If you need RB (Rate/BOQ) content or item description for a DI Grooved Coupling, you can use the following:
DI Grooved Coupling – Item Description
Providing and fixing ductile iron (DI) grooved flexible/rigid coupling complete with EPDM rubber gasket, bolts, nuts, and all accessories, suitable for grooved-end DI/MS pipes of specified diameter, conforming to relevant standards and capable of withstanding the specified working pressure. The work shall include alignment, installation, tightening, testing, and commissioning complete as required.
Short BOQ Description
Supply and installation of DI grooved coupling with EPDM gasket, nuts, bolts, and accessories for grooved piping system, complete in all respects.
Technical Specification
Material: Ductile Iron (ASTM A536 / equivalent)
Gasket: EPDM/Nitrile as required
Finish: Red painted / Epoxy coated / Galvanized
Joint Type: Flexible or Rigid Grooved Coupling
Size: As per pipe diameter
Pressure Rating: As per manufacturer's standard
Includes: Housing, gasket, bolts, nuts, installation, and testing
If this is for a fire fighting BOQ, water supply BOQ, or CPWD/PWD tender item, I can format it accordingly.