PN16/PN25 Fig No.: F83DJ16/F83DJ25
GENERAL
Absorbs and reduces vibration and shock in the system.
Absorbs the stress generated by the expansion and compression of the pipe line.
Provides flexibility to the system as allowance connection and installation error.
Excellent resistance against pressure.
Control rods available upon request.
FEATURES
Molded and vulcanized in hydraulic presses.
Solid carbon steel internal reinforcing ring.
With BS 4504 PN16 / BS 4504 PN25 / EN 1092-2 PN16 / EN 1092-2 PN25 / ANSI Class 150 floating flanges (Specify on order).
APPLICATIONS
Building Services, Air-Conditioning, Fire-Protection, Cold Water Plumbing, Sewerage & Water Treatment, Marine Services, General Industries.
Suitable for suction and discharge within specify working pressure.
| Part | Material |
| Flanges | Ductile Iron (DN40 … DN300) Carbon Steel Stainless Steel 304 Stainless Steel 316 |
| Reinforcing Ring | Carbon Steel |
| Inner Rubber | EPDM |
| Outer Rubber | EPDM |
| Reinforcing Cord | Synthetic Fiber |
| Control Rod | Mild Steel |
Note : PN25 only available for carbon steel flanges.
Operating Pressure & temperature
| Diameter | Dimension | Pre-Gap | Allowable Movements(mm) | ||||
| mm | inch | L (mm) |
L (mm) |
Axial Elongation (mm) |
Axial Compression (mm) |
Lateral Displacement (mm) |
Angle of Deflection (°) |
| 32 | 1¼ | 175 | 170-180 | 20 | 30 | 45 | 30 |
| 40 | 1½ | 175 | 170-180 | 20 | 30 | 45 | 30 |
| 50 | 2 | 175 | 170-180 | 20 | 30 | 45 | 30 |
| 65 | 2½ | 175 | 170-180 | 25 | 50 | 45 | 30 |
| 80 | 3 | 175 | 170-180 | 25 | 50 | 45 | 30 |
| 100 | 4 | 225 | 220-230 | 35 | 50 | 35 | 30 |
| 125 | 5 | 225 | 220-230 | 35 | 50 | 35 | 30 |
| 150 | 6 | 225 | 220-230 | 35 | 50 | 35 | 30 |
| 200 | 8 | 325 | 320-330 | 35 | 50 | 30 | 30 |
| 250 | 10 | 325 | 320-330 | 35 | 50 | 30 | 15 |
| 300 | 12 | 325 | 320-330 | 35 | 50 | 30 | 15 |
| 350 | 14 | 345 | 340-350 | 25 | 40 | 28 | 10 |
| 400 | 16 | 345 | 340-350 | 25 | 40 | 28 | 10 |
| 450 | 18 | 345 | 340-350 | 25 | 40 | 28 | 10 |
| 500 | 20 | 345 | 340-350 | 25 | 40 | 28 | 10 |
| 600 | 24 | 345 | 340-350 | 25 | 40 | 28 | 10 |
USE OF CONTROL UNITS WITH RUBBER FLEXIBLE JOINTS
A control unit assembly is an accessory of two or more control rod units (limit rods, tie rods or compression sleeves) placed between the flanges across a flexible joint to minimize possible destruction caused by excessive motion of a pipeline. When used in this manner, control units are an additional safety factor which can minimize possible damage to the adjacent equipment.
A control unit is strongly recommended to use when:
– In case that proper anchoring cannot be provided.
– In case that it is hard to withstand the line thrusts generated by internal pressure or wide temperature fluctuations.
– In case that the anticipated elongation, compression and lateral movement are more than the design, pre-gap and/or installation tolerance.
– In case that the anticipated angle of deflection is more than the design and/or installation tolerance.
RECOMMENDED QUANTITY FOR CONTROL RODS
| DN(mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 |
| Quantity(PN16) | N/A | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 |
| Quantity(PN25) | N/A | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 4 | 4 | – | – | – | – | – |
As a direct manufacturer, we have dedicated measurement, installation, and production teams to ensure a perfect fit every time.
Our representatives will contact you shortly to confirm your appointment date and time. Thank you for your interest!
