typical Saddle Vent® Setup Procedure
Place fan or blower a minimum of
5 ft. (1.6m) from manhole opening
Blower or Fan
90° Elbow
Manhole
Opening
Manhole Lid
Universal Mount
Saddle Vent®
Select a blower or fan based on environmental
conditions and the size of the confi ned space.
For information or guidance in selecting the
proper set-up, please contact Customer Service.
STEP 1) Install 6 ft. (1.8m) duct on blower or fan
STEP 2) Install 90° elbow on top of Saddle Vent®
STEP 3) Install duct on bottom of Saddle Vent®
STEP 4) Install universal mount on Saddle Vent® and
set in place with manhole lid for support
STEP 5) Install duct from blower to 90° elbow
STEP 6) Turn on blower or fan
Warning: For explosive environments,
follow ANSI/API 2015 and 2016 procedures
The Saddle Vent® is a registered trademark of Air Systems International, Inc.
The Conductive Saddle Vent® is covered by U.S. and Foreign Patents
WArNiNG: HAZArDoUS loCAtioN oPerAtioNS
Use an explosion-proof or intrinsically safe blower or fan,
conductive ducting, and The Conductive Saddle Vent® System.
Attach all grounding wires and assure a complete circuit to the
blower or fan in order to remove static charges.
the Saddle Vent® Ventilation System
All ventilation procedures should comply with federal, state, and local regulations. Air quality should be tested prior to
ventilating a confi ned space. A purge chart is provided on our website, www.airsystems.com, help assist in estimating the
approximate time needed to ventilate confi ned spaces. Air quality should be tested continuously during confi ned space
occupancy to ensure a stable atmosphere and worker safety because atmospheric conditions can change rapidly. Addi-
tional procedures and recommendations are available from federal, state, and local agencies.
Do
Not
operate these fan
unit in a vertical position or with the fl ange or guards removed.
Note:
If volatile or explosive vapors are suspected, use Air Systems’ explosion proof electric blower, Model No. SVB-
E8EXP, explosion proof in-line fan, Model No. SVF-10EXP, explosion proof contractors fan, Model No. CVF-8EXP or Air
Systems’ intrinsically safe pneumatic blower, Model No. SVB-A8.
Note
: For confi ned space ventilation in non-hazardous locations, use Air Systems’ confi ned space ventilation kit, Model
SV-CUP. For hazardous locations use ventilation kit, Model SV-CUPCND along with one of the above explosion proof
blowers or fans.
SAFETY PRECAUTIONS
reAD AND FolloW All iNStrUCtioNS BeloW
WARNING
Fan and blower models with the “EX” or “X” designation are the
only models approved for use in hazardous locations. These
models are
NOT
approved for use in mines.
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