OEM/ODM Titanium Pipe Fittings & Fasteners for the Dominican Republic Market

Titanium pipe fittings (elbows, tees, reducers, couplings) fall under HS Code 8108.90.70 or 8108.90.00 (Articles of titanium). When clearing through the DGA (Dirección General de Aduanas) at DP World Caucedo or Rio Haina, shipments are subject to standard tariffs (Arancel) typically ranging between 0% and 5%, plus the 18% ITBIS (Impuesto sobre Transferencias de Bienes Industrializados y Servicios).

If your enterprise operates under the Free Zone Incentive Law (Ley 8-90) or special mining concession status (such as contracts governed by the Dirección General de Minería), your imports may qualify for complete exemption from import tariffs and ITBIS. Navzo provides comprehensive commercial invoices, packing lists with net/gross weights, certificate of origin, and bill of lading (B/L) structured to facilitate seamless DGA clearance.

Fabrication and inspection at our Baoji facility typically take 2 to 4 weeks depending on batch size and custom machining requirements. Once dispatched, goods are routed via rail express to Qingdao, Ningbo, or Shenzhen port (3–4 days).

Direct ocean transit to the Caribbean (Caucedo or Rio Haina hub) typically ranges from 28 to 36 days via major shipping lines (such as Maersk, CMA CGM, or COSCO). For emergency plant turnarounds or critical mining outages, Navzo offers expedited air-freight routing via Las Américas International Airport (SDQ) with a total transit time of 5 to 8 business days.

Titanium is electrochemically noble (+0.05V to +0.20V in flowing seawater). When directly coupled to less noble metals (such as 316 stainless steel, carbon steel, or aluminum bronzes) in a conductive electrolyte like Caribbean seawater, the less noble metal will suffer accelerated galvanic attack.

To prevent this, our engineering team advises utilizing Lap Joint Flanges with MSS SP-43 titanium stub ends paired with dielectric insulation flange kits (comprising G10/FR4 insulating gaskets, Mylar/phenolic sleeves, and G10 washers). Alternatively, maintaining an anode-to-cathode surface area ratio where the titanium area is small, or applying an inert dielectric spool spacer (minimum 5 pipe diameters length), completely isolates the circuit.

Like stainless steel, titanium has a tenacious oxide layer that can generate localized micro-welding (galling) when male and female titanium threads are torqued together dry under high clamp loads. This is particularly prevalent in threaded NPT/BSPT titanium pipe fittings and titanium flange studs.

Navzo solves this through two methods: (1) We apply high-performance factory anti-galling surface finishes, such as micro-thin thermal oxidation, PVD titanium nitride coatings, or molybdenum disulfide dry film lubricants. (2) For on-site field assembly in Dominican facilities, we provide strict torque guidance and recommend nickel-free, marine-grade synthetic fluoropolymer anti-seize pastes designed specifically for reactive metals.

All Navzo pipe fittings, flanges, and fasteners are delivered with comprehensive Mill Test Certificates in full compliance with EN 10204 Type 3.1. These include chemical spectrometry analysis, mechanical tensile and elongation data, flattening/flare testing (for tubular fittings), and hydrostatic proof test verification.

For high-risk applications in mining or energy infrastructure, we routinely facilitate EN 10204 Type 3.2 certification witnessing through recognized international third-party inspection authorities, including SGS, Bureau Veritas (BV), TÜV SÜD, and DNV GL prior to vessel departure.