Price Antec Controls VENTURI VV Series User manual

VENTURI VALVE
VV Series
MANUAL v113

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TABLE OF CONTENTS
INTRODUCTION ...............................................................................................................................................................................1
General ........................................................................................................................................................................................1
Safety Precautions.......................................................................................................................................................................1
Caution to Contractors.................................................................................................................................................................1
Product Overview........................................................................................................................................................................2
Technical Specifications ..............................................................................................................................................................2
Airflow Ranges ............................................................................................................................................................................2
GETTING STARTED WITH THE VV...................................................................................................................................................3
Receiving Inspection ...................................................................................................................................................................3
In the Box ....................................................................................................................................................................................3
Construction Options...................................................................................................................................................................5
INSTALLATION & MOUNTING INSTRUCTIONS............................................................................................................................10
Installing the Venturi Valve ........................................................................................................................................................10
Constant Volume Valve Reassembly.........................................................................................................................................12
VALVE ACCESSORIES ...................................................................................................................................................................13
Hot Water Coils (VVHWC) .........................................................................................................................................................13
Electric Coils (VVEC) ..................................................................................................................................................................15
Silencer (VVSIL) .........................................................................................................................................................................17
Valve Companion Connections (VCT) ........................................................................................................................................18
Valve Installation Tape (VIT).......................................................................................................................................................21
Valve Pressure Switch (VPS) .....................................................................................................................................................22
Valve Actuator ...........................................................................................................................................................................24
Valve Relay ................................................................................................................................................................................25
BALANCING ...................................................................................................................................................................................26
Variable Volume Venturi Valve...................................................................................................................................................26
Constant Volume Venturi Valve.................................................................................................................................................27
TROUBLESHOOTING.....................................................................................................................................................................28
Venturi Valve Troubleshooting...................................................................................................................................................28
Electric Coil Troubleshooting.....................................................................................................................................................28
Replacement Parts ....................................................................................................................................................................29
Technical Support......................................................................................................................................................................29

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INTRODUCTION
General
In this manual, you will find information regarding:
•Venturi Valve (VV) specifications
•How to install the VV with Constant Volume, Variable
Volume, and Two Position (2P) Switch
•Detailed description of all options available for each setup
Safety Precautions
1. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes
and standards, including fire-rated construction.
2. When cutting or drilling into wall or ceiling, do not damage
electrical wiring and other hidden utilities.
3. Use this unit only in the manner intended by the
manufacturer.
4. Before servicing or cleaning unit, switch power off at
service panel and lock service panel to prevent power from
being switched on accidentally.
5. Protect flammable materials nearby when brazing, use
flame and head protection barriers where needed. Always
have a fire extinguisher ready.
6. The manufacturer assumes no responsibility for personal
injury or property damage resulting from improper handling,
installation, service or operation of the product.
Caution to Contractors
Venturi Valves are not intended for use as temporary heat or
ventilation sources during building construction. The units are
not designed nor equipped to operate in a dusty construction
environment. Internal parts can become coated in construction
dust, resulting in loss of calibration and excess wear on the
product which in turn can contribute to reduced life.
For local area support, please
contact your local Antec Controls
Representative
For more information visit
www.AntecControls.com
This mark indicates an important point for the proper
function of the Venturi Valve. Improper setup may
cause unit failure. Pay close attention to all caution
points throughout this manual.

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Product Overview
Venturi Valves are mechanically pressure independent airflow control valves designed specifically for room pressure and fume
hood control applications.
Some of the key features include:
•Electronic airflow feedback prevents dust/lint contamination from deteriorating airflow reading
•Characterized using NVLAP-accredited airflow stations
•Medium or low-pressure operation
•Operating pressure feedback
Technical Specifications
Environmental (Operating)
50°F to 122°F (10°C to 50°C), 5% to 95% R.H. (non-condensing)
Environmental (Storage)
-22°F to 122°F (-30°C to 50°C), 0% to 95% R.H. (non-condensing)
Valve Body
14 Ga Aluminum
Cone
16 Ga Aluminum
Shaft
Teflon Coating 316 Stainless Steel
Shaft Supports
316 Stainless Steel
Shaft Bearings
Wear-resistant with Teflon additive
Airflow Ranges
Standard Valve Body Venturi Valves
Unit
Size
Medium Pressure
(0.6 to 3.0 in.w.c.)
Low Pressure
(0.3 to 3.0 in.w.c.)
Minimum
CFM (L/s)
Maximum
CFM (L/s)
Minimum
CFM (L/s)
Maximum
CFM (L/s)
108
35 (17)
700 (330)
35 (17)
500 (236)
110
50 (24)
1000 (472)
50 (24)
550 (260)
112
90 (42)
1500 (708)
90 (42)
1200 (566)
114
200 (94)
2500 (1180)
200 (94)
1400 (660)
210
100 (48)
2000 (944)
100 (48)
1100 (519)
212
180 (84)
3000 (1416)
180 (84)
2400 (1132)
214
400 (188)
5000 (2360)
400 (188)
2800 (1320)
312
270 (126)
4500 (2124)
270 (126)
3600 (1699)
314
600 (282)
7500 (3540)
600 (282)
4200 (1980)
412
360 (168)
6000 (2832)
360 (168)
4800 (2264)
414
800 (376)
10000 (4720)
800 (376)
5600 (2640)
Shutoff Valve Body Venturi Valves
Unit
Size
Medium Pressure
(0.6 to 3.0 in.w.c.)
Low Pressure
(0.3 to 3.0 in.w.c.)
Minimum
CFM (L/s)
Maximum
CFM (L/s)
Minimum
CFM (L/s)
Maximum
CFM (L/s)
108
35 (17)
600 (283)
35 (17)
400 (188)
110
50 (24)
850 (401)
50 (24)
550 (260)
112
90 (42)
1300 (614)
90 (42)
900 (424)
114
200 (94)
1500 (708)
-
-
210
100 (48)
1700 (802)
100 (48)
1100 (519)
212
180 (84)
2600 (1227)
180 (84)
1800 (840)
214
400 (188)
3000 (1415)
-
-
312
270 (126)
3900 (1842)
270 (126)
2700 (1260)
314
600 (282)
4500 (2167)
-
-
412
360 (168)
5200 (2454)
360 (168)
3600 (1680)
414
800 (376)
6000 (2830)
-
-
NOTES:
1. Factory calibrated controls must be selected within the flow range limits.
2. When setting the flow, the value must be greater than the minimum setting and within the range limits. Selection of air flow
below the listed values is not recommended. Stability and accuracy may not be acceptable at lower than recommended air
flow limits.
3. Pressure ranges are measured across valve static pressure ports.
4. Standard Valve Body Venturi Valves are available in Horizontal, Vertical Up, and Vertical Down orientations.
5. Shutoff Valve Body Venturi Valves are only available in Horizontal orientations.
6. Size 114, 214, 314, and 414 Shutoff Venturi Valves are only available in Medium Pressure.

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GETTING STARTED WITH THE VV
Receiving Inspection
After unpacking the assembly, check carefully for shipping damage. If any damage is found, report it immediately to the
delivering carrier. During unpacking and installation, do not handle the valve by the inlet cone shaft or center shaft support
bracket. Damage may result from improper handling.
In the Box
For each of the available options, the order includes the following components outlined in this section.
Constant Volume (CV) Venturi Valve
CV valves will ship with the below components.
Component
Quantity
Description
Valve Body
1, 2 or 3
Venturi Valve
NOTE: Dual and Triple CV valves will be shipped as
a ganged assembly. Each individual valve body will
come with its own Constant Volume Assembly.
Constant Volume
Assembly
1, 2 or 3
Single constant volume assembly.
NOTE: The Constant Volume Assembly must be field assembled after installation.
Variable Air Volume (VAV) Venturi Valve
VAV valves will ship with the below components.
Component
Quantity
Description
Valve Body
1, 2 or 3
Venturi Valve
NOTE: Dual and Triple VAV valves will be shipped
as a ganged assembly.
Green Pressure
Tubing
1
The low-pressure tubing comes factory installed
connected to the valve’s control system and a
connector tee for field verification.
Red Pressure
Tubing
1
The high-pressure tubing comes factory installed
connected to the valve’s control system and a
connector tee for field verification.
Actuator
1 or 2
The actuator is factory mounted on the mounting
bracket and shaft.
NOTE: Triple valves will be shipped with 2
actuators.
Controls Enclosure
1
Enclosure for the controls system.
Controller
1
PACE, FHC, or LMX are factory installed in the
control’s enclosure.
CAUTION
Do not tamper with the linkage assembly as the valve is shipped
factory calibrated. Never carry or lift the valve by the linkage assembly
support brackets, or control box.

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Two Position (2P) Venturi Valve
2P valves will ship with the following components.
Component
Quantity
Description
Valve Body
1, 2 or 3
Venturi Valve
NOTE: Dual and Triple VAV valves will be shipped
as a ganged assembly.
Green Pressure
Tubing
1
The low-pressure tubing comes factory installed
connected to the valve’s control system and a
connector tee for field verification.
Red Pressure
Tubing
1 The high-pressure tubing comes factory installed
connected to the valve’s control system and a
connector tee for field verification.
Actuator
1 or 2
The actuator is factory mounted on the mounting
bracket and shaft and is calibrated to the desired
Minimum and Maximum Airflow.
NOTE: Triple valves will be shipped with 2
actuators.
Controls Enclosure
1
Enclosure for the controls system.
Relay 1 PACE, FHC, or LMX are factory installed in the
control’s enclosure.

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Construction Options
Below is an outline of some of the key options that are available when selecting and ordering Venturi Valves. These options will
affect its available flow range, how the valve is installed and under what system conditions it must operate.
See the VV Product Submittal on AntecControls.com for specifications and dimensions of each option shown below.
Valve Size
Venturi Valves are available in the following size options. The size selected below will be a factor in determining the airflow
range of the valve.
8 inches
Model:
Features:
VV-108
•Available in Single construction only
10 inches
Model:
Features:
VV-110, VV-210
•Available in Single and Dual construction
•Dual construction is provided in welded ganged unit and no additional field assembly is required
12 inches
Model:
Features:
VV-112, VV-212, VV-312, VV-412
•Available in Single, Dual, Triple and Quad construction
•Dual and Triple construction is provided in welded ganged unit and no additional field assembly is required
•Quad construction is provided as two dual valves and field assembly is required
14 inches
Model:
Features:
VV-114, VV-214, VV-314, VV-414
•Available in Single, Dual, Triple and Quad construction
•Dual and Triple construction is provided in welded ganged unit and no additional field assembly is required
•Quad construction is provided as two dual valves and field assembly is required

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Pressure Range
Venturi Valves can be ordered for either Medium or Low Pressure operation.
This selection will affect the operating airflow range of the valve.
Medium Pressure
Model:
Features:
VV-M
•0.6 to 3.0 in.w.c. differential pressure range
•Offers a large airflow capacity with high turndown
Low Pressure
Model:
Features:
VV-L
•0.3 to 3.0 in.w.c. differential pressure range
•Provides potential for energy savings due to lower pressure requirement
Body Type
Venturi Valves are available in Standard and Shutoff body types. Shutoff Venturi Valves offer the same mechanical pressure
independence between their specified airflow ranges, with an additional position to provide 0 CFM.
Standard Valve Body
Model:
Features:
VV-[Blank]
•Valve provides mechanical pressure independence from
Min. Flow to Max. Flow
•Smooth valve body with no contact between the valve
body and cone assembly
Shutoff Valve Body
Model:
Features:
VV-SSO
•Valve provides mechanical pressure independence from
Min. Flow to Max. Flow
•Valve provides 0 CFM when overridden to the minimum
position
•Metal on metal seal between the valve body and cone
assembly
CAUTION
Ensure that the Venturi Valve is in the
specified Pressure Range before balancing
the valve.

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Valve Orientation
Venturi Valves are available in Vertical Up, Vertical Down, and Horizontal
orientations. An airflow direction label is on the valve and indicates the
direction of airflow and the valve’s orientation.
Horizontal
Model:
Features:
VV-H
•Airflow travels horizontally through the valve
•For optimal performance, the valve should be mounted +/- 10°
from horizontal
Vertical Up
Model:
Features:
VV-VU
•Airflow travels up through the valve
•For optimal performance, the valve should be mounted +/- 10°
from vertical
Vertical Down
Model:
Features: VV-VD
•Airflow travels down through the valve
•For optimal performance, the valve should be mounted +/- 10°
from vertical
CAUTION
Do not install valves in an orientation other
than what is indicated on the valve. Valve
performance is not guaranteed in other
orientations.

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Control Type
The control type specifies whether the valve is provided with controls and an actuator or is a mechanically fixed assembly.
Constant Volume
Model:
Features:
VV-CV
•Mechanical linkage to lock the valve in place
•If airflow adjustments are required, they are done manually
•Mechanical linkage must be assembled in the field prior to
turning on the air handler
•No controls are required
•
Optional: Valve Pressure Switch (VPS) can be included for
alarming
Variable Volume
Model:
Features:
VV-VAV
•Actuator controls the valve’s position to control to desired
airflow setpoint
•Available with factory provided PACE, FHC or LMX
•Factory provided actuator is calibrated and wired
•Linkage is set to provide full range of airflow control
Connection Type
The connection type of the valve will determine how the valve is installed in the ductwork. See the Installation Instructions
section for more detail on the installation process.
Slip
Model:
Features:
VV-SL
•Venturi Valve does not contain any mounting holes
•Single sizes are designed to slip into nominal sized round
ductwork
•Dual, Triple and Quad sizes are designed to slip over
rectangular ductwork
NOTE: See the Installing the Venturi Valve for detailed
installation instructions.
Flanged
Model:
Features:
VV-FL
•Venturi Valve comes with pre-welded mounting flange
NOTES:
•See the Installing the Venturi Valve for detailed installation
instructions.
•See the VV Product Submittal for hole pattern and
dimensions.
Coating
Venturi Valves are available in four different protective coating options depending on the application.

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Aluminum
Model:
Features:
VV-AL
Aluminum valve body with Stainless Steel (SS) internal
hardware
NOTE: Can be mounted using sheet metal screws.
Phenolic – Class 1
Model:
Features:
VV-P1
Phenolic coated valve body with Stainless Steel (SS) internal
hardware
Scratches and holes can compromise the coating
NOTE: Do not use sheet metal screws to install.
Phenolic – Class 2
Model:
Features:
VV-P2
Phenolic coated valve body with PVDF coated internal
hardware
Scratches and holes can compromise the coating
NOTE: Do not use sheet metal screws to install.
PVDF Kynar
Model:
Features:
VV-K
Kynar coated valve body with PVDF coated internal
hardware
Scratches and holes can compromise the coating
NOTE: Do not use sheet metal screws to install.

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INSTALLATION & MOUNTING INSTRUCTIONS
Installing the Venturi Valve
The instructions below detail general installation of a Venturi Valve without the use of any valve accessories. When using
accessories with the Venturi Valve, please see the appropriate installation detailed for the accessory being used in the Valve
Accessories section.
Before Installation
General Installation Notes
1. Ductwork to be supported within eighteen inches (18”) of the Venturi
Valve unless otherwise specified.
2. Access doors are not required.
3. Leave eight inches (8”) of free space in all directions of the controls
enclosure to facilitate future access to the controls.
4. During operation, the center shaft of the Venturi Valve may extend past
the inlet or discharge of the valve. Ensure that a minimum of six inches
(6”) of duct is clear of any obstructions or obstacles (i.e. duct stiffeners)
from the valve inlet and discharge.
Enclosure Orientation
•
Visually inspect the valve for damage
oDamage on the inlet of the valve can be detrimental to performance
oDamage to the coating on fume hood valves can lead to corrosion
•Ensure the packing material has been removed from the inside of the
valve body.
•Inspect the tamper proof paint to ensure it has not been removed. Tamper
proof paint can be found on:
oMechanical linkage for constant volume and variable volume valves
oActuator for variable volume valves
oPotentiometer for VAV Venturi Valves
•Ensure the specification label for the valve matches the intended
installation location.
Supply (SAV) or General Exhaust (GEV) Applications
When installing a Venturi Valve in SAV or GEV applications, it is acceptable to install the
Venturi Valve with the control’s enclosure mounted in any orientation around the
circumference of the duct.
Fume Hood Applications
In fume hood applications, or in conditions that may cause condensation inside the
ductwork, the enclosure should not be mounted within +/- 30 degrees from straight down.
CAUTION
Do not screw into Phenolic or Kynar coated
valves. Screws will compromise the
Venturi Valve body and its resistance to
corrosion. Warranty will be void if
screws are used.

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Slip-Connection Venturi Valve Mounting Instructions
The instructions below are detailed for Aluminum Venturi Valves only. Do not use screws for Phenolic or Kynar coated valves.
Flange-Connection Venturi Valve Mounting Instructions
STEP 1
Mount the Venturi Valve by slipping both the inlet and the discharge one inch (1”) into the
appropriately sized ductwork.
STEP 2
Fasten the Venturi Valve to the ductwork using six (6) sheet metal screws per slip
connection.
STEP 3
Seal the ductwork using duct sealer.
STEP 1
Align the duct flange holes with the venturi flange holes and fasten using a bolt, lock washer
and nut. Fasten every hole to reduce airflow leakage.
NOTE: It is recommended to use a duct sealant or gasket between the valve flange and the
ductwork flange.
CAUTION
Instructions above are for slip valves without drawband
clamps. For information on installing slip valves with
drawband clamps, please see the Drawband Clamps
Installation section of this manual.
CAUTION
Instructions above are for flanged valves without
companion flanges. For information on installing flanged
valves with companion flanges, please see the Companion
Flanges Installation section of this manual.

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Constant Volume Valve Reassembly
After installing a Constant Volume (CV) Venturi Valve and before turning air on to the system, it is necessary to reconnect the
factory calibrated linkage.
NOTE: After the linkage has been reconnected, the valve will be set to the factory calibrated airflow rate. Please refer to the
Venturi Valve’s specification label to confirm the airflow value. If adjustment is required to the airflow during the balancing
process, please see the Balancing section.
STEP 1
Cut cable tie and remove instruction tag from the valve. For a multi-body valve there will be
more than one cable tie.
STEP 2
First take out the hair pin and then remove the clevis pin. Keep both the clevis pin and hair
pin for Step 4.
STEP 3
Move the control arm to line up the holes.
STEP 4
Re-insert clevis and hair pin.

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VALVE ACCESSORIES
Venturi Valves can function with a variety of different products to control air temperature, decrease noise, and improve ease of
installation.
Valve accessories and optional products provided by
Antec Controls include:
1. Hot Water Coils (VVHWC)
2. Electric Coils (VVEC)
3. Silencer (VVSIL)
4. Valve Companion Connections (VCT)
5. Valve Installation Tape (VIT)
6. Valve Pressure Switch (VPS)
7. Valve Actuator
8. Valve Relay
Hot Water Coils (VVHWC)
Hot Water Coils (VVHWC) are devices installed with Venturi Valves that control room environment by heating air moving
through the valve. The VVHWC is designed to optimize heat transfer and access doors are available for upstream installation for
convenient maintenance.
Overview
See the VVHWC Product Submittal on AntecControls.com for specifications and dimensions of the options below.
Options
Standard Capacity Hot Water Coil
Model:
Features:
VVHWC-SC
•22 Gauge zinc-coated steel casing
•One to four row construction
•Aluminum fins spaced at 10 fins per inch
High Capacity Hot Water Coil
Model:
Features:
VVHWC-HC
•22 Gauge zinc-coated steel casing
•One or two row construction
•Aluminum fins spaced at 12 fins per inch
Oversized Standard Capacity Hot Water Coil
Model:
Features:
VVHWC-OSC
•22 Gauge zinc-coated steel casing
•One to four row construction
•Aluminum fins spaced at 10 fins per inch
Oversized High Capacity Hot Water Coil
Model:
Features:
VVHWC-OHC
•22 Gauge zinc-coated steel casing
•One or two row construction
•Aluminum fins spaced at 12 fins per inch
CAUTION
Different types of valve accessories can be used with the
Venturi Valve. When using accessories by Others, ensure
the dimensions and installation are compatible with the
Antec Controls Venturi Valve.

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Installation
STEP 1
Hot water coils are only available in supply orientation and should always be located down
stream of the supply Venturi Valve.
STEP 2
For single VVHWC’s, position the bead connection so that it faces the airflow.
For multibody VVHWC’s, position the slip connection so that it faces the airflow.
NOTE: Both single and multibody valves have slip and drive connections that will face down
stream of the airflow.
STEP 3
Before installing the plumbing connections for the VVHWC, check the coil hand designation
and ensure that it matches the system.
Generally, coils are plumbed with the supply connection located on the bottom of the leaving
air-side and the return connection at the top of the entering air-side of the coil to provide
counter flow heat exchange and positive coil drainage.
For one or two row water coils both parallel and counterflow orientations are acceptable,
however, for three or four row water coils only counterflow orientation is acceptable.
If a universal coil is supplied, cap off the two unused connections.
The coils inlet for the heating medium is provided with copper connectors with the
customers requested ends. If pipe fittings have been furnished, use a back-up wrench to
install or un-install the coil.
NOTE: The configuration of the coil connection varies with size, type, and circuitry of coil.
STEP 4
Maintain proper clearance (minimum 1.5”) between the coil and other structures such as the
fan, filter racks, transition areas, etc.
STEP 5
Mount the coil firmly and level to ensure it’s secure in its location and it’s able to drain.
Use the support method prescribed for the duct work in the job specifications.
Coils with intermediate headers can be pitched 1/8” per foot of coil finned length towards
the coils header/connection end.
The system must be adequately vented to operate effectively.
STEP 6
All field piping must be self-supporting. System piping should be flexible enough to allow for
thermal expansion and contraction of the coil.
STEP 7
If freezing is likely, blow compressed air into the coil. This will ensure that it has been
thoroughly drained.
Anti-freeze protection should be added if needed.

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Electric Coils (VVEC)
Electric Coils (VVEC) are devices installed with Venturi Valves that control room environment by heating the air moving through
the valve. The VVEC operates using standard building electrical power and is designed to optimize heat transfer.
Overview
See the VVEC Product Submittal on AntecControls.com for specifications and dimensions of the options below.
Options
Electric Coils
Model:
Features:
VVEC
•Automatic reset thermal cut-out
•Manual reset thermal cut-out
•Air flow switch
•20 Gauge galvanized steel, mechanically sealed, leak
resistant construction
•SCR Controls – 2 to 10 VDC
Before Installation
1. Check for shipping damage to heater assembly including, but not limited to, ceramic coil clips and wire damage. If damage is
found, do not power up heater, file claim with carrier and/or replace heater.
2. Check electrical specification label to ensure proper voltage/current ratings.
3. Before wiring, review and adhere to all local building codes, ordinances and the National Electric Code, pertaining to
installation of the equipment.
4. Determine if the unit is field flippable between left and right handling.
5. If mercury contactors are included, ensure the arrow on the label is pointed upward.
NOTES:
1. To maintain ETL certification, electric coils must only be installed as they have been marked on the installation label provided
on the door of the electric coil control panel. (Installation Label PIC)
2. A minimum static pressure of 0.20 in.w.c is required for stable operation with electric heater controls.
CAUTION
When installing, do not handle the unit by the inlet
velocity sensor. Ensure any packing material is
removed from the inside of the unit.

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Electrical Installation
1. Review Electrical Wiring diagram included with heater (typically glued to inside of electrical enclosure door).
2. Ensure circuit powering the heater has proper capacity. Follow local building codes.
3. The electric duct heater must have an uninterrupted or unbroken electrical ground to minimize the chance of injury should an
electrical fault occur. This may consist of an electrical wire or approved conduit when installed in accordance with existing
electrical codes.
4. Review and inspect safety devices.
a. Automatic Reset – trips if air surrounding the coils is too hot (~130F); will reset itself after cooling (~115F)
b. Manual Reset – trips if air surrounding coils increases rapidly (~150F); to reset press the red tab towards the reset switch
contacting the protruding metal tab on the relay
i. If electric coil does not have a red tab, press down the protruding metal tab on the relay by hand
c. Airflow Switch – trips ON when valve pressure differential is detected
i. Ensure airflow switch probe points into the air stream
ii. Note, the airflow switch must be mounted in a vertical plane; if this is not followed, the switch will always output a
constant ON or OFF regardless of airflow
Mechanical Installation
STEP 1
Electric coils are only available in supply orientation and should always be located down
stream of the supply Venturi Valve.
STEP 2
Use the support method prescribed for the duct work in the job specifications.
STEP 3
Connect the provided pressure tubing for the pressure switch to the Hi Pressure tee of the
Venturi Valve.
CAUTION
Disconnect all incoming power before any electrical
installation or service is performed on the unit(s).

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Silencer (VVSIL)
Silencer (VVSIL) is a highly engineered 14 inches silencer specifically designed for the full spectrum attenuation of sounds
produced by Venturi Valves. The packless design provides minimal disturbance in the airflow resulting in low pressure drops
across the silencer.
Overview
See the VVSIL Product Submittal on AntecControls.com for specifications and dimensions.
Options
Installation
VV Silencer
Model:
Features:
VVSIL
•Factory Mounted Transitions
•Slip Connection
•Made to fit Single, Dual, Triple, or Quad valve
•22ga Galvanized Steel Construction or 24ga 316 Stainless Steel Construction
STEP 1
Position silencer before the inlet of the Venturi Valve when the Venturi Valve is operating as
an exhaust valve. Position silencer on the discharge of the Venturi Valve when the Venturi
Valve is operating as a supply valve.
STEP 2
It is recommended that the silencer be installed prior to installing the Venturi Valve.
STEP 3
Use the support method prescribed for the duct work in the job specifications.
STEP 4
Mount the silencer to the duct. The slip connection should overlap a minimum of one inch
(1”) to ensure a proper fit.
STEP 5
Mount the Venturi Valve by slipping the appropriate end into the available duct work and the
other end into the free slip connection of the silencer. Each slip connection should overlap a
minimum of one inch (1”) to ensure a proper fit.
STEP 6
Fasten all connections using six (6) sheet metal screws per slip connection.
STEP 7
Seal slip connections using duct sealer.

VV
18 | VV – Manual | AntecControls.com
Valve Companion Connections (VCT)
Valve Companion Connections (VCT) come in two different types: drawband clamps and companion flanges.
Drawband clamps are designed as a connection method specifically for slip Venturi Valves. Drawband clamps are an alternative
to directly fastening the valve to the ductwork. The drawband clamp provides uniform compression, connecting spiral or plain
ductwork to a valve, ensuring that the valve is properly supported. Drawband clamps allow for quick installation or removal of
the Venturi Valve while minimizing damage from metal screws.
Companion flanges are available for single body valves. Companion flanges are to be slid onto duct with a 1.5-inch overlap and
mechanically fastened to the valve flange.
Overview
See the VCT Product Submittal on AntecControls.com for specifications and dimensions.
Options
Slip Connection Venturi Valve with Drawband Clamps
Model:
Features:
VCT - DBC
•Galvanized steel band and brackets
•UL 94 Elastomeric foam gasket
•Zinc plated flanged hex bolts with nylock nuts
•25ga galvanized steel or 24ga 304 stainless steel construction
Flange Connection Venturi Valve with Companion Flange
Model:
Features:
VCT - CFL
•Aluminum or 316 Stainless Steel (SS) construction