AJ Application Valve Group
For Accumulator

AJ type accumulator control valve group is composed of stop valve, safety valve and unloading valve, etc. It is installed between the accumulator and the hydraulic system to control the on-off, overflow, unloading, etc. of the oil of the animal accumulator. Working conditions. Unloading has manual unloading or electromagnetic unloading.

Advantages of
AJ Application Valve Group

Integrated Functions

Combines stop, safety, and unloading valves in one unit.

Dual Unloading Options

Supports manual and electromagnetic unloading for flexible operation.

Reliable Control

Ensures stable on-off, overflow, and pressure regulation performance.

Enhanced Safety

Safety valve prevents overpressure and protects hydraulic system components.

Ordering Code & Technical Parameter You Can Choose

AJ

Code Name:

Application Valve
Group for Accumulator

-※

C-Custom
No -Standard

-※

UnloadingType:

S-Manual(standard)

D-electromagnetic

※

NominalDiameter:

10/20/32mm

※

Pressure of
Protection Valve:
a-6.3MPa

b-16MPa

c-25MPa

H-31.5MPa

-※

Structure(mode):

Z-direct

over flow valve

/※

Thread of
Accumulator
Connector:
M27x2

M42x2

M60x2

M72x2

-※

6k/6B
D24V/C220V

Model DN (mm) PN (Mpa) Dimension (mm)
L1 L2 L3 L4 W1 W2 W3 W4 H1 H2 H3 H4 M1 M2
AJS-10※Z※ 10 10 20 31.5 25 68 90 164 42 50 22.5 25 44 24 55 M14x1.5
AJS-20※Z※ 20 47.5 114 135 209 42 95 40 47.5 59 38 20 66
AJS-32※Z※ 32 47.5 114 135 209 42 95 42 47.5 59 38 20 74
Model Dimension (mm) Weight (Kg)
H5 H6 H7 H8 D1 D2 D3 DM
AJS-10※Z※ 85 31/35 16/23 120 22 17 10 M27X2/M42X2 4
AJS-20※Z※ 100 63/75 23/30 200 26 22 10 M42X2/M60X2 13
AJS-32※Z※ 100 75/81 30/35 200 42 22 10 M60X2/M72X2 15
Model DN (mm) PN (Mpa) Dimension (mm)
L1 L2 L3 L4 W1 W2 W3 W4 W5 H1 H2 H3 M1 M2
AJD-10※Z※ 10 10 20 31.5 25 68 90 164 42 50 22.5 25 110 44 24 M14x1.5
AJD-20※Z※ 20 47.5 114 135 209 42 95 40 47.5 110 59 38 20
AJD-32※Z※ 32 47.5 114 135 209 42 95 42 47.5 110 59 38 20
Model Dimension (mm) Weight (Kg)
H4 H5 H6 H7 H8 D1 D2 D3 DM
AJD-10※Z※ 54 85 31/35 16/23 120 22 17 10 M27X2/M42X2 4
AJD-20※Z※ 66 100 63/75 23/30 200 26 22 10 M42X2/M60X2 13
AJD-32※Z※ 74 100 75/81 30/35 200 42 22 10 M60X2/M72X2 15

Booking Note

①The full name of the model code must be stated when ordering, such as: working pressure is 31.5Mpa, diameter is 20mm, standard type, accumulator with accumulator interface thread M42x2 Control valve group: AJS-20HZ/M42x2
② If there are special requirements for the accumulator control valve group, please consult with our company.
③The company reserves the right to change the design without prior notice.

Qualification Certificate​

The company has been rated as a "trustworthy enterprise in product quality" by the Technical Supervision Bureau for five consecutive years.

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Why Choose Us

We have our own production workshops and warehouses, equipped with complete production and quality testing equipment.

After-sales Service

We provide professional, accurate, patient, and efficient solutions to your hydraulic accumulator manufacturing problems.

Customer Philosophy

Our company's customer philosophy is to create irreplaceable value for our customers through high-quality products and services.

Manage
Philosophy

Our management belief is to respect value and pursue a management philosophy of autonomy and self-motivation.

High-quality Products

Innovation adds value to our products. We have a strong R&D team with the strength to face challenges and bring our ideas to market.

FAQ

The following are solutions to common problems. If you have further technical questions, please feel free to contact us.

Q1: What is the main function of an accumulator?
A: An accumulator stores hydraulic energy in the form of pressurized fluid. It helps maintain system pressure, absorb shocks, and provide additional flow during peak demand or emergency situations.

Q2: What are the common types of accumulators?
A: The most common types are bladder, piston, and diaphragm accumulators. Each type differs in structure and is selected based on pressure requirements, capacity, and application conditions.

Q1: What is included in an accumulator station?
A: An accumulator station typically includes the accumulator unit, pump, motor, control valves, pressure gauges, safety components, and a hydraulic reservoir, all integrated into a single system.

Q2: Why is an accumulator station important in hydraulic systems?
A: It stabilizes pressure, reduces energy consumption, minimizes pump wear, and ensures reliable system performance during fluctuating load conditions.

Q1: What are common accumulator accessories?
A: Common accessories include safety blocks, shut-off valves, pressure gauges, charging kits, mounting brackets, and protective covers, all of which support safe operation and maintenance.

Q2: Why are accessories necessary for accumulators?
A: Accessories enhance safety, enable proper monitoring, simplify maintenance, and ensure the accumulator operates efficiently and within design limits.

Q1: What is the function of a safety valve block?
A: A safety valve block protects the accumulator and system by controlling pressure, isolating the accumulator when needed, and safely releasing excess pressure.

Q2: What components are typically found in a safety valve block?
A: It usually includes a relief valve, shut-off valve, pressure gauge port, and sometimes a drain or discharge valve, all integrated into a compact unit for safety and convenience.

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