Product Description
Armstrong 4000-L Pre-Charged ASME Bladder Expansion Tank – 1056 gal (3992 L)
The Armstrong 4000-L is a pre-charged ASME bladder expansion tank with a heavy-duty, replaceable butyl bladder for closed hydronic heating and cooling systems. The full-acceptance bladder keeps system water off the steel shell, preventing corrosion and waterlogging. Tank volume is 1056 gal (3992 L) with an acceptance volume of 1056 gal (3992 L), rated for a maximum working pressure of 125 psi (862 kPa).
| Model | 4000-L |
| SKU | 4000-L |
| Tank volume | 1056 gal (3992 L) |
| Acceptance volume | 1056 gal (3992 L) |
| System connection | 2.00" (51 mm) NPT |
| Drain plug | 0.75" (19 mm) |
| Maximum working pressure | 125 psi (862 kPa) |
| Working temperature | -20°F to 240°F (-29°C to 115.5°C) |
| Factory pre-charge | 40 psi (276 kPa) standard, field adjustable |
| Shipping weight | 2238 lb (1015 kg) |
Design & Submittals
Materials of construction
- Shell: Carbon steel
- Bladder: Heavy duty butyl, replaceable
Dimensions – inches (mm)
| A | B | D |
|---|---|---|
| 60.00 (1524) |
105.00 (2667) |
54.00 (1372) |
A = diameter. B = height. D = ring base diameter. Dimensions are for reference only; certified dimensions available on request.
Notes
- Not for domestic potable water systems.
- Designed and constructed per ASME Section VIII, Division 1.
- California code sight-glass and seismic clips available as an option.
- Allow a minimum of 18" (457 mm) clearance for system piping.
Documents
Warranty
Covered by the Armstrong Fluid Technology manufacturer's warranty.
- Armstrong Terms of Sale & Warranty – Canada (PDF)
- Conditions de vente et garantie Armstrong – Canada, français (PDF)
Installation, Maintenance, Parts Kits & Manuals
- L Bladder Expansion Tank – Installation & Operating Instructions (PDF)
- Bladder Tanks – Replacement Instructions (PDF)
- Bladder Expansion Tanks – Parts List (PDF)
Replacement parts and expansion tank sizing help – call (416) 236-2338 or email sales@bramhambros.com.
