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Product features of qb2 flange double port exhaust valve
1. It can discharge the gas in the pipeline, reduce the resistance and save energy;
2. When the pipeline is under negative pressure, the product can quickly and automatically inhale air to prevent pipe rupture;
3. The exhaust capacity is many times that of the common double hole exhaust valve;
4. The floating ball bracket is made of stainless steel, with long service life, safe and reliable;
Technical parameters of qb2 flange double port exhaust valve
Applicable media | Applicable temperature | Strength test (water) MPa | Sealing test (water) MPa | body material | Floating ball bracket |
clean water | 0~80℃ | 1.5 | 0.05~1.1 | cast iron | stainless steel |
Qb2 flange double port exhaust valve drawing
Main connection dimensions
model | Nominal diameter | Main dimensions(mm) | ||||
D | D1 | D2 | L | Z-Φd | ||
QB2-10 | 40 | 145 | 110 | 85 | 430 | 4-Φ18 |
50 | 160 | 125 | 100 | 430 | 4-Φ18 | |
75 | 195 | 160 | 135 | 470 | 4-Φ18 | |
100 | 215 | 180 | 155 | 500 | 4-Φ18 | |
150 | 280 | 240 | 210 | 540 | 8-Φ20 | |
200 | 335 | 295 | 265 | 700 | 8-Φ20 |