QFZ Safety Valve Group
For Accumulator
The QFZ type accumulator safety group is composed of a high-pressure ball core globe valve, a direct-acting relief valve and a small globe valve, which has the functions of opening and closing, safety, and unloading valves.
Advantages
of
QFZ Safety Valve Group
Multi-Function Integration
Combines shut-off, safety relief, and unloading in one compact unit.
High Safety Performance
Direct-acting relief valve protects system from overpressure risks.
Reliable Control
Ensures stable opening, closing, and precise pressure regulation.
Compact Structure
Space-saving design simplifies installation and system layout.
Ordering Code & Technical Parameter You Can Choose
QFZ
Code Name:
safety ball Valve Group
H※
Pressure:
Hb-10MPa
Hc-20MPa
Hd-31.5MPa
※
NominalDiameter:
15/25/40/50mm
※
Attended Mode:
F-flange connection
L-thread connection
| Model | DN | PN | Dimension (mm) | Weight | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L1 | L2 | L3 | L4 | H | H1 | H2 | H3 | H4 | H5 | W | W1 | W2 | D | D1 | D2 | DM(S) | ||||
| QFZ-H※15L | 15 | 10 20 31.5 |
85 | 58 | 46 | 68 | 131 | 20 | 28 | 201 | 53 | 20 | 90 | 33 | 28 | 20 | M10X1 | M18X1.5 | M27X2 | 5 |
| QFZ-H※25L | 25 | 90 | 58 | 46 | 68 | 167 | 23 | 31 | 262 | 76 | 23 | 110 | 44 | 37 | 35 | M42X2 | 9 | |||
| QFZ-H※40L | 40 | 100 | 65 | 46 | 68 | 200 | 30 | 40 | 318 | 90 | 35 | 140 | 45 | 48 | 52 | M60X2 | 19 | |||
| QFZ-H※50L | 50 | 120 | 70 | 46 | 68 | 240 | 30 | 40 | 377 | 115 | 56 | 160 | 50 | 60 | 63 | M72X2 | 27 | |||
| Model | DN (mm) |
PN (Mpa) |
Dimension (mm) | Weight (kg) |
||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L1 | L2 | L3 | L4 | H | H1 | H2 | H3 | H4 | H5 | W | W1 | W2 | D | D1 | D2 | AxA(S) | ||||
| QFZ-H※15F | 15 | 10 20 31.5 |
85 | 58 | 46 | 68 | 115 | 11 | 20 | 193 | 53 | 20 | 90 | 33 | 28 | 22.5 | M10X1 | M18X1.5 | 56 | 5 |
| QFZ-H※25F | 25 | 90 | 58 | 46 | 68 | 155 | 14 | 25 | 256 | 76 | 23 | 110 | 44 | 37 | 35 | 74 | 9 | |||
| QFZ-H※40F | 40 | 100 | 65 | 46 | 68 | 180 | 18 | 30 | 30 | 90 | 35 | 140 | 45 | 48 | 52 | 96 | 19 | |||
| QFZ-H※50F | 50 | 120 | 70 | 46 | 68 | 230 | 20 | 35 | 372 | 115 | 56 | 160 | 50 | 60 | 65 | 110 | 27 | |||
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After-sales Service
We provide professional, accurate, patient, and efficient solutions to your hydraulic accumulator manufacturing problems.
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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.
