Tag Archive for engineering coatings

Electroless Nickel Plating for Valve Components in Engineering Applications

We recently published a blog post regarding the use of electroless nickel for valves and flow control devices in the oil and gas industry. Although electroless nickel has been used successfully on ball valves in the oil and gas industry, it has been equally successful on valve components in other engineering applications too.

It is essential that valves can be opened and closed easily and reliably whenever necessary, even though no movement from a set position may have occurred over a long period of time. Protection of the stems from corrosion and abrasion can be achieved by coating with electroless nickel.

Electroless Nickel Coatings for Fire-Flow Valves

Electroless nickel coatings have also been beneficial in the manufacture and performance of fire-flow valves due to their corrosion resistance, hardness, surface finish and lubricity. Fire-flow valves are required to provide a tight seal during normal operations and to act as shut off valves after inadvertent exposure to 650C.

Electroless nickel is also used on some critical safety valve applications. For example, blowout preventers are safety valves used to shut down oil and gas wells in emergency situations. A unit consists of a hydraulically operated ram, capable of cutting through the tubing carrying the oil and gas to seal the flow.

After testing, a unit is only required to operate once in an emergency but to ensure satisfactory performance, it is mandatory that no corrosion or physical damage occurs on the ram or sealing surfaces. Electroless nickel coatings are frequently used to provide the hardness and corrosion resistance required.

Corrosion Resistant Oil and Gas Coatings

NiTEC UK provide a range of metal finishing and metal plating services for both onshore and offshore oil and gas applications. For more information about corrosion resistant coatings, please call NiTEC UK on 0845 224 3571 or email info@nitec-enp.co.uk