Rhodri Griffiths, 28, was sentenced to 10 years and six months in prison after appearing at Newport Crown court.
Griffiths, from Highland Gardens in Neath Abbey was sentenced for several counts of sexual assault, including sexual activity with a child, rape, assault by penetration and sexual assault.
Officers believe there may be more victims and are appealing for anyone who believes they might also be a victim of this man to come forward.
Gwent Police, who led the investigation, say they know Griffiths has added and messaged girls on Snapchat in the past using fake usernames – often using the name ‘James.’
In this case, he messaged the girl on Snapchat, drove to her home address and took her to a secluded hospital car park where the offences took place.
Detective Constable Georgia Dunne, the officer in the case, said: “We’d like to thank the victim and witnesses for coming forward and reporting the incident to the police. They have shown tremendous bravery and resilience throughout the investigation and the subsequent court process.
“Rhodri Griffiths is a dangerous man, and we welcome the sentence provided by the courts and hope that he uses this time to reflect on his actions.”
Detective Chief Inspector Matthew Sedgebeer, the senior investigating officer, said: “The behaviour displayed by Rhodri Griffiths suggests that there could be more victims who may not have come forward.
“We hope this outcome shows anyone who is a victim of sexual assault that they will be listened to, believed and respected. We take all allegations very seriously and if a report is made to us, we investigate it thoroughly.
“We want to reassure anyone considering doing so that there is a whole range of support out there; not only from Gwent Police but from partner agencies who can help you through the entire process.
Griffiths was sentenced to 10 years and six months in prison.
(Lead image: Gwent Police)