What are the sealing types of hydraulic hose connectors?

The sealing type of a hydraulic hose connector is related to the connector's head shape. Common sealing types include Type A, Type B, Type C, Type D, Type H, Type Q, and ED seals. Type A is the commonly mentioned flat-head seal, while Type C has a tapered, flared shape, also known as a conical seal. Type H is similar to Type A, but the head sealing groove is different. ED seals require sealing rings made of various materials. These are the sealing types of hydraulic hose connectors.