Zhejiang KOZO Valve Co., Ltd.

01/06/2026

High pressure, zero leaks, and built to last — that’s what your project needs! 💪
Meet our Forged Steel High-Pressure Flanged Ball Valve (DN20, Class 2500, F304) — the heavy-duty solution for oil & gas, chemical, and high-pressure pipeline systems.

01/06/2026

High pressure, zero leaks, and built to last — that’s what your project needs! 💪
Meet our Forged Steel High-Pressure Flanged Ball Valve (DN20, Class 2500, F304) — the heavy-duty solution for oil & gas, chemical, and high-pressure pipeline systems.
✅ Forged F304 stainless steel body for superior corrosion resistance and long service life
✅ Class 2500 high-pressure rating — built to handle extreme pressure safely
✅ Three-piece forged construction for reliable sealing and easy maintenance
✅ Flanged connection for secure installation in critical process lines
✅ Available for actuation (electric/pneumatic) for automated control
Perfect for high-pressure applications where safety and performance can’t be compromised.
We are the manufacturer — no middleman, direct factory pricing, and full customization available for your project needs.
DM us now for inquiries and quotes! 📩

26/05/2026

Water hammer & pipe backflow ruining your pumping system? 💥
Protect your pipeline and pump station with our Weight-type Hydraulic Slow-closing Butterfly Check Valve — the ultimate safety guard for large water pipeline systems!

26/05/2026

Water hammer & pipe backflow ruining your pumping system? 💥
Protect your pipeline and pump station with our Weight-type Hydraulic Slow-closing Butterfly Check Valve — the ultimate safety guard for large water pipeline systems!
Many water supply and drainage projects face huge risks: pump shutdown reverse flow, violent water hammer pressure, pipe cracking, and equipment damage. That’s exactly where our valve shines.
✅ Dual-stage slow closing design
Fast closing for major flow cutoff + slow closing to eliminate water hammer, perfectly balance safety & efficiency.
✅ Gravity weight self-closing system
No power needed! It can close automatically by heavy weight energy when power fails, ensuring zero risk for your system.
✅ Low flow resistance & high sealing performance
Perfect for large-diameter pipelines, water plants, pumping stations, hydropower projects & municipal water supply systems.
Reliable, durable, and cost-saving for long-term project operation.
If you are looking for high-quality pipeline safety valves for your engineering project, feel free to DM us! 📩

22/05/2026

18/05/2026

⚙️ Make your pipelines leak-proof! One valve, zero leaks!

Are you looking for a pipeline valve that can withstand extreme pressure and is suitable for oil and gas transportation, district heating, and chemical media? Check out our Fully Welded Ball Valve!

✅ Fully welded structure, completely eliminating leakage problems, ensuring stable quality like new!

✅ One-piece valve body + corrosion-resistant material, suitable for direct burial underground and harsh environments!

✅ 20+ years of ultra-long maintenance-free life, greatly saving your construction costs and maintenance time!

✅ Supports multiple actuations including manual/worm gear/electric/pneumatic, covering a full range of diameters from DN15 to DN1500!

It's both a "safety guardian" for your pipelines and an "efficient manager" for your project budget!

🔥 Applicable to: Long-distance pipelines | Natural gas systems | Petrochemicals | Urban heating | Power industry

Want more technical parameters and project quotations? Welcome to send us a private message or visit our website 👇

🔗 www.kozovalve.com

18/05/2026

⚙️ Make your pipelines leak-proof! One valve, zero leaks!

Are you looking for a pipeline valve that can withstand extreme pressure and is suitable for oil and gas transportation, district heating, and chemical media? Check out our Fully Welded Ball Valve!

✅ Fully welded structure, completely eliminating leakage problems, ensuring stable quality like new!

✅ One-piece valve body + corrosion-resistant material, suitable for direct burial underground and harsh environments!

✅ 20+ years of ultra-long maintenance-free life, greatly saving your construction costs and maintenance time!

✅ Supports multiple actuations including manual/worm gear/electric/pneumatic, covering a full range of diameters from DN15 to DN1500!

It's both a "safety guardian" for your pipelines and an "efficient manager" for your project budget!

🔥 Applicable to: Long-distance pipelines | Natural gas systems | Petrochemicals | Urban heating | Power industry

Want more technical parameters and project quotations? Welcome to send us a private message or visit our website 👇

🔗 www.kozovalve.com

18/05/2026

💧 No pump stoppages, no water hammer problems – the accumulator-type hydraulically controlled slow-closing ball valve provides a gentle stop for your pipeline.

❌ Ordinary valves suddenly closing → water hammer impact → pipeline vibration, pump reversal

✅ Our valves: Automatically slow-close even during power outages → absorb pressure waves → protect pumps and pipelines

🔋 Why choose the "accumulator type"?

→ Even in a complete power outage, the accumulator automatically releases energy to ensure the valve closes safely according to the set time.

→ Unlike solenoid valves that rely on electricity, this system is inherently designed for "power outage safety."

📌 Applicable scenarios:

✔️ Waterworks pumping stations

✔️ Irrigation and water transfer projects

✔️ Industrial circulating water systems

✔️ Anywhere you don't want pipe bursts

🎥 Video/photos showing the entire slow-closing process (see below/comments)

For any questions about water hammer or valve selection, leave a message or send a private message, and our engineers will answer online.

👇 What type of outlet valve is currently used in your pumping station? Let's discuss in the comments!

11/05/2026

🔥 When “hard” meets “hard” – this valve doesn’t back down.

Check out these real product shots of our Metal‑sealing Rotary Ball Valve (Hard vs Hard design).

What makes it special?
💪 Metal‑to‑metal sealing – no soft parts to wear out
💪 Handles sand, slurry, high‑temperature ash, even coking media
💪 Zero leak, zero compromise

This is the choice for mines, power plants, steel mills, and chemical plants.

👇 Which industry would you use this valve in? Comment below!

📲 Message us for price and delivery.

11/05/2026

Ever wondered how industrial valves are made? 🎬 Take a 1-minute tour inside our valve machining workshop!

See raw metal turning into high-performance valves – cutting, shaping, drilling, and finishing with extreme accuracy. Every valve is a result of teamwork, technology, and attention to detail.

💡 Why choose our valves?
✔️ Strict quality checks
✔️ Durable & leak-proof
✔️ Customizable for your needs

👇 Drop a comment with "VALVE" if you like what you see, or message us to get a quote.

🔁 Share this video to show your network how real engineering looks like.