NGP 158NDKB Overlapping Astrag...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$483.69
NGP NGP 158NDKB Overlapping Astragal with NGP-TPV Seal, Dark Bronze NGP-158NDKB

NGP 158NDKB Overlapping Astragal with TPV Seal - Dark Bronze Aluminum Alloy 6063

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Model: 158NDKB-97

In Stock (leaves warehouse same day if ordered before 3pm ET)

$483.69
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NGP Overlapping Astragal with TPV Seal - Dark Bronze Aluminum Alloy 6063

Professional Door Sealing Solution for Commercial Applications

The NGP Overlapping Astragal with NGP-TPV Seal combines aluminum alloy 6063 T5 temper construction with advanced Thermo-Plastic Vulcanizate sealing technology. This dark bronze finished astragal accommodates doors up to 120" maximum height and is specifically designed for beveled edge doors. BHMA certified to ANSI/BHMA A156.22 performance standards, this weatherstripping solution operates reliably across temperature ranges from -80 F to 275 F.

Professional Features & Benefits

  • Maximum Door Height: Accommodates doors up to 120" for versatile installation in standard and oversized openings.
  • Temperature Performance: Operates effectively from -80 F to 275 F with excellent resistance to temperature extremes.
  • Heavy-Duty Construction: Aluminum alloy 6063 T5 temper provides exceptional durability and structural integrity for commercial applications.
  • Advanced Seal Technology: NGP-TPV Thermo-Plastic Vulcanizate offers superior abrasion resistance, tensile strength, and memory retention.
  • Weather Resistance: Flame resistant and moisture resistant construction with excellent resistance to ozone, sunlight, and aging.
  • BHMA Certification: Certified to ANSI/BHMA A156.22 performance tests for heat and cold compliance assurance.
  • Beveled Door Compatibility: Specifically engineered to fit beveled edge doors for proper sealing performance.
  • Complete Hardware: Includes #8 X 1" FH U/C SMS fasteners for secure installation.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Product Category: Door Trim and Accessories
  • Product Group: Door Trim and Accessories
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Type: Astragals
  • Subcategory: Gaskets & Weatherstripping

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose NGP Quality?

NGP astragal products deliver professional-grade reliability with aluminum alloy 6063 T5 temper construction and advanced TPV seal technology rated for extreme temperature performance from -80 F to 275 F. BHMA certified to ANSI/BHMA A156.22 performance standards for heat and cold testing. Engineered for demanding commercial applications where dependable weathersealing performance is essential.

Product Specs

Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Astragals
Subcategory:
Gaskets & Weatherstripping
Commercial/Residential:
Commercial
Product Category:
Door Trim and Accessories
Department:
Door Hardware

NGP 158NDKB-97 – Frequently Asked Questions

1) Will the NGP 158NDKB astragal work on a square edge door, or does it need a beveled edge?
The 158NDKB overlapping astragal is engineered for beveled edge doors. If the inactive leaf on your pair has a square edge, the seal geometry won't close properly against it and you should look at a different astragal profile.
2) Is this NGP astragal certified to any weatherstripping standard for a spec job?
It's BHMA certified to ANSI/BHMA A156.22, including the heat and cold performance tests. That's the standard architects cite for door gasketing and weatherstripping, so it submits cleanly against an A156.22 line on the hardware schedule.
3) What's the difference between an overlapping astragal like the NGP 158 and a split or T-astragal?
An overlapping astragal mounts on one leaf and laps over the meeting edge of the other, so it seals the gap on a pair without a mullion and also keeps a pry bar off the latch line. A split type such as the Pemko 369 puts a piece on each leaf with a pile brush insert between them, and a T-astragal like the Cal-Royal EAST-501 sets into the door edge with a vinyl insert. Overlapping is the usual pick when you want a positive weather seal plus edge protection; split types are used where an overlap would foul the swing or the exit device.
4) Is the Trimco 5001 a substitute for the NGP 158NDKB astragal?
No - they solve different problems despite both being called astragals. The Trimco 5001 is a stainless steel lock astragal for use with mortise or cylindrical locks, a short piece that shields the latch area at the meeting stile. The NGP 158NDKB is a continuous weatherseal astragal in aluminum 6063 T5 with an NGP-TPV seal, available in 97 inch and 120 inch lengths to run the full door height. If your goal is weather and light sealing, the 158NDKB is the part; if your goal is covering the lock and latch gap on a pair, the 5001 is.
5) What is the closest equivalent to the NGP 158NDKB overlapping astragal from another brand?
The NGP 158NDKB is a full-height overlapping astragal for beveled edge doors, made from aluminum alloy 6063 T5 temper with an NGP-TPV seal and supplied with #8 x 1 inch FH U/C SMS fasteners. The closest same-purpose part from another brand is the Cal-Royal EAST-501, an aluminum T-astragal with a vinyl insert for double doors. Both mount to the door edge and close the meeting-stile gap on a pair; the difference is the seal material, TPV on the NGP versus a vinyl insert on the Cal-Royal, and the profile, overlapping on the 158NDKB versus a T shape on the EAST-501.
6) I need an astragal for a fire-rated pair of doors - is the NGP 158NDKB the right choice?
The NGP 158NDKB is BHMA certified to ANSI/BHMA A156.22 for heat and cold performance tests, but if the opening requires a fire-rated astragal seal specifically, the Pemko 369 split astragal seal is described as fire-rated and carries a pile brush insert in a 13/32 inch x 11/32 inch aluminum profile. The 369 is a split design, meaning a piece goes on each leaf, where the 158NDKB is a single overlapping member on one leaf.
7) What should I use if the gap between my double doors varies along the height?
The NGP 158NDKB is a fixed overlapping aluminum extrusion with a TPV seal, sized for beveled edge doors up to 120 inches tall, so it seals a consistent gap. For a pair where the meeting gap is uneven, the Pemko 300 Series adjustable astragal uses a self-adjusting pile brush for double doors, which takes up variation across the height rather than relying on a set overlap.
8) My doors are square edge, not beveled - what astragal should I order instead of the NGP 158NDKB?
The NGP 158NDKB is specifically engineered to fit beveled edge doors, so on a square edge pair look at an alternative profile: the Cal-Royal EAST-501 aluminum T-astragal with vinyl insert, or the Pemko 369 split astragal seal with pile brush insert in a 13/32 inch x 11/32 inch aluminum section, which mounts as a low-profile seal on the stile face.
9) Do I need to buy screws separately for this NGP overlapping astragal?
No. The 158NDKB ships with #8 x 1 inch flat head undercut sheet metal screws for mounting. You'll still need a drill and, on a hollow metal door, the right pilot bit.
10) Will a TPV astragal seal hold up on an unconditioned exterior door in a cold climate?
The NGP-TPV seal on the 158NDKB is rated from -80 F to 275 F, with resistance to ozone, sunlight and aging. That covers exterior warehouse and loading dock openings where vinyl inserts tend to go stiff and take a set in winter.
11) Can I use the NGP 158 astragal on a 10 foot tall entrance door?
Yes, up to 120 inches. That's the rated maximum door height and the 120 inch length is stocked for exactly that, so oversized storefront and institutional leaves are covered without splicing two pieces.
12) Difference between the Trimco 5001 and 5002 lock astragals if I already have the NGP 158NDKB on the door?
Both Trimco parts are stainless steel lock astragals and neither replaces the NGP 158NDKB, which is the full-height aluminum weatherseal astragal with a TPV seal. Between the two Trimco items, the 5001 is stated for use with mortise or cylindrical locks, while the 5002 is a 1-9/16 inch x 6 inch piece for use with cylindrical locks.
13) Which astragal holds up better on exterior doors in extreme temperatures?
The NGP 158NDKB uses an NGP-TPV Thermo-Plastic Vulcanizate seal rated from -80 F to 275 F with resistance to ozone, sunlight, and aging, and is BHMA certified to ANSI/BHMA A156.22. The comparable brush-type options, the Pemko 300 Series with self-adjusting pile brush and the Pemko 369 with pile brush insert, seal with nylon-style brush rather than a vulcanized elastomer, and the Cal-Royal EAST-501 uses a vinyl insert. Choose based on whether you want a compressible elastomer seal or a brush that sweeps a variable gap.
14) I need the astragal to match dark bronze hardware across a building. What finish is the NGP 158NDKB?
Dark bronze, on 6063 T5 temper aluminum. It reads with bronze anodized frames, closers and exit devices, so it's a reasonable standard to carry across a run of exterior pairs in an office or school.
15) Is this astragal suitable for a hospital or school corridor, or is it exterior only?
It's classed as a commercial product and NGP lists it for healthcare, education, office, retail, industrial, multi-tenant residential and government work. The construction is flame resistant and moisture resistant, which is why it turns up on both exterior pairs and interior pairs that need a tight meeting stile.
How fast can I get the NGP 158NDKB-97 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the NGP 158NDKB-97 come with a warranty?
Absolutely. The NGP 158NDKB-97 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the NGP 158NDKB-97?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the NGP 158NDKB-97 from ZenSupply?
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