Final answer:
The pintle assembly has two main components: the pintle valve and the pintle seat. The pintle valve controls the flow by moving in and out of the pintle seat, which creates a tight seal.
Step-by-step explanation:
The two main components of the pintle assembly are the pintle valve and the pintle seat. The pintle valve is a small, needle-like component that moves in and out of the pintle seat to control the flow of fluid or gas. It is typically made of a durable material such as stainless steel. The pintle seat is a specially designed opening or cavity where the pintle valve inserts. It is designed to create a tight seal when the pintle valve is closed.