Mechanical Joint Flange Adaptor
Mechanical joint restrained flange adaptor adds locking wedge on the basis of common flange adaptor to avoid the pipe from coming out, specially designed for the working condition where the pipe may stretch, deflect and so on which cause the sealing failure, it is the strengthened type flange adaptor. locking wedge can be changed and customized according to the outer diameter of the pipe, pipe material, sealing pressure, customer requirements and so on.
Specification
Mechanical Joint flange adaptor standard:comply with EN545/EN12842/AWWA C219/AS/NZS2280
Flange standard EN1092-2 PN10/PN16 or ANSIB16.5 ANSIB16.47 class125&150 AS4087 Table D/Talbe E
Coating standard:EN30677
Test standard: EN12266-1
Working pressure and Temperature
size DN350 to DN1200,Working pressure PN10/PN16
Temperature from -10℃ to 120℃ for EPDM gasket
Temperature from -10℃ to 82℃ for NBR gasket
Usage
Connection for HDPE,Ductile iron,Steel,GRP etc pipe
Angular deflection ±3°
Suitable for potable water,neutral liquids and sewage
WRAS,ACS,DVGW,NSF approved
Video
DN50 PN25 Wide Range
DN400-1000 PN10/16 for PE Pipe
DN500 PN25 for DI Pipe
Design
Restrained mechanical flange adaptor can be wide range type which can be used for many different pipes which pipe OD is in our designed range, or dedicated type which can only be used for one specific pipe.
Also the wedge No. can also be customized according to pipe material, pipe outside diameter, pipeline working pressure and client requirement.
Working Principle
Drawing
Material specification
| Sr.No. | Name | Material |
|---|---|---|
| 1 | Body | Ductile iron |
| 2 | Gasket | EPDM |
| 3 | Threaded tie rods | Gla.steel grade 4.8 |
| 4 | Grip | zinc plated cast iron +carbon steel grade 4.8 |
| 5 | End ring | Ductile iron |
Options:Grade 4.8/6.8/8.8 carbon steel bolts with galvanization/dacromet/teflon etc
Stainless steel SS304/SS316/SS316L/A2/A4 etc bolts
FBE coating and Nylon 11 coating is available
Dimension
Please note restrained mechanical flange adaptor can be customized according to actual pipe material, pipe outside diameter, pipeline working pressure and client requirement etc.Below dimension is restrained mechanical flange adaptor for HDPE pipe design, only for reference.
| DN | OD | D | K | L | H | ФxN(mm) | M1xNo.(mm) | M2xNo.(mm) | NOTE |
|---|---|---|---|---|---|---|---|---|---|
| 300 | 355 | 455 | 410 | 140 | 200 | 28X12 | M16x6 | M16x6 | Steped |
| 350 | 355 | 520 | 470 | 100 | 170 | 28X16 | M16x8 | M16x8 | straight |
| 400 | 425 | 580 | 525 | 150 | 220 | 31X16 | M16x8 | M16x8 | steped |
| 400 | 400 | 580 | 525 | 100 | 170 | 31X16 | M16x8 | M16x8 | straight |
| 450 | 455 | 640 | 585 | 100 | 170 | 31X20 | M16x10 | M16x10 | straight |
| 500 | 500 | 715 | 650 | 110 | 190 | 34X20 | M16x10 | M16x10 | straight |
| 600 | 630 | 840 | 770 | 110 | 190 | 37X20 | M16x10 | M16x10 | straight |
| 700 | 710 | 910 | 840 | 120 | 200 | 37X24 | M16x12 | M16x12 | straight |
| 800 | 800 | 1025 | 950 | 120 | 210 | 40X24 | M16x12 | M16x12 | straight |
| 900 | 900 | 1125 | 1050 | 140 | 240 | 40X28 | M16x14 | M16x14 | straight |
| 1000 | 1000 | 1485 | 1170 | 40 | 240 | 43X28 | M16x14 | M16x14 | straight |
| 1200 | 1200 | 1685 | 1390 | 150 | 260 | 49X32 | M16x16 | M16x16 | straight |
