The HJST-011 is a fully automatic pneumatic safety relief valve tester designed for precise performance verification of high-pressure valves (DN15-DN400). It integrates a dual pressurization system (gas/liquid), a hydraulic clamping device (adjustable to 30 tons), and a computer control unit. It supports pressure testing from 0 to 480 bar with an accuracy of up to ±1% F.S.
Item No. :
HJST-011Minimum Order Quantity (MOQ) :
1 setPayment Method :
L/C, T/TPrice :
NegotiatableProduct Origin :
CHINASupply Ability :
10 Set per monthLead Time :
90 DaysConventional packaging :
PlywoodISO 4126 Certified Pneumatic Safety Relief Valve Test Equipment 400bar High Pressure Testing
Product Highlights
Complies with ISO 4126-1, ASME Section VIII, and other core safety valve standards. Supports both gas (air/nitrogen) and liquid (water) modes, covering all testing scenarios. The LabVIEW system automatically sets pressure curves and generates real-time test reports. A wide testing range of 0-480 bar meets ultra-high-pressure valve certification requirements. The hydraulic pump offers a 30-ton dynamic clamping force, compatible with valves from DN15 to DN400.
International Reference Standards
Standard |
Clause Requirement |
Validation Scope |
ISO 4126-1 |
Design, Manufacturing & Performance of Safety Valves |
Set Pressure Tolerance ≤ ±3% |
IEC 61508 |
Functional Safety Integrity Level (SIL) |
Redundant Control Logic Verification |
ASME Sec.VIII |
Pressure Vessel Safety Code |
Seal Integrity Holding Test |
Technical Parameters
Category |
Specifications |
Test Pressure Range |
Gas: 0-480 Bar · Liquid: 0-480 Bar |
Drive Air Supply |
3-8 Bar (Standard: 6.6Bar→400Bar Gas Output / 6.3Bar→400Bar Liquid Output) |
Pressure Boost Ratio |
Gas Pump: 60:1 · Liquid Pump: 64:1 |
Accuracy Control |
Pressure Control: ≤1% F.S · Measurement: Class 0.4 Gauge |
Valve Compatibility |
DN15-DN400 · BSP Thread (DN15-DN50) · Flange (DN15-DN400) |
Clamping System |
Hydraulic Pump LKD-40 · 30T Clamping Force (Adjustable) |
Data Management |
LabVIEW System (National Instruments) · Auto Plotting & Report Printing |
Power/Dimensions |
220V 50-60Hz · Console: 1500×1000×1600mm (420kg) · Clamping Table: 1370×820×830mm (700kg) |
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