Gas Safety Relief Valve

This featured insert orifice is used in natural gas extractions, and is composed of 316 stainless steel. To manufacture the insert, a variety of CNC machining processes were applied. Using a Haas CNC lathe with live tooling, we turned each side, with the second side requiring a 1/2″ precision radius on top of a 15 degree lead-in angle. Next, we milled 4 slots 90 degrees apart, with .125″ in depth through 2 7/8″-16 UN-2A threads. Throughout the machining process we maintained tight tolerances of +.000″/-.005″, and a concentricity tolerance of .004″. To conduct inspection we relied on an OGP touch probe and a vision system CMM, as well as micrometers, pin gages, a custom thread gage, a drop gage, and an optical comparator.

The final insert orifice featured 3.00″ round bar stock, with a 2.750″ outside diameter and a 2.020″ to 2.5625″ inside diameter. Each of 4 slots measured 2.188″ wide, and the total insert weighed 1/2 lb. We then labeled each carton with part and lot numbers, as well as the quantity. Packaging was limited to 60 parts per box, with each box weighing a maximum of 40 lbs. Included in each order was a raw material certification, complete with chemical and mechanical properties, and quality control verification. The project took 4 to 6 weeks to complete, and was then shipped to our client for use in the oil and gas industry.