Product Features
1. C95800 nickel aluminum bronze body with superior resistance to seawater and salt spray corrosion Valve body and disc are integrally cast from C95800 nickel aluminum bronze with nickel-aluminum strengthening phases inside. It delivers outstanding resistance to seawater pitting, crevice corrosion and marine microbial corrosion, avoiding rust and perforation under long-term seawater immersion for coastal high salt spray environments.
2. Triple eccentric friction-free hard sealing with self-tightening performance Adopting 3D eccentric geometry, the disc separates from seat instantly upon opening without scratch or abrasion during operation. Sealing specific pressure rises synchronously with worm gear torque when closing for self-tightening effect, realizing reliable bidirectional sealing up to Class VI with zero internal leakage under high-pressure brine conditions.
3. PN16 pressure rating suitable for standard seawater pipeline pressure Rigid integrated cast valve body with PN16 pressure class, resistant to seawater fluid impact and hydraulic deformation. It maintains stable operation under continuous service of seawater circulation and transportation pipelines.
4. Two structural types for full-range installation scenarios D343H flange type features high connection strength and excellent shock resistance for large-diameter long-distance main seawater pipelines; D373H wafer type is compact, lightweight and space-saving for equipment matching and dense offshore pipeline layouts, covering all marine project installation requirements.
5. Self-locking worm gear drive for easy operation and anti-misoperation High-precision worm gear reducer with large transmission ratio reduces operating torque for easy manual operation. Built-in mechanical self-locking locks the disc at any opening angle to prevent automatic rotation and displacement caused by seawater pressure impact for stable service.
6. Abrasion-resistant metal hard sealing pair for sediment-laden seawater Hard alloy surfacing on sealing surface provides high hardness and strong resistance to erosion by sediment and suspended impurities in seawater. The sealing surface remains intact under long-term scouring, extending service life and lowering maintenance frequency of seawater pipelines.
7. Full bronze bushings to prevent stem rust and jamming Bronze sleeves and bearings matched with Monel corrosion-resistant stem eliminate stem rust, seizure and sticking in seawater environments. Smooth operation is maintained even under frequent opening and closing with extended maintenance intervals.
8. Stable performance under wide temperature range for alternating hot and cold seawater Suitable for working temperature from -20℃ to 180℃, tolerating seasonal temperature alternation of seawater. C95800 material avoids stress corrosion cracking under high temperature to guarantee consistent performance of seawater systems all year round.