BOSCH REXROTH PRESSURE RELIEF VALVE DBW30B7N5X/200-6EG24N9K4

This is a Bosch Rexorth pressure relief valve, model DBW30B7N5X/200-6EG24N9K4. The suffixes in the part number indicate some characteristics of the valve such as its maximum operating pressure, flow rate, and other technical details. Here's a breakdown of what each prefix represents:

DBW: This stands for "direct acting water operated." It indicates that the valve operates directly with water flow rather than or temperature changes to activate.

30: This denotes the inlet connection diameter of the valve, measured in millimeters. In this case, it's 30 mm.

B7: This signifies the type of end connection on the outlet side of the valve. Numbers from 1 to 8 in this section represent different types of connections, including threaded, flanged, etc. B7 means a male NPT thread connection.

N5X: This code describes the materials used to construct the valve body and major components. The letter N stands for nickel, which is commonly used in high  temperature applications due to its strength and corrosion resistance. The X following represents that the material has been modified through heat treatment to improve its mechanical properties.

200: This indicates the maximum working pressure rating of the valve in MPa (mega pa), with 200 being equivalent to 207 bar (bra).

6: This represents the size of the solenoid actuator connected to the valve. A larger value corresponds to a bigger actuator, capable of moving more volume of fluid within a given time frame.

EG24: This refers to the voltage specification of the solenoid actuator, with E representing "electromagnet", G meaning "general purpose," and 24 indicating the supply voltage in volts AC.

N9K4: This last portion should be a serial number unique to each valve.

Overall, this particular valve appears to be a direct acting water operated pressure relief valve designed for use in high pressure systems, with a male NPT threaded outlet connection and a nickel alloy construction for durability. Its maximum operating pressure rating is 207 bar, and it comes equipped with a solenoid actuator rated for operation at 24 volts AC. The specific series and serial numbers are likely not universally interchangeable with other valves of the same type.