Armatures and Valves
BORTEC HARDENING TECHNOLOGY IN VALVE CONSTRUCTION
BOROCOAT® offers a significant improvement in the service life and operational reliability of the components used in valve construction.
NICKELCOAT® protects components against corrosion in aggressive environments in the oil and gas industry.
Borocoat® protects fittings from:
NICKELCOAT® protects fittings from:
Boronizing protects ball valves from abrasive wear.
Prevents cold welding in metal-seated valves.
Prevents corrosion on shut-off valves in the oil and gas industry.
For which materials are Borocoat® & nickelcoat® suitable?
- Cast iron
- Cast steel
- Stainless steel
- Tempered steel
- Alloy steel
BOROCOAT® for Fittings & Valves
Tips for successful heat treatment
NICKELCOAT® for fittings & valves
Technical information – coming soon
NICKELCOAT® Technical Recommendations
Tips for successful heat treatment – coming soon
BORTEC HARDENING PROCESS FOR OUTSTANDING CORROSION PROTECTION
In many areas of application in valve technology, high demands are placed on resistance to corrosion. For this reason, stainless steel is used very frequently in valve technology. However, many of the materials applied, such as 1.4301, have only moderate properties in terms of hardness and the resulting characteristics with regard to protection against abrasion, erosion, cavitation and cold welding. One way to compensate for these disadvantages of the materials used, without losing corrosion protection, is to use the BorTec hardening processes BORINOX®, BOROCOAT® and NICKELCOAT®. They are suitable for hardening valves and valve parts without affecting the corrosion resistance. In the following, we present some products which can be made more durable and reliable by refinement.
Stainless steel hardening for valve components
Valves and fittings are essential products in valve construction that frequently suffer from wear. Inlet and outlet valves are exposed to high mechanical stresses, often combined with additional thermal and chemical stress. Depending on the application, the demands on corrosion protection are particularly high.
Valve technology used at sea must also be able to withstand chloride-induced attacks, which are unavoidable in sea air. The chloride ions contained in seawater attack the passive layers of the steel and promote corrosion processes. In addition to the high demands on corrosion stability, cavitation phenomena are often a cause of wear in valves. Here, hardening of the stainless steel used helps to prevent damage caused by collapsing steam bubbles.
Other products that are frequently hardened using the BorTec process include valve balls, metallic seals and sliding couples, slide plates, pump housings, rotors, stators and actuators. All products are particularly susceptible to abrasion wear, cavitation and cold welding due to the low hardness of the stainless steels used.