Anaesthetics India Pvt. Ltd offers Bag Bleed Valve. Anaesthetics India Pvt. Ltd is ISO 9001: 2000, ISO 13485: 2003 certified. The Bag Bleed Valve - 8221 is manufactured of light weight delrin with adjustable orifice. This valve can be inserted into the tail of a breathing bag. They are used in nursing homes and hospitals.