Metal to Metal backed by
specially compounded Teflon.
Leakage
As per ANSI B16.104 - 1976
Teflon seating class IV.
Trim
S.S. AISI 400.
Stem Packing
Self adjusting, spring loaded
Teflon packing.
Characteristics
On-off, normally closed/normally
open.
Working Fluid Pressure
Refer to table below.
Working Temperature
On steam-continuous 180°C
Intermittent 205°C.
ACTUATOR :
Spring return type, high duty Pneumatic Cylinder Actuator.
Cylinder Cover
S.S. AISI 304 Investment casted.
Piston & Yoke
ASTM A216 WCB Investment
casted and plated.
Piston Packing
Spring loaded Teflon seal.
Actuator Spring
IS 4454 Grade III, duly painted..
Actuator Working
3.5 to 6 bar.
Signal Pressure
(Main line pressure dependent).
Operating Cycles per hour
15mm, 20mm, 25mm upto 600
cy/hr. 35mm and 50mm upto 300
cy/hr. (tested on air, on other
fluids, this figure may vary).
Life Expectancy
Over one million cycles (lab
tested in ideal condition).
Air Quality
Lubricated/Non-lubricated or non corrosive gas.
Accessory
Air lock, Solenoid Valve, Filter
Regulator Gauge. Other
accessories available on
application.
Application
For control of steam, air, hot
water, oil, gas, hydraulic oil.
specially where heavy duty
operations are called for,
specially for tyre & tube
building presses, power
generation, atomic energy,
chemical & petrochemical
plants, PSA nitrogen system,
air and gas dryers, gas
generators and others.
Back Pressure
Refer to AVCON.
Instruction Manual
Refer to IM 6412B.
SPECIFICATION TABLE
Catalogue
Number
Size
BSP(F)
Orifice
Size Ø
Flow Factor
Kv
Maximum Working Pressure
Safe Working
Pressure
Actuator
Type
Air
Consumption
Air/Gas
Hot Water
Steam
Inch
mm
mm
M³ /hr.
bar
bar
bar
bar
Cy
litres/cy
6412 B 15
1/2
13
2.8
21
16
16
32
68
0.032
6412 B 20
3/4
15
4.3
21
16
16
32
85
0.057
6412 B 25
1
19
7.0
21
16
16
32
110
0.152
6412 B 35
1½
34
22.7
21
16
16
32
150
0.352
6412 B 50
2
45
36.0
21
16
16
32
180
0.636
OPERATION:
Valve Type 6412B - In normal condition passage
between ‘A’ and ‘AB’ port is closed. On
introduction of air in the actuator ‘A’ port is
connected to ‘AB’ or ‘AB’ port is connected to ‘A’
DIMENSIONS (IN MM)
Catalogue
Number
SIZE
A
B
C
DØ
Weight Kgs
Inch
mm
6412 B 15
1/2
15
85
50
160
100
2.750
6412 B 20
3/4
20
110
66
195
125
5.250
6412 B 25
1
25
120
72
265
152
9.500
6412 B 35
1½
35
150
91
305
195
16.500
6412 B 50
2
50
190
100
425
223
23.500
* OPEN TOLERANCE ± 3 MM ALL OVER.
FLOW DIAGRAMS
* for Normally open design ask AVCON for details.
Note:
Technical specifications details & dimensions are subject to change without prior notice.
Dimensions in the table are approximate subject to final confirmation by AVCON.
