Ball Valve Metal Seat Material

Ball valve seat materials and applications virgin ptfe polytetrafluoroethylene ptfe or tfe teflon is a fluorocarbon based polymer and typically is the most chemically resistant of all plastics while retaining excellent thermal and electrical insulation properties.

Ball valve metal seat material. This seating material has excellent chemical resistance and low coefficient of friction. Tfe also has a low coefficient of friction so is. Soft seated ball valves. Depending on the valve and trim we can achieve temperatures in excess of 1000 f for metal seated ball valves.

Metal seated ball valves are guaranteed for a maximum service temperature of 572 f trim symbol 5h and 932 f trim symbol 6h. Metal seats can stand up to extreme flashing hydraulic shock abrasive process fluid and high temperatures up to and exceeding 1 000 f. Soft seats are generally made of thermoplastic materials like ptfe. Severe service metal seated ball valves for high temperature abrasive and corrosive applications.

This material is the basic seat material used in most floating ball valves. Quarter turn valves product line. Flo tite offers metal seats in different classes of shut off including class iv v and vi. Metal seated ball valves use metal such as 316 stainless steel or monel as the seat material.

Metal seats are hand lapped to the ball as individually matched sets assuring line contact between valve ball and seats resulting in smooth operation and tight shut off class. Metal seat valves m for service with severe flashing hydraulic shock high temperature or abrasive media. For hard graphite seated ball valves a maximum service temperature of 932 f is also guaranteed trim symbol 3h. It s chemical compatibility is excellent for almost all media service applications.

Temperature range 45 5 c to 204 c. Extreme series can reach temperature up to 1200 f metallic ansi class 150 60. The majorities of ball valves have soft seat inserts and use a thermoplastic material such as polytetrafluoroethylene ptfe or nitrile butadiene rubber nbr. Securaseal metal seated ball valves.

However soft seats are not recommended for process fluids that are dirty or abrasive. Metal seated ball valves the key advantage of metal seated valves when compared to soft seated valves is that they can withstand high temperatures and severe service conditions. Engineering bulletin ball valve seat and seal materials seat materials applications t virgin ptfe polytetrafluoroethylene is a fluorocarbon based polymer. They re great for applications where chemical compatibility is important and where the tightest seal is key.

Cast split body flanged ball valves.