Venturi Valve Overview

Innovative Airflow Solutions for Critical Environments
Venturi Valve Overview
ABOUT VENTURI VALVES
FEATURES AND OPTIONS
Top hospitals, universities, and research facilities across the
• Low and Medium Pressure Constant Volume Valves
globe trust Triatek’s Venturi Valves to protect its occupants
• Low and Medium Pressure Partially Closed Valves
from dangerous airborne pathogens and chemicals.
• Low and Medium Pressure Shut-off Valves
• Valves available in 8”, 10”, 12,” and 14” diameters
Triatek’s Venturi Valves maintain a desired airflow regardless
of duct pressure. This is accomplished with a cone and
spring-loaded piston inside the cone. As the duct pressure
increases, the spring compresses and pushes the cone
further into the shell. This mechanism keeps the volumetric
flow rate constant as air travels through the valve and duct
•
Available with Heresite® or Kynar® coatings
• Constant flow control
• Dependable and easy to install
• Available with fast-acting or standard-acting
electronic actuators
• Fully pressure independent
pressure varies.
• Factory calibrated airflow
Triatek Venturi Valves utilize fast-acting electric actuators
• Low pressure drop
• Field adjustable
that provide a rapid response to changing conditions.
This rapid response ensures the airflow is maintained at
desired levels, which is critical in areas requiring a specific
threshold of air flow in order to protect individuals from
•
Can be ganged for increased flow
• Maintenance-free
• Valves can be calibrated for vertical or horizontal
positioning
airborne chemicals or particulates.
www.triatek.com │sales@triatek.com │Ph: 770-242-1922 │4487 Park Drive Suite A-2 Norcross, GA 30093 │ v.041415
Venturi Valve Overview
DETAILED OPTIONS
Heresite Coated Venturi Valve
Aluminum or Stainless Steel - Typical Venturi Valves are made of alu-
minum, but stainless steel is the material of choice for environments with
highly corrosive or dangerous chemicals in the air stream.
Heresite - Heresite is a brown phenolic coating baked on exposed alumi-
num to minimize corrosion. Heresite coatings provide resistance to a wide
range of corrosives (reference the Triatek website for a full list of coatings).
Kynar/PVDF - Kynar/PVDF provides excellent chemical resistance, high
levels of purity, and superior mechanical properties. It is often used as a
lining or protective barrier in applications in which Heresite is not sufficient.
Thermal Insulation - Often used for supply valves, thermal
insulation decreases energy costs by reducing thermal losses.
Constant Volume or Actuated - Constant Volume Venturi Valves are used
for biosafety cabinets, constant volume fume hoods, ventilated cabinets,
and outside air regulation. Actuated valves are used in systems that adapt
to a dynamic environment.
Constant Volume
Partially Closed
Medium or Low Pressure - Medium Pressure Venturi Valves (0.6” to 3”
wc) allow for higher flows for a given valve size, while Low Pressure Venturi
Valves (0.3” to 3” wc) require a smaller pressure drop across the valve for
maintaining a constant flow.
Partially Closed or Shut-Off - Partially Closed Venturi Valves allow for
higher flows for a given valve size, while Shut-Off Venturi Valves allow the
valve to close completely for equipment not
currently in use, leading to energy savings.
Fully Actuated
Shut-Off
Horizontal or Vertical - Customers should specify how the valve will be
situated in the duct work, as vertically mounted valves are calibrated differently.
Size - Triatek offers 8”, 10”, 12” and 14” diameter valves for a variety of
applications.
Ganged Valves - Valves can be ganged together to increase flow.
Ganged Venturi Valves
Triatek Venturi Valves are available in various sizes to fit
the needs of your specific project.
www.triatek.com │sales@triatek.com │Ph: 770-242-1922 │4487 Park Drive Suite A-2 Norcross, GA 30093 │ v.041415
Venturi Valve Overview
Special Notes:
Specifications
Aluminum Shell Thickness
Stainless Steel Shell Thickness
Accuracy
Internal Assembly Construction Materials
Individual Valves
0.060”
0.040”
+/- 5%
Stainless steel shaft and struts with Teflon® bearings
8”
10”
12”
Inside Diameter
in.
mm
7.75
197
9.74
247
11.68
297
Outside Diameter
in.
mm
7.88
200
9.87
251
11.80
300
Length
in.
mm
23.00
584
26.00
660
26.80
681
14”
13.62
13.75
29.87
Unit
Size
346
349
Clearance
in.
14
16
18
759
22
Height
mm
356
406
457
Min.
cfm
35
50
90
559
Flow
L/s
17
24
42
175
83
Max. Flow1
cfm
L/s
700
330
1000 472
1500 708
2100
- Other options are available but
not shown. Contact sales for more
information.
- Flow rates are subject to change
without notice.
991
Ganged Valves
Unit Size
& Number
10”
12”
14”
(Valves can be ganged together in any combination up to 6 valves.)
Length
Width
Collar Height Clearance Height
in.
mm
in.
mm
in.
mm
in.
mm
Min. Flow
cfm
L/s
Max Flow1
cfm
L/s
2
3
4
6
2
3
4
6
2
30.00
30.00
30.00
30.00
30.80
30.80
30.80
30.80
33.87
762
762
762
762
782
782
782
782
860
22.63
33.75
22.50
33.75
26.75
40.00
26.75
40.00
32.15
575
857
572
857
679
1016
679
1016
817
11.44
11.44
22.88
22.88
13.50
13.50
27.00
27.00
16.00
291
291
581
581
343
343
686
686
406
17
17
34
34
19
19
38
38
24
432
432
864
864
483
483
965
965
610
100
150
200
300
180
270
360
540
350
47
71
94
142
85
127
170
255
165
2000
3000
4000
6000
3000
4500
6000
9000
4200
944
1416
1888
2832
1416
2124
2832
4248
1982
3
4
33.87
33.87
860
860
48.30
32.15
1227
817
16.00
32.00
406
813
24
48
610
1219
525
700
248
330
6300
8400
2973
3964
Triatek Venturi Valve Flow Rates (CFM)
STANDARD VENTURI VALVES
Size
Low Pressure
SHUT-OFF VENTURI VALVES
Medium Pressure
Low Pressure
Min
Max
Min
Max
Min
8”
35
500
35
700
10”
50
550
50
12”
90
1050
90
14”
175
1400
175
2100
Medium Pressure
Max
Min2
Max
0
400
0
600
1000
0
450
0
850
1500
0
750
0
1100
2
Product specifications are subject to change without notice. Triatek is a registered trademark of Triatek LLC. 062812
Part Number Guide
V V - 2 - 1 0 - A - N - FA - P C - N - H - M
# OF VALVES
0 = 1 Valve
2 = 2 Valves
3 = 3 Valves
4 = 4 Valves
DIAMETER
8 = 8”
10 = 10”
12 = 12”
14 = 14”
►
SHELL/COATING
A = Aluminum/None
H = Aluminum/Heresite
K = Aluminum/Kynar
S = 316 Stainless Steel/None
PRESSURE RANGE
►
ACTUATOR
FA = Fast-acting
CV = Constant Volume
S = Special Order Actuator3
►
► M = Medium
L = Low
ORIENTATION
► H = Horizontal
V = Vertical5
►
THERMAL INSULATION
N = No Insulation
I = Thermal Insulation
►
TYPE
PC = Partially Closed
SS = Standard Shut-off
FS = Full Shut-off4
► COUPLING
►
Medium pressure partially closed Venturi valve flows shown.
Shut-off valves do not maintain +/-5% beyond standard valve minimum flow.
Belimo and Siemens actuators are available upon request.
1
2
N = No Coupling
F = Flanged6
D - Duct Band Clamp
3
4
Flows for non-stainless medium pressure, partially closed valves. See stainless steel Venturi valve data sheet for more information.
5
Vertical “up” low pressure valves maintain flow from 0.4” to 3” wc.
Flanged valves cannot be ganged.
6
www.triatek.com │sales@triatek.com │Ph: 770-242-1922 │4487 Park Drive Suite A-2 Norcross, GA 30093 │ v.041415