Pipeline Testing Equipment for Long-Term Pressure and Temperature Cycle Testing
This specialized testing system is engineered for durability assessment of plastic pipeline systems and fittings, assembled according to standard specifications. The system applies preset internal pressure while exposing specimens to cyclic cold and hot temperature conditions over programmed testing periods. Upon completion of test cycles, the system automatically inspects pipes and fittings for leakage or rupture defects.
Testing Protocol Overview
This long-term durability verification requires 5,000 hot and cold water circulation cycles per specimen set, with each cycle lasting 30 minutes (15 minutes cold water followed by 15 minutes hot water). The equipment ensures dependable long-term uninterrupted operation and consistent performance stability. Custom-produced for European markets according to technical standards, this machine has demonstrated zero technical or quality defects during years of operation.
System Configuration
The apparatus comprises four core functional modules: cold water exchange execution module, hot water exchange execution module, specimen test chamber, and industrial water chiller. Features include sleek exterior design, modular structural framework, advanced control technology, steady operation performance, dependable quality, and straightforward user-friendly operation.
Instrument Features
- Patent-Protected Open Structure Design: High-temperature, high-pressure water circulates exclusively within test specimens and special connecting pipework. The equipment utilizes atmospheric-pressure vessel design with other circulation pipelines running under standard atmospheric pressure, ensuring long-term dependable operation.
- Full Closed-Loop Control System: Employs imported all-digital control system providing closed-loop precise adjustment of internal pressure. Automatically regulates main circulation pump and control valves based on real-time indicators including fluid temperature, operating duration, and pipeline flow velocity.
- Smart Cycle Switching System: Control system automatically tunes operation status based on real-time monitoring of inlet/outlet water temperatures, tank liquid levels, and switching intervals. Ensures temperature variation between tanks remains below 3°C for ultra-low energy consumption.
- Low-Noise Operation Design: Equipped with exclusive water flow controller that significantly reduces operation noise from high-speed water flow.
- High-Performance Refrigeration System: Uses imported industrial chillers with water-to-water cooling technology to enhance refrigeration efficiency and extend service life.
Compliance Standards
- GB/T 18742.2-2017 Polypropylene piping systems for hot and cold water installations
- GB/T 13663.2-2018 Polyethylene (PE) piping systems for water supply
- GB/T 15560-1995 Test method for hydraulic instantaneous burst and pressure resistance
- GB/T 6111-2018 Thermoplastics pipes for fluid conveyance
- ISO 1167-1:2006 Thermoplastics pipes resistance to internal pressure
- ISO 1167-2:2006 Preparation of pipe test pieces
- ASTM D1598 Time-to-Failure of Plastic Pipe Under Constant Internal Pressure
- ASTM D1599 Resistance to Short-Time Hydraulic Pressure
Technical Parameters
| Parameter |
Specification |
| Pressure Control Range |
0.40 MPa ~ 1.20 MPa |
| Control Accuracy |
Set value ±0.02 MPa |
| Test Stations |
1-6 |
| Maximum Total Measured Cross-Sectional Area |
6200 mm² (2 × φ63); customizable |
| Circulation Time (Hot/Cold Water) |
600s to 1800s |
| Alternating Hot/Cold Water Time |
≤60s |
| Number of Cycles |
0 to 100,000 |
| Maximum Straight Pipe Section Length |
3700mm |
| Display Mode |
Touch screen display |
| Control Method |
PLC control |
| Velocity of Flow |
>0.9m/s |
| Water Quality |
Pure water, deionized water, or softened water |
| Automatic Water Supply Pressure |
>0.05 MPa |
| Temperature Display Reading Error |
±0.2℃ |
| Temperature Difference (Inlet/Outlet) |
<2℃ |
| Cold Water Tank Temperature Range |
20°C to room temperature |
| Hot Water Tank Temperature Range |
Room temperature to 95°C |
| Power Source |
380V AC, 50Hz, 25kW |
| Outline Dimensions |
5200 mm × 3200 mm × 2100 mm |
| Installation Dimensions |
6000 mm × 4000 mm × 3000 mm |
| Total Weight |
3210 kg |
Main Component Configurations
| Component |
Quantity |
| Industrial touchscreen computer |
1 unit |
| Cold water storage cistern |
1 unit |
| Hot water tank |
1 unit |
| Test chamber |
1 set |
| Preloading Device |
6 sets |
| Centrifugal pump of multistage type |
1 set |
| Pneumatic solenoid valve |
4 |
| In-line pump |
1 set |
| Fixtures (various sizes) |
Multiple sets |
Product Images