Earthquake-Resistant DI Pipe, Q.R. Flex
Insurance for the Future of Water
Q.R. Flex
Q.R. Flex is Hanyco’s latest product—a flexible, restrained pressure joint that requires an assembly force similar to a Tyton joint, making installation very easy. One of its unique features is its ability to accommodate both angular deflection and axial movement.
Q.R. Flex uses a standard Tyton gasket for sealing, which makes installation significantly easier and faster. A ductile iron locking ring, inserted through a slot in the bell surface, creates a positive axial lock between the bell’s inner surface and a retaining weld at the pipe spigot end.
The robust Q.R. Flex joint forms a chain-like structure along the pipeline, enabling the distribution of forces generated at various points along the line.
Standards
- Q.R. Flex is designed in accordance with ISO 16134, and its performance testing follows ISO 10804.
- External coatings comply with ISO 8179, and the internal lining follows ISO 4179 and EN 598.
- Q.R. Flex is manufactured according to ISO 2531 and EN 545.
- The sealing gasket is similar to a Tyton joint gasket and complies with ISO 4633 and EN 681.
Applications
- Suitable for all types of soil and ground, especially in unstable or marshy areas.
- Ideal for locations where installing restrained concrete blocks is not possible.
- Perfect for trenchless drilling systems, particularly directional horizontal drilling.
- Applicable in sloped and hilly regions.
- Suitable for fault lines and earthquake-prone zones.
Advantages
- Enhanced pipeline resistance to thrust forces and joint displacement by forming a chain-like structure along the pipeline.
- Lower implementation costs due to the elimination of thrust blocks and cement stabilization.
- Quick and easy assembly without the need for glands, bolts, or nuts.
- Increased safety of water networks against earthquakes and ground movement.
- Significant reduction in water loss within transmission and distribution networks..
Dimensions and Weights Specifications of Q.R. Flex Pipes According to ISO 2531 Standard
Q.R. Flex ON 150-600 mm in K Class-ISO 2531: 1998
| DN | External Diameter (DE) |
Pipe Length (L) |
Socket Length (P) |
External Diameter of Socket (D) |
Nominal Thickness (e) |
Pipe Weight with Internal Cement Lining and External Coatings |
|---|---|---|---|---|---|---|
| (mm) | (m) | (mm) | (mm) | (mm) | (kg) | |
| 150 | Nominal 170 | 6 | 155 | 227 | 6.0 | 160 |
| 200 | Nominal 222 | 6 | 163 | 295 | 6.3 | 224 |
| 250 | Nominal 274 | 6 | 165 | 350 | 6.8 | 293 |
QR Flex on 150-600 mm in C Class-ISO 2531: 2009
| DN | External Diameter (DE) |
Pipe Length (L) |
Preferred Pressure Class | Socket Length (P) |
External Diameter of Socket (D) |
Nominal Thickness (e) |
Pipe Weight with Internal Cement Lining and External Coatings |
|---|---|---|---|---|---|---|---|
| (mm) | (m) | (bar) | (mm) | (mm) | (mm) | (kg) | |
| 150 | Nominal 170 | 6 | C40 | 155 | 227 | 4.5 | 134 |
| 200 | Nominal 222 | 6 | C40 | 163 | 295 | 4.7 | 190 |
| 250 | Nominal 274 | 6 | C40 | 165 | 350 | 5.5 | 264 |
The weight of locking ring is not calculated in final Q.R. Flex pipe s weight. All dimensions except pipe length are in mm and weight are in kg. Dimensions and weights are mentioned without tolerance consideration. All weights are calculated based on the K9 thickness class. In case of other thickness classes, please contact Hanyco technical experts. Cement thickness in various sizes is similar to Push-on joint (Tyton) pipe.
Dimensions and Weights Specifications of Q.R. Flex Pipes According to EN 545 Standard
Q.R. Flex on 150-600 mm in K Class-EN 545: 2007
| DN | External Diameter (DE) |
Pipe Length (L) |
Socket Length (P) |
External Diameter of Socket (D) |
Nominal Thickness (e) |
Pipe Weight with Internal Cement Lining and External Coatings |
|---|---|---|---|---|---|---|
| (mm) | (m) | (mm) | (mm) | (mm) | (kg) | |
| 150 | Nominal 170 | 6 | 155 | 227 | 6.0 | 166 |
| 200 | Nominal 222 | 6 | 163 | 295 | 6.3 | 232 |
| 250 | Nominal 274 | 6 | 165 | 350 | 6.8 | 303 |
| 300 | Nominal 326 | 6 | 185 | 416 | 7.2 | 391 |
| 350 | Nominal 378 | 6 | 193 | 475 | 7.7 | 497 |
| 400 | Nominal 429 | 6 | 198 | 525 | 8.1 | 591 |
| 500 | Nominal 532 | 6 | 210 | 640 | 9 | 831 |
| 600 | Nominal 635 | 6 | 224 | 751 | 9.0 | 1083 |
Q.R. Flex on 150-600 mm in C Class-EN 545: 2010
| DN | External Diameter (DE) |
Pipe Length (L) |
Preffered Pressure Class | Socket Length (P) |
External Diameter of Socket (D) |
Nominal Thickness (e) |
Pipe Weight with Internal Cement Lining and External Coatings |
|---|---|---|---|---|---|---|---|
| (mm) | (m) | (bar) | (mm) | (mm) | (mm) | (kg) | |
| 150 | Nominal 170 | 6 | C40 | 155 | 227 | 4.5 | 140 |
| 200 | Nominal 222 | 6 | C40 | 163 | 295 | 4.7 | 199 |
| 250 | Nominal 274 | 6 | C40 | 165 | 350 | 5.5 | 352 |
| 300 | Nominal 326 | 6 | C40 | 185 | 416 | 6.2 | 340 |
| 350 | Nominal 378 | 6 | C30 | 193 | 475 | 6.3 | 437 |
| 400 | Nominal 429 | 6 | C30 | 198 | 525 | 6.5 | 514 |
| 500 | Nominal 532 | 6 | C30 | 210 | 640 | 7.5 | 740 |
| 600 | Nominal 635 | 6 | C30 | 224 | 751 | 8.7 | 1001 |
The weight of the locking ring is not included in the final Q.R. Flex pipe weight. All dimensions, except for pipe length, are given in millimeters, and weights are in kilograms. Dimensions and weights are provided without considering tolerances. All weights are calculated based on the preferred pressure class.Cement thickness for various sizes is the same as that of Push-on joint (Tyton) pipes. For non-preferred pressure classes, please contact Hanyco technical experts.
Other Important Specifications are as Follows Tables:
| Parameter | Slip-out Resistance | Expansion/ Contraction Performance | Joint Deflection Angle |
|---|---|---|---|
| Q.R. Flex Joint Place | A | S_2 | M_2 |
| Performance | 3d KN or more | ±0.5% to less than ±1% of L | 4 to less than 8 degrees |
| DN (mm) | 80-400 | 450-600 |
|---|---|---|
| Joint Deflection Angle θ (degree) | 8 | 7 |
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