Description
Buy Manual Reduced Bore Ball Valve Q41 Series PN10–PN40 Carbon Steel Flanged
The high-temperature one-piece flanged ball valve by VALVEHU is engineered for robust industrial applications involving steam, hot oil, and high-pressure systems. Designed in compliance with PN1.0–4.0MPa (Class PN10–40), this reduced bore ball valve offers outstanding sealing performance and extended durability in demanding environments. The integrated body design ensures stability under thermal stress and high cycle operations, making it an optimal choice for facilities prioritizing efficiency and reliability.
This industrial valve, also referred to as the Q41/QZ41/QJ41SM ball valve, features corrosion-resistant materials and a highly resilient seat suitable for high temperatures ranging from 250°C to 400°C. The floating ball structure guarantees a tight shutoff, while the anti-leakage stem packing supports long-term performance with minimal maintenance.
End connections are flanged, allowing quick installation and easy integration with pipeline systems across refineries, chemical plants, and steam distribution networks. Its reduced bore configuration ensures controlled flow and pressure management, especially in systems handling saturated steam or thermal oils. Available sizes range from DN15 to DN200, addressing both compact and large-scale applications.
This VALVEHU solution is ideal for replacing gate valves or globe valves in critical operations where quick shutoff, debris resistance, and durability are key. It performs exceptionally well in environments with acid media, heat transfer oil, or high-temperature gas. For engineers and procurement teams looking for a dependable high-temperature valve solution, this unit combines functionality, endurance, and competitive specifications.
For personalized technical consultation or sourcing assistance, contact our VALVEHU experts in China. Our team is ready to guide you toward the optimal valve for your operational requirements.
Technical Specifications
- Valve Type: One-piece reduced bore ball valve
- Pressure Rating: PN1.0 to 4.0MPa (PN10–40)
- Temperature Range: 250°C to 400°C
- Connection Type: Flanged end
- Body Design: Integrated cast steel body
- Seat Material: Wear-resistant and high-temperature sealing seat
- Operation: Manual lever operated
- Application Media: Steam, thermal oil, acidic media
- Size Range: DN15 to DN200
- Standards: Replaces globe valves and gate valves for high-temp systems
Main Connection Dimensions Table – Replacement Valve (PN10–40) (Unit: mm)
| DN (mm) | L | D | D1 | D2 | b | Z–Φd |
|---|---|---|---|---|---|---|
| 40 | 240 | 145 | 110 | 85 | 18 | 4–18 |
| 50 | 250 | 160 | 125 | 100 | 20 | 4–18 |
| 65 | 265 | 180 | 145 | 120 | 22 | 4–18 |
| 80 | 280 | 195 | 160 | 135 | 22 | 8–18 |
| 100 | 300 | 215 | 180 | 155 | 24 | 8–18 |
| 125 | 325 | 245 | 210 | 185 | 26 | 8–18 |
| 150 | 350 | 280 | 240 | 210 | 28 | 8–23 |
| 200 | 400 | 335 | 295 | 265 | 30 | 12–23 |
Connection Dimensions Table – Replacement Gate Valve (PN10–40) (Unit: mm)
| DN (mm) | L | D | D1 | D2 | b | Z–Φd |
|---|---|---|---|---|---|---|
| 15 | 130 | 95 | 65 | 45 | 16 | 4–14 |
| 20 | 150 | 105 | 75 | 55 | 16 | 4–14 |
| 25 | 160 | 115 | 85 | 65 | 16 | 4–14 |
| 32 | 180 | 135 | 100 | 78 | 18 | 4–18 |
| 40 | 200 | 145 | 110 | 85 | 18 | 4–18 |
| 50 | 230 | 160 | 125 | 100 | 20 | 4–18 |
| 65 | 290 | 180 | 145 | 120 | 22 | 4–18 |
| 80 | 310 | 195 | 160 | 135 | 22 | 8–18 |
| 100 | 350 | 215 | 180 | 155 | 24 | 8–18 |
| 125 | 400 | 245 | 210 | 185 | 26 | 8–18 |
| 150 | 480 | 280 | 240 | 210 | 28 | 8–23 |
FAQ
What makes this ball valve suitable for high-temperature applications?
It features a forged steel body and graphite sealing seat, ideal for 250–400°C temperature ranges.
Can this valve replace gate or globe valves directly?
Yes, the dimensions conform to replacement standards for both gate and globe valves (PN10–40).
What media can this valve handle?
It is compatible with steam, thermal oil, condensate, acidic fluids, and heat-conducting oils.
What is the expected service life of this valve?
Thanks to the high-strength materials and seat design, it lasts 3–5 times longer than traditional valves.
Does VALVEHU provide technical support for selection or customization?
Absolutely. Our engineers can assist with sizing, material selection, and pressure-temperature rating optimization.
Reviews
There are no reviews yet.