I am not sure what you're asking. Do you want to know what your withdrawal would be like, or do you want to know how to pass a urine test? Valium is a benzodiazepine. Since many people who ask this question are abusing benzodiazepines and don't want to have a "dirty" urine, here's one answer:
Benzo's stick around in your body at full strength for about 12 hours (see http://www.drugs.com/http://www.drugs.com for more info). After that the body starts into a withdrawal stage and benzodiazepine withdrawal can be more intense if the benzodiazepine involved possesses a relatively short duration of action (or how long it works at full strength) such as lorazepam. You may want to read "The Accidental Addict" by Porritt and Russell.
Benzo's are excreted from the body in the urine and the stools. According to the first website below, 95% of the drug is excreted within 120 hours (five days) mainly in the urine. So it should still be detectable in the urine after 5 days. According to the second website below the detection period in the urine for benzodiazepines in general is 3 - 7 days.
Dr. Diana Walcutt
*Dr. Walcutt is a Psychologist. Dr. Walcutt's answers are not intended to diagnose or treat any medical or mental disorder. Any information given in a post about medication is for educational purposes only, and primarily to aid you in having an informed discussion with your own Psychiatrist/Physician.