•Made of Stainless Steel with double high temperature silicon O-rings on each flange •Two flanges as one side. One end flange has a vacuum meter with valve, and another end has valve •Seal tube by tighten screws on the flange without any welding and glue •1/4" in diameter vacuum sealing assembly will connect with 1/4" rubber hose •Excellent for any type of tubing: ceramic, glass, quartz and steel pipe
Must put a refractory tube block in front of flange ( see picture below ) to avoid heat radiation melt silicone O-ring.You may order a ceramic block in related products
