Check valves for offshore applications

Precision non-return valves for
wellhead instrumentation and control systems

On offshore production platforms, check valves are essential for maintaining flow integrity and safeguarding critical equipment. They are commonly used in wellhead instrumentation and chemical injection systems, where even minor backflow could compromise system safety or contaminate upstream processes. Given the harsh conditions of saltwater exposure, pressure variations, and limited maintenance access, offshore check valves must meet the highest standards in terms of material durability, sealing reliability, and pressure responsiveness.

EV Metalværk supplies precision-engineered check valves tailored for wellhead instruments and offshore control systems. Our valves are built to endure challenging subsea and topside environments, offering corrosion-resistant performance and reliable backflow protection.

What is cracking pressure, and why
does it matter in offshore applications?

Cracking pressure is the minimum upstream pressure required to open a check valve and allow forward flow. In offshore environments, where safety and flow precision are critical, selecting the right cracking pressure ensures proper valve function, prevents reverse flow, and protects upstream equipment from pressure surges or damage.

Which materials are suitable for
check valves in corrosive offshore environments?

Offshore platforms present extreme conditions, including saltwater exposure, high pressure, and aggressive chemicals. For this reason, check valves are often manufactured using corrosion-resistant materials such as 316 stainless steel, Duplex, Super Duplex, Inconel, or Monel. These alloys ensure durability and long-term performance in demanding offshore applications.