Testing Machines For PE Pipe Pipe Hydrostatic Pressure and burst Testing Machine

Introduction

The machine is designed and manufactured according to GB/T6111 Thermoplastics pipes for the conveyance of fluids ----Resistance to internal pressure----Test method and GB/T15560Standard test method for short-time hydraulic failure and resistance to constant internal pressure of the plastics pipes for the transport of fluids . It is suitable to determine the pressure-resisting broken time or the maximum pressure value of instantaneous blast of thermoplastic pipes and compound pipes (such as PP-R ,PP-B ,PP-A ,PE ,PE-X ,PVC ,PVC-U and PVC-C ) under long-term constant internal pressure and temperature .It is indispensable for manufacturers of plastic pipes and testing institutions .

The machine meets the following standards :

GB/T6111-2018  Test method for internal pressure resistance of thermoplastic pipes for liquid transportation

GB/T15560-95  Hydraulic instantaneous burst and pressure resistance test methods for plastic pipes for fluid transportation

GB/T18742.1  Polypropylene piping systems for hot and cold water                    

installation — Part 1 :General

GB/T18742.2  Polypropylene piping systems for hot and cold water                    

installation — Part 2 :Pipes

GB/T18742.3   Polypropylene piping systems for hot and cold water                    

installation — Part 3 :Fittings

GB/T13663    Polypropylene pipes for water supply

GB/T15558.1  Buried polyethylene (PE) pipes for the supply for      

gaseous fuels

GB/T15558.2  Buried polyethylene (PE) fittings for the supply for

gaseous fuels

GB/T18992.1  Crosslinked polyethylene (PE-X) piping systems for hot    

and cold water installation — Part 1 :General

GB/T18992.2  Crosslinked polyethylene (PE-X) piping systems for hot             

and cold water installation —Part 2 :pipes

GB/T10002.1  Unoplasticized polyvinyl chloride (PVC-U) pipe for water supply

GB/T10002.2  Unoplasticized polyvinyl chloride (PVC-U) fitting for water supply

GB/T18993.1  Chlorinated poly (vinyl chloride) piping system for hot              

and cold water installations —Part 1:General

GB/T18993.2  Chlorinated poly (vinyl chloride) piping system for hot

and cold water installations —Part 2:pipes

GB/T18997.1  Polyethylene/Aluminum /polyethylene composite pressure     

pipe— Part 1 :PE/AL/PE pipe overlap-welded by aluminum pipe

GB/T18997.2  Polyethylene/Aluminum /polyethylene composite pressure     

pipe— Part 2 : PE/AL/PE pipe butt-welded by aluminum pipe

ISO 1167-2006 Plastic piping systems - Thermoplastics pipes - Determination of resistance to internal pressure at constant temperature.

ISO13479  Determination of resistance of polyolefin pipes for the conveyance of fluids to crack propagation.

ISO9080  Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation (ISO9080, Ed. 1.0 (2003) MOD)

ASTM D1598-2015  Pipe, Plastic, Under Constant Internal Pressure, Time-to-Failure of (No S/S Document)

ASTM D1599  Standard Test Method forResistance to Short-Time Hydraulic Pressure of PlasticPipe, Tubing, and Fittings1

DIN EN 921 (1995-01)  Thermoplastics pipes - Determination of resistance to internal pressure at constant temperature

Feature

1)This instrument is used for testing a certain range of internal pressure in a long period of time of plastic pipes.

2)The instrument consists of a pressure host, a pressure station, a water tank, a temperature control system and a computer software system.

Main Frame: It consists of pressure micro control parts, automatic filling pressure and electric discharge pressure parts, pressure micro control part adopts the microcomputer MCU control; equipped with high resolution, high speed of ∑ - delta 16-bit adc chip, real-time communication and computer; and it can automatically fill and relief pressure according to the situation of pressure.

Pressure Station: Its main function is to provide pressure to the main frame, the requirement of lower limit pressure of pressure station requirement must be higher than all tested specimen. The plunger pump of the station is made in the United States (large flow, low noise, high pressure, free maintenance).

Water Tank: It consists of electric opening part, self-circulation part, heating part, automatic water filling part and insulation part.

Temperature Control System: Accurately control the temperature of the water tank, temperature display, set temperature individually. It can control the liquid level of tank at a reasonable position, at the same time it can also guarantee the temperature.

Software System: By connecting with RS232 serial interface to the pressure on the host, it can provide the parameters setting, calibration, pressure relief, zero, amplitude modulation, drawing the test, test records and print test reports and other functions.

Application

The instrument is widely used in the internal pressure test of all kinds of plastic pipes. It is the ideal testing instrument for construction industry, Plastic pipe producers, national testing sectors and the scientific research sectors. 

Working Conditions

Following conditions must be satisfied to conduct a test:

1. Ambient Temperature: 10℃～40℃;
2. Ambient Temperature: 30%—80%;
3. Vibration-free，no corrosive medium environment;
4. Install and adjust the instrument to level on a solid foundation;
5. No strong electromagnetic interference and no strong wind resistance;
6. A indoor exhaust system is needed to prevent the instrument

 Main specifications

1. test pressure and time separately control within 3 lines

2. pressure adding range :0~10.000MPa

3. Max. working pressure of main pressure system 16MPa

4. high pressure piston pump

(1) pressure : 16MPa

(2) volume :8-11.3L/min

(3) rotating speed :920rpm/min       

5 .pressure controlling precision :+2% and -1% of upper and lower limit of test pressure value respectively

6. resolution of pressure value :0.001Mpa

7. transformer :test pressure sampling periods is 0.1 millisecond .

8. timing range :0—9999h

9. timing precision :1S

Structure and theory

The high pressure liquid generated by high pressure pump is transported to samples in media temperature constant tanks through high pressure hoses to carry out pipe long time hydrostatic pressure tests after being measured by main engine of pressure control system