Introducing the QFBV model Flange Ball Valve, a true marvel in the world of valve engineering, devised to deliver an impeccable full bore, quarter-turn solution for seamless on/off applications. Available in both manual and automatic versions (electric or pneumatic), this valve is meticulously crafted with a robust two-piece construction. It promises ease of maintenance and a long-lasting operational life, standing as the preferred choice for both industrial applications and utility services. Its versatility is unrivaled, courtesy of a diverse array of seats and body materials tailored to a multitude of industrial applications.
Testing
- Our Body Strength Test strictly adheres to the rigorous BS EN 12266-1 standards, ensuring that the valve can withstand a pressure of 1.5 times its nominal pressure (PN), guaranteeing outstanding durability and reliability.
- The Seat Tightness Test is meticulously conducted in accordance with BS EN 12266-1, using a testing pressure of 1.1 times the nominal pressure. It follows the ISO 5208 Rate A standard, ensuring optimal leakage protection and peace of mind.
- Pressure Testing: BS EN ISO 5208
Features
- Crafted with precision, this valve features a two-piece ductile iron body and a full bore design, facilitating efficient flow management and promoting operational excellence.
- Featuring an innovative floating seat, spherical seat, and floating ball coupled with adaptive sealing, this valve offers a fireproof design, making it an ideal choice for fire protection pipelines, ensuring safety and reliability.
- Engineered with a symmetrical valve seat design, it guarantees that switching, installation, sealing, and pressure remain non-directional, significantly enhancing its versatility and applicability.
- The valve stem boasts a wear-resistant bushing design, ensuring minimal torque and an extended lifespan. The self-tightening upper seal design provides zero leakage even under high pressure, ensuring reliability and confidence.
- The upper flange is compliant with the ISO5211 standard, ensuring compatibility and reliability across diverse applications.
- With the ball solution either treated or hard chrome plated, this design ensures exceptional material stability and surface wear resistance, enhancing sealing efficiency and bolstering product longevity.
- Easy installation is guaranteed by the thoughtfully designed handle, which features a positioning lock, ensuring secure and hassle-free setup.
| 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 feel free to contact us! Your satisfaction is our utmost priority.
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