The plunger globe valve is made of new non-metallic materials because the sealing ring has the performance of withstanding long-term high temperature and high pressure without losing elasticity, and the contact area between the plunger and the sealing ring is large, and the sealing ring system has good performance of mixed materials, so the sealing is reliable and durable. Mainly used in metallurgy, electricity, chemical industry, oil refining, fertilizer, light industry, food and other industries.