Introducing the QFBV model Flange Ball Valve, a true triumph in valve engineering excellence! Designed to deliver a full bore, quarter-turn solution, this valve seamlessly handles on/off applications. Whether you opt for the manual version or the automatic one, available in electric or pneumatic formats, this valve showcases a robust two-piece construction. This impressive design ensures effortless maintenance and guarantees a prolonged operational life, making it the favored choice for both industrial applications and utility services. Its unrivaled versatility stems from a diverse selection of seats and body materials, adeptly catering to a wide array of industrial needs.
Testing
- Our stringent Body Strength Test complies with the rigorous BS EN 12266-1 standards, assuring that the valve can withstand a pressure of 1.5 times its nominal pressure (PN), ensuring unparalleled durability and performance.
- The Seat Tightness Test is executed in strict accordance with BS EN 12266-1, utilizing a testing pressure of 1.1 times the nominal pressure and adhering to ISO 5208 Rate A. This meticulous process guarantees optimal leakage protection, offering peace of mind with every use.
- Pressure Testing: BS EN ISO 5208
Features
- Meticulously crafted, this valve features a two-piece ductile iron body coupled with a full bore design, facilitating exceptional flow management with precision.
- Featuring a floating seat, spherical seat, and floating ball integrated with adaptive sealing, this valve is engineered with a fireproof design, making it the perfect choice for fire protection pipelines, ensuring safety and reliability.
- With a symmetrical valve seat design, this valve excels in switching, installation, sealing, and pressure, remaining non-directional for enhanced versatility across various applications.
- The valve's stem showcases a wear-resistant bushing design, reducing torque and extending lifespan. It is complemented by a self-tightening upper seal design that guarantees zero leakage even under high pressure, ensuring exceptional performance.
- The upper flange adheres to the ISO5211 standard, guaranteeing compatibility and reliability for seamless integration into existing systems.
- The ball solution, either treated or hard chrome plated, ensures outstanding material stability and surface wear resistance, enhancing sealing efficiency and prolonging product longevity.
- Installation is made effortless with the handle, which includes a positioning lock design, simplifying the process for the user.
| 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 |
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 additional details, do not hesitate to contact us! Your satisfaction is our utmost priority, and we are here to assist you.
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