GOST · FLANGES · FITTINGS · VALVES · FOB QINHUANGDAO / TIANJIN

Flanges, fittings and valves to GOST for heating, water and oil & gas lines

We source and QC cast steel and cast iron parts from 2–3 verified foundries in Hebei: batch documentation, DN / PN compliance, FOB Qinhuangdao / Tianjin.

GostPipe Sourcing is an independent export service: we match a factory to your specification, control the lot before shipment and prepare the documents. The range covers GOST 12820, 12821, 33259, 17375–17378 and 5762; loading is FOB Qinhuangdao or Tianjin, and quotes are answered within 24 hours.

ГОСТ 33259 / 12820 / 12821
Supply standards
2–3
Verified foundries
RU / EN
Support in two languages
FOB
North China ports
Best sellers

Best sellers

Four product groups that most often cover the needs of heating, water and auxiliary oil & gas projects.

Чугунный фланец по ГОСТ 33259-2015
ГОСТ 33259-2015

Cast iron flanges GOST 33259

For heating and water supply lines, DN 15–300

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Стальной плоский приварной фланец ГОСТ 12820-80
ГОСТ 12820-80

Steel flanges GOST 12820

Flat weld-on flanges, PN 6–25

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Тройник равнопроходной по ГОСТ 17376-2001
ГОСТ 17375–17378

Elbows & tees

Seamless fittings for tie-ins and manifolds

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Задвижка фланцевая по ГОСТ 5762-2002, общий вид
ГОСТ 5762-2002

Flanged gate valves

Shut-off valves for auxiliary lines

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What we supply

What we supply

Three product groups that can be combined into one FOB shipment.

Cast iron flanges

СЧ20 / ВЧ50, PN 6–16, for heating and water systems

Steel flanges

Steel 20 / 09Г2С, weld-on and WN types, for on-site installation

Fittings & valves

Elbows, tees, reducers, gate and check valves in one shipment

Why us

Why buyers work with us

We are a sourcing and order follow-up service, not a manufacturer. Our value is in controlling standards, documents and shipment.

Exact GOST matching

Items are matched to your specific GOST and drawing, no DIN / ANSI substitution

Batch documentation check

Mill certificates, batch reports and marking verified before shipment

FOB & packing calculation

Volume, weight and container loading plan for your port

Bilingual follow-up

Correspondence in Russian and English from inquiry to document closure

About

About the service

GostPipe Sourcing is an independent export sourcing service. We do not manufacture: we match your GOST requirements with specialist foundries in Hebei, verify documentation, inspect the batch and coordinate shipment.

You work with one coordinator, while the supplying factory stays contractually responsible for product quality.

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Погрузка фланцев в контейнер на заводе
Projects

Selected projects

Supply cases across heating, water supply and auxiliary oil & gas projects.

Heating

Cast iron flanges GOST 33259

Customer: heating contractor. Delivery for a district heating network.

Water supply

Flanges + fittings

Customer: installation company. Water supply node equipment.

Oil & gas

Steel flanges + gate valves

Customer: distributor. Auxiliary pipeline.

Mixed lot

Flanges / fittings / valves

Customer: wholesale buyer. Mixed warehouse loading.

News

News & guides

Guides on pricing, FOB terms and cargo receiving.

What makes up the FOB price of flanges and fittings

Metal, casting, machining, packing and delivery to port

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FOB terms: import and customs clearance in the EAEU

What the seller handles and what stays with the buyer

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Cargo receiving checklist: markings, documents, measurements

A step-by-step check of the batch at your warehouse

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Send your specification — we reply within 24 hours

Lead time confirmed per specification FOB Qinhuangdao / Tianjin Factory warranty obligations
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FAQ

Common questions

No. GostPipe Sourcing is an independent export sourcing and follow-up service. We select verified foundries and inspect the batch and paperwork; the contract, payment and quality responsibility stay with the manufacturing factory.
Yes. Mill certificates and product reports for every batch; copies are sent before shipment.
The exact minimum order quantity depends on the item and is confirmed per specification.
Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Azerbaijan. Shipment is FOB Qinhuangdao / Tianjin; inland freight to your destination is quoted on request.
Yes. Our foundries work to your drawing or sample: tolerances, material and key measurements are agreed before the batch starts.