What does each item in the material table represent? Please ask an expert to solve it

Just pass it on to the valve manufacturer; it mainly involves descriptions of the materials used for the valve body, valve stem, and sealing packing

The meanings of each item in the material table are as follows: 1. Globe valve: A type of valve used to control fluid flow, which can regulate the flow rate by being closed or opened. 2. BB: Indicates that the valve has a full-bore structure, meaning flow passes directly through the interior of the valve. 3. OS&Y: This indicates that the valve utilizes a rising and falling screw rod mechanism; by observing the movement of the rod, one can determine whether the valve is closed or not. 4. CL300(PN50): Indicates that the pressure rating of the valve is Class 300 (American standard) or PN50 (European standard); this refers to the maximum pressure that the valve can withstand. 5. RF (ASME B16.5): Indicates that the valve connection type is RF (Raised Face), which complies with the ASME B16.5 standard and is used for pipe flange connections. 6. ASTM A182 F316L: Indicates that the material of the valve is ASTM A182 F316L, which is a forged stainless steel material with high corrosion resistance. 7. Trim: 316L: This indicates that the material used for the internal components of the valve (such as the valve seat, disc, etc.) is 316L stainless steel, which also exhibits excellent corrosion resistance. 8. Stem: A182 F316L: This indicates that the material used for the valve stem is A182 F316L, which is the same as the material used for the main body of the valve; it is also a type of forged stainless steel. 9. Packing: FG indicates that the material used for the valve packing is FG (Flexible Graphite), which has properties such as high-temperature resistance and corrosion resistance. 10. Gasket: S.S/FG SWG: Indicates that the sealing gasket used between the valve flanges is made of stainless steel/FG (Flexible Graphite) SWG (Spiral Wound Gasket), which provides excellent sealing performance. 11. Bolt/Nut: A193 Gr.B8 CLASS 1/A194 Gr.8: Indicates that the materials used for the bolts and nuts in the valve flange connections are A193 Gr.B8 CLASS 1 and A194 Gr.8, with these designations referring to the material of the bolts and those of the nuts respectively. 12. API 602: This indicates that the valve complies with the API 602 standard, which specifies the design, manufacturing, and testing requirements for valves. 13. Bellows Sealing 1\": Indicates that the valve uses a bellows sealing mechanism to achieve better sealing performance. .

The answer on the 3rd floor can be considered the standard answer