Sigma Scientific Glass Pvt. Ltd manufactures Sampling Valves. Sigma Scientific Glass Pvt. Ltd is an ISO 9001:2000 certified company. Sampling Valves are used in chemical, pharmaceutical, dyes and allied industries. These are made of borosilicate glass 3.3 and PTFE or PFA, which ensures maximum resistance to corrosion. The glass body of Sampling Valves provides visual monitoring of valve operation and is designed for installation in horizontal pipelines. They possess two different versions one for under vacuum operation and other for positive or atmospheric pressure.
