Female- Female Needle Valves are suitable for screwed in bonnet as well as integral bonnet types and also for screwing ends, which are adjusted is in between tube ends. These Needle Valves are made from quality grade materials like 304, 316 grade stainless steel, carbon steel, brass test monel and hastelloy C. Needle Valves are extensively used in test bench, chemical plants, food process, oil and petrochemical industries. Female- Female Needle Valves are manufactured by Venus Engineers.