About Dth Group - Flanges Supplier in Sri Lanka

Sri Lanka-based Dth Group lists nine active products across pipe fittings, PVC panels and rubber processing. The catalogue includes tyre retreading services, PVC pipe systems under the Tirupati Superflow brand, Silver Line wall PVC panels, reclaimed rubber, pre‑cure tread rubber and a series of metal pipe components - pipe FAPT, pipe coupler, pipe tee and elbows - each assigned to HS‑code families 7307.23, 7307.99 and 7304.29. Materials specified range from stainless steel grades 304/316 and carbon steel WCB (zinc‑plated or galvanized) to alloy and ductile iron, as well as PVC compounds for the panels and pipes.

The product list reflects Dth Group’s focus on industrial piping and rubber‑based tyre services. The pipe items are classified under HS Chapter 73 (iron and steel products), while the PVC items fall under Chapter 39, and the rubber products are covered by Chapter 40. The nine entries collectively address needs of infrastructure, automotive and manufacturing sectors that require pressure‑rated pipe fittings, durable wall panels and rubber compounds for tyre maintenance.

Product Range and Specialties of Dth Group

The catalogue offers PVC pipe and panel solutions such as the Tirupati Superflow series and Silver Line wall panels. In the industry, PVC pipe grades are commonly produced to ASTM D1785 dimensions, with pressure ratings from PN10 to PN25 and wall thicknesses measured in millimetres. Wall panels typically meet EN 14679 fire‑performance criteria and are supplied in sheet sizes of 2 m × 1 m, thickness 4 - 6 mm. Metal pipe fittings listed - FAPT, coupler, tee and elbow - are fabricated from stainless steel 304/316, carbon steel WCB, alloy steel (ASTM A519) and malleable or ductile iron, conforming to ASTM A53 and API 5L specifications for pipe connections.

Rubber‑related items include tyre retreading services, reclaimed rubber and pre‑cure tread rubber. Standard tyre retreading rubber is graded by hardness (Shore A 60‑70) and tensile strength (≥ 15 MPa), while reclaimed rubber is typically processed to meet ISO 9001 quality‑management and ISO 14001 environmental standards. Pre‑cure tread compounds are formulated to achieve tread depth specifications of 1.6 mm and rolling resistance values below 0.10 kN·m.

Trade and Export Information - Dth Group

Sri Lanka exports steel pipe fittings and PVC products primarily to South Asian neighbours, the Middle East and African markets, where construction and water‑distribution projects drive demand. HS‑code 7307 covers welded steel tubes and fittings, while 7304.29 includes other steel pipe accessories; both codes are subject to customs inspections for material certification and conformity to ASTM or EN standards. PVC pipe and panel shipments fall under HS‑code 3917 and 3918, often requiring a CE Declaration of Conformity for European buyers.

Buyers typically request mill test reports, material safety data sheets and compliance certificates such as ISO 9001, ISO 14001 or specific automotive quality standards (IATF 16949) when sourcing from Sri Lankan manufacturers. Standard export logistics involve 20‑ft or 40‑ft containers packed on wooden pallets, with moisture‑resistant dunnage for rubber items and steel coatings protected by corrosion‑inhibiting wraps. Incoterms most frequently used are FOB Colombo and CIF for regional ports.

Sourcing from Dth Group - Buyer Guidance

When sourcing pipe fittings from Dth Group, request the mill test report that confirms grade, chemical composition and mechanical properties against ASTM A519 or EN 10210. Verify the HS‑code declared matches the product description and ask for a third‑party inspection certificate if the shipment is destined for regulated markets.

For PVC panels and pipes, obtain the product data sheet showing dimensions, pressure rating (PN) and fire‑performance classification. Rubber products should be accompanied by a hardness test report, tensile strength data and evidence of reclaimed‑rubber processing under ISO 9001. Confirm packaging details - e.g., 20 kg bags for rubber, palletized bundles for steel fittings - and typical lead times of 30‑45 days after order confirmation.

What product categories does Dth Group list?

Dth Group lists nine products covering tyre retreading, PVC pipe systems, wall PVC panels, reclaimed and pre‑cure tread rubber, and metal pipe components such as FAPT, coupler, tee and elbow, classified under HS‑codes 7307.23, 7307.99 and 7304.29.

Which material grades are used for the metal pipe fittings?

The fittings are manufactured from stainless steel grades 304/316, carbon steel WCB (zinc‑plated or galvanized), alloy steel meeting ASTM A519, malleable iron, ductile iron and stainless steel 304/316 for elbows, as specified in the catalogue.

What standards should buyers check for PVC pipe products?

Buyers should confirm compliance with ASTM D1785 dimensions, pressure ratings (PN10‑PN25) and, for panels, EN 14679 fire‑performance criteria, together with a CE Declaration of Conformity where applicable.

What documentation is typically required for rubber‑based products?

Standard documentation includes a hardness (Shore A) test report, tensile strength data, ISO 9001 quality‑management certificate and, for reclaimed rubber, a material safety data sheet.

What are the common HS‑code families for Dth Group’s pipe items?

Pipe FAPT is listed under HS 7307.23, pipe coupler and tee under HS 7307.99, and pipe elbows under HS 7304.29, all falling within Chapter 73 for iron and steel products.

Which Incoterms are most often used for shipments from Sri Lanka?

Export transactions commonly use FOB Colombo for buyer‑arranged freight or CIF for regional ports, aligning with standard maritime practices.

What are typical packaging and container options for these products?

Metal fittings are palletized in wooden crates for 20‑ft or 40‑ft containers, PVC panels are wrapped in protective film and stacked on pallets, while rubber products are bagged (e.g., 20 kg bags) and secured with moisture‑resistant dunnage.