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** Flanged Type
Butterfly Valves **
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Features:
** Structural design complies with BS 5155.
** Flange drilling acc. BS4504, Section 3.2, ANSI B16.1,
Class125/100 and DIN2501 PN10, PN16 and JIS
B221010K, JISG55277.5K.
** Operating system can be worm gear, pneumatic actuator
and electric actuator. Actuator connection acc.ISO5211.
** Eccentric disc, dual parallel joist structure, Min. flow
obstruction, vibration-free even under high flow rate,
save
energy.
** Stainless steel seat
** Unique sealing ring, with saw-tooth sides, embedded
directly into disc, bolt-free connection, easy on-line
replacement, uniform & tight sealing effect, aspiratory
rubber sealing ring, prolonged service life.
** Unique taper pin, US patent design pin, bolt free &
clearance free connection, eccentric pin maintains
strength of shaft, large contact area, tight for long service,
good exchangeability.
** Excellent sealing effect, leakage free even under \1
degree offset between sealing ring and seat.
** Self-lubrication type shaft bearing, small operation
friction
and no requirement for oil.
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Specification:
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Valve Size (mm)
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DN350-DN2600
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Pressure rating
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PN6
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PN10
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PN16
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Max. working pressure MPa
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0.6
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1
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1.6
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Seat pressure MPa
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0.66
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1.1
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1.76
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Body pressure MPa
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0.9
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1.5
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2.4
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Application medium
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Water, Sewage
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Medium temperature
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+65≧
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Medium flow rate
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+3M/S
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**
Wafer & Lug Type Butterfly Valve **
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Features:
** Structural design complies with BS 5155.
** End connection acc. BS 4504, Section3.2, ANSI B16.1,
class 125/150 and DIN 2501 PN10, PN16 and JIS B2210
10K, JIS G5527 7.5K.
** Operating system can be lever handle, worm gear,
pneumatic actuator and electric actuator. Actuator
mounting flange acc. ISO 5211.
** Face to face dimension acc. ISO 5752.
** Long neck facilitates connection to pipe
Fusion epoxy coating
** Removable seat structure facilities site maintenance.
** Streamline structure, high Cv value
Dual direction flowing
** Unique taper pin
US patent design pin
Large contact area, tight for long service
Good exchangeability
** Excellent sealing effect
** complies with BS 6755, part1, 1986.
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Specification:
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Valve size
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DN50-DN600
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Pressure rating
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PN10/PN16
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Body pressure
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1.5/2.4MPa
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Seat pressure
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1.1/1.76MPa
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Operation temperature
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-50≧-180≧
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Medium
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Water, oil,air
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Material
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Body
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Ductile cast iron, cast iron, aluminum
alloy, S.S.
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Disc
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D.I.+ nickel plated, D.I. + nylon 11
coated, 304 and 316 S.S.
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Seat
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NBR、EPDM
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Stem
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304,316 and 410 S.S.
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Painting
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Epoxy coated
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