 P1 P2
Note) When a closed path is exposed to high pressure, it may leak slightly to an open path.

OSYEX225-EN
Document is subject to change without notice.
NIPPON VALVE CONTROLS, INC.
1-21-19 Meieki minami, Nakamura-ku, Nagoya 450-0003 JAPAN
TEL: [phone] FAX: [phone]
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INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS
HANDLING & STORAGE
HANDLING
Proper care in handling the valve should be taken to
prevent damage. Do not drop or throw it.
STORAGE
Store the valve in the protected area from dust,
moisture, and direct sunlight. If possible, should be
kept in the original packaging.
CHECKING
Check the product code before installation.
INSTALLATION
PRECAUTIONS
• Flush the pipeline carefully before installing the
valve. Foreign particles, such as sand or pieces of
welding electrode, will damage the ball and seats.
• For valves with specified flow direction (AE / EG) or
with ST / SC option, check the arrows on the product
before piping.
• When the flow path is subjected to a high pressure
from arrow, it may leak slightly to the low pressure
port. (TE / EL / TV)
PIPING
• Using a pipe with too long a thread will damage the
valve.
• If sealing tape or sealant gets inside the valve, the
valve seat leaks or malfunctions.
• To prevent the valve from being damaged by stress,
always hang a wrench on the end of the valve on the
side where the pipe is to be connected when
screwing in the pipe or when unscrewing it after
correcting the angle. (Fig a and b)
Do not apply excessive force to the valve with a pipe
wrench or the like.
• Refer to the recommended tightening torque table
and do not apply excessive torque.
Size [mm] Torque [Nm]
008 to 010 15 to 20
015 25 to 35
020 40 to 50
025 50 to 60
032 60 to 80
040 75 to 85
050 90 to 110
ENVIRONMENT
If there is a possibility that the fluid and drive part
freeze, please take measures to prevent freezing.
POSITIONING
Should be positioned through 90° upward from
horizontal. Provide space around the product to
allow manual operation, inspection and replacement
work.
MAINTENANCE
Do the routine maintenance at least once in half a
year.
Inspection items
• Confirm operation of opening and closing.
• Confirm the fluid temperature or pressure.
• Confirm the leak from valve stem.
TROUBLESHOOTING
Problem Cause Solution
Stop in the
mid position.
• Biting of
valve seat.
• The scale
has adhered
to the valve
ball.
Remove a foreign
object.
Leakage
from
valve body
• Valve cap
get loose.
• Valve body
is damaged.
Replace the valve.
Leakage
from
valve seat
Seat is worn
or damaged.
Leakage
from
valve stem
Stem packing
is worn or
distorted.
For more information contact
NIPPON VALVE CONTROLS, INC. for consultation.
a b