Grooved joint kits selected for controlled axial and angular movement
We supply flexible grooved coupling kits for piping layouts that call for controlled joint movement. The selected model defines its permitted pipe-end separation and angular deflection. Housing, gasket and fasteners are quoted together, with the pipe OD and groove profile retained on each item.
| Housing | Flexible grooved style in the selected model and pipe OD |
|---|---|
| Seal | Matching gasket profile and service compound |
| Fasteners | Specified bolt and nut set included with the kit |
| Movement data | Published axial/end-gap and angular limits for that model and size |
| Grooved ends | Compatible pipe material, wall and groove profile |
| Project records | Required model instructions, service data and applicable approvals |
The pipe OD identifies the connection series. Choose the model-specific movement data after matching the diameter, pipe and groove.
| Nominal size (in.) | DN | Pipe OD (mm) | Catalog bolts: quantity × diameter × length (mm) |
|---|---|---|---|
| 2 | 50 | 60.3 | 2 × M10 × 55 |
| 2-1/2 | 65 | 73.0 | 2 × M10 × 55 |
| 3 | 80 | 88.9 | 2 × M10 × 60 |
| 4 | 100 | 114.3 | 2 × M12 × 65 |
| 6 | 150 | 168.3 | 2 × M12 × 75 |
| 8 | 200 | 219.1 | 2 × M16 × 85 |
No matching specification. Clear the search to see every row.
Scroll sideways to see every column.
Selected rigid/flexible catalog rows, printed page 25. These are connection and fastener selections, not deflection limits. A 76.1 mm coupling is a separate OD series from the 73.0 mm selection above. Movement, pressure, groove preparation and tightening follow the actual offered model.
Permitted end separation and deflection vary with coupling size and design. Our offer identifies the proposed flexible model so its published limits can be checked against the movement required by the pipework.
Rolled and cut grooves create different pipe-end conditions. The selected coupling instructions identify the permitted preparation, pipe wall and groove dimensions. Each groove system keeps its own coupling.
Fluid, temperature and system duty determine the required seal. The complete assembly retains its specified gasket compound and profile, including any special requirements for dry or preaction service.
Pipe-end separation is set within the model instructions for the intended movement direction. Remaining travel in each direction follows from where the joint is set.
A routed offset uses the joint positions, pipe lengths and support arrangement shown in the engineered layout.
Pipe-end alignment and the gasket position are checked before the housing is secured. A damaged or mispositioned groove is corrected before the housing goes on.
Bolt-pad condition and tightening procedure come from that model’s instructions. Catalog diameter and bolt-length entries are dimensions only.
The piping layout may place flexible joints where relative movement needs to be accommodated. Supports and restraints control the pipe sections around those joints, including the effects of system pressure.
A flexible grooved connection can form part of an equipment piping arrangement. Nozzle alignment, vibration control and transmitted loads still belong to that arrangement.
The flexible housing reference is checked separately from a rigid model at the same OD. The housing reference identifies the style.
The seal profile seats within the housing and matches the specified pipe series. Bolt and nut contents are reconciled against that kit, with spare seals identified by their exact model and compound.
Where prepared pipe is supplied with the kits, its groove and gasket-seat condition are checked against the selected joint detail. The pipe wall and groove remain on the inspection item.
A material order can contain both joint styles. The quote and packing list retain their separate references and quantities, preventing a receiving substitution based only on pipe diameter.
Housing sets, seals and fasteners are counted as complete kits. Spare gaskets or hardware have their own lines and matching references, making the intended maintenance stock clear.
Divided packing keeps loose fasteners away from elastomer lips and finished housing faces. Carton quantities reconcile with the model-and-size schedule.
An equal-size coupling is matched to its stated pipe OD. A diameter change requires the identified reducing connection or reducer arrangement; extra movement allowance does not make the gasket fit another OD.
No. It is a mechanical coupling engaging grooves on the pipe ends, with movement limited by its housing, groove and seal arrangement. A rubber expansion joint has a different construction and design basis.
The revised joint behavior needs a piping-support review. Flexible joints can change the restraint and movement of a run, so an existing rigid-layout support arrangement is not assumed suitable without that review.
Outside diameter alone does not identify the gasket. The coupling model, pipe OD, seal profile and compound establish the spare part; rings of similar size can serve different housings or services.
No. The applicable approval record identifies the manufacturer, model, sizes and permitted assembly. Red coating or a galvanized housing does not establish that record.
The line is isolated, depressurized and made safe under the system’s maintenance procedure before disassembly. The coupling bolts are pressure-joint fasteners, not an operating valve or a means of releasing pressure.
Other items in the same product category.
We wrote these for buyers specifying and receiving exactly this kind of package.
Share the pipe ODs, required joint movement and proposed model references, with fluid, temperature and kit quantities. We will identify the flexible assembly, gasket and included hardware in the supply quote.