Introducing the QFBV model Flange Ball Valve, an exceptional innovation in valve engineering, meticulously crafted to deliver a full bore, quarter-turn solution for seamless on/off applications. Available in both manual and automatic (electric or pneumatic) versions, this valve is constructed with a robust, easy-to-maintain two-piece design that promises long-lasting operational life. It is the ideal choice for industrial sectors and utility services, offering unrivaled versatility with a wide array of seats and body materials tailored to meet diverse industrial demands.
Testing
- Our Body Strength Test is rigorously conducted in accordance with the stringent BS EN 12266-1 standards, ensuring that the valve can withstand pressures up to 1.5 times its nominal pressure (PN), guaranteeing exceptional durability and performance.
- The Seat Tightness Test adheres meticulously to BS EN 12266-1, utilizing a testing pressure of 1.1 times the nominal pressure, as per ISO 5208 Rate A, to ensure optimal leakage protection and reliability in operation.
- Pressure Testing: BS EN ISO 5208
Features
- Engineered with precision, the valve features a two-piece ductile iron body and a full bore design, promoting seamless and efficient flow management for superior performance.
- Designed with a floating seat, spherical seat, and floating ball combined with adaptive sealing, this valve is a fireproof marvel, perfectly suited for fire protection pipelines.
- The innovative symmetrical valve seat design ensures non-directional functionality for switching, installation, sealing, and pressure, enhancing the valve's adaptability across various applications.
- Equipped with a wear-resistant bushing design embedded in the valve stem, it minimizes torque and extends its lifespan. The self-tightening upper seal design guarantees zero leakage even under high-pressure conditions.
- The upper flange complies with the ISO5211 standard, ensuring seamless compatibility and dependable reliability for diverse applications.
- The ball solution features a treated or hard chrome-plated surface, offering outstanding material stability and surface wear resistance, which significantly enhances sealing efficiency and product longevity.
- The handle's positioning lock design ensures easy and secure installation, making it user-friendly and efficient.
| 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 further details, please feel free to reach out to us! We prioritize your satisfaction and are here to assist you with any needs or questions you may have.
Audited Supplier 
){kind=link}