About Grooved Coupling
DPL Grooved Couplings provides better rigid connections for valves, fire mains, long straight runs etc.
Coupling Housings are made of Ductile Iron confirming to ASTM A 536 with rated working pressure up to 20 Bar / 300 PSI.
BPDM rubber Gaskets are suitable for installations with service temperature of -34C to 105C I -30F to 221F.
Couplings are supplied with Red painted RAL 3000 as standard Other RAL colours or Galvanised finish is available upon request.
Durable Construction with Superior MaterialsManufactured from carbon steel and ductile iron with a zinc-plated or epoxy coating, the grooved coupling delivers robust tensile and yield strength while ensuring exceptional resistance to corrosion. Its section shape is circular, thickness is 5 mm, and the outer surface is treated for durability and longevity, making it well-suited for both indoor and outdoor applications in challenging environments.
Versatile Applications for Multiple IndustriesThis grooved coupling is suitable for fire protection, HVAC, and water supply systems. With a quick and easy mechanical connection method, it is designed for grooved-end pipes ranging from 2 to 12 inches in diameter. The versatile sealing type, rigid or flexible configuration, and high-rated pressure capacity make it a preferred choice for efficient pipeline installations.
Outstanding Performance and Safety StandardsTested under a leakage pressure of 2.5 MPa and fire-resistant by design, this coupling meets stringent international standards. It has a rated pressure of 300 PSI and operates efficiently from -30C to +110C. Compliance with ASTM A536 and ISO 2531 guarantees top-tier quality, offering superior reliability and peace of mind to engineers and installers.
FAQ's of Grooved Coupling:
Q: How is the Grooved Coupling installed, and what makes the process efficient?
A: The Grooved Coupling is installed using a quick and easy mechanical process that requires minimal tools. Simply position the coupling on the grooved ends of the pipes, fit the EPDM gasket, and tighten the bolt and nut. This method significantly reduces installation time compared to traditional welded joints and simplifies future maintenance or modifications.
Q: What are the key benefits of using this grooved coupling in pipeline systems?
A: Key benefits include a long service life (minimum 50 years), exceptional corrosion and fire resistance, high leak-proof reliability, and the capability to compensate for axial pipe displacement up to 5 mm. Its ease of installation and flexibility make it suitable for a variety of industries, including fire protection, HVAC, and water supply.
Q: When should I choose EPDM, NBR, or Viton for the gasket material?
A: EPDM is ideal for water and general purpose applications, providing excellent temperature and weather resistance. NBR is suited for oil and gas or petroleum-based fluids. Viton offers superior chemical and high-temperature resistance, making it suitable for aggressive media. Your choice depends on the fluid being transported and the system requirements.
Q: Where can the grooved coupling be used given its temperature and pressure ratings?
A: This coupling can be deployed in both indoor and outdoor systems with operating temperatures ranging from -30C to +110C and can handle pressures up to 300 PSI. It is suitable for commercial, industrial, and infrastructural installations such as building plumbing, fire protection, and air conditioning systems.
Q: What standards does this product comply with and why is that important?
A: The grooved coupling conforms to ASTM A536 and ISO 2531 standards. Compliance ensures that the product meets strict materials, performance, and safety criteria, providing assurance of longevity, operational safety, and compatibility with international projects.
Q: How does the high corrosion resistance benefit long-term operation?
A: The zinc-plated or epoxy-coated surface, combined with carbon steel and ductile iron construction, provides robust defense against rust and corrosion. This extends the product's lifespan, reduces maintenance costs, and ensures consistent performance throughout its minimum 50-year rated working life.