Material ● Body-Brass , mill finished. ● Breather cap-Brass ,mill finished . ● Seal valves core - Brass core with Rubber FKM ● Stainless spring.
Thread gasket ● A: Sealing ring rubber NBR 85 ● B: Sealing ring rubber FKM 80° ● A and B type gaskets conform to DIN3869 standard.
Working pressure ● 0.05 bar~0.25 bar
Maximum continuous working temperature ● A:-40°C~100°C. ● B:-20°C~180
Accessories on request ● Other materials . ● Other working pressure
Technical Characteristics ● Breather valve H-QB are used when the air exchange is tobe allowed between the inside of the container and theambient air. ● its normal state, the seal valves core was closed thevalves so prevents dirt or dust getting inside the box.