High Performance Seawater Butterfly Valve
- Connection Type
-
- Flange, Lug, Wafer, Welding
- Actuation Type
-
- Manual, Worm Gear, Hydraulic, Electric, Pneumatic
ZZJG's high performance double-offset seawater butterfly valve is engineered for tough marine challenges: its debris-proof metal-to-metal sealing cuts iron wire, sheds barnacles, and eliminates elastomer fatigue leaks; marine-grade alloys resist chloride pitting and SCC for 2× longer life than carbon steel; low-torque, tool-free design enables 30% faster installation with zero downtime; it handles 350 barg (5,076 psi) and -254°C to 600°C for desalination and offshore systems; plus API certification, 5-year warranty, 24-hour quotes and free corrosion analysis for hassle-free global support.
ZZJG's Advantages
- Engineered for Real-World Seawater Challenges. 40 Years of Trust. 5 Years Guaranteed.
- Debris-Proof Sealing: Cuts Through Iron Wire, Sheds Barnacles. Full metal-to-metal sealing withstands seawater debris—cuts through iron wire, sheds barnacles, and eliminates elastomer fatigue leaks forever.
- Marine-Grade Corrosion Defense: Duplex 2205/2507, C95800, Inconel® alloys defeat chloride pitting and SCC—2× longer life than carbon steel valves.
- Effortless Installation & Maintenance Lower torque requirements + simplified design = 30% faster installation. No special tools. No downtime. Just seamless integration.
- Reliable Performance in Standard Seawater Handles 350 barg (5,076 psi) and -254°C to 600°C—perfect for desalination, cooling loops, and mid-pressure offshore systems.
- 5-Year Warranty—Backed by 40 Years of Data The longest warranty for 2-offset valves. No replacements. No surprises. Just 5 years of worry-free operation.
- Global Support, Zero Complexity: API certified. Free corrosion analysis + custom quote in 24 hours. Your seawater system deserves simplicity—without compromise.
Product Details
| Spec | Detail |
|---|---|
| Size Range | DN50~1200mm (NPS2"~160") |
| Pressure Class | Up to 430 barg |
| Matrial | ASTM A182 F51 (2205)/F53 (2507), ASTM B148 C95800, ASTM A351 CF8M (316), UNS N10276, UNS N04400 |
| Standards | ANSI, API, CE, DIN, EAC, JIS, ISO, EN |
Professional Quality
Various Types
ZZJG offers one of the most comprehensive butterfly valve product lines from a single manufacturer including triple-offset butterfly valves, double-offset butterfly valves, high performance butterfly valves etc.
Service Support
ZZJG range of aftermarket services encompasses valve repair, refurbishment, maintenance, custom engineering solutions, and genuine OEM spare parts to sustain optimal equipment performance well after installation.
Processing Ability
ZZJG employs advanced manufacturing technologies using state-of-the-art machinery and equipment to ensure our products perform in the most challenging environments.
Why ZZJG Butterfly Valves?
API 609 International Certification
Fully compliant with API 609 international standard, covering all structural types including double flange, lug, and wafer types, and has obtained global market access qualifications for the petroleum, chemical, and power industries. Class 150 ~ 2500 (PN20 ~ PN420), NPS2" ~ NPS200" (DN50 ~ DN6000), temperature range -40℃ ~ 600℃, zero-leakage, and fireproof with API 607.
Leading Eccentric Structure Design
Double and triple eccentric design, the valve shaft, valve seat, and pipeline centerline are precisely offset, significantly reducing friction and wear. Bidirectional zero-leakage pressure, with built-in anti-sludge and self-cleaning functions, suitable for harsh media such as sewage and slurry, and with a service life more than 3 times longer than conventional butterfly valves.
Reliable and Guaranteed Quality
Founded in 1981 and located in the valve capital of China, this company is a certified National High-Tech Enterprise with R&D investment exceeding 5%. Its 12-step full-process testing procedure, from material verification to finished product delivery, adheres to API 609 inspection standards to ensure zero-defect delivery.
Customized Services for All Conditions
Adaptable to all media including water, steam, oil, acids, alkalis, and gases, meeting the needs of core industries covered by API 609, such as petroleum, natural gas, chemical, and power. Specialized models are developed for different scenarios, such as fully welded, leak-free butterfly valves for heating pipelines and hydraulically controlled slow-closing check valves for hydropower stations.
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