Introducing the QFBV model Flange Ball Valve, an engineering marvel designed for excellence in on/off applications. This full bore, quarter-turn valve is available in both manual and automated (electric or pneumatic) configurations. Crafted with a two-piece construction, it promises straightforward maintenance and a long-lasting operational life. Its robust design is ideal for industrial applications and utility services. The diversity in seat and body material selections makes it adaptable for various industrial needs, ensuring reliability across multiple applications.
Testing
- Body Strength Test: Conducted according to BS EN 12266-1 standards at a pressure of 1.5 times the nominal PN.
- Seat Tightness Test: Verified as per BS EN 12266-1 at 1.1 times the nominal PN, ensuring compliance with ISO 5208 Rate A standards.
- Pressure Testing: Thoroughly tested to meet BS EN ISO 5208 specifications.
Features
- Crafted with a durable two-piece ductile iron body, the valve offers a full bore design for optimal flow.
- Equipped with a floating seat, spherical seat, floating ball, and adaptive sealing, this valve also boasts a fireproof design, making it suitable for fire protection systems.
- Its valve seat features a symmetrical design, ensuring seamless switching, installation, sealing, and pressure control, all with a non-directional approach.
- The valve stem is fortified with a wear-resistant bushing, guaranteeing minimal torque requirements and extended durability. The innovative self-tightening upper seal ensures zero leakage under high pressure.
- The upper flange is crafted in strict adherence to ISO5211 standards, promising compatibility and versatility.
- The ball undergoes solution treatment or is hard chrome plated, enhancing material stability and surface wear resistance, resulting in superior sealing performance and product longevity.
- Featuring a handle with a positioning lock design, the valve ensures effortless 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, feel free to reach out to us anytime!
Audited Supplier 
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