Introducing the innovative QFBV model Flange Ball Valve, a masterpiece of engineering crafted for seamless on/off applications. This full bore, quarter-turn valve offers the versatility of manual or automated control, whether electric or pneumatic, making it an ideal choice for both industrial and utility services. Its robust two-piece construction guarantees easy maintenance and a prolonged lifespan, ensuring reliability in diverse settings. The array of available seat and body materials makes it exceptionally adaptable to meet various industrial needs.
Testing
- Body Strength Test: BS EN 12266-1: Conducted at 1.5 times the PN rating for impeccable durability and performance assurance.
- Seat Tightness Test: BS EN 12266-1: Carried out at 1.1 times the PN rating, conforming to ISO 5208 Rate A standards for unparalleled tightness and leak prevention.
- Pressure Testing: In accordance with BS EN ISO 5208, ensuring rigorous quality and safety standards.
Features
- Crafted with a robust two-piece ductile iron body and a full bore design for optimal flow efficiency.
- Featuring a floating seat and ball, along with a spherical seat and adaptive sealing, this valve includes a fireproof design, suitable for fire protection systems.
- The valve seat boasts a symmetrical design, ensuring non-directional operation, installation ease, and exceptional sealing and pressure handling.
- The valve stem's wear-resistant bushing ensures low torque operation and extended lifespan, with a self-tightening upper seal to prevent leakage under high pressure.
- Upper flange design adheres to ISO5211 standards, reflecting top-notch quality and compatibility.
- The ball undergoes solution treatment or hard chrome plating, providing remarkable material stability and surface wear resistance, enhancing sealing and extending product longevity.
- The handle features a positioning lock design, ensuring easy and secure installation.
| 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 details and inquiries, please feel free to contact us!
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