
Pipe connection technology in steel and stainless steel: threaded fittings, valves, flanges and special turned parts with in-house manufacturing and warehousing.

ESVT Edelstahl- und Stahl-Verbindungstechnik GmbH
HattingenNew on Amplifa
About us
ESVT Edelstahl- und Stahl-Verbindungstechnik GmbH was founded on 1 July 2003 in Hattingen and specialises in pipe connection technology in steel and stainless steel. On more than 1,200 m² of warehouse space, the company stocks around 3,000 items, including threaded fittings, welded fittings, flanges, valves as well as steel and stainless steel pipes. In-house manufacturing covers sockets, nipples, weld ends, pipe double nipples, compression fittings and individual turned parts according to DIN EN 10241:2000; special turned parts are available in large quantities within one week. Production is carried out from seamless and welded pipe in steel ST37/52 as well as stainless steel grades such as 1.4301, 1.4404, 1.4541, 1.4571, 1.4539, 1.4828, 1.4841 and 1.4462. Customers come from industries such as plant and mechanical engineering, chemicals, petrochemicals, shipbuilding, offshore, the food industry, heating technology and vehicle/silo construction. Sales are handled via direct contact and an own online shop.
- Site
- Hattingen
- Processes
- Turning of special turned parts, Production of sockets, nipples, weld ends and pipe double nipples (custom-made products), Thread cutting (DIN EN 10226-1/ISO 7-1, G threads DIN EN ISO 228-1, NPT ASME/ANSI B1.20), Manufacture of fittings from seamless and welded pipe according to DIN EN 10241:2000, Acceptance test certificate EN 10204-3.1, optionally AD-2000-W2 and PED approval, Trading warehouse for threaded fittings, welded fittings, flanges, valves, pipes (steel and, In-house manufacturing of sockets, nipples, compression fittings and individual turned parts, Custom-made products (special turned parts in large quantities within one week)
- Materials
- ST37, ST52, Stainless steel 1.4301, Stainless steel 1.4404, Stainless steel 1.4541, Stainless steel 1.4571, Stainless steel 1.4539, Stainless steel 1.4828
- Certificates
- Acceptance test certificate EN 10204-3.1, AD-2000-W2 (optional), PED approval (optional)
- Founded
- 2003
- Employees
- approx. 5 (3 in
- Industries
- Agriculture, Construction industry, Plant and mechanical engineering, Fire protection, Chemical industry, Food industry
- 01
Consulting on pipe connections
- 02
In-house manufacturing (turned parts, sockets, nipples)
- 03
Purchasing via partners
- 04
Warehousing (3,000+ items)
- 05
Inspection with acceptance test certificate EN 10204-3.1
- 06
Shipping / online shop
Materials and Processes
Steel ST37
Used for steel sockets, weld ends and pipe double nipples in black and galvanised versions.
Steel ST52
Higher-strength structural steel for steel sockets, weld ends and pipe double nipples.
Stainless steel 1.4301
Standard stainless steel for seamless threaded fittings such as sockets and nipples.
Stainless steel 1.4404
Acid-resistant stainless steel for fittings and pipe connection parts.
Stainless steel 1.4541
Titanium-stabilised stainless steel for threaded fittings made from seamless pipe.
Stainless steel 1.4571
Heat-resistant, acid-resistant stainless steel for seamless fittings with test certificate.
Stainless steel 1.4539
High-alloy stainless steel for fittings in aggressive media.
Stainless steel 1.4828
Heat-resistant stainless steel for applications at elevated temperatures.
Stainless steel 1.4841
Heat-resistant stainless steel for pipe connections subjected to high temperatures.
Stainless steel 1.4462
Duplex stainless steel with high corrosion and strength resistance.
Cast steel 316
Rust- and acid-resistant cast steel for elbows, double nipples and closure screws.
Malleable cast iron
Threaded fittings made of malleable cast iron according to EN 10242.
Location

Hattingen
DEHeadquarters, warehouse, production
- Lot size
- Smallest quantities to large orders
- Materials
- Steel ST37/52, stainless steel 1.4301–1.4462, cast steel, malleable cast iron
- Warehouse space over 1,200 m²
Components and Products












Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Turning of special turned partsMachining | – | – | – | – | Steel, Stainless steel |
| Production of sockets, nipples, weld ends and pipe double nipples (custom-made products)Joining | – | – | – | – | ST37, ST52, Stainless steel |
| Thread cutting (DIN EN 10226-1/ISO 7-1, G threads DIN EN ISO 228-1, NPT ASME/ANSI B1.20)Machining | – | – | – | – | Stainless steel, Steel |
| Manufacture of fittings from seamless and welded pipe according to DIN EN 10241:2000Forming | – | – | – | – | Stainless steel |
| Acceptance test certificate EN 10204-3.1, optionally AD-2000-W2 and PED approvalTesting | – | – | – | – | – |
| Trading warehouse for threaded fittings, welded fittings, flanges, valves, pipes (steel andAssembly | – | – | – | – | Steel, Stainless steel |
Additional services
Quality
For fittings in stainless steel and steel, acceptance test certificates according to EN 10204-3.1 are issued, optionally with AD-2000-W2 and PED approval. Products are manufactured according to standards such as DIN EN 10241:2000 and thread standards (ISO 7-1, G threads, NPT).
| Evidence | Hattingen |
|---|---|
| Acceptance test certificate EN 10204-3.1 | |
| AD-2000-W2 (optional) | |
| PED approval (optional) |
History
- 2003
Founded on 1 July 2003 in Hattingen
Takeover of the warehouse of the company Woeste, thereby threaded fittings in steel in black and galvanised versions
Over 30 years of team experience
Expansion of the range with steel sockets, weld ends and pipe double nipples in ST37/52