
Rigid grooved coupling
009N Rigid Coupling
- Published sizes
- 2, 2½, 3, 4, 6, and 8 in
Compare grooved fittings and couplings for piping projects in the Philippines. Match each component style and size to the pipe, groove, gasket, and approved system requirements.

Grooved components are commonly considered for fire protection, commercial mechanical piping, and selected industrial utilities. The system design and manufacturer instructions determine the exact component and installation method.
Grooved pipe fittings and mechanical pipe couplings join prepared steel pipe ends with a housing, gasket, nuts, and bolts. Elbows, tees, reducers, caps, outlets, and flange adapters complete the piping layout. Grooved joints can simplify maintenance access and component replacement when the system design allows it.
Choose every component as part of one compatible system. For fire, water, air or other specified services, match the pipe outside diameter and groove with the component style, gasket, pressure, temperature, any required listing and manufacturer instructions. Nominal size alone does not confirm compatibility.
Victaulic covers the connection components; Supreme Red is the related fire-sprinkler pipe brand.
The cutaway explains the connection. Use the selected manufacturer’s instructions to specify and assemble the actual joint.

A similar appearance or nominal size does not establish compatibility between manufacturers.
Browse rigid and flexible couplings, elbows, tees, caps, reducers, branch outlets, and flange adapters. Use the image, item or style number, and published size set to identify the product your project calls for.

Rigid grooved coupling

Flexible grooved coupling

Grooved 90-degree elbow

Grooved 45-degree elbow

Grooved reducing tee

Grooved equal tee

Grooved end cap

Mechanical outlet tee

Threaded mechanical outlet tee

Grooved flange adapter

Grooved concentric reducer

Grooved eccentric reducer
Selection note: Product identities and published size references help identify the requested component. Confirm current availability, approval, and complete system compatibility before ordering.
Open only the component group you need. Keep its item or style number with the published size and pipe outside diameter during technical review.
Published size reference. Confirm current manufacturer data, actual pipe OD, groove, gasket, finish, pressure, listing, and availability.
| Style | Component | Published nominal sizesin | Corresponding pipe ODmm |
|---|---|---|---|
009N | Rigid coupling | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
Style 75 | Flexible coupling | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
Published size reference for No. 001 90-degree elbows, No. 003 45-degree elbows, No. 002 equal tees, and No. 006 end caps. Confirm the exact component and current technical data.
| Style | Component | Published nominal sizesin | Corresponding pipe ODmm |
|---|---|---|---|
No. 001 | 90-degree elbow | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
No. 003 | 45-degree elbow | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
No. 002 | Equal tee | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
No. 006 | End cap | 2, 2.5, 3, 4, 6, 8 | 60.3, 73.0, 88.9, 114.3, 168.3, 219.1 |
Published combinations. Confirm main and branch OD, thread or groove type, pressure, listing, gasket, and compatibility with the selected system.
| Style | Component | Published combinationsin |
|---|---|---|
Style 25 | Reducing tee | 4×4×3; 6×6×3; 6×6×4; 8×8×6 |
Style 927 | Grooved mechanical tee | 3×2; 4×2; 6×2; 6×3; 6×4 |
Style 927 | NPT mechanical tee | 3×1; 3×1.25; 3×1.5; 3×2; 4×2; 6×2 |
Style 741 | Flange adapter | 6; 8 |
No. 50 | Concentric reducer | 6×4 |
No. 51 | Eccentric reducer | 6×4 |
Treat pipe, groove, coupling or fitting, gasket, pressure, medium, listing, and installation instructions as one compatible system. Do not assume interchangeability.
| System type | Grooved mechanical piping |
|---|---|
| Published material | Ductile iron fittings and mechanical couplings |
| Published product range | Rigid and flexible couplings, elbows, tees, caps, flange adapters, and reducers |
| Published sizes | Selected products from 2–8 in |
| Compatibility | Check the exact pipe, groove, coupling and gasket against the approved system |
| Selection inputs | Pipe OD, groove, pressure, medium, temperature, gasket, listing, and installation requirements |
Rigid couplings restrain joint movement. Flexible couplings may allow controlled movement within their published limits. Follow the system designer’s specified style.
Send a quotation request with the item or style numbers, sizes, quantities, system requirements and delivery location. New customer? Find regional sales contacts for Luzon, Visayas or Mindanao.
Tell us what your piping project needs and share your component list or system specification.
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