Introducing the revolutionary QFBV model Flange Ball Valve, a true masterpiece in valve engineering. This cutting-edge solution is designed to provide a full bore, quarter-turn mechanism for seamless on/off applications. Whether you prefer manual control or the convenience of automatic operation (via electric or pneumatic versions), this valve is crafted with a robust, two-piece construction that not only ensures easy maintenance but also promises a long-lasting operational life. Renowned as the preferred choice for a wide range of industrial applications and utility services, its versatility is unmatched. Thanks to a diverse range of seats and body materials, this valve meets the demands of a multitude of industrial purposes with unparalleled precision.
Rigorous Testing
- Our Body Strength Test is rigorously conducted in strict adherence to the stringent BS EN 12266-1 standards. This ensures that the valve can withstand a pressure level of 1.5 times its nominal pressure (PN), offering you the ultimate assurance of its durability and reliability.
- The Seat Tightness Test is performed following the standards of BS EN 12266-1, with a testing pressure of 1.1 times the nominal pressure. Furthermore, it adheres to ISO 5208 Rate A, guaranteeing absolute leakage protection and optimal performance.
- Pressure Testing: Meticulously conducted as per BS EN ISO 5208 standards
Outstanding Features
- Crafted with meticulous precision, this valve features a two-piece ductile iron body and a full bore design, ensuring superior flow management and efficiency.
- Equipped with a floating seat, spherical seat, and floating ball alongside adaptive sealing, this valve embodies a fireproof design, making it the ideal choice for fire protection pipelines.
- Engineered with a symmetrical valve seat design, it ensures that switching, installation, sealing, and pressure remain non-directional, significantly enhancing its versatility and adaptability.
- The valve stem is expertly incorporated with a wear-resistant bushing design, minimizing torque and extending the lifespan. The self-tightening upper seal design ensures zero leakage even under high pressure.
- The upper flange complies with the ISO5211 standard, guaranteeing compatibility and reliability for seamless integration.
- With the ball solution treated or hard chrome plated, this design ensures exceptional material stability and surface wear resistance, enhancing both sealing efficiency and product longevity.
- The design allows for easy installation, featuring a handle with a positioning lock design for added convenience and security.
| No. |
Part Name |
Material |
Standard |
| 1 |
Body |
Ductile Iron |
EN GJS500-7 |
| 2 |
Bonnet |
Ductile Iron |
EN GJS500-7 |
| 3 |
Ball |
Stainless Steel |
SS304 |
| 4 |
Stem |
Stainless Steel |
SS304 |
| 5 |
Packing |
Rubber |
PTFE |
| 6 |
Hand Lever |
Ductile Iron |
EN GJS500-7 |
Precise Dimensions
| INCH |
DN |
L |
D |
D1 |
b |
n-φD |
| PN10 |
PN16 |
| 1-1/4'' |
32 |
130 |
140 |
100 |
19 |
4-φ19 |
| 1-1/2'' |
40 |
140 |
150 |
110 |
19 |
4-φ19 |
| 2'' |
50 |
150 |
165 |
125 |
19 |
4-φ19 |
| 2-1/2'' |
65 |
170 |
185 |
145 |
19 |
4-φ19 |
| 3'' |
80 |
180 |
200 |
160 |
19 |
8-φ19 |
| 4'' |
100 |
190 |
220 |
180 |
19 |
8-φ19 |
| 5'' |
125 |
325 |
250 |
210 |
19 |
8-φ19 |
| 6'' |
150 |
350 |
285 |
240 |
19 |
8-φ23 |
| 8'' |
200 |
400 |
340 |
295 |
22 |
8-φ23 |
12-φ23 |
| 10'' |
250 |
450 |
405 |
355 |
24 |
12-φ23 |
12-φ27 |
For any inquiries or further details, feel free to contact us! Your satisfaction is our utmost priority, and we are here to assist you with any information or assistance you might require.
Audited Supplier 
){kind=link}