Introducing the QFBV model Flange Ball Valve, a full bore, quarter-turn marvel engineered for seamless on/off applications. Available in both manual and automated versions (electric or pneumatic), its robust two-piece construction ensures effortless maintenance, promising a prolonged service life. This valve stands as a top choice for industrial and utility applications, thanks to its versatility and adaptability. A diverse range of seat and body materials makes it the ideal solution for an array of industrial applications.
Testing
- Body Strength Test: Adhering to BS EN 12266-1 standards, with a robust pressure testing at 1.5 times the PN rating.
- Seat Tightness Test: Compliant with BS EN 12266-1, tested at 1.1 times the PN according to ISO 5208 Rate A standards for exceptional reliability.
- Pressure Testing: In line with BS EN ISO 5208 standards, ensuring peak performance.
Features
- Crafted with a two-piece ductile iron body and a full bore design, this valve is engineered for superior functionality.
- Incorporates a floating seat, spherical seat, and a floating ball with adaptive sealing. Engineered with a fireproof design, suitable for fire protection piping systems.
- The symmetrical valve seat design ensures non-directional switching, installation, sealing, and pressure management.
- Equipped with a wear-resistant bushing design for the valve stem, ensuring low torque operation and longevity. The self-tightening upper seal guarantees no leakage under high pressure.
- Features an upper flange in accordance with the ISO5211 standard for added compatibility.
- The ball is either solution treated or hard chrome plated, providing exceptional material stability and surface wear resistance, enhancing sealing capabilities and extending product lifespan.
- The handle features a positioning lock design, facilitating easy installation and secure operation.
| 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 further information and detailed specifications, please feel free to contact us! We are here to assist you with all your queries.
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