One, the main function:

Fire breathing valve explosion-proof, its dual function, with explosion-proof flame arrestor and breather valve kill two birds with one stone, safe and convenient, fire breathing valve products comply with SY/T0511-1996 standards, divided into common type and all-weather type two series and A, B, C three operating pressure: A: -295pa +355pa, B: -295pa +980pa, C: -295pa +1765pa; fire breathing valve products meet the national standard GB5908-2004 </SPAN to style= "FONT-FAMILY:" > Properties of oil storage tank fire resistance requirements. Through the Scientific Research Institute of the Ministry of public security fire on the fire retardant core of qualified test 13 detonation and burn a hour.

Two, ordering instructions:

1, please according to product specification statements indicate the order products are all-weather type (Q) and ordinary type (P), and indicate the pressure level and specifications of the products.

The valve key part 2, products made of polytetrafluoroethylene material. In use, positive and negative pressure valve can not open at the same time. Therefore, in the storage and transportation, the installation should avoid products will be inverted and the violent collision.

3, every six months to product positive, negative valve sliding properties and the fire retardant core to conduct a clean-up cleaning and inspection. Open the normal and fire resistance performance to ensure.

Three, the technical parameters: