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Please read this manual before installation and use.
GENERAL
Damper body and Disc made by precision processing
ensure reduced leakage from damper seat.
This series can be used at fluid temperatures ranging from -
40 °C to 550 °C.
Manual operation
Lever
Gear
Damper
WT : For Wafer (JIS 5K)
PRODUCT CODE
WT type (Without seat)
(With SUS316 seat)
(1) Actuator
MA-
(2) Damper
WT
(3) Manual operation
L : Lever
G : Gear
Instruction manual
MA- SERIES Butterfly Damper WT
M A - W T
M A - W T
(1)
(2) (3) (4) (5) (6) (7) (8)
(4) Sizing code
- : Hyphen
(5) Connection
2 : JIS 5K
(6) Body material
T : SCS13A
(7) Packing material
G : Expansion graphite
-
2 T G 0 -
-
2 T G S -
(9)
(8) Seat material
0 : (Zero) None
S : SUS316
(9) Size [mm]
ex. 80 A ® 080
1/5
OSYWT225-EN
SP-1474
-
-
(10)
(10) Option
XM : Heat insulation
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Summary of Contents for VPro MA Series
- Page 1 OSYWT225-EN Instruction manual MA- SERIES Butterfly Damper WT SP-1474 Please read this manual before installation and use. GENERAL Damper body and Disc made by precision processing ensure reduced leakage from damper seat. This series can be used at fluid temperatures ranging from - 40 °C to 550 °C.
- Page 2 OSYWT225-EN DAMPER SPECIFICATIONS Water Air, Gas Steam Chemicals Sea water Slurry Negative pressure Damper type WT (Without seat) WT (With SUS316 seat) Design 2-way, Wafer 2-way, Wafer Connection JIS Flanges 5K JIS Flanges 5K Fluid Max pressure 20 kPa 20 kPa Size [mm] 040 to 250 300 to 400...
- Page 3 OSYWT225-EN INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS MANUAL LEVER DIMENSIONS GEAR DIMENSIONS OPEN SHUT φK Handle Damper size [mm] Lever [mm] Damper size [mm] Gear handle [mm] Hex bolt Actuator M5×15 MAG-F07 M5×15 M6×15 M8×15 HANDLING OF MANUAL LEVER HANDLING OF GEAR •...
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Page 4: Installation
OSYWT225-EN INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS HANDLING & STORAGE TIGHTEN THE GLAND NUTS HANDLING • Check that there is no leakage from the gland Do not drop or throw the product as it may break. packing. STORAGE • If it leakage, tighten gland nuts by alternately. Store away from dust, moisture and direct sunlight. -
Page 5: Troubleshooting
OSYWT225-EN INSTALLATION, OPERATION & MAINTENANCE INSTRUCTIONS TROUBLESHOOTING Problem Cause Solution Stop in the There is a Remove a foreign mid position. foreign object object. in the damper. Damper is Replace the damper. distorted. Leakage Gland packing Tighten the gland nut. from is worn or damper...
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