Presenting the QFBV model Flange Ball Valve, an exquisite creation in valve engineering that offers a full bore, quarter-turn mechanism for effortless on/off operations. This exceptional valve, available in both manual and automatic (electric or pneumatic) formats, is engineered with a sturdy two-piece construction, ensuring straightforward maintenance and a prolonged operational lifespan. It emerges as the quintessential choice for industrial applications and utility services alike. Its unrivaled versatility is attributed to a broad selection of seats and body materials that accommodate a wide array of industrial needs, solidifying its status as a top pick for diverse applications.
Rigorous Testing Procedures
- Our Body Strength Test strictly complies with the rigorous BS EN 12266-1 standards, guaranteeing that the valve can endure a pressure that is 1.5 times its nominal pressure (PN), offering unmatched reliability and durability.
- The Seat Tightness Test is meticulously conducted in accordance with BS EN 12266-1, employing a testing pressure of 1.1 times the nominal pressure. Adhering to ISO 5208 Rate A, this ensures exceptional leakage protection, providing peace of mind and optimal performance.
- Pressure Testing Adherence: BS EN ISO 5208
Outstanding Features
- Precisely crafted, this valve features a two-piece ductile iron body and a full bore design, fostering efficient flow management for superior performance and reliability.
- Engineered with a floating seat, spherical seat, and floating ball with adaptive sealing, this valve offers a fireproof design, making it perfectly suited for fire protection pipelines, ensuring safety and enhanced functionality.
- Designed with a symmetrical valve seat, it provides directional fluidity, allowing seamless switching, installation, sealing, and pressure management, thereby maximizing its applicability and functionality.
- The valve stem is integrated with a wear-resistant bushing design, reducing torque and prolonging its lifespan. The self-tightening upper seal design further ensures zero leakage even under high pressure, reaffirming its reliability.
- The upper flange adheres to the ISO5211 standard, ensuring compatibility and unwavering reliability across various installations.
- With options for ball treatment or hard chrome plating, this design guarantees exceptional material stability and surface wear resistance, thereby enhancing sealing performance and extending product longevity.
- The handle's positioning lock design facilitates easy installation, enhancing user convenience and operational efficiency.
| 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 |
Precise Dimensions Available
| 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, don't hesitate to reach out to us! Your satisfaction is our utmost priority, and we are committed to providing excellent service.
Audited Supplier 
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