The new 16 in. IVP 250 is a permanent, insertable gate valve offering increased strength, improved performance, and simplified installation and operation. The product features a 2-in.-diameter stainless steel valve stem, interchangeable valve gate/paddle system to accommodate most types of pipe, a double O-ring seal, true “wedge” style gate design, thrust washers, reinforced and improved valve gate seal, and loose stem nut design for simplified operation and superior performance in severe conditions.