Foam Bladder Tank


Function Description
The PRl-SAFETY bladder tank is acarbon stell pressure vessel containing an elastomeric sepatation bladder between thewater and foam concentrate .The bladder permits water pressure tobe transfeed to the foam concentate without the two fluids mixing together.

A PRl-SAFETY ration controller, as described in a sepatate date sheet, generates awater pressure drop by means of a reduced cross section where t water stream passes througt it . As the foam concentate pressure is higher than the pressure at the tation controller , the foam starts flowing towarsa the water and mixing at a calibtated tatewhich is dependant on the water flow rate.

Construction Features
- Vertical type on legs or horizontal type on saddles . Legs and saddles are provided with fixing holes .
- Design pressure 175 psi(12 bar ).
- 100% pressure tested according to the applied design code but not less than 251 psi. Water and foam piping ( stainless stell as option )
- Machine welded circuferantial and longitudinal seams for maximum quality and durability
- Welded lifting lugs for easy handling operations
- Welded lifting lugs for easy handling operations
- Thermal relief valve provided on the water side
- Tank equipment with inside protection at any opening to ensure no damage to the
- bladder. Nameplate in corrosion resistant material .
- Nameplate holder to avoid undetected corrosion on the tank's sheel behind the plate
Options:
- Mixing ration selector 3% and 6%
- Flange size :According to customer require from 2 1/2" inch -8 inch
- Flow rate :According to customer requirement
STANDARD DESIGN DATE.
Design pressure : 175 psi(12 bar)
Test pressure: 251 psi(17.3 bar)
Capacity: see tables
Two different design of foam bladder, contents List:
Design A:


|
Capacity |
L |
W |
H |
H |
D |
|
500L |
920 |
1145 |
1820 |
860 |
810 |
|
1000L |
1190 |
1345 |
2100 |
890 |
1010 |
|
1500L |
1290 |
1440 |
2410 |
900 |
1105 |
|
2000L |
1400 |
1545 |
2610 |
900 |
1212 |
|
2500L |
1525 |
1647 |
2720 |
915 |
1312 |
|
3000L |
1620 |
1805 |
2855 |
930 |
1416 |
|
4000L |
1830 |
2010 |
2875 |
970 |
1616 |




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


Application:
The PRl-SAFETY bladder tank, together with ration controllers , form a balanced pressureproportioning system used to mix water and fire fighting foam together to generate an effective extinguishing medi to mix water and fire fighting foam together to generate an effective extinguishing medium.
The bladder tank technology is a reliable and precise mixing method that is wide spread in the fire fighting industry. This method allows the water/foam ration to remain stable by automatically adjustin the variable flow rates and pressure conditions that may occur durinosystem operation.
This feature makes bladder tank particularly suitable for multiple hazard systems ,sprinkler systems and any other system operationg under variable , non predictable flow and pressure conditions.


