APG 22C Series User manual

Version 2.1
Published December 2020
Industrial Enclosures for
Harsh Environments
User Manual
Series 22C, 24C, 35C, 47C
Allison Park Group, Inc.
4055 Alpha Drive, Allison Park, PA 15101
www.apgvision.com
412.487.8211

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
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Introduction
Developed and tested by APG Inc., this enclosure was designed to protect your device(s) in harsh,
industrial environments. Follow this guide for instructions on assembling and maintaining the enclosure
while ensuring the performance of the integrated component.
Protection Rating
Our 24C,35C,and 47C Series enclosures are rated NEMA 4 / IP65, guaranteed to be dust proof as well as
protecting against low-pressure spray downs. These enclosures are constructed with an anodized 6061
aluminum and fastened with 18-8 stainless steel.
For a lower cost option our 22C Series enclosures are rated NEMA 12 / IP52; constructed for indoor use
these enclosures protect against personnel contact with the enclosed equipment, are dust protected, and
protect against mild splashes.
All gaskets are made from a silicone rubber, Viton™ rubber, or EPDM foam. The viewport window may be
a clear acrylic with a scratch-resistant coating applied to either side, glass, or clear polycarbonate.
Note: Enclosure Bodies differentiate between 22C, 24C,
and 35C/47C Series enclosures. Mounting Arms will fasten
to the 22C, 24C, and 35C/47C Series Enclosure Bodies
differently.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Installation Instructions
1. You may need the following tools:
a. Miniature strap wrench or pliers (Non-marking jaws suggested)
b. 1/8” Hex Key
c. 3/16” Hex Key
d. 1/4” Hex Key
e. 11/16” Box end wrench or deep socket
f. 3/4” Box end wrench or deep socket
2. Preparing the enclosure:
a. Unscrew the Barrel from the Enclosure Body by hand.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
3. Mounting your enclosure:
a. 22C Series
i. Four (4) M5x0.8, 0.325” deep mounting holes are located on each side of the Enclosure
Body.
ii. Contact our Sales team to ask about a Pan & Tilt mounting adapter for your enclosure.
iii. Skip to Step 4 to continue installing your enclosure.
b. 24C Series
i. Four (4) M5x0.8, 0.50” deep mounting holes are located on the Enclosure Body.
ii. Contact our Sales team to ask about a Pan & Tilt mounting adapter for your enclosure.
iii. Skip to Step 4 to continue installing your enclosure.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
c. 35C Series
i. Your enclosure includes a Pan & Tilt mounting base that will allow you to pitch, yaw, and
roll your enclosure to a preferred position before securing in place.
ii. Skip to Step 4 to continue installing your enclosure.
d. 47 Series
i. Your enclosure includes a Pan & Tilt mounting base that will allow you to pitch, yaw, and
roll your enclosure to a preferred position before securing in place.
ii. Skip to Step 4 to continue installing your enclosure.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
4. Installing your component(s) into the enclosure:
a. It may be helpful to run your device’s cable(s) into the enclosure through the Cord Grip
before mounting the device into the enclosure.
b. Align the mounting holes on your device with the hole cutouts on the enclosure Mounting
Arm.
c. Secure your device to the Mounting Arm using the fasteners provided with your device or the
optional bolts included with the enclosure.
Note: If the Mounting Arm for your enclosure has slot cutouts, use these to position the lens
of your camera or sensor as close to the Viewport as possible to avoid reflections.
5. Refer to the Cable Gland Instructions at the end of this manual for proper milling of Cable Gland
Insert and cable(s) installation.
6. Sealing the enclosure:
a. With your component(s) installed in the enclosure, reinstall the barrel that you removed in
Step 2.
b. Hand tightening the Faceplate, Barrel, and Enclosure Body together will be enough to seal
your enclosure and meet its IP rating. Threads will be pre-lubricated to keep the seal.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
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Air-Cooling the Enclosure
This assembly option includes adapters and gaskets to allow your enclosure to be cooled with suppled air.
Note: If you are not installing the optional Air Curtain
feature, skip to Step 5 of this section.
1. By hand, unscrew the Faceplate from the Barrel.
2. Remove the Faceplate Gasket from the Faceplate.
3. Install the optional Air Curtain gasket into the
Faceplate so that it sits against the Viewport.
a. Reference the exploded view on Page 2.
4. By hand, reinstall the Faceplate onto the Barrel.
Note: With an Air Curtain Gasket the enclosure will
become unsealed. If maintaining the seal and air blow-off
is desired, ask our sales team about our Air Shield
faceplate option.
5. Using a hex key wrench, remove the Air Fitting Plugs
that came installed on back of the Enclosure Body.
6. Using a socket or an adjustable wrench, install one or
both Air Fitting Adapters into the threaded holes as
necessary.
7. Recommended supply air pressure is 2-5 PSIA (0.138-
0.345 Bar).
a. Make sure air is clean and dry. Long air lines
can accumulate moisture in humid
environments.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Enclosure Accessories
Our 22C, 24C, 35C, and 47C enclosures have optional accessories available to improve their protection
capacity.
Sun Shield / Heat Shield
If your equipment needs additional protection from bright lights or
radiating heat, then our Sun Shield may be the right choice for your
enclosure. The Sun Shield may be easily installed by positioning it
onto your enclosure and securing it in place with the Sun Shield’s
included clamps.
Air Shield Faceplate
If the Air Curtain Gasket included with your enclosure is not
sufficiently clearing the debris or moisture from the viewport of
your enclosure, then our Air Shield faceplate may be the right
choice for your enclosure. It provides a high velocity, thin sheet of
air across the viewport.
1. By hand, unscrew the existing Faceplate from the Barrel.
2. Remove the Faceplate Gasket and Viewport from the
Faceplate.
3. Install the Faceplate Gasket and Viewport into the Air Shield
Faceplate.
4. By hand, install the Air Shield Faceplate onto the Barrel.
5. Connect your preferred air fitting into the 1/8 NPT tapped
hole on the side of the Air Shield Faceplate.
6. The Air Knife Faceplate is designed to use normal shop air
supplies up to 100 PSIG (6.9 Bar).
a. Make sure air is clean and dry. Long air lines can
accumulate moisture in humid environments.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Cleaning and Maintenance
Stainless Steel:
When cleaning the stainless-steel body of your enclosure be sure to avoid bleach and cleaners with
chlorine as these will stain and damage the surface. Additionally, steel wool and brushes should be
avoided to preserve the polished finish.
Aluminum:
Anodized aluminum parts may require abrasive cleaning with gentle cleaning products such as soap and
water. Harsh cleaning products may react with unfinished aluminum parts.
Acrylic / Polycarbonate:
Although your acrylic window comes with an anti-abrasion coating, it is important to routinely clean the
surface to maintain visibility. APG recommends a plastic/acrylic cleaning solution, otherwise use soap and
water with a microfiber towel.
DO NOT use ammonia, acetone, or alcohol-based cleaners; this will crack and weaken the acrylic.
Glass:
It is important to routinely clean the surface of your enclosure’s window to maintain visibility. For glass,
make sure the surface is wet before cleaning to avoid scratching the surface. A microfiber towel is
recommended for wiping down the surface when you are finished washing.
Temperature Tolerance
The listed temperature ranges are for reference only. Exceeding these values may result in compromising
the liquid tight enclosure and permanently damaging the material. Stainless Steel and Nickel-plated Brass
Cable Gland Bodies are available if your application exceeds these materials’ tolerances.
Polyethylene: -4° to 200° F
EPDM Foam: -40° to 250° F
Polycarbonate: -4° to 285° F
TPE Split Insert: -20° to 285° F
Viton™ Rubber: -20° to 400° F
Silicone: -100° to 400° F

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Warranty Statement
Allison Park Group, Inc. (APG) warrants the equipment manufactured by it to be free from defects in
materials and workmanship under normal use and service; its obligation under this warranty being limited
to replacing at its facility any product, part, or parts which shall, within one (1) year after delivery of such
equipment to the original purchaser, be returned, and which APG’s examination shall disclose at its sole
discretion to have been defective. This one (1) year warranty is forfeited by tampering, modifying, or altering
the APG product in any way that is beyond the scope of provided instructions for routine inspection, care,
and installation of integrated components. APG expressly disclaims any express or implied warranty of
merchantability or fitness for a particular purpose. APG shall have no liability for damages, direct or
consequential, on account of defective materials or workmanship. APG reserves the right to make changes
in design, or to make additions to, or improvements in, its products without imposing any obligation upon
itself to install them on its products previously installed. APG may provide assistance in the form of
recommendations, engineering or technical information, and advice but such information is furnished only
as an accommodation and APG shall have no liability for incomplete, faulty, or inaccurate advice,
recommendations, or assistance, negligent or otherwise. APG accepts responsibility for the warranty of
integrated components that are purchased and installed at its facility, subject to their terms and limitations.
Returns or replacements of parts and/or products may be subject to shipping, handling, replacement,
and/or restocking fees. Some regions do not allow limitations on how long an implied warranty lasts or
allow exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions
may not apply to you. This warranty gives you specific legal rights, and you may also have other rights,
which vary region to region.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Fastener Torque Specifications
To properly fasten components of our enclosures, determine the fastener size (M5 or M6, typically) and
the material of the gasket being compressed (Silicone, EDPM Foam, or Viton). Lubrication is applied to all
tapped threads during assembly and reapplication is suggested if component is being reassembled.
M5 Fasteners
•Silicone Gasket: 6.0 lb.in 0.6 N.m
•EDPM Foam Gasket: 4.0 lb.in 0.5 N.m
•Viton Gasket: 8.0 lb.in 0.9 N.m
M6 and ¼ Inch Fasteners
•Silicone Gasket: 8.0 lb.in 0.9 N.m
•EDPM Foam Gasket: 4.0 lb.in 0.5 N.m
•Viton Gasket: 10.0 lb.in 1.1 N.m
External Acrylic Viewport *
•Silicone Gasket: 4.0 lb.in 0.5 N.m
•EDPM Foam Gasket: 4.0 lb.in 0.5 N.m
•Viton Gasket: 4.0 lb.in 0.5 N.m
Body Weld Studs
•M5: 15.6 lb.in (MAX) 1.75 N.m (MAX)
•M6 & ¼ Inch: 26.4 lb.in (MAX) 3.00 N.m (MAX)
*External acrylic viewports are susceptible to cracking around the corners if over-torqued. To meet
enclosure IP rating requirements and prevent damage to the viewport, follow these torque specifications.
Note: The maximum torque suggested for your application is to prevent over-compression of the gasket
which may damage the material and compromise the seal of the enclosure. If you are unsure of the
torque you are applying to a fastener, bolt down until the gasket begins to expand from under the head
of the fastener then back off one eighth turn.
APG Custom
Flanged-Hex Head
with Gasket
Fastener with
Bonded Sealing
Washer Gasket

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Cable Gland Instruction
To correctly use the Cable Gland, determine the diameter(s) of the cable(s) you want to run into the
enclosure. Select an end drill (best) or drill bit of the same diameter or up to 20 thousandths larger. See the
next page for protection level based on hole diameter versus cable diameter. While the Cable Gland is
assembled, mill or drill a hole for each able centered on the split line in the Split Insert.
Note: To get the cleanest hole, do the following:
1. Use an end mill.
2. Mill from the Crown Nut side.
3. When milling the hole, back out and clean the mill flutes frequently (every ¼” depth).
4. Chill down the end mill before milling each hole.
To install the cable(s), unscrew the Crown Nut and remove the Split Insert. Slide the cable connector through
the hole in the Crown Nut, then through the hole in the Cable Gland body. Join the two sides of the Split
Insert around the cable and press the Split Insert back into the Cable Gland body. Tighten the Crown Nut
back on the body.
And you are finished! You should now have a liquid tight seal around the cable without having to remove
or replace the cable connector.
Note: For bulkhead installations, drill or punch the following mounting hole sizes:
PG16: 23.5mm (0.93”) Can use a 15/16” drill
PG21: 29.3mm (1.15”) Can use a 1 3/16” drill
PG29: 38.0mm (1.50”) Can use a 1 1/2” drill
PG36: 48.0mm (1.89”) Can use a 1 15/16” drill
Note:
When cutting holes in the PG16 Split Insert, an end mill is recommended. Drills work poorly in this size.

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Allison Park Group Inc. • 4055 Alpha Drive • Allison Park, PA 15101 • www.apgvision.com
Telephone [phone] • Fax [phone] • E-Mail: [e-mail]
Replacement/Addition Cable Glands
PG16, PG21, PG29, and PG36 cable glands are available separately for running your cables through
bulkheads, enclosure sides, etc.
Standard Series (All cable glands are RoHS compliant)
Protection Rating: IP68; NEMA 4X
If Cable Diameter = Insert Hole Diameter
Protection Rating: IP65; NEMA 3
If Cable Diameter is up to 10% less than Insert Hole Diameter
Torque Recommendations lbf-in. (Nm)
The listed torque values are for reference only. Due to wide range of cable insulation materials used and
the varying degrees of hardness between material types, torque values for Dome Nuts may vary depending
on the cable jacket’s characteristics. APG recommends that applied torques be determined empirically by
testing the actual cable and Cord Grip used.
Non-Metallic
Cord Grip
Metallic Cord Grip
External Thread Size
Dome Nut
External Thread/Lock Nut
Dome Nut
PG16
44.0 (5.0)
44.0 (5.0)
66.0 (7.5)
PG21
66.0 (7.5)
66.0 (7.5)
88.0 (10.0)
PG29
66.0 (7.5)
66.0 (7.5)
88.0 (10.0)
PG36
66.0 (7.5)
66.0 (7.5)
88.0 (10.0)
Part Number Description
PG16-01-01-01-01 PG16 Lock Ring, Polycarbonate Body/Crown Nut, TPE Insert, Polyethylene Seal
PG21-01-01-01-01 PG21 Lock Ring, Polycarbonate Body/Crown Nut, TPE Insert, Polyethylene Seal
PG29-01-01-01-01 PG29 Lock Ring, Polycarbonate Body/Crown Nut, TPE Insert, Polyethylene Seal
PG36-01-01-01-01 PG36 Lock Ring, Polycarbonate Body/Crown Nut, TPE Insert, Polyethylene Seal