Rapid Crack Propagation Tester (RCP)

ISO 13477

Rapid Crack Propagation (RCP) Tester QT-RCP Series is designed to determine the critical pressure or critical temperature for rapid crack propagation of plastic pipe, PVC or other relevant materials. QT-RCP Series is a full set of testing machine consist of RCP Test Unit, RCP Low Temperature Conditioning Cabinet, RCP Sample Delivery Unit and RCP End Caps.

ISO 13477 Thermoplastics pipes for the conveyance of fluids -- Determination of resistance to rapid crack propagation (RCP) -- Small-scale steady-state test (S4 test), is applicable to the assessment of the performance of thermoplastics pipes intended for the supply of gases or liquids. In the latter case, air can also be present in the pipe.

QT-RCP-TU - RCP Test Unit

Rational structure and accurate impact speed. There is an energy storage device in the unit, it convert elastic potential energy into kinetic energy,than the impact speed range can be controlled between 1m/s and 20m/s.

Unit comes with the industrial control terminal and colorful touch screen which provides more information to operator, such as sample pre-treatment time, pipe inside current pressure, impact speed, length of crack and test temperature, etc.

Fast pressure filling and accurate pressure control. For pipes DN200 to DN500, setting pressure can be arrived within 30s and thanks to the module design, unit can be upgraded to suit different sizes pipes.

High rigid frame enhance the bearing strength of system and multiple buffers in the frame reduce impact force from the high velocity striker, so that the component connection keep perfect after repeated trials.

High-efficiency and reliable energy storage system. Energy storage system with a high storage speed and striker lifting system can be locked firmly or released quickly.

The easily adjustable support and the simple assembly & positioning system with quick coupling saves time and has proved to work outstandingly well in operation with samples.

Automatic security confirmation system. It means the correct locations of the test sample and the striker blade are identified automatically, so that the collision of the sample assembly with the striker blade is prohibited and the blade will not be released when the sample is not in position.

QT-RCP-CC - RCP Low Temperature Conditioning Cabinet

Automatically-activated doors are provided. For time-saving reasons, the assembly goes into and out of the conditioning cabinet through the pneumatic opening door.

Ultralow temperature and high efficiency. Temperature can drop to -30 within 10min and multiple groups of samples can be treated simultaneously. Temperature can be monitored and regulated automatically.

There are independent sample delivery rails for cooling stations. Unique sealing design for the cabinet avoid freezing phenomenon between sealing strip and cabinet.

Excellent thermal insulation system helps to enhance the security and save power consumption.

Multiple safety protection systems, including escape and alarm device for operator.

QT-RCP-SD - RCP Sample Delivery Unit

According to the standard laying down “crack initiation shall follow within 3 minutes of removal of the test pipe from the conditioning”. Limited time is available to position test sample and to increase the internal pressure. For this reason we offer a complete electric sample delivery unit.

High accuracy and high delivery speed. Thanks to the positioning system and automatic driven system, sample can be picked up from the conditioning cabinet within 30s.PLC control terminal and colorful touch screen. Integrated monitoring during testing and provides customer more information, such as cooling temperature, pre-treatment time, sample inlet& outlet, etc.

QT-RCP-EC - RCP End Caps

RCP End Caps consists of front & rear sealing part, limiting ring, baffles, O-rings, etc. A variety of specifications are selected, including Φ63mm, Φ110mm, Φ160mm, Φ250mm, Φ315mm, Φ400mm and Φ500mm.

Seal parts, limitation ring and internal baffles are connected to each other, together with sample shall be fixed on the v-support on sample supporting seat. So that blade can impact the slotted area on test pipe.

Unique design makes the weight much lighter and with higher rigid which can bear 3 MPa pressure. Patented structure ensures easy mounting and perfect sealing. It is also fast and easy to change to another pipe size or SDR.

Technical Specifications


QT-RCP Series

Test Pipe Sizes

≤ Φ315mm or ≤ Φ250mm (or other sizes on request)

Speed Range

1m/s ~ 20m/s

Speed Accuracy



Pressure Medium

Nitrogen(equipped  by user)


≤ 2.5MPa

Accuracy class


Control Mode

PLC control and touch screen  display

Striker  Blade Release


Pneumatic  Energy Storage


Speed measurement

Independent measurement, serial  communication interface

Storage mode

USB Stick

Power supply

Power supply

Compressed  Air Interface

3/8’’ quick coupling, high pressure hose

Compressed Air Supply

3~4MPa (equipped by user)

Security Protection


Basic unit



Dimension (L×W×H)

830 × 710 × 2420mm

External Rail



Dimension (L×W×H)

3000 × 370 × 75mm

Main controller



Dimension (L×W×H)

450 × 500 × 1300mm

RCP Low Temperature  Conditioning Cabinet

Test Stations

2 or 4  (can be  customized)


2 stations


4 stations

20 m³

Test Pipe Sizes

≤ 315mm

Temperature Control Range


Temperature  Display Accuracy


Temperature  Control Accuracy

± 3℃

Cooling Power

2 stations

5P, hourly cooling capacity:10.7KW

4 stations

8P, hourly cooling capacity:17KW

Overall Dimensions


2 stations

2220 × 3000 × 2300mm

4 stations

4140 × 3000 × 2300mm

Power Supply

380V AC, 50HZ, 5KW



RCP Sample Delivery  System

Control Mode

PLC control and touch screen  display

Number of Test Station

2 or 4 (can be customized)

Sample Delivery

Pneumatic and motor-driven

Sample  Delivery Distance (Automatic)


Sample  Delivery Speed


Longest Time for Sample  Delivery


Compressed Air Supply

˂ 0.8Mpa (equipped  by user)

Dimensions (L×W×H)

3000 × 370 × 750mm




For more information about Rapid Crack Propagation Tester (RCP), please call us at 1.877.884.8378 or Click the button below.