Check Valve Test Bench Technical Specification(Check Valve Test Equipment)
Compliant with API, ISO, ASME & EN Standards
I. Core Functions
Sealing Performance Testing
Reverse Sealing (Critical) : Apply reverse pressure (≥1.1x design pressure) to measure backflow leakage.
Forward Flow Verification : Validate flow resistance at full-open position (per API 6D/ISO 5208).
Shell Strength Test
1.5x design pressure hold test (API 598 §5.3), duration ≥120s (for DN≥100mm valves).
Operating Characteristics
Cracking Pressure : Measure minimum ΔP to initiate opening (e.g., ≤0.03MPa for lift checks).
Closing Response Time : Record disc closure speed during flow reversal (via HSC/custom sensors).
II. System Configuration
MODULE
KEY COMPONENTS
FUNCTION
Hydraulic Unit
HP pump/pneumatic intensifier
0-100MPa adjustable pressure (ANSI 150-2500#)
Fixturing
Universal V-clamp + flange adapters
DN15-1200mm (RF/RTJ/WE connections)
Control System
PLC + 10″ HMI touchscreen
Preloaded API/ISO test sequences, automated reporting
Detection
Laser flowmeter + ±0.1% pressure transmitters
Leakage resolution: 0.01mL/min (gas)
Safety
Explosion-proof viewport + E-stop
Compliant with ASME B16.34 §7
III. Standards Compliance
STANDARD
TEST ITEM
CAPABILITY
API 598
Shell test / Backseat test
Auto pressure holding + leak rate calc.
API 6D §6.12
Low-pressure seat test (gas)
N₂ test @ 7-10 psi (0.5-0.7 bar)
ISO 5208 A
Zero leakage (metal seats)
Bubble counting method (0 bubbles for ≤DN50)
EN 12266-1
Cyclic endurance (10k cycles)
Programmable cycling (1-5 Hz)
IV. Valve Type Adaptability
VALVE DESIGN
TEST FOCUS
DEDICATED TOOLING
Swing Check
Hinge wear + shaft seal
Angle encoder + torque analyzer
Lift Check
Guide bushing clearance leakage
High-accuracy LVDT
Dual Plate Wafer
Synchronized disc closure
High-speed camera (≥1000 fps)
Tilting Disc
Dynamic stability analysis
Vibration monitoring module
V. Standard Test Sequence
Yes
N
Specimen Mounting
Shell Strength Test
Pass?
Reverse Sealing Test
Reject
Forward Flow Test
Cracking/Resealing Pressure
Cyclic Endurance Test
Report Generation
API/ISO Certification
VI. Technical Parameters
PARAMETER
RANGE/SPECIFICATION
Test Pressure
0.1-100 MPa (hyd) / 0-10 MPa (pneu)
Test Media
Water/Oil/N₂ (99.999% purity)
Data Acquisition Rate
1 kHz (real-time graphing)
Leak Detection
Liquid: 0.1 mL/min<br>Gas: 5 bub/min
Temp. Range
-50°C to 200°C (w/ thermal kit)
VII. Applications
Manufacturing : Factory Acceptance Test (FAT)
O&G/Power Plants : Maintenance validation
Certification Labs : Third-party type testing (e.g., TA-Luft)
AI-Powered Upgrade : Optional defect recognition system identifies micro-cracks/pitting per ASME Section V NDE criteria.
Document Notes :
All units comply with SI standards (metric primary, imperial secondary)
Test sequences adhere to API 6D §6.12 and ISO 5208 Stage 3 requirements
Safety systems certified per CE/PED 2014/68/EU & OSHA 29 CFR 1910
Customizable for cryogenic/high-temp valves (ASME B16.34 Group 1.1 materials)
For full validation protocols or CFR 21 Part 11 compliant software, request Appendix E.
Check Valve Testing equipment Technical Specification
