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Bladder Accumulators

Freudenberg / TOBUL Bladder Accumulators



– Widely Accepted Industry-Standard Design
– Quick Response to Fluid System Demands
– Very Contaminant Tolerant
– Completely Repairable
– A Variety of Models Available

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Reference Material:

PDF_24Bladder Accumulators (PDF)

PDF_24Top Repairable Bladder Accumulators (PDF)


Freudenberg Sealing Technologies / Tobul Bladder Accumulators are designed for industrial and commercial fluid power applications by making use of the relative compressibility of an inert gas versus a fluid, and are one of the most commonly used components in industrial and commercial fluid power systems worldwide. They are utilized for a wide variety of applications, including:

energy storage, shock or pulsation dampening, leakage compensation, thermal expansion, energy conservation/supplement pump flow, noise reduction, and improved response time.

Our Bladder Accumulators are constructed of high strength seamless chrome-moly carbon steel shells, with high grade elastomeric bladders, which are assembled in accordance with ASME pressure vessel standards. Available in a variety of industry-standard capacities and pressures, the bladder type excels at absorbing system shocks and pulsations, especially those of high frequency/low modulation

CERTIFICATIONS

ASME/NB
CE/PED
SELO


 


BOTTOM REPAIRABLE TBR MODELS

Bottom repairable bladder-type designs are the most commonly found units in the marketplace. Fluid capacities are generally limited to a small variety of sizes (one quart to fifteen gallons/approximately 1 Liter to 57 Liters).

General Design Data
Maximum Working Pressure: 3,000 PSI (207 Bar)
(Buna/Nitrile) Operating Temperature: -20° to +200° F (-28° to 93° C)
Bladder for petroleum base oil.
Shell ASME U stamp OPTIONAL.
Specifications subject to change without notice.

TBR30 (1 Quart) – 3,000 PSI

Part #Old Part #Gas CapacityFluid CapacityDry Weight(C) (D) (E) Fluid Port
TBR30-.2NMD*TBR30-.2-N73 In3.25 Gallons10 lbs.2.125"1.375"SAE-16 or 1" NPT
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®

TBR30-1-quart

TBR30 (1 Gallon) – 3,000 PSI

Part #Old Part #Gas CapacityFluid CapacityDry Weight(C) (D) (E) Fluid Port
TBR30-1NMEA*TBR30-1-N235 In31 Gallon34 lbs.4"2.38"SAE-20 or 1.25" NPT
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®


TBR30 – 3,000 PSI

Part #Old Part #Gas CapacityFluid CapacityDry Weight(A) (B) Fluid Port
TBR30-2.5NMFA*TBR30-2.5-N600 In32.5 Gallons80 lbs.21"SAE-24 or 2" NPT
TBR30-5NMFA*TBR30-5-N1,203 In35 Gallons120 lbs.33.25"SAE-24 or 2" NPT
TBR30-10NMFA*TBR30-10-N2,259 In310 Gallons220 lbs.54"SAE-24 or 2" NPT
TBR30-11NMFA*TBR30-11-N2,535 In311 Gallons240 lbs.59.5"SAE-24 or 2" NPT
TBR30-15NMFA*TBR30-15-N3,440 In315 Gallons305 lbs.77.5"SAE-24 or 2" NPT
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®




TOP REPAIRABLE TBRT MODELS

Top repairable bladder-type designs are readily available in the marketplace, but much less commonly seen than bottom repairable units. TBRT’s are more expensive than TBR’s since an additional gas port body and anti-extrusion ring is necessary to completely seal the accumulator shell.
Top Repairable Versus Bottom Repairable:
The distinct advantage of a top repairable unit is the fact that a unit may be repaired without dismounting an accumulator from the system. As long as the unit can be isolated and the system pressure relieved, the top gas port assembly can be accessed and a replacement bladder installed.

General Design Data
Maximum Working Pressure: 3,000 PSI (207 Bar)
(Buna/Nitrile) Operating Temperature: -20° to +200° F (-28° to 93° C)
Bladder for petroleum base oil.
Shell ASME U stamp OPTIONAL.
Specifications subject to change without notice.

TBRT30 – 3,000 PSI

Part #Old Part #Gas CapacityFluid CapacityDry Weight(A) (B) Fluid Port
TBRT30-2.5NMFA*TBRT30-2.5-N600 In32.5 Gallons80 lbs.21"SAE-24 or 2" NPT
TBRT30-5NMFA*TBRT30-5-N1,203 In35 Gallons120 lbs.33.25"SAE-24 or 2" NPT
TBRT30-10NMFA*TBRT30-10-N2,259 In310 Gallons220 lbs.54"SAE-24 or 2" NPT
TBRT30-11NMFA*TBRT30-11-N2,535 In311 Gallons240 lbs.59.5"SAE-24 or 2" NPT
TBRT30-15NMFA*TBRT30-15-N3,440 In315 Gallons305 lbs.77.5"SAE-24 or 2" NPT
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®




OPEN TOP BLADDER ECONOLATER II MODELS

The “EconoLator II” is a Tobul product series which is a transition from piston-type to bladder-type accumulators, and incorporates characteristics of both designs.

Utilizes a cylindrical steel cylinder with heads similar to piston-types. The fluid cap (bottom) is precision machine-welded into the steel cylinder to form a durable vessel.

Utilizes an upper cap and threaded ring assembly to retain and seal the open-topped bladder, providing a simple “top-repairable” advantage; e.g., unit does not have to be removed from a vertically mounted application in order to replace bladder as long as the accumulator can be isolated from system pressure and physically accessible.

EBR20 – 2,000 PSI

General Design Data
Maximum Working Pressure: 2,000 PSI (138 Bar)
(Buna/Nitrile) Operating Temperature: -20° to +200° F (-28° to 93° C)
Bladder for petroleum base oil.
Specifications subject to change without notice.

Part #Old Part #Gas CapacityFluid CapacityDry Weight(A) (B)(C) Fluid Port(D)
EBR20-1NA9EBR20-3029 In30.12 Gallons11 lbs.10"9.50"SAE-83.25"
EBR20-2NABEBR20-6058 In30.25 Gallons25 lbs.10.125"8.875"SAE-124.625"
Replacement Bladders
TypePart #
1 PintEB-1N*
1 QuartEB-2N*
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®


EBR30 – 3,000 PSI

General Design Data
Maximum Working Pressure: 3,000 PSI (138 Bar)
(Buna/Nitrile) Operating Temperature: -20° to +200° F (-28° to 93° C)
Bladder for petroleum base oil.
Specifications subject to change without notice.

Part #Old Part #Gas CapacityFluid CapacityDry Weight(A) (B)(C) Fluid Port(D)
EBR30-1NA9EBR30-3029 In30.12 Gallons11 lbs.10"9.50"SAE-83.25"
EBR30-2NABEBR30-6058 In30.25 Gallons25 lbs.10.125"8.875"SAE-124.75"
Replacement Bladders
TypePart #
1 PintEB-1N*
1 QuartEB-2N*
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®


EBR50 – 5,000 PSI

General Design Data
Maximum Working Pressure: 5,000 PSI (138 Bar)
(Buna/Nitrile) Operating Temperature: -20° to +200° F (-28° to 93° C)
Bladder for petroleum base oil.
Specifications subject to change without notice.

Part #Old Part #Gas CapacityFluid CapacityDry Weight(A) (B)(C) Fluid Port(D)
EBR30-1NA9EBR30-3029 In30.12 Gallons11 lbs.10"9.50"SAE-83.25"
EBR30-2NABEBR30-6058 In30.25 Gallons25 lbs.10.125"8.875"SAE-124.75"
Replacement Bladders
TypePart #
1 PintEB-1N*
1 QuartEB-2N*
* = Bladder Seal Material Codes: N = Buna, B = Butyl, E = EPR, V = Viton®



3,000 PSI Bladder Repair Kits

Includes: (1) Bladder, (1) Gas Valve and O-Ring, (2) Poppet Valve O-Rings and (2) O-Ring Backups

Part #Old Part #Fluid Capacity
BK30-.2NRB30-.2-NT1 Quart
BK30-1NRB30-1-NT1 Gallon
BK30-2.5NRB30-2.5-NT2.5 Gallons
BK30-5NRB30-5-NT5 Gallons
BK30-10NRB30-10-NT10 Gallons
BK30-11NRB30-11-NT11 Gallons
BK30-15NRB30-15-NT15 Gallons
* = Bladder Seal Material Codes: N = Buna, L = Hydrin (ECO)
*BR instead of BK is a kit without the anti-extrusion ring

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