The document summarizes access hatches produced by CORIX Water Products for below-ground installations. It describes the different types of hatches available in aluminum or galvanized steel in various sizes. It also lists common applications and provides details on loading capacities and specifications for pedestrian, H-20 vehicle, and custom load-rated hatches. Frame types including angle, trough, and low-cost options are specified along with safety and technical requirements. Item numbers, dimensions, weights and notes are provided for standard single and double door hatch sizes.

2. CORIX Water Products offers access hatches
designed to provide easy and secure access to
below ground, below surface and below floor
installations. Available in aluminum or galvanized
steel and in a variety of sizes, our hatches are
designed to meet your specifications.
Applications include:
• pump stations
• water and wastewater treatment plants
• water meter pits
• cross connection control vaults
• parking lots
• storm drains
• airports
• gas and water valve vaults
• monitoring wells
Light duty pedestrian rated
• Minimum live load of 300 lb. per square foot
• Deflection shall not exceed 1/150th
of the span
• Applies to the ALN, CLN and CLS series
• 300 lb. per square foot deflection shall not exceed
1/150th
of the span using a maximum design stress
of 17,200 psi as per the Aluminum Association, Inc.
“Specification for Aluminum Structures”
• Built to OSHA standard 1910.23
H-20
• 16,000 lb. + 30% impact factor on a 10" x 20"
contact area
• Applies to the AHS and CHS series
• Not suitable for high density traffic
• AASHTO H-20 wheel loads where not subject to high
density traffic
• Built to OSHA standard 1910.23
Access Hatches
Our hatch doors are designed to meet all of your loading
requirements:
ALUMINUM HATCH OPTIONS
ALUMINUM DESIGN OPTIONS
Recessed Padlock Clip Safety Sure Grip Heavy Duty Lift
Spring
Stainless Steel
Safety Chain
Limit Switch Inside Turn Handle Pentahead Lettering
Light Pedestrian 300 lb. load per square foot
H-20* 16,000 lb. + 30% impact load on a
10" x 20" contact area
LOADING
Steel and Aluminum
SPRING
Steel and Aluminum
Spring Assist Pneumatic spring to easily open door
None Not supplied with standard unit
*Not suitable for high density traffic.
Angle
Non-Channeling
FRAME
Channel
Channels Water Away
from Hatch
Trough Frame
with Drain
Odour Control Gasket
Uncompressed
Gasket
Debris
Gasket
Cover
Door
Suppression
Gasket

3. Angle Frame
• Angle frame
• Red powder coated stainless steel automatic hold open arm
• Stainless steel hardware
• 1/4" diamond plate
• Recessed lift handle comes with “CORIX” cast on
• Recessed stainless steel slam-lock
• Recessed padlock clip
• Hydraulic flush mount stainless steel lift assist with no
exposed springs
• Black tuffcoat 3.5PR industrial coating on exterior of frame
for adhesion to concrete
• O-ring in frame for odour, debris and moisture gasket
• Removable TEE handle
No vehicle traffic allowed.
Low-Cost Angle Frame
• Angle frame
• Red powder coated stainless steel automatic hold open arm
• Stainless steel hardware
• 1/4" diamond plate
• Recessed lift handle comes with “CORIX” cast on
• Exposed padlock clip
• Drip channel (double door hatches)
Trough Frame
• Trough frame with 1.5” drain coupling
• Red powder coated stainless steel automatic hold open arm
• Stainless steel hardware
• 1/4" diamond plate
• Recessed lift handle comes with “CORIX” cast on
• Recessed stainless steel slam-lock
• Recessed padlock clip
• Internal safety release turn handle
• Hydraulic flush mount stainless steel lift assist with no
exposed springs
• Black tuffcoat 3.5PR industrial coating on exterior of frame
for adhesion to concrete
• O-ring in frame for odour, debris and moisture gasket
• Removable TEE handle
• Drip channel (double door hatches)
CORIX ITEM No. LOADING
INTERIOR
DIMENSION
WEIGHT
(LB.)
SINGLE DOOR
ASPCSAFPSD24X24 300 PSF 24" x 24" 58
ASPCSAFPSD30X30 300 PSF 30" x 30" 77
ASPCSAFPSD36X36 300 PSF 36" x 36" 136
ASPCSAFHSD24X24 H-20 24" x 24" 121
ASPCSAFHSD30X30 H-20 30" x 30" 160
ASPCSAFHSD36X36 H-20 36" x 36" 260
DOUBLE DOOR
ASPCSAFPDD48X48 300 PSF 48" x 48" 48
ASPCSAFHDD36X72 H-20 36" x 72" 356
ASPCSAFHDD48X48 H-20 48" x 48" 633
ASPCSAFHDD48X96 H-20 48" x 96" 90
CORIX ITEM No. LOADING
INTERIOR
DIMENSION
WEIGHT
(LB.)
SINGLE DOOR
ASPCSLAFPSD24X24 300 PSF 24" x 24" 320
ASPCSLAFPSD30X30 300 PSF 30" x 30" 66
ASPCSLAFPSD36X36 300 PSF 36" x 36" 85
ASPCSLAFHSD24X24 H-20 24" x 24" 650
ASPCSLAFHSD30X30 H-20 30" x 30" 95
ASPCSLAFHSD36X36 H-20 36" x 36" 216
DOUBLE DOOR
ASPCSLAFPDD48X48 300 PSF 48" x 48" 180
ASPCSLAFHDD48X48 H-20 48" x 48" 373
CORIX ITEM No. LOADING
INTERIOR
DIMENSION
WEIGHT
(LB.)
SINGLE DOOR
ASPCSTFPSD24X24 300 PSF 24" x 24" 18
ASPCSTFPSD30X30 300 PSF 30" x 30" 66
ASPCSTFPSD36X36 300 PSF 36" x 36" 118
ASPCSTFHSD24X24 H-20 24" x 24" 121
ASPCSTFHSD30X30 H-20 30" x 30" 164
ASPCSTFHSD36X36 H-20 36" x 36" 267
DOUBLE DOOR
ASPCSTFPDD48X48 300 PSF 48" x 48" 33
ASPCSTFHDD36X72 H-20 36" x 72" 108
ASPCSTFHDD48X48 H-20 48" x 48" 170
ASPCSTFHDD48X96 H-20 48" x 96" 190
NOTE: All tables show standard sizes. Custom sizes are available. Please
contact your nearest CORIX branch for specifications and drawings.
No vehicle traffic allowed.
Not suitable for high density traffic.

4. ABOUT CORIX WATER PRODUCTS
CORIX Water Products maintains one of the largest single source
inventories of water, wastewater and irrigation supplies
in the industry.
We also design and fabricate standard or custom-engineered
utility infrastructure systems for municipal and industrial
applications. CORIX offers a comprehensive and flexible approach
to delivering the correct systems, from product and equipment
supply to full system design, construction, operations and
maintenance. We employ leading-edge technology at our facility
in Langley, British Columbia to provide the best solution in
the most cost-effective way with in-house design supported
by mechanical, civil and chemical engineers and CAD and
instrumentation technicians.
Our complete offering of engineered products and systems
includes:
• Pressure reducing valve (PRV) stations
• Valve chambers
• Booster pump packages
• Hatches
• Fabricated pipe systems
• Packaged systems with enclosed buildings
DELIVERING THE CORIX ADVANTAGE
As a fully integrated provider of utility infrastructure products,
services and systems for water, wastewater and sustainable
energy, our “one-stop shop” approach allows us to deliver
comprehensive, flexible and innovative solutions to our
customers’ most complex utility infrastructure challenges.
SECURITY AND SAFETY - Technical Specifications
• Design shall combine covering of the opening, fall through
protection per OSHA Standard 1910.23 and controlled confine
space entry per OSHA Standard 1910.146.
• The safety grate shall be made of 6061-T6 aluminum and
designed per the Specifications for Aluminum Structures by
the Aluminum Association, Inc. 5th edition, December 1986
for “Bridge Type Structures”.
• The grating shall be designed to withstand a minimum live
load of 300 lb. per square foot using 17,300 psi as the design
stress for the aluminum. Deflection shall not exceed 1/150th
of
the span.
• Grate openings shall allow for visual inspection, limited
maintenance and float adjustments while the safety grate
fall through protection is left in place.
• Design must assure that the fall through protection is in place
before the doors can be closed, thereby protecting the next
operator.
• Each grate shall be provided with a permanent hinging system,
which will lock the grate in the 90° position once opened.
Grates in the open position create a visual barrier around the
opening, alerting passing pedestrians.
• Welding shall be in accordance with ANSI/AWS D1.2-90
Structural Welding Code for Aluminum.
Contact CORIX today to discuss your project needs.
Building a World of Sustainable Communities
www.corix.com
British Columbia
Abbotsford
604.850.0441
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604.455.3500
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250.746.8877
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250.426.5059
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250.475.0055
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403.203.4100
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780.513.5010
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780.465.0251
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403.327.9132
Alberta
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Ontario
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905.428.8608
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905.662.5200
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519.648.1212
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705.722.6199
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705.524.6872
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519.668.6095
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613.967.7871
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905.227.0705
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613.822.4379
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306.955.7007
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Winnipeg
204.632.0331
2013-03