Introducing the QFBV model Flange Ball Valve, a marvel of valve engineering, meticulously designed to deliver a flawless full bore, quarter-turn solution for impeccable on/off applications. This exceptional valve is available in both manual and automated (electric or pneumatic) versions, showcasing a robust two-piece construction that ensures not only ease of maintenance but also a remarkably long operational life. It stands as the premier choice for a variety of industrial applications as well as essential utility services. Its unparalleled versatility is due to a broad array of seats and body materials, making it suitable for a wide spectrum of industrial purposes.
Testing
- Our Body Strength Test is conducted in strict adherence to the rigorous BS EN 12266-1 standards, ensuring the valve's resilience against pressure, withstanding a formidable 1.5 times its nominal pressure (PN).
- The Seat Tightness Test is meticulously performed according to BS EN 12266-1, utilizing a testing pressure of 1.1 times the nominal pressure, conforming to ISO 5208 Rate A, thus guaranteeing supreme leakage protection.
- Pressure Testing: BS EN ISO 5208
Features
- Engineered with precision, the valve features a two-piece ductile iron body and a full bore design, optimizing flow management with remarkable efficiency.
- With a sophisticated floating seat, spherical seat, and floating ball enhanced by adaptive sealing, this valve offers a fireproof design, making it perfect for fire protection pipelines.
- Designed with an ingenious symmetrical valve seat, it maintains non-directional switching, installation, sealing, and pressure, amplifying its adaptability.
- The valve stem is equipped with a wear-resistant bushing, ensuring minimized torque and a prolonged lifespan. The innovative self-tightening upper seal design promises zero leakage even under high pressure.
- The upper flange is designed in compliance with the ISO5211 standard, ensuring seamless compatibility and reliability.
- Featuring either a ball solution treated or hard chrome plated, this design guarantees exceptional material stability and surface wear resistance, significantly enhancing sealing efficiency and product durability.
- Installation is effortlessly simple thanks to the handle's intuitive positioning lock design.
| 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, please do not hesitate to contact us! Your satisfaction is our utmost priority.
Audited Supplier 
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