BVA and BVAF are used for continuous control of air flow.
BVG and BVGF are used for continuous control of gas flow.
BVH and BVHS are used for continuous or partial control of hot air or flue gas flow.
BVG, BVGF, BVA, BVAF: maximum pu value of 500 mbar, DN 40 to 150, medium temperature: -20 to +60°C.
BVH, BVHS: indicates the maximum value of pu. 150 mbar, DN 40 to 100, medium temperature: high. Plus 450 degrees Celsius.
BVG and BVA can also provide manual adjustment.
BVGF and BVAF have no working gap, and the control instruction is executed without delay.
BVH, BVHS: With stop lever, TWINDISC valve disc ensures very low leakage rate.