Foam Bladder Tank–Suitable for Multi-Scenario Installation

Foam bladder tanks are ideal for municipal, commercial, and industrial facilities requiring reliable fire protection. They are easy to install and maintain, with flexible configurations for projects of all sizes.

Delivering fast and effective suppression, the foam smothers flames and prevents fire spread—providing a reliable and efficient solution for high-level fire protection.

Foam Fire Extinguishing Equipment PDF

Technical Specifications

Mixing Ratio: 3% and 6% selectable
Flange Size: 2.5" to 8", customizable per project requirements
Flow Rate: Customizable to meet project needs
Design Pressure: 175 psi (12 bar)
Test Pressure: 251 psi (17.3 bar)

Workflow

A foam bladder tank is a steel pressure vessel with an internal bladder used to store foam concentrate. When pressurized water flows through the system, a proportioner diverts a portion of the water flow into the annular space of the tank, compressing the bladder and displacing the foam concentrate. The concentrate is then metered and mixed with water in the proportioner to form a foam solution at the required ratio. The foam solution is delivered through piping to foam discharge devices for direct application to the protected hazard for fire suppression.

Features

Configuration: Vertical (with legs) or horizontal (with saddles); both include anchor holes for easy installation.
Piping: Water and foam concentrate piping included (stainless steel optional).
Welding: Circumferential and longitudinal seams are machine-welded for enhanced quality and durability.
Lifting Design: Equipped with welded lifting lugs for safe handling and installation.
Thermal Relief Valve: Installed on the water side to prevent overpressure.
Internal Protection: All openings feature internal protection to prevent bladder damage.
Nameplate: Made of corrosion-resistant material.
Nameplate Bracket: Prevents hidden corrosion behind the nameplate.

Category

Horizontal Foam Bladder Tank
Vertical Foam Bladder Tank

Horizontal Foam Bladder Tank

Horizontal Foam Bladder Tank

Schematic Diagram

Parameters

Table 1：Horizontal Foam Bladder Tank Parameters
Capacity	L （mm）	W （mm）	H （mm）	H （mm）	D （mm）
500 L	920	1145	1820	860	810
1000 L	1190	1345	2100	890	1010
1500 L	1290	1440	2410	900	1105
2000 L	1400	1545	2610	900	1212
2500 L	1525	1647	2720	915	1312
3000 L	1620	1805	2855	930	1416
4000 L	1830	2010	2875	970	1616

Vertical Foam Bladder Tank

Vertical Foam Bladder Tank

Schematic Diagram

Parameters

Table 2：Vertical Foam Bladder Tank Parameters
Capacity	L （mm）	W （mm）	H （mm）	H （mm）	D （mm）
1000 L	1955	1250	1540	930	910
1500 L	2230	1350	1640	930	1010
2000 L	2485	1450	1740	930	1112
2500 L	3010	1450	1740	930	1112
3000 L	3040	1610	1880	960	1216
4000 L	3430	1710	1980	960	1316
5000 L	3670	1810	2080	960	1420
6000 L	3830	1910	2180	960	1520
7000 L	3935	2010	2280	960	1620
8000 L	4300	2010	2280	960	1620
10000 L	4625	2220	2480	960	4625

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