Ⅰ. Basic Parameters of Offline Safety Valve Calibration Bench
This equipment mainly boosts the internal pressure until the safety valve pops open. The popping pressure is displayed by the built-in pressure gauge, to calibrate the popping pressure (also referred to as opening pressure or set pressure) and sealing test pressure of safety valves.
It is specially applicable to the performance tests on direct-loaded and pilot-operated safety valves, covering set pressure, reseating pressure, tightness and other indicators.
Applicable Scope
Pressure range of safety valves: PS ≤ 30 MPa
Flange outer diameter: D80～600 mm
Suitable for various threaded safety valves
Compatible with full-lift and low-lift safety valves
Adapt to safety valves with thick and thin flanges
Applicable to metric and imperial standard safety valves
Structure
The hydraulic clamping mechanism adopts a bottom jacking valve seat and three-jaw limiting design, which effectively guarantees the sealing performance of safety valves.
The hydraulic power unit ensures stable hydraulic clamping performance.
The sliding protective door design guarantees operator safety during operation.
The high-pressure air source general control system is equipped with an air-cooled, four-stage and four-cylinder compressor, as well as full stainless steel intermediate and final-stage coolers.
The air supply unit is equipped with two sets of filtration systems: a three-stage air purification system composed of activated carbon, molecular sieve and carbon monoxide adsorbent, and an oil-water separation system.
It adopts a foundation-free design with a heavy-duty all-steel base frame, featuring durable plastic spraying and shock absorption.
Test valves and stainless steel pipelines ensure excellent testing tightness and prevent pipeline corrosion.
International brand electrical components are applied to ensure operational reliability.
A pull-out stainless steel cleaning air gun greatly improves operating convenience.
II. Technical Parameters of Offline Safety Valve Calibration Bench
Item |
Metric |
Imperial |
Valve flange outer diameter |
D600mm |
24 Inches
|
Valve calibration pressure |
30Mpa |
4350psi |
Air storage capacity |
13.6L 30Mpa |
13.6L 4350psi |
Hydraulic clamping force |
45t |
450KN |
Valve flange thickness |
﹤=180mm |
≤7 Inches |
Computer data acquisition system |
+/-0.3% |
+/-0.3% |
Calibration accuracy |
+/-0.4% |
+/-0.4% |
Air supply system |
2.2 kW, 220V Single-phase |
2.2 kW, 220V Single-phase |
Clamping system |
2.2 kW, 220V Single-phase |
2.2 kW, 220V Single-phase |
Dual-gauge spare connector |
M20×1.5 Internal Thread |
M20×1.5 Internal Thread |
Safety door |
Sliding Mode |
Sliding Mode |
Control console dimensions |
986x1039x1525mm |
39×41×60 inches |
Clamping table dimensions |
972.5x1090x925mm |
39×43×37 inches |
Air compressor unit dimensions |
450x900x593mm |
18x36x24 inches
|
Noise level |
73dB |
73dB |
Total Weight |
900kg |
1980lb |
Flanged safety valves with nominal diameter DN15～DN400;
Large-bore safety valves with nominal pressure PN ≤ 32 MPa;
Various full-lift and low-lift safety valves;
A27W-10T type safety valves with imperial thread of ½" ~ 2½";
Flanged safety valves with flanges in different thicknesses and shapes;
Safety valves with metric and imperial threads;
Domestic and imported safety valves;
Safety valves applicable to gas and liquid media.
III. Spare Parts List of Offline Safety Valve Calibration Bench
name |
Description |
Quantity |
Control Console |
|
1 |
Hydraulic Clamping Table |
|
1 |
High-pressure Air Source Unit |
|
1 |
Pressure Gauge |
0-1.6Mpa、0-4Mpa、0-16Mpa、0-40Mpa（Factory Installed） |
4 |
Dual-gauge Spare Connector |
M20×1.5 Internal Thread (Installed) |
4 |
Expansion Interface |
M20×1.5 Internal Thread (Installed) |
1 |
Electrical Expansion Interface |
USB 2.0 × 2, 220V Single-Phase × 2 (Factory Installed) |
1 |
Flange Adaptor Plate |
DN15、25、32、40、50、65、80、100、150、200、250、300 |
12 |
Threaded Connection Sealing Base |
|
1 |
Imperial Thread Connector |
1/2″、3/4″、1″、11/4″、11/2″、2″、21/2″ |
7 |
Metric Thread Connector |
M27×1.5、M30×1.5、M33×1.5 |
3 |
Safety Protection Door |
|
1 |
Floor Caster |
Plug-in Mode |
4 |
femenshiyanji-f
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