Fuzhou Aladdin Ronghai Technology

Accumulator Safety Valves

QFZ-Type Accumulator Safety Blocks Group

The QFZ-type accumulator safety shut-off valve group is designed to safely isolate hydraulic accumulators from the system, maintain pressure control, and ensure safety during maintenance operations. Installed between the accumulator and the hydraulic circuit, it allows the opening and closing of flow, while also offering a multifunctional structure for pressure relief, charging, and gauge connections.

 

With its compact design, leak-proof valve mechanism, and integrated safety structure, it protects the accumulator against overpressure and enables maintenance to be performed without shutting down the entire system. It is reliably used in industrial press lines, hydraulic power units, and mobile machinery.

Product Details

1.Product Description

2. Internal Structure and External Dimensions

Technical Specifications – Threaded Type

Model DN
(mm)
PN
(MPa)
Main Dimensions / Basic Size (mm) Weight
(kg)
L1 L2 L3 L4 H H1 H2 H3 H4 H5 W W1 W2 D D1 D2 DM(S)
○FZ-h^15L 15 10 85 58 46 68 131 20 28 201 53 20 90 33 28 20 M27×2×25 5
QFZ-H^25L 25 20 90 58 46 68 167 23 31 262 76 23 110 44 37 35 M10×1 / M18×1.5 / M42×29 9
QFZ-H^40L 40 31.5 100 65 46 68 200 30 40 318 90 35 140 45 48 52 M60×2×19 19
○FZ-h^50L 50 31.5 120 70 46 68 240 30 40 377 115 56 160 50 60 63 M72×2×27 27

Technical Specifications – Flange Type

Model Nominal Diameter (DN) Rated Pressure (PN) Main Dimensions (mm) Weight (kg)
L1L2L3L4 HH1H2H3H4H5 WW1W2DD1D2A×A (S)
○FZ-_15F 15 10 85584668 11511201935320 90332822.556 5
QFZ-H^25F 25 20 90584668 15514252567623 110443735M10×1M18×1.574 9
QFZ-H^40F 40 31.5 100654668 18018303009035 14045485296 19
○FZ-h^50F 50 31.5 120704668 230203537211556 160506065110 27