Industrial valves for Turkey: ordering from Tashkent for Istanbul projects

Istanbul has a deep local valve market, so an overseas manufacturer only makes sense when it solves a concrete problem: large-diameter gate valves, GOST-designed replacements for existing plants, cast-iron and ductile-iron water valves in volume, or a second qualified source for a project schedule. This guide explains how a Turkish buyer can place a workable order with TAZ, a valve manufacturer in Tashkent, Uzbekistan, and what has to be agreed before the price is compared.

TAZ Engineering & Export Team · 2026-10-21 · 11 min

When a Tashkent factory is a sensible source for Turkey

Turkish buyers usually contact a Central Asian manufacturer for one of four reasons. The first is replacement of GOST-pattern valves in plants, pumping stations and district-energy networks originally designed to Soviet or Russian standards, including projects that Turkish contractors execute in Central Asia, the Caucasus and Russian-speaking markets. The second is large-diameter gate and butterfly valves where local stock is limited. The third is a project that needs a second approved vendor to protect the schedule. The fourth is a contractor building in Uzbekistan or neighbouring countries that wants valves delivered locally rather than shipped from Turkey.

If the order is a small quantity of standard EN valves that a Turkish distributor holds in stock, a local supplier will normally win on delivery time. The value of an overseas source is highest for engineered, larger or repeat orders where the specification is fixed in advance.

Send a specification, not a product name

A useful enquiry lists the service medium, design pressure and temperature, DN range, PN class or ASME rating, end connection and flange standard, face-to-face standard, body and trim materials, seat type, operator or actuator, test standard and required documents. Add the tag list and quantities per size. A model name alone, for example 30s41nzh or a catalogue photo, identifies a design family but does not define the execution.

For flanges, state whether the line is drilled to EN 1092-1, ASME B16.5 or GOST 33259. For face-to-face length, state EN 558, ASME B16.10 or the GOST dimension of the valve being replaced. These two points cause most of the rework on cross-standard orders, and they are cheap to settle before production.

medium, pressure, temperature and DN for every tag
flange standard and face-to-face series
body, wedge or disc, seat and stem materials
operator: handwheel, gearbox or electric actuator, with power supply
test standard and leakage rate
document list and language

Regulatory route: Turkey applies the EU pressure equipment rules

Turkey is in a customs union with the European Union for industrial goods and has transposed the Pressure Equipment Directive 2014/68/EU into its national Pressure Equipment Regulation. In practice this means a valve placed on the Turkish market that falls inside the directive scope, and above the sound engineering practice limits, needs a conformity assessment route and CE marking in the same way as in the EU.

Whether a particular valve needs CE marking depends on the fluid group, the maximum allowable pressure and the nominal size. Some small valves fall under sound engineering practice and must not carry the CE mark at all. Valves supplied for installation outside Turkey, for example a Turkish contractor building a plant in Turkmenistan or Uzbekistan, follow the rules of the destination country instead. Agree the destination and the conformity responsibility at enquiry stage, and ask TAZ which documentation is available for the selected execution. Do not assume that a GOST certificate of conformity replaces a PED route.

Commercial terms that work for Turkey

Quote on a named Incoterm. FCA Tashkent is the cleanest option when the Turkish buyer has its own forwarder on the Central Asia lanes. DAP Istanbul or DAP a project site moves the transport risk to the seller and is easier for a distributor that does not import from Central Asia regularly. In both cases the quotation should state packing, gross weight, dimensions and the export documents included.

Uzbekistan and Turkey operate a preferential trade agreement whose product list was expanded in 2026, but it covers a limited list of goods. Check whether the relevant HS 8481 subheading is on the list before counting on a reduced duty. Otherwise the normal Turkish tariff applies, and the certificate of origin is still needed for statistics and the customs declaration.

Inspection before shipment

Most Turkish EPC contractors require a factory inspection before release. Agree the inspection and test plan with hold and witness points, the test standard (for example EN 12266-1, API 598 or ISO 5208) and the leakage acceptance criterion. A third-party inspector can witness shell and seat tests in Tashkent, check marking against the datasheet and review material certificates.

Ask for the document package in English, with serial numbers that match the test reports and the packing list. If the end user is a Turkish municipality or utility, confirm early whether drinking-water material approvals or a specific coating system is required.

Transport from Tashkent to Istanbul

Valves move from Uzbekistan to Turkey by road, by rail through Turkmenistan and Iran, or by the trans-Caspian route through Kazakhstan, the Caspian Sea, Azerbaijan and Georgia, including the Baku–Tbilisi–Kars railway. The best route depends on cargo size, current border conditions and the forwarder’s schedule, so transit time should be confirmed in the freight quotation rather than assumed.

Heavy valves need seaworthy crates even on land routes, because multimodal transfers and outdoor storage expose them to condensation. Openings must be capped, stems protected and the closure position fixed for transport.

How to start an order with TAZ

Send the valve list with the data above to the TAZ technical sales team. TAZ returns a technical offer with the proposed execution, deviations, test plan and delivery basis. Production slots, lead time and price are fixed in that offer for the agreed execution. For a first order, a pilot quantity with witnessed testing is the fastest way for a Turkish buyer to approve a new source.

Checklist

tag list with DN, PN and service
flange and face-to-face standards
materials and seat type
operator or actuator data
destination country and PED responsibility
test standard and leakage rate
inspection and witness points
document list in English
Incoterm and named place
packing and preservation requirements