1. It is suitable for safety protection of butterfly valves used in petroleum, chemical industry and industry pipeline system.
2. It is suitable for the safety protection of butterfly valves used in water conservancy, power and municipal government pipeline system.
3. It is suitable for the safety protection of butterfly valves used in pharmaceutical, papermaking, steel, beverage and other large piping systems.
4. It is suitable for the safety protection of butterfly valves used in construction industry, commercial community, domestic water heating and decoration, etc.
5. Apply to all other piping systems equipped with butterfly valves for safety protection.