Develops and manufactures flame arresters, pressure/vacuum vent valves and tank equipment for explosion protection and emission reduction.
Braunschweiger Flammenfilter GmbH
Braunschweig (Industriestr. 9/11) · Braunschweig (Technology Centre, Auf dem Anger 4R) · Lehre (Testing Ground, Kampstüh)New on Amplifa
About PROTEGO
Braunschweiger Flammenfilter GmbH (PROTEGO) has been developing and manufacturing flame arresters (deflagration and detonation flame arresters, end-of-line and in-line), pressure/vacuum vent valves, emergency vent valves and tank equipment such as in-tank valves, floating suction devices, roof inlets and gauging and sampling devices since 1954. Products are made predominantly from steel, stainless steel and aluminium, with castings (sand casting, precision casting) and forged/flame-cut parts purchased and welded, assembled and tested in-house. All valves and flame arresters are flow-tested; the PROTEGO Technology Center in Braunschweig operates a certified flow test facility according to API 2000, DIN EN ISO 28300 and DIN EN ISO 16852, as well as a climate chamber (-70 °C to +150 °C), a cryogenic test rig and a salt spray chamber. Customers come from the oil and gas industry (up- and downstream), petrochemicals, chemicals and pharmaceuticals, cryogenics and hydrogen technology, marine and offshore, biogas and power-to-X applications as well as tank farms. The third-generation family business employs more than 750 people worldwide and delivers as an OEM component supplier as well as with engineering service, maintenance and repair.
- Site
- Braunschweig
- Processes
- Manufacture of flame arresters (deflagration flame arresters end-of-line / in-line,, Manufacture of pressure/vacuum vent valves and emergency vent valves, Manufacture of tank equipment (in-tank valves, floating suction devices, roof inlets, gauging and, Welding (Welding Workshop Approval DNV-CP-0352, piping systems, flame arresters, valves,, Development, design, production, maintenance and repair of flame arresters,, Flow testing of pressure/vacuum vent valves, flame arresters,, Function testing of cryogenic valves (LIN/LOX/LAR tanks) on the cryogenic test rig, Climate chamber tests from -70°C to +150°C and salt spray corrosion tests (marine conditions)
- Materials
- Aluminium, Stainless steel, Steel, Special materials, Sand casting and precision casting
- Certificates
- ISO 9001:2015, ISO 14001:2015, PED 2014/68/EU Module H/H1, ATEX 2014/34/EU, AD 2000 HP0, DNV Welding Workshop Approval, TP TC 032/2013 / TP TC 010/2011 (EAEU), Bureau Veritas Recognition BV Mode II, Flow test facility certificate (API 2000, ISO 28300, ISO 16852), ISO 9001, ISO 14001, TÜV flow test facility certificate
- Founded
- 1954
- Employees
- 750+
- Industries
- Oil and gas (up- and downstream), Marine and offshore, Chemical and pharmaceutical processing, Cryogenics, hydrogen and technical gases, Waste and wastewater, Food & Beverage
- 01
Engineering and design
- 02
Purchasing of cast and forged parts
- 03
Welding
- 04
Assembly
- 05
Flow and function testing
- 06
Maintenance and repair
Materials and Processes
Sand casting and precision casting
Purchased castings made of steel, stainless steel, aluminium and special materials, raw or machined.
Steel
Material for flame arresters, valves, tank equipment and welded constructions.
Stainless steel
Used for corrosion- and chemical-resistant safety engineering components.
Aluminium
Used for valves and tank equipment.
Special materials
Procured for application-specific requirements along the supply chain.
Sites
Braunschweig
DEHeadquarters and production
- Materials
- Steel, stainless steel, aluminium
- Welding workshop (DNV Welding Workshop Approval)
- Assembly
- Low-pressure measuring systems
Braunschweig – Technology Centre
DEResearch, development and testing
- Certified flow test facility (flow test according to API 2000, ISO 28300, ISO 16852)
- Climate chamber -70 °C to +150 °C
- Cryogenic test rig
- Salt spray chamber
- Valve test rig
- Mechanical workshop
- Electrical and laboratory area
Lehre
DETesting Ground (test site)
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacture of flame arresters (deflagration flame arresters end-of-line / in-line,Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Manufacture of pressure/vacuum vent valves and emergency vent valvesAssembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Manufacture of tank equipment (in-tank valves, floating suction devices, roof inlets, gauging andAssembly | – | – | – | – | Aluminium, Stainless steel, Steel |
| Welding (Welding Workshop Approval DNV-CP-0352, piping systems, flame arresters, valves,Joining | – | – | – | – | Steel, Stainless steel |
| Development, design, production, maintenance and repair of flame arresters,Engineering | – | – | – | – | – |
| Flow testing of pressure/vacuum vent valves, flame arresters,Testing | – | – | – | – | – |
| Function testing of cryogenic valves (LIN/LOX/LAR tanks) on the cryogenic test rigTesting | – | – | – | – | – |
| Climate chamber tests from -70°C to +150°C and salt spray corrosion tests (marine conditions)Testing | – | – | – | – | – |
| Purchasing of castings (sand casting and precision casting) made of steel, stainless steel,Casting | – | – | – | – | Steel, Stainless steel, Aluminium, Special materials |
| Purchasing of forged/flame-cut parts (rings, discs, components) as curved and cut-to-length blanksForming | – | – | – | – | Steel, Stainless steel, Special materials |
| Engineering Service: tank modelling, in-/out-breathing calculations, VOC emission calculation,Engineering | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Flow test facility (world's largest independent certified flow test facility) | Braunschweiger Flammenfilter GmbH | – | – | erste Anla | Technology Center, Auf dem Anger 4R, 38110 Braunschweig |
| Climate chamber (-70°C to +150°C) | – | 1 | – | – | Technology Center, Braunschweig |
| Cryogenic test rig | – | 1 | – | – | Technology Center, Braunschweig |
| Salt spray chamber | – | 1 | – | – | Technology Center, Braunschweig |
| Valve test rig | – | 1 | – | – | Technology Center, Braunschweig |
| Mechanical workshop | – | 1 | – | – | Technology Center, Braunschweig |
| Low-pressure measuring systems | – | – | – | – | Technology Center, Braunschweig |
Additional services
Reference customers
Quality and Certification
All PROTEGO valves and flame arresters are flow-tested; the certified flow test facility is recognised by TÜV Rheinland according to API 2000, DIN EN ISO 28300 and DIN EN ISO 16852. The management system is certified to ISO 9001 and ISO 14001, supplemented by PED, ATEX, AD 2000 HP0 and DNV welding workshop approval.
| Evidence | Braunschweig |
|---|---|
| ISO 9001 | |
| ISO 14001 | |
| PED 2014/68/EU Module H/H1 | |
| ATEX 2014/34/EU | |
| DNV Welding Workshop Approval | |
| TÜV flow test facility certificate |
Company History
- 1954
Founded by Robert Leinemann in Braunschweig
- 1954-1967
Robert Leinemann (1st generation)
- 1965
First flow measurement facility commissioned
- 1967-2000
Hubert Leinemann (2nd generation)
- 1992-2013
Christoph Leinemann (3rd generation)
- 1994
First certification ISO 9001/ISO 14001 (21.01.1994)
- 2000
Renewal of the flow measurement facility
- 2022
Signing of the Diversity Charter (May 2022)