Alfa Laval 9630044938 is an OEM reference for a double R90 mechanical shaft seal listed for SSP SR and SRU2 pumps. The specification lists the SS/C + SS/C sealing-face combination and EPDM/EPDM elastomers. The associated R90 seal designation is 7400.102E/102E. The corresponding KE MOTION HYDRO product reference is NV-D SR.