Connectors & Compensators
Flanged Expansion Joint
Double flanged expansion joint for installation error compensation. Standard: Q235 carbon steel, seamless pipe under DN300, epoxy coated. Standard bolts 4.8 grade, premium 8.8 grade. DN100 to DN1200.
Inquire NowSpecifications
| Model | DN | NPS | OD (mm) OD (in) |
|---|---|---|---|
| DN100 (双法兰传力伸缩器) | DN100 | 4" | 118 mm 4.65" |
| DN100 (双法兰限位伸缩器) | DN100 | 4" | 118 mm 4.65" |
| DN125 (双法兰传力伸缩器) | DN125 | 5" | 144 mm 5.67" |
| DN125 (双法兰限位伸缩器) | DN125 | 5" | 144 mm 5.67" |
| DN150 (双法兰传力伸缩器) | DN150 | 6" | 170 mm 6.69" |
| DN150 (双法兰限位伸缩器) | DN150 | 6" | 170 mm 6.69" |
| DN200 (双法兰传力伸缩器) | DN200 | 8" | 222 mm 8.74" |
| DN200 (双法兰限位伸缩器) | DN200 | 8" | 222 mm 8.74" |
| DN250 (双法兰传力伸缩器) | DN250 | 10" | 274 mm 10.79" |
| DN250 (双法兰限位伸缩器) | DN250 | 10" | 274 mm 10.79" |
| DN300 (双法兰传力伸缩器) | DN300 | 12" | 326 mm 12.83" |
| DN300 (双法兰限位伸缩器) | DN300 | 12" | 326 mm 12.83" |
| DN350 (双法兰传力伸缩器) | DN350 | 14" | 378 mm 14.88" |
| DN350 (双法兰限位伸缩器) | DN350 | 14" | 378 mm 14.88" |
| DN400 (双法兰传力伸缩器) | DN400 | 16" | 429 mm 16.89" |
| DN400 (双法兰限位伸缩器) | DN400 | 16" | 429 mm 16.89" |
| DN450 (双法兰传力伸缩器) | DN450 | 18" | 480 mm 18.90" |
| DN450 (双法兰限位伸缩器) | DN450 | 18" | 480 mm 18.90" |
| DN500 (双法兰传力伸缩器) | DN500 | 20" | 532 mm 20.94" |
| DN500 (双法兰限位伸缩器) | DN500 | 20" | 532 mm 20.94" |
| DN600 (双法兰传力伸缩器) | DN600 | 24" | 635 mm 25.00" |
| DN600 (双法兰限位伸缩器) | DN600 | 24" | 635 mm 25.00" |
| DN700 (双法兰传力伸缩器) | DN700 | 28" | 738 mm 29.06" |
| DN700 (双法兰限位伸缩器) | DN700 | 28" | 738 mm 29.06" |
| DN800 (双法兰传力伸缩器) | DN800 | 32" | 842 mm 33.15" |
| DN800 (双法兰限位伸缩器) | DN800 | 32" | 842 mm 33.15" |
| DN900 (双法兰传力伸缩器) | DN900 | 36" | 945 mm 37.20" |
| DN900 (双法兰限位伸缩器) | DN900 | 36" | 945 mm 37.20" |
| DN1000 (双法兰传力伸缩器) | DN1000 | 40" | 1048 mm 41.26" |
| DN1000 (双法兰限位伸缩器) | DN1000 | 40" | 1048 mm 41.26" |
| DN1200 (双法兰传力伸缩器) | DN1200 | 48" | 1255 mm 49.41" |
| DN1200 (双法兰限位伸缩器) | DN1200 | 48" | 1255 mm 49.41" |
Frequently Asked Questions
What pipe types does the Flanged Expansion Joint connect?
Designed for ductile iron, carbon and galvanized steel, PE (HDPE), PVC, asbestos-cement. Handles dissimilar-material joints, repair couplings, flange adaptations, and flexible connections that absorb thermal expansion and minor pipe misalignment.
What is the diameter range and maximum working pressure?
Available across DN100 to DN1200, rated for 1.0 / 1.6 MPa. Higher pressure ratings are offered on request.
What materials are available?
Construction — shell: Q235 carbon steel (epoxy-coated) · seal: Rubber gasket. Ductile-iron and stainless-steel body options, with EPDM or NBR elastomers depending on service fluid.
What is the lead time and how is it shipped?
Standard lead time is 15 working days ex-factory, shipping FOB Shanghai. Sea, air, and combined transport are arranged through PipeKnot to over 40 countries. Volume orders and project tenders receive priority scheduling.
Is installation guidance and technical support included?
PipeKnot provides English-language installation drawings, torque specifications, and remote technical support. On-site commissioning support can be arranged for qualifying projects in partnership with Anhui Tongfa field engineers.
