Standard anodized aluminium
- Body
- Aluminium
- Pilot-head
- PA
- Surface
- Anodized
- Other parts to the outside
- Brass
- Inner parts / sealing
- Stainless steel, brass, POM, NBR
Offshore / Marine
Engineered for excellence in extreme conditions
Engineered for excellence in extreme conditions
valves for harsh and corrosive offshore environments
In marine and offshore applications, components must perform reliably under extreme conditions. Salt-laden air, high humidity, wide temperature swings, confined installation spaces, and potentially explosive atmospheres place exceptional demands on materials, sealing technology, and overall design.
We provide robust, application‑specific valve solutions engineered to meet these challenges. Our products are developed for long service life, minimal maintenance, and safe operation in corrosive and hazardous environments.
Our valves are designed for a wide range of applications, including ballast water treatment systems on ships and hydraulic valve piloting systems on offshore oil platforms.
Engineering Benefits
Why HAFNER valves are the right choice for offshore and marine applications
Thanks to special materials and surface treatments, HAFNER valves meet the highest standards for durability and corrosion resistance.
»Heavy Metal« Series
Constructed from 316L stainless steel, these valves offer exceptional durability and corrosion resistance, perfect for the toughest marine and offshore environments.
Redundant Manifold Solutions
Our redundant baseplate solutions enhance system reliability and safety through built-in redundancy. They offer an optimal solution for critical applications where reliability is a top priority.
»Salt & Valves« Series
Crafted from high-quality aluminum alloy with an Ematal coating, providing superior corrosion protection to meet C5-M standards.
Explosion-proof products
Compliant with safety regulations for explosive hazardous atmospheres. Available in Ex ec up to Ex d ratings. Meets ATEX, IECEx, CCC, UKCA, and CSA/FM standards.
Extreme Temperatures
Operates flawlessly at temperatures ranging from –50 °C to +120 °C.
SIL III Certified
SIL III certification guarantees the highest safety standards and ensures reliable performance during operation. This certification makes our products the ideal choice for safety-critical applications.
Materials
Different materials and surface treatments
Our valves are available in various material configurations to meet the diverse requirements of the offshore and marine sectors.
For standard applications that do not have specific corrosion protection requirements, we offer aluminum valves with an anodized finish.
The »Salt & Valves« Series combines aluminum valves with an Ematal surface finish and stainless steel components, which enhances the valves’ corrosion resistance. This series is C5-M tested and thus specifically designed for use in offshore environments and other corrosive areas.
For the most demanding requirements in terms of robustness and corrosion resistance, the »HAFNER Heavy Metal« Series is the optimal choice. These valves are made entirely of high-quality 316L stainless steel and offer outstanding durability and reliability even under extreme conditions.
| Property | Standard anodized aluminium | »Salt & Valves« Series | »HAFNER Heavy Metal« Series |
|---|---|---|---|
| Body | Aluminium | Aluminium | Stainless steel |
| Pilot-head | PA | Aluminium | Stainless steel |
| Surface | Anodized | Ematal anodized | Machined |
| Other parts to the outside | Brass | Stainless steel | Stainless steel |
| Inner parts | Stainless steel, brass, POM, NBR | Stainless steel, POM, PUR/FKM | Stainless steel, PUR/FKM |
»Salt & Valves« Series
- Body
- Aluminium
- Pilot-head
- Aluminium
- Surface
- Ematal
- Other parts to the outside
- Stainless steel
- Inner parts / sealing
- Stainless steel, POM, PUR/FKM
»HAFNER Heavy Metal« Series
- Body
- Stainless steel
- Pilot-head
- Stainless steel
- Surface
- Machined
- Other parts to the outside
- Stainless steel
- Inner parts / sealing
- Stainless steel, PUR/FKM
Customized Solutions
Solutions for the shippbuilding and offshore industies
We don’t just supply off‑the‑shelf components. Using our modular system, we work closely with customers to develop tailored solutions.
Redundant Manifold
Manifold block with 3/2-way double solenoid valves. Each pair of valves is redundantly connected through the manifold, ensuring reliable operation. Made from durable 316L stainless steel and equipped with Ex m magnetic coils, this system is built to last. All valve connections are in the manifold for quick and easy replacement during maintenance. Valve block is used to pilot hydraulic valves.
Redundant Solenoids
Manifold block equipped with both spring-return and double solenoid 3/2-way valves. The two front valves are equipped with double solenoids to increase the availability and thus the safety of the system.
Redundant Valve Setup
The task for this product was to replace the existing 3/2-way valve blocks in ship control cabinets with redundant 3/2-way valves (both must be energized). Space was limited. The solution: a stackable design featuring an intermediate plate that connects the valves and ensures collected venting.
Cylinder-valve combination 316L
Cylinder-valve combination plate crafted from 316L stainless steel, mounted on a double-acting ISO 15552 cylinder with a NAMUR 2 (G 1/2") interface and a corresponding NAMUR valve, also in stainless steel.
Ready to discuss your application?
Share your requirements and we'll propose a solution.