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    3/2 Way Pneumatic Piston Operated Mixing or Diverting Valves
With Cylinder Actuator, For On-Off Application
(Rust Free Design)		 DATA SHEET
6616E-NORMALLY ‘A’ PORT CLOSED
6619E-NORMALLY ‘B’ PORT CLOSED
   
SPECIFICATIONS :
Size 15MM (1/2”) to 50mm (2”).
CONSTRUCTION :
Body and Bonnet Investment casted ASTM-A, 351CF8 (St.St. 304)/CF8M (St.St. 316).
Pressure Temperature Rating As per ANSI class 300.
End Connections Standard BSP(F)/NPT(F).
Seating Soft seated Teflon backed by EPDM. Optional-VITON/EPDM, Buna Nitrile.
Leakage As per ANSI B16.104 - 1976 Teflon seating class IV. For other soft seating class VI Drop
Tight/ Bubble Tight.
Trim S.S. AISI 304/316.
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 155°C, Intermittent 180°C with Teflon seating, Buna Nitrile 80°C, EPDM 135°C, VITON 180°C.
ACTUATOR
Spring return type, Pneumatic Cylinder.
Cylinder Cover S.S. AISI 304 (pressing).
Cylinder Flange Pressure die casted, aluminium silicon alloy, solution treated and hard anodised.
Piston Steel (pressing).
Piston Packing Buna Nitrile
Actuator Spring IS 4454 Grade III, duly painted..
Actuator Working
Signal Pressure		 3.5 to 6 bar, (refer to graph).
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.
Maximum Operating Pressure Differential Refer to graph.
Accessory Air lock, position indicating limit switch box, solenoid valve, filter regulator gauge. Other accessories available on application.
Application For control of air, water, oil, gas, steam in textile, power generation, atomic energy, paper & pulp, chemical, petro chemical industries, PSA nitrogen system, air dryer, gas generator and in process plants.
Back Pressure Refer to table below or 2.5 bar.
Instruction Manual Refer to IM 6616E/6619E.
 
SPECIFICATION TABLE
Catalog
Number 		Size
BSP (F)		 Orifice Size Flow Factor Kv Maximum *
Working Pressure		 Safe Working
Pressure		 Actuator Type

Air
Consumption

Inch mm mm m³/hr bar bar Cy litres/cy.
6616 E 15
6619 E 15
 1/2 15 15 3.3 10 16 70 0.150
6616 E 20
6619 E 20
3/4 20 18 4.7 10 16 70 0.150
6616 E 25
6619 E 25
1 25 23 8.5 10 16 70 0.160
6616 E 35
6619 E 35		 1½ 35 36 22.5 10 16 100 0.310
6616 E 50
6619 E 50		 2 50 45 35.0 7 16 100 0.326
   
* Inlet Pressure at ‘A’ port or ‘B’ port.
 
1
 
OPERATION :
Valve Type 6616E - In normal
condition, ‘A’ port is closed and
‘AB’ port is connected to ‘B’ or
‘B’ port is connected to ‘AB’ port.
on receiving pilot pressure, ‘A’
port is connected to ‘AB’ or ‘AB’
port is connected to ‘A’ closing
port B.
Valve Type 6619E - Normally
‘B’ port is closed and ‘A’ port is
connected to ‘AB’ or ‘AB’ port is
connected to ‘A’. On receiving
signal ‘A’ port is closed and ‘B’
port is connected to ‘AB’ or ‘AB’
port connected to ‘B’.		 Mixing :
Valves can be used for introducing
two different fluids (mixing)
through two different ports to
common port ‘AB’.
Diverting :
One fluid coming through port ‘AB’
can be diverted to ‘A’ port or ‘B’
port.
DIMENSIONS (IN MM)
CATALOGUE
NUMBER		 SIZE A B C D WEIGHT
(Kgs)
Inch mm
6616 E 15
6619 E 15		 1/2 15 85 50 185 103.5 2.275
6616 E 20
6619 E 20		 3/4 20 110 66 194 103.5 3.000
6616 E 25
6619 E 25		 1 25 120 72 204 103.5 3.500
6616 E 35
6619 E 35		 1½ 35 150 91 285 138.0 8.750
6616 E 50
6619 E 50		 2 50 190 100 292 138.0 12.750
* OPEN TOLERANCE ± 3 mm ALL OVER
 
 
Note:
Technical specifications details & dimensions are subject to change without prior notice.
Dimensions in the table are approximate subject to final confirmation by AVCON.

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