NGP 158SA Overlapping Astragal...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$118.14
NGP NGP 158SA Overlapping Astragal with Silicone Seal, 84", Anodized Aluminum NGP-158SA 84

NGP 158SA Overlapping Astragal with Silicone Seal - 84" Anodized Aluminum

(No reviews yet) Write a Review

Model: 158SA 84
Selected Finish is

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

$118.14
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

NGP 158SA Overlapping Astragal with Silicone Seal - 84" Anodized Aluminum

Professional Door Sealing Solution for Commercial Applications

The NGP 158SA Overlapping Astragal delivers superior door sealing performance with its advanced silicone seal design and durable anodized aluminum construction. This 84" astragal features aluminum alloy 6063 T5 temper construction with synthetic rubber polymer siloxane sealing, providing excellent flexibility and memory across temperature ranges from -100 F to 500 F. BHMA certified to ANSI/BHMA A156.22 performance standards for heat and cold resistance, this astragal is specifically recommended for areas using FM200 or Halon fire suppression systems.

Professional Features & Benefits

  • 84" Length: Standard 84" height accommodates most commercial door applications with maximum height capability up to 120".
  • Extreme Temperature Performance: Operates effectively from -100 F to 500 F while maintaining flexibility at temperature extremes for reliable sealing.
  • Premium Aluminum Construction: Aluminum alloy 6063 T5 temper provides exceptional durability and corrosion resistance for long-term commercial use.
  • Advanced Silicone Sealing: Synthetic rubber polymer siloxane offers excellent flexibility, memory, and resistance to ozone, UV, and aging.
  • Fire Suppression Compatibility: Specifically recommended for areas using FM200 or Halon fire suppression systems with flame-resistant properties.
  • BHMA Certification: Certified to ANSI/BHMA A156.22 performance tests for heat and cold ensuring reliable performance standards.
  • Beveled Door Compatibility: Designed to fit beveled edge doors with overlapping configuration for optimal sealing.
  • Complete Hardware Included: Furnished with #8 X 1" FH U/C SMS fasteners for straightforward 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 BHMA certification to ANSI/BHMA A156.22 performance standards. The advanced siloxane sealing technology provides exceptional temperature resistance and longevity in demanding commercial environments. Engineered for demanding commercial applications where dependable sealing 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 158SA 84 – Frequently Asked Questions

1) Will the NGP 158SA astragal work on a beveled edge door?
Yes. The 158SA is an overlapping astragal built for beveled edge doors, so the overlap seats correctly against the bevel on the inactive leaf of a pair. On a square edge door the overlap geometry won't sit the same way. For a double door where you need an adjustable or split seal instead, the Pemko 300 Series adjustable astragal or the Pemko 369 split astragal are the other shapes we carry.
2) Is the NGP 158SA astragal certified to any door gasketing standard?
It's BHMA certified to ANSI/BHMA A156.22, specifically the heat and cold performance tests in that standard. A156.22 is the standard covering door gasketing and edge seals, which is the line a spec writer or institutional buyer usually wants confirmed on a submittal.
3) Which astragal should I use on a room with FM200 or Halon fire suppression?
The NGP 158SA is the one recommended for FM200 and Halon suppressed spaces. Its silicone seal is a synthetic rubber polymer siloxane with flame resistant properties, which is why it's called out for those rooms. Data centers, server rooms, and records vaults are the usual case, where the seal has to hold the agent concentration in the room without degrading.
4) What's the difference between an overlapping astragal and a lock astragal?
They solve different problems. The NGP 158SA is an overlapping astragal with a silicone seal, mounted the full height of the door to close the gap between a pair of doors and seal it against air, smoke path, light, and suppression agent. A lock astragal like the Trimco 5001 or the shorter Trimco 5002, at 1-9/16 by 6 inches, is a short stainless steel piece that goes at the lock only, to guard the latch area on doors with mortise or cylindrical locks. If you want the gap sealed for its full height, the 158SA is the piece. If you only want to cover the latch, the lock astragal is.
5) What should I use instead of the NGP 158SA if the pair of doors is fire rated?
Look at the Pemko 369 split astragal seal with pile brush insert, which is a fire rated aluminum astragal seal measuring 13/32 inch by 11/32 inch. It is a split design, meaning the seal is applied to both leaves of the pair rather than overlapping from one leaf onto the other, and it seals with a pile brush insert rather than silicone. The NGP 158SA is certified to ANSI/BHMA A156.22 for heat and cold performance and is recommended for areas using FM200 or Halon fire suppression systems, which is a different qualification from a fire rated door assembly. On a labeled pair, the fire rating on the 369 is the one to check against the door label.
6) What is the closest equivalent to the NGP 158SA overlapping astragal from another manufacturer?
The nearest counterpart is the Cal-Royal EAST-501 aluminum T-astragal with vinyl insert for double doors. Both are aluminum astragals that seal the meeting stiles of a pair, but the sealing element differs: the NGP 158SA carries a silicone seal of synthetic rubber polymer siloxane rated from -100 F to 500 F and certified to ANSI/BHMA A156.22 heat and cold performance tests, while the EAST-501 uses a vinyl insert. The 158SA is also an overlapping profile shaped to fit beveled edge doors, where the EAST-501 is a T-astragal profile. If the opening runs hot or cold, or the specification calls out A156.22, the silicone seal on the 158SA is the one that carries that certification.
7) Do I need to buy screws separately for the NGP 158SA astragal?
No, fasteners come with it. The 158SA is furnished with #8 x 1 inch flat head undercut sheet metal screws, so you have what you need to mount it to the door face. You'll still want to lay the astragal out and pre-drill on a hollow metal or wood door before driving them.
8) Will a silicone astragal hold up in a freezer door or a boiler room?
The 158SA seal is rated from -100 F to 500 F and keeps its flexibility and memory at both ends, so cold storage entries and mechanical or boiler rooms are both within range. The siloxane compound also resists ozone, UV, and aging, which matters on an exterior pair that sees direct sun.
9) What are my options if the gap between my double doors is uneven?
An overlapping astragal like the NGP 158SA covers a consistent gap and depends on the leaves hanging true against a beveled edge. Where the gap varies down the height, the Pemko 300 Series adjustable astragal uses a self adjusting pile brush to take up the variation, and the Cal-Royal EAST-501 is a T-astragal with a vinyl insert that sits in the gap rather than overlapping the face. Straighten the doors and the 158SA gives you a silicone seal; live with the variation and the adjustable brush type is the tolerant one.
10) We need an astragal that works around the lockset on a pair of doors. Does the NGP 158SA handle that?
For hardware at the meeting stile, the Trimco 5001 lock astragal in stainless steel is made for use with mortise or cylindrical locks, and the Trimco 5002 lock astragal in stainless steel at 1-9/16 inches by 6 inches is made for use with cylindrical locks. Those pieces are sized and prepped around the lock. The NGP 158SA is a continuous 84 inch overlapping astragal in anodized aluminum with a silicone seal running its length, furnished with number 8 by 1 inch flat head undercut sheet metal screws. Openings that need both continuous sealing and clearance at the lock are typically handled with the lock astragal at the hardware and the full length seal elsewhere on the stile.
11) The meeting stiles on our double doors are out of alignment. Is there an astragal that tolerates a gap that varies top to bottom?
The Pemko 300 Series adjustable astragal with self-adjusting pile brush for double doors is built for that condition, and the self-adjusting brush takes up variation in the gap along the height of the pair. The NGP 158SA is an overlapping astragal with a fixed silicone seal profile designed to fit beveled edge doors, so it seals best against a consistent meeting stile. On an older pair that has racked or settled, the adjustable 300 Series addresses the alignment; on a square, consistent pair, the 158SA silicone seal covers the temperature range from -100 F to 500 F.
12) What is the difference between a silicone seal astragal like the NGP 158SA and a pile brush astragal?
The sealing element is the whole difference. The NGP 158SA uses a synthetic rubber polymer siloxane silicone seal that stays flexible from -100 F to 500 F and resists ozone, UV and aging, and it is BHMA certified to ANSI/BHMA A156.22 heat and cold performance tests. The pile brush astragals in the same duty, the Pemko 300 Series adjustable astragal with self-adjusting pile brush and the Pemko 369 split astragal seal with pile brush insert, seal with brush pile instead. Brush pile accommodates movement and irregular gaps at the meeting stile; a silicone seal makes continuous contact and carries the temperature and A156.22 performance. Specifying facilities standardizing on one seal type across a building should pick the element first, then the profile.
13) Is an overlapping astragal or a split astragal the right choice for a pair of doors?
It depends on whether both leaves are active. An overlapping astragal like the NGP 158SA mounts to one leaf and laps over onto the other, so it establishes an order of operation for the pair and its 84 inch anodized aluminum extrusion is profiled for beveled edge doors. A split astragal seal such as the Pemko 369, an aluminum fire rated seal measuring 13/32 inch by 11/32 inch with a pile brush insert, puts a seal on each leaf so the two halves meet, which suits a pair where both leaves need to operate independently. Confirm which the opening needs before ordering, because the two are not interchangeable at the meeting stile.
14) What is the NGP 158SA astragal made of and will it corrode outdoors?
Extruded aluminum alloy 6063 with a T5 temper, supplied in an anodized aluminum finish. That's the standard architectural extrusion alloy, and the anodizing gives it corrosion resistance for exterior pairs and coastal or wash down interiors. Anodized aluminum is the only finish the 158SA is offered in.
15) Which astragal matches a stainless steel hardware finish on a pair of doors?
The Trimco 5001 and Trimco 5002 lock astragals are both stainless steel, so they read with stainless trim at the meeting stile, though both are lock astragals rather than full height seals. Among the full length aluminum astragals, the NGP 158SA is anodized aluminum in aluminum alloy 6063 T5 temper, and the Cal-Royal EAST-501 is an aluminum T-astragal with a vinyl insert. Property managers matching a run of openings should decide the material first, because the aluminum astragals will not match a stainless run and the stainless lock astragals do not seal the full height of the stile.
How fast can I get the NGP 158SA 84 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 158SA 84 come with a warranty?
Absolutely. The NGP 158SA 84 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 158SA 84?
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 158SA 84 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!