Materials of Construction (MOC)
| Component | Material Specification |
|---|---|
| Body & Bonnet | Titanium (Grade 2 / Grade 5) |
| Stem / Spindle | Titanium |
| Seat / Trim | PTFE / PEEK / Integral |
Technical Specifications
| Parameter | Specification / Standard |
|---|---|
| Manufacturing / Design Standard | ASME B16.34 / API 6D |
| Testing Standard | API 598 / EN 12266-1 |
| Pressure Rating | Class 150 to Class 1500 |
Features & Benefits
Exceptional Seawater Corrosion Resistance
Titanium is completely immune to seawater corrosion -- no pitting, no crevice corrosion, no stress corrosion cracking, and no galvanic corrosion when properly gasketed -- outperforming SS316, NAB, and duplex stainless steel in marine and desalination service.
Immune to Chlorine and Hypochlorite
Titanium is one of the few valve materials that withstands wet chlorine gas, sodium hypochlorite, and chlorine dioxide without degradation -- making it essential for chlorine production, bleach plants, and water treatment disinfection systems.
Superior Strength-to-Weight Ratio
Grade 5 titanium (Ti-6Al-4V) provides strength comparable to many alloy steels at approximately 57% of the density -- reducing valve weight by 40% compared to equivalent steel valves, lowering pipe support requirements and installation cost.
No Biofouling
Titanium surfaces do not support marine biofouling (barnacle, algae, mussel attachment) to the same extent as copper alloys or stainless steel -- reducing maintenance and extending service life in seawater cooling and aquaculture applications.
NACE MR0175 Sour Service Compatible
Grade 2 and Grade 5 titanium meet NACE MR0175 hardness and H2S compatibility requirements for sour gas and refinery applications where other materials would suffer sulphide stress cracking.
Lightweight for Offshore and Aerospace
Grade 5 titanium's strength-to-weight advantage makes it the material of choice for offshore platform valves where weight reduction reduces platform structural load, and for aerospace ground support equipment.