Zhejiang KOZO Valve Co., Ltd.

17/08/2026

Valve Factory Direct | We Manufacture, We Don't Resell

Welcome to our workshop—here, there are no middlemen, only complete process control from blueprint to finished product.

We are a valve manufacturer. From casting inspection upon arrival, precision machining, assembly to pressure testing, every step is completed in our own factory. Every valve in the pictures below has undergone a complete quality process.

✅ Direct pricing, no middlemen

✅ Materials, pressure, and actuation methods can be customized to your needs

✅ All valves undergo 100% pressure testing before leaving the factory

✅ Complete documentation including material reports and inspection records available

👀 Factory visits are welcome anytime; seeing is believing.

📩 Message or leave a comment to get a product brochure and quote

17/08/2026

Title: Top Inlet Full Bore Eccentric Ball Valve – Maintenance Without Pipe Disassembly

When your pipelines handle slurry, ash, or scaling media, you need more than just a valve; you need a solution that keeps your system running with minimal downtime.

✅ Full-bore design – near-zero flow resistance, maximum CV value for higher efficiency

✅ Top-in construction – online maintenance without removing the valve from the pipeline – ideal for buried or confined space installations

✅ Double eccentric seal – frictionless opening/closing, only half the torque of a conventional ball valve

✅ Self-compensating bidirectional seal – automatic wear compensation ensures long-term sealing reliability

✅ Particle and scale resistant – shear/clean action prevents buildup – ideal for mud, coal dust, ash and other abrasive media

✅ Wide range of materials and temperatures – carbon steel, stainless steel, alloy steel; -50°C to 600°C, suitable for gases, steam, acids, alkalis, etc.

⚙️ Quick Specifications:

Sizes: DN50 ~ DN2000 (2" ~ 80")

Pressure: PN1.0～PN6.4MPa/Class150～900

Actuation Method: Manual, Gear, Electric, Pneumatic, Hydraulic

Valve Seat: Soft Seal or Hard Seal (Alloy Cover)

💬 Questions or need a quote? Leave us a message! We'll reply quickly.

12/07/2026

Zhejiang KOZO Valve Co., Ltd. is a professional valve manufacturer integrating R&D, production, sales, and service.

Our quality philosophy:
🔬 Technological innovation
🏅 Quality pursuit
📋 Strict management
⚙️ Precision machining

With products exported worldwide, Kezhong has earned the trust of clients across the globe. We combine international quality standards with competitive domestic pricing.

Our main products:
🔹 Eccentric Half-Ball Valves
🔹 Forged Steel Ball Valves
🔹 High-Temperature Ball Valves
🔹 High-Pressure Ball Valves
🔹 ANSI-Standard Ball Valves
🔹 Large-Diameter Ball Valves
🔹 Hard-Sealed Ball Valves
🔹 All-Welded Ball Valves

Trust Kezhong – providing safe and reliable ball valves for global industrial equipment!
📩 DM us for more info
🌐 www.kozovalve.com

Valve

12/07/2026

🏭 High-Pressure Fixed Ball Valves | Casting & Forging Full Range | Factory Direct Supply

Main Text

Whether you are working on pipeline projects, petrochemical engineering, or high-pressure fluid systems, fixed ball valves are critical control components.

🔹 Cast Fixed Ball Valve: Suitable for general applications, economical solution for large diameters

🔹 Forged Fixed Ball Valve: Suitable for high pressure, high temperature, and large diameter pipelines, with superior mechanical properties

🔹 Pressure Range: Class 150 ~ Class 2500

🔹 Material Options: WCB / LCB / CF8 / CF8M / Duplex Stainless Steel / Titanium Alloy / Hastelloy

🔹 Size Range: 2" ~ 48" (DN50 ~ DN1200)

✅ Fire-safe design (API 607 ​​/ API 6FA)

✅ Anti-static and anti-stem blowout design

✅ Full bore / Reduced bore options available

✅ Fl**ge / Welded / Socket Weld Connections

👉 Whether cast or forged, we can match your requirements.

💬 Feel free to message us with your specifications; we'll provide a quick quote.

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10/06/2026

⚙️ Stronger. Denser. More Reliable. ⚙️

Meet our Forged Steel Ball Valve – built for tough jobs.

The secret? A forged body that gives you a uniform and dense structure – no weak spots, no hidden porosity.

✅ Handles high pressure like a champ
✅ Lasts longer under stress
✅ Trusted for oil, gas, steam & more

🔩 Real strength comes from within.

👇 Want to know more? Comment or message us!

01/06/2026

High pressure, zero leaks, and built to last — that’s what your project needs! 💪
Meet our Forged Steel High-Pressure Fl**ged 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 Fl**ged 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
✅ Fl**ged 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