Page 4 - BPS-PIAD-Technical-Bulletin

Custom Door Positioning Hardware

Available in Standard or As shown on Page 1, Best Purging Systems offers door positioning hardware in
Stainless Steel Materials! various styles and materials. In most circumstances, gas cylinders are ideal, but
Best Purging Systems also offers more economical and passive devices, such as
articulating stays or telescoping supports as shown to the left, that prevent hinges
from being over-extended. This hardware is ideal for top or bottom hinged doors,
for doors located offshore, or for doors in an area where strong prevailing winds
require a door retainer to position your door securely in the open position.
Please contact a Sales Associate for more details regarding this option!

Material Specifications Model Number Designations

Mounting Frame, Door & Removable Hinges PIAD-AA-12-2-CG-1-AH
Door & Mounting Frame: ............................................................14 Gauge Carbon Steel, Product Series
14 Gauge 304 Grade Stainless Steel or Window Size Range *1 (Hinge Side / Adjacent Sides)
14 Gauge 316 Grade Stainless Steel
Window: ..............................................................................1/4” Laminated Safety Glass, AA - 4-12” / 4-12” AB - 4-12” / 12-24” AC - 4-12” / 24-36”
1/4” Lexan™ Margard™ MR-10 or BA - 12-24” / 4-12” BB - 12-24” / 12-24” BC - 12-24” / 24-36”
1/4” Wire Reinforced Safety Glass CA - 24-36” / 4-12” CB - 24-36” / 12-24” CC - 24-36” / 24-36”
Removable Hinges: .............................................. High Gloss Finish 316 Stainless Steel NEMA Rating
Flat Head Door Screws: ............................................8/32 316 Stainless Steel Hex Drive 12 - NEMA 12 04 - NEMA 4 4X - NEMA 4X *2
Door Screw Retainers: .....................................Zinc-Plated Steel Heavy-Duty Rivet Nuts PIAD Depth
w/ Open End, 8-32 Interior Thread 2 - 2” Depth (Standard) *3 3 - 3” Depth 4 - 4” Depth
Flat Head Mounting Frame Screws: .....................8/32 316 Stainless Steel Phillips Drive
Mounting Frame Washers: ................................................... 0.052” Thick Rubber (blue) 1st Digit: Body Material S - 304 Stainless Steel
C - Carbon Steel *4
Mounting Frame Cap Nuts: .......................................................8/32 316 Stainless Steel
X - 316 Stainless Steel U - Custom Material *6

Vice-Action Compression Latches 2nd Digit: Window Material
Latch Housing:.....................................Black Polyester Powder Coated Die Cast Zinc or G - 1/4" Safety Glass L - 1/4" Lexan TM X - No Window

Electro-Polished 316L Grade Stainless Steel W - 1/4” Wire Reinforced Safety Glass *5 U - Custom Material *6

Latch Cam: .......................................................Dacrotized® Case Hardened 1075 Steel
Latch Sleeve: ....................................................Dacrotized® Case Hardened 1065 Steel Body Finish
Latch Shaft: ...............................................Dacrotized® Zinc Alloy Plated 12L14 Steel or 1 - Black Powder Coat (Standard)
316 Grade Stainless Steel 2 - Custom Color Powder Coat
Latch Mounting Nut: ..................................Dacrotized® Zinc Alloy Plated 12L14 Steel or 3 - Grain Parallel to Hinge (Stainless Steel only)
304 Grade Stainless Steel 4 - Grain Perpendicular to Hinge (Stainless Steel only)
Latch & Pawl Jam Nuts & Lock Washers .................................Zinc Plated 1010 Steel or U - Custom Finish *6
Passivated 302 Grade Stainless Steel 1st Digit: Latch Style
Latch & Pawl:............................................................................Zinc Plated 1010 Steel or A - Black Polyester Powder Coated Die Cast Zinc *7
Passivated 304 Grade Stainless Steel
Latch Pin:.............................................................. Zinc Plated Chromate Steel w/ Sealer X - Electro-Polished 316 Stainless Steel
Latch Spring & Retainer: .................................................Passivated 302 Stainless Steel 2nd Digit: Latch Operator
Latch O-Ring: ................................................................................Buna-N Rubber, Black H - Hand Operated K - Key Operated *8 T - Tool Operated *9
Hand Operated Latch Knob: ................Black Polyester Powder Coated Die Cast Zinc or IMPORTANT MODEL NUMBER SELECTION NOTES:
Electro-Polished 316L Grade Stainless Steel 1. Selection of PIAD Size Range is based on two letters. The first letter determines the span of the
Tool Operated Latch Cap:....................Black Polyester Powder Coated Die Cast Zinc or hinged side of your PIAD. The second letter determines the span of the adjacent sides. Please
Electro-Polished 316L Grade Stainless Steel note this selection has no bearing on your actual hinge location.
Key Operated Latch Cap: ....................Black Polyester Powder Coated Die Cast Zinc or 2. Corresponding with selection of NEMA 4X, we recommend selection of Electro-Polished 316 Grade
Stainless Steel Latch Material in Segment 7 for highly corrosive atmospheres.
Passivated 303 Grade Stainless Steel 3. Selection of PIAD Depth determines the internal clearance from the rear side of the window to the
Key Operated Latch Key: ................................................................... Nickel Plated Steel panel surface. 2″ Depth is standard, and 3″ and 4″ Depths are available at a slightly higher cost.
Suspended Window Mounting System 4. Carbon Steel Material may not be selected in combination with a NEMA 4X Rating in Segment 3.
5. Wire Reinforced Safety Glass should only be selected when impact hazards are immanent, due to
Window Gasket: ............................................................................ Closed Cell Neoprene viewing obstructions created by wire.
Window Trim Molding: .......................................Trim-Lok™ Extrusion Molded Neoprene 6. Please provide custom mounting frame and door material, window material and mounting frame
and door finish specifications in writing at time of order.
Window Retainer Clips: ............................Injection Molded 60 Durometer Santoprene™ 7. Die Cast Zinc Compression Latch Material is suitable for NEMA 12, 4 and 4X Ratings, but Stainless
Retainer Fastening Hardware:................... 316 Stainless Steel Locking Nut and Washer Steel Latch Material is recommended for highly corrosive atmospheres.
Replaceable Door Gasket 8. Key Operated Compression Latch Operators require a special key to operate. One (1) key is
supplied with each unit, but extra keys are available on request.
Base Material:........................................... Dense EPDM Rubber, 70 Shore A Durometer 9. Tool Operated Compression Latch Operator requires a 5/32″ hex (allen) head tool to operate (not
Embedded Retainers: .....................................Flexible Aluminum Wire or Stamped Steel supplied)
Bulb Material:............................................... Custom Formulated EPDM Sponge Rubber ADDITIONAL INFORMATION REQUIREMENTS:
Mounting Sealant & Hardware Kit (shipped loose) To request a quote or place an order, we will require four additional bits of information, as follows, that
may be supplied as notes accompanying any RFQ or PO.
Mounting Sealant:....................................Dow Corning 732 Silicone Sealant (3 oz. tube) 1. The actual Window Height you require in inches. Please note we accept increments as small as
Hardening Time: 20 Minutes /Full Cure Time: 24 Hours 0.125″ (1/8″), but the size must be within a range of 4 to 36 inches maximum, unless you require
a custom size PIAD.
Tensile Strength: 325 psi /Temperature Range: -75° to 350° F 2. The actual Window Width you require in inches. Like the height dimension, please note we accept
Sealing Screws: ...................................... 316 Stainless Steel 1/4-20 x 3/4” Phillips Head increments as small as 0.125″ (1/8″), but the size must be within a range of 4 to 36 inches maximum,
w/ Neoprene O-Ring unless you require a custom size PIAD.
Sealing Washers: ...........................................18-8 Stainless Steel w/ Neoprene Washer 3. The hinge location, specified as either the left or right side or the top or bottom.
4. As an option, if you selected a 304 or 316 Stainless Steel Material with a grain direction that will be
Locking Nuts: ....................................316 Stainless Steel 1/4-20 Hex Nut w/ Nylon Insert parallel or perpendicular to the hinge, please specify the direction of the grain (as either horizontal
or vertical) that you require to match the direction of your enclosure grain, if applicable.
Lexan and Margard are Trademarks of the Sabic Corporation; Trim-Lok is a trademark of Trim-Lok, Incorporated; Santoprene is
a trademark of the ExxonMobil Corporation; Dacrotized is a Registered Trademark of Metal Coatings International, Incorporated 5. We also encourage you to send us any drawings or documents that may assist us to ensure your
PIAD will fit properly and meet your needs.
Please contact us for assistance, Please note that items 3 & 4 above are requested to ensure we build your PIAD in exact accordance
with your requirements and to verify the PIAD Size Range and PIAD Finish you selected above. You
or select and purchase this product online! may rest assured we’ll send you a drawing for approval before we get started or contact you if we
suspect any potential issues.
All specifications subject to change without notice. Warranty & Liability policies available upon request.
Best Purging Systems Corporation www.purgeit.com 4725 Lawndale • La Marque, Texas 77568 Phn: 844.PURGE IT