Surelock B Bolt Lock HEPA Filter Housing Specification Sheet

ManualsBrandsPrecisionaire ManualsAir CleanerBolt Lock HEPA Filter Housing Surelock B

Surelock-B

Bolt Lock HEPA Filter Housing

Bulletin PB1603-1206

Important Features

• Units are constructed of durable 14 ga.

galvanized steel

• All metal-to-metal joints are welded for

leak-tightness at + 8 in. w.g. internal pressure

• Prefilter tracks and doors are fully gasketed

• Positive-pressure adjustable door latches

create an air-tight seal

• Spring-loaded swing-arm assemblies hold

HEPA filters to sealing surface

• Access doors are hinged/removable for easy

service

General

Surelock-B Side Access HEPA Filter Housings are

designed to accept all gasket-seal HEPA filters. They

are all-welded factory-assembled flanged units suit-

able for installation in a duct on the downstream side

of an air handling unit.

Housings guarantee filter system efficiency equal to

the efficiency of the individual filters. Optional prefilter

tracks are designed to accommodate 2 in. pleated

panel filters with efficiency ranges up to 50% per

ASHRAE Standard 52.1 dust-spot test methods. Both

prefilters and primary HEPA filters are serviceable

through gasketed access doors.

Options

• Prefilter tracks

• Double-walled insulation on doors only or on the

entire housing

• Aluminum or 304 stainless steel housing

construction

• Modifications for high temperature (400 °F continu-

ous, 500 °F intermittent duty)

• Swing-arm assemblies for 6 in. deep HEPA filters

Construction

Housings are 27 in. deep in the direction of air flow

and are constructed of 14 ga. galvanized steel.

Upstream and downstream outwardly-turned flanges

are furnished for attachment to the ductwork. Each

HEPA filter is secured in place by four positive-

pressure spring-loaded swing-arm assemblies which

maintain continuous pressure on the filter gasket

against the sealing surfaces.

Optional prefilter tracks are galvanized steel furnished

with a pile gasket. Hinged/removable access doors

are furnished with rubber sealing gaskets and posi-

tive-pressure adjustable latches with easy-grip knobs

on the air entering and the air leaving sides to create

an airtight seal. Metal-to-metal joints are welded to

ensure a leak-proof assembly at + 8 in. w.g. internal

pressure.

Versatility

Surelock-B Housings are designed to accommodate

Alpha 95 filters with a DOP efficiency of 95% and

Alpha Cell and Alpha 2000 filters with DOP efficien-

cies of 99.97%, 99.99% and 99.999%. Standard

housings will accept nominal 12 in. deep 24 in. x 24

in. and 24 in. x 12 in. filters from one filter high and

one filter wide to four filters high and six filters wide. If

large units are not practical to install, smaller units are

available with modifications to facilitate stacking.

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FOREMOST IN AIR FILTRATION

Summary of content (4 pages)

PAGE 1
Surelock-B ® Bolt Lock HEPA Filter Housing F O R E M O S T I N A I R F I LT R AT I O N Bulletin PB1603-1206 General Construction Surelock-B Side Access HEPA Filter Housings are designed to accept all gasket-seal HEPA filters. They are all-welded factory-assembled flanged units suitable for installation in a duct on the downstream side of an air handling unit. Housings are 27 in. deep in the direction of air flow and are constructed of 14 ga. galvanized steel.
PAGE 2
Cfm Capacities and Dimensions Using Standard Alpha Cell and Alpha 2000 High Capacity HEPA Filters Height Code 05H Overall Flange Height (in.) 15-5/6 10H 27-5/16 15H 39-5/16 20H 51-5/16 25H 63-5/16 30H 75-5/16 35H 87-5/16 40H 99-5/16 Width Code Initial PD (in. w.g.) 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.3 1.0 1.0 1.
PAGE 3
A Surelock Features B A. 14 ga. galvanized steel construction B. 1-1/2 in. easy-grip UV-resistant C knobs on positive-pressure adjustable door latches C. Hinged/removable doors D. Optional 2 in. pre-filter tracks E. All metal joints welded F. Filter sealing surface D E F A A. Standing flange for duct connection B.
PAGE 4
1. Standard construction: All-welded 14 gauge (.078 in.) galvanized steel housing and doors, leak -tight at + 8 in. w.g. 2. Flange dimensions are typical for both top and bottom of openings. 3. Each HEPA filter is individually secured and clamped in place with four spring-loaded swing arm assemblies. 4. Maximum operating temperature for standard Surelock Housings is 250 °F. High temperature Surelock housings are available for 400 °F continuous and 500 °F intermittent duty.