Accumulator Bladder Repair Kits
SK Series: 1QT-16.5G
SKL Series: 40-150G
High Quality Materials Made in US, Europe.
features
- High Quality Rubber Compound and Seals, Gas Valves
- Various Rubber Compound Options
- Two-piece bladder stem and gas valve design, saving cost for replacement
- Two Groups of Product as High Pressure (RK Series) and Low Pressure (RKL Series) by applications
- Both US sizes in Gallons and Metric sizes in Liters
- Custom stem and bladder sizes are available
- Interchangeable with most standard accumulators on the market
Capacity
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RK Series-
Standard sizes: 1QT, 1G, 2.5G, 5G, 10G, 11G, 12.5G, 15G, 16.5G, or 1L, 2.5L, 4L, 5L, 6L, 10L, 12L, 20L,24L, 32L, 42L, 50L, 57L -
RKL Series-
Standard sizes: 150L/40G, 200L/53G, 275L/73G, 300L/80G, 375L/100G, 475L/125G, 530L/140G, 575L/150G
Material Options
- Bladders, Major Available Compounds (click to see details):
Code: 01
Abbreviation: N33
Description: Standard Nitrile
NBR, BUNA-N
Temperature Range: -20C to +90
C (-4F to 194F)
Comments: Mostly used, mineral, silicon and lubricating oils, industrial water, glycols, non-flammable liquids (HFAHFB-HFC), aliphatic hydrocarbons, butane, diesel oil, kerosene, fuel oils etc.
Abbreviation: N28
Description: Low ACN content Nitrile
Temperature Range: -40C to +80C (-40F to 176F)
Comments: Low Temp. Nitrile.
Code: 03
Abbreviation: N40
Description: High ACN content Nitrile.
Temperature Range: -10C to +105C (14F to 221F)
Comments: High Temp. Nitrile, gasoline.
Code: 04
Abbreviation: NH1
Description: Hydrogenated Nitrile
Temperature Range: -50C to +130C (-58F to 266F)
Comments: Better Behavior NBR with both extreme high and
low temperaturers performance.
Code: 05
Abbreviation: ECO
Description: Hydrin
Temperature Range: -30C to +115C (-22F to 239F)
Comments: Standard Hydrin.
Code: 06
Abbreviation: EP1
Description: EPDM
Temperature Range: -20C to +120C (-4F to 248F)
Comments: For phosphate-ester media, break fluids, hot water, leaching fluids, detergents, water-glycol (HFC), many acids and bases, saline solutions, skydrol, etc.
Code: 07
Abbreviation: IIR
Description: Butyl
Temperature Range: -20C to +110C (-4F to 230F)
Comments: Phosphoric esters (HFD-R), fyrquel, hot water,
ammonia, caustic soda, some kinds of Freon (22-31-502), glycolbased brake fluids, some acids, alcohols, ketones, esters, skydrol 7000, etc.
Code: 08
Abbreviation: FKM
Description: Flouroelastomer- Viton
Temperature Range: -20C to +140C (-4F to 284F)
Comments: The same as with standard NBR with excellent performance at both high and low temperature
Why buy accumulator bladders from us?
Detailed guide to buying and storing accumulator bladders. Tips of bladder failure preventions.
Click HereRK Series
- OD=8", Size: 1G-16.5G
- * Komatsu type bladders, non-stocking specially made
- ** Tolerance: +/- 2.5%
Stem Options, RK Series
- A- .62”-18 UNF 2A Screw Thread w/ 0.305”-32 Valve Core, Single (1QT only)
- C- 7/8”-14 UNF Screw Thread + M10X1.5 Gas Valve Thread (Metric)
- E- 2"-12 UNF Screw Thread + 1/2"-20 UNF Gas Valve Thread
- G- 2"-12 UNF Screw Thread + 1/2"-20 U-12 UN 2A Gas Valve Thread (Komatsu Type)
- B- 7/8”-14 UNF Screw Thread + 1/2”-20UNF 2B Gas Valve Thread (Std.)
- D- 7/8"-14 UNF Screw Thread + 3/8"-24 UNF Gas Valve Thread
- F- M50X1.5 Screw Thread + 7/8"-14 UNF Screw Thread w/0.305”-32 Valve Core, Single (Hydac Type)
Material: Carbon Steel, Stainless Steel
Custom stems available by request with drawing approval
What’s Inside the Package?
Standard Bladder Repair Kit Competitive Crossover*
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Oil Air |
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RK-002-01(B) (R702928) |
(E)702928 |
2054034 |
AI-1QT-3KT |
N/A |
N/A |
A1QT-300 |
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RK-01-01(B) (R702956) |
(E)702956 |
2054035 |
AI-1-3KT |
N/A |
N/A |
A-1-300 |
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RK-02-01(B) (R702970) |
(E)702970 |
2054036 |
AI-2.5-3KT |
BK-50-2.5N |
EHV 10-330/90-A25GB
19035800225 |
A-2.5-2-300 |
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RK-05-01(B) (R702984) |
(E)702984 |
2054037 |
AI-5-3KT |
BK-50-5N |
EHV 20-330/90-A25GB
19036000225 |
A-5-2-300 |
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RK-10-01(B) (R702998) |
(E)702998 |
2054038 |
AI-10-3KT |
BK-50-10N |
EHV 32-330/90-A25GB
19036100225 |
A-10-2-300 |
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RK-11-01(B) (R703012) |
(E)703012 |
N/A |
AI-11-3KT |
BK-50-11N |
EHV 42-330/90-A25GB
19061100225 |
A-11-2-300 |
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RK-12.5-01F |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
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RK-15-01(B) (R703026) |
(E)703026 |
2054039 |
AI-15-3KT |
BK-50-15N |
EHV 57-330/90-A25GB
19061200225 |
A-15-2-300 |
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RK-16.5-01F |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
- * Our bladder repair kits are direct replacement of Parker and Accumulators. For other international brands, please check with our technical support to confirm.
Why Customers Like Our Two-Piece Gas Valve Stems
Our standard bladder gas stem is two-piece type with separated gas valve included in the bladder repair kit. This kind of design is easier and safer to use and replacement, saving a lot of potential costs.
RKL Series
- OD=21", Size: 40G-150G/150L-575L
- * Tolerance: +/- 2.5%
Stem Options, RKL Series
Material: Carbon Steel, Stainless Steel
Custom stems available by request with drawing approval
Gas Valves
Valve Core
Valve Core
Valve Core
Valve Core +Metal Seal
Metal Seal, Military Type
Metal Seal, Military Type
Metal Seal, Military Type
- A-SAE#3, 3/8"-24 UNF
- B-SAE#5, 1/2"-20 UNF
- C-0.305"-32 Schrader Type Valve
- Material: Stainless Steel, Made in the USA.
Need Technical Help?
Need help on accumulator bladder compound selection? Check our blog technical articles or contact us.
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