316_S & 318_V Split Astragal
Astragal and meeting stile seals are used to seal the gap between a pair of doors.
Split Astragal seals are installed on the face of both door leaves.
- When installing pairs of fire doors care must be taken to maintain the requirements of NFPA 80 (US)
- Category J gaskets for use with listed steel frames and/or classified steel covered composite, hollow metal doors rated up to and including 3 hours; wood and plastic covered composite doors rated up to and including 1-1/2 hours; and wood core doors rated for 20 minutes (US)
- This profile will no longer be available once inventory is depleted
Key to Inserts
E - EPDM, Solid
M - Magnetic
N - Neoprene or EPDM*
NB - Nylon Brush
P - Pile
PK - PemkoPrene®**
Q - Kerf-in Foam
R - Sponge Neoprene or EPDM*
S - SiliconSeal or Sponge Silicone (see individual part)
SB - Soft Brush
T - ThermoSeal™
TF - Triple Foam
V - Eco-V™
*N: As we “Green,” inserts “N” may be either Neoprene or EPDM.
*R: As we “Green,” inserts “R” may be either Sponge Neoprene or Sponge EPDM.
Over time, these inserts will move to EPDM material.
**PK: In order to best control our customers’ costs some PK (Santoprene™) products may be a silicon based elastomeric material with comparable performance.
A (Mill Finish Aluminium) BDG (Bright Dipped Gold) D (Dark Bronze Anodized) G (Gold Anodized) PW (Painted White Aluminium)
An Astragal is used to seal the gap at the leading edge between a pair of door leaves. The pair can have 'plain' or 'rebated' meeting stiles - the design and suitability of the Astragal will vary accordingly between the two options. Astragals on external pairs of outward opening doors are commonly overlapping Astragals which have a dual function of protecting against weather and providing security as a lock guard. On internal doors Astragals provide protection against smoke ingress as well as providing additional security on locked doors.
Doors are typically the weakest link in any partition designed to have acoustic sealing properties. Astragals, perimeter gasketing, drop seals and door sweeps can all be used to prevent sound from leaking through cracks around the door perimeter.