Buccma Accumulator (Tianjin) Co., Ltd.
Add: No. 2 Zhonghui Road, Jinnan Economic Development Area, Shuangqiao River Town, Jinnan District, Tianjin City, China
Tel.: +86-22-88518525
Fax: +86-22-88519307
Contact Person: Kevin.Charles
E-mail: Kevin@buccma.com

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    1. Bladder AccumulatorThe bladder accumulator is comprised of pressure resistant shell, elastic bladder, gas valve, poppet valve, fluid port and other components. This product could be made into different sizes to fit for a number of hydraulic systems, and it shows some superb properties as listed below.
    1. Piston AccumulatorAs the name implies, our piston accumulator uses a piston to separate gas and fluid, and a sealing system is applied between the piston and the internal surface of the cylinder. This product shows the advantage of long service life and superior compatibility with ambient temperatures, but it is not very sensitive which makes it not applicable for pulsation dampening.
    1. Diaphragm AccumulatorThe diaphragm accumulator is constructed by combining two hemispherical shells together, and a rubber diaphragm is set between these two halves to separate gas and fluid. Our product shows an extremely small weight to volume ratio, and it is very sensitive. So, it can offer remarkable performance when dampening pulsation in low pressure hydraulic lines. Meanwhile, the rubber diaphragm has a small area, which means gas expansion is limited. As a result, the gas precharge pressure couldn't be too high, and the effective volume is not too big.
    1. Accumulator CombinationOur product is designed on the basis of requirements of hydraulic stations, such as working pressure, working condition, flow rate and other parameters, to ensure that it best suits our customer's needs, and good compatibility is also guaranteed.
      Compared with similar devices supplied by other manufacturers, our accumulator combination is ASME, CE and SELO certificated. Moreover, owing to the superb quality and performance, our production standard is taken as the Chinese national standard, and we are dominating this industry in China.
    1. Hydraulic Accumulator BladderThe accumulator is a specially designed device used to store fluid under pressure. As we know, fluid can't be compressed. So, we take advantage of the compressibility of inert gas to realize this purpose. Our hydraulic accumulator bladder is installed inside the accumulator shell to store inert gas, and energy will be stored and released owing to the good elasticity of this rubber-made product.
    1. Hydraulic Accumulator Charging KitThe hydraulic accumulator charging kit is mainly composed of storage case, valve body (with M28×1.5 internal thread), central spindle, non-return valve, pressure relief valve, pressure gauge, charging hose (typically 3 meters long), connection adapter, spanner wrench, gas valve torque wrench, pull rod and extension segments, etc.
    1. Hydraulic Accumulator Safety BlockOur hydraulic accumulator safety block mainly contains two types, one is ASV1/AQF, and the other is ASV3/AJ.
      The AQF series hydraulic accumulator safety block is a scientifically designed product. It usually works as an accessory of accumulator for safety and shut-off purposes, and it is installed between accumulator and hydraulic system.
    1. Hydraulic Accumulator ClampWhen mounting an accumulator, its shell and connection joint should not be faced with external stress, and this is extremely important when mounting large accumulators or horizontal installation method is applied. Under this condition, fastening devices, typically hydraulic accumulator clamp bracket and U bolt, must be adopted to fasten the accumulator, thereby avoiding dangerous vibration and inclination.
    1. Hydraulic Accumulator BracketFor a hydraulic accumulator bracket with outer diameter of 229mm, it should be specified as BB-229. This product is mainly used to support accumulators to avoid sliding if they are installed vertically.
    1. Mobile Nitrogen Charging UnitAs indicated by its name, the mobile nitrogen charging unit is especially designed to fill nitrogen gas into bladder accumulator, piston accumulator, diaphragm accumulator and other high pressure vessels. Our product has a maximum charging pressure of 42Mpa, and it shows the advantage of simple operation as well as excellent mobility.
    1. Hydraulic Oil Filter VehicleOur products are divided into 3-stage type and 5-stage type, and they are characterized by compact structure, beautiful appearance, reliable performance, convenient maintenance, high filtration precision (NAS 6), etc.
      In hydraulic systems, nearly 90% of failures are caused by improper cleanliness of working medium, namely the hydraulic oil. Given this, our technicians take advantage of their years of experience in studying relevant cases to successfully develop this BMFC hydraulic oil filter vehicle, perfectly improving hydraulic oil quality and lowering failure rate.
    1. Hydraulic Accumulator Repair ToolThe bladder pull rods are available in various lengths to fit for different sized bladders.
      The gas valve core tool is used to remove and reinstall gas valve core.
      The spanner wrench is applicable for diverse accumulators to mount and dismount oil valve.
    1. Nitrogen Gas BottleProduct code: NB refers to back-up nitrogen gas bottle
      Structure: S for single nozzle, D for dual nozzle, and N means no nozzle
      Outer diameter of bottle in mm
      Nominal volume in litter or gallon
      Nominal pressure in Mpa or psi
    1. Industrial Hydraulic SystemUp to now, we have supplied two sets of graphite lubricant system for Tianjin Pipe (Group) Corporation, one set of graphite lubricant system and one set of nitrogen blowing and borax spraying deoxidization system for Pangang Group Chengdu Steel and Vanadium Co., Ltd., two sets of hydraulic systems for Xuanhua Iron and Steel Group Co., Ltd. etc. In addition, our graphite lubricant system for mandrel gains two China national patents, and the patent numbers are 200420085788.2 and 200410093809.X.
    1. Hydraulic Component Testing CentreOur hydraulic component testing centre is capable of testing and repairing various kinds of hydraulic components and high-pressure plunger pumps that made by worldwide manufacturers, and it is highly appreciated by our customers.

Major Products
As a professional accumulator manufacturer, we could provide customers with bladder accumulator, piston accumulator, diaphragm accumulator, accumulator combination, hydraulic accumulator accessory, hydraulic control system, etc.

Introduction
An accumulator is a type of pressure vessel used to store and release energy, and it takes advantage of the compressibility of inert gas to realize this purpose. For accumulator manufacturers in China, two mandatory certificates are required which are Design Certificate of Special Equipment and Manufacture Certificate of Special Equipment.

Applications
Our hydraulic accumulators are mainly used in mining machinery, engineering machinery, petroleum and natural gas equipment, wind power generation industry and many others. Here are some major functions of our product.

1. Pulsation Dampening
When piston or diaphragm pump is running, pulsation is generated in the hydraulic line, and this phenomenon will do damage to hydraulic components or instruments easily. Given this, an accumulator should be installed close to the pump to dampen pulsation, thereby well protecting the hydraulic components and instruments.

2. Leakage Compensation
If static pressure needs to be maintained at a constant value for a long time, an accumulator is highly recommended because it can compensate the pressure loss that is caused by leakage. Meanwhile, it also realizes force equilibrium when the hydraulic system pressure is too high, and the typical application is road compactor.

3. Shock Absorption
When valves of a pipeline are suddenly shut off, the fast-moving working medium that is rushing through the pipe will be brought to a quick halt, creating a sort of shock wave and a hammering noise. This is called water hammer or hydraulic shock, and it may damage pipes, joints, valves and other components. However, if an accumulator is properly installed, water hammer will be reduced to a large extent.

4. Emergency Operation
When power failure occurs out of blue, an accumulator could supply enough energy to help transmission mechanisms or valves move back to safe positions, thus avoiding potential dangers.