Production Specifications of Wide Range Flexible Coupling

Material body: Ductile Iron grade 500-7/450-10 in accordance with ISO1083 or 70-50-05/65-45-12 with ASTM A536.

Gland: Ductile Iron grade 500-7/450-10 in accordance with ISO1083 or 70-50-05/65-45-12 with ASTM A536.

Gasket: Rubber EPDM/SBR/NR in accordance with EN681.1

Bolts and Nuts: Carbon Steel grade 8.8/6.8/4.8 with dacromet coating/galvanization.

Features: Wide joint range, suitable for the joint of DI/PE/PVC/STEEL pipe; Vibration absorption, end movements and angular deflection +/-8 degree.

Pressure Rating: PN10/PN16

Application Introduction of Wide Range Flexible Coupling

The Universal Couplings are designed for pipelines as a wide tolerance system. it will fit most standard pipe materials and therefore dramatically reduces the number of dedicated Couplings,which need to be stocked for maintenance purposes. It is suitable for steel, GRP, PVC, PE, Ductile Iron, Cast Iron and Asbestors Cement. When connecting PE pipes, It is important that pipe inserts are fitted to the PE pipes.

Packing & Delivery of Wide Range Flexible Coupling

Packing: Wood crates/Wood pallets/As per customers' requirements

Delivery: By Container or bulk.

Production Flow & Inspection of Wide Range Flexible Coupling

*Automatics machine lines*

*Resin Sand*

*Molding Boards*

*Green Sand with hand molding*

*Foundry in-house*

Ps: Third Party Inspection is also available upon request. More information is available upon receipt of your enquiry.

Process & Installation Instructions of Wide Range Flexible Coupling

1. Examine the pipe ends and ensure they are round, smooth, free from buldges, dents and score marks and within the outside diameter range given on the adaptor label. Weld beads must be ground flush maintaining correct surface profile. Ensure that pipe ends are free from scale rust or any loose debris or other surface defect that may affect coupling performance.

2. Check grade of gasket is suitable for the conveyed medium.

3. Align pipe to be laid with pipe already in position, taking care that pipe ends are concentric, adjusting support or trench bed as necessary.

4. To aid installation, mark both pipe ends at a distance equal to or greater than half the overall coupling assembled width of the coupling. Place wholly on one pipe end.

5. Adjust setting gap between pipe ends as necessary.

6. Using marks made at step 4, slide the coupling to a central position over the pipe ends and commence bolt-up.

7. Tighten diametrically opposed bolts giving the nuts one or two turns at a time to draw up the end rings evenly. The bolts must be thoroughly tightened to the figures given below, working around the coupling as many times as necessary. On completion, the radial gap between pipe end coupling should be even all the way round rubber may be seen to extrude into the gap.