The valve has many components that you can choose from when ordering, thus it is always important to know the media or application the valve will be used in. Knowing what end connections you need is very crucial. Not all applications can accommodate.
1.NPT (THREADED) END The valve is threaded into line with male threaded pipe going into the female threads of the valve. These come in 1-piece, 2-piece and 3-piece designs.
2.SANITARY (CLAMP) END Sanitary, or “clamp” valves have a flat face, o-ring groove that is suitable for mating with another clamp (or “ferrule”) end. This is the most common type of end connection used with sanitary/food applications because it is easy to remove from line for cleaning or repair.
3.SOCKET (WELDED) END The valve is welded in line to a mating piece of nonthreaded pipe. Valves have to be 3-piece design because body section needs to be removed prior to welding. Socket weld ends nds are not as extended as with butt weld valve; valve ends have to be cut out if replaced with another manufacturer’s valve (not universal).
4.BUTT WELD (EXTENDED) END Butt weld ends are used for actually welding the valve in line without having to remove the center section because the ends are extended. This is the 2nd most commonly used valve in sanitary applications and is used when the valve does not need to be regularly maintained or pulled out of line.
5.FLANGED END ANSI flanged valves meet international standards so that end-to-end (face-to-face) dimensions and mating flanges are the same with every manufacturer. The most common type of flanged valve is “raised face.”stv Valve Automation’s standard flange type is raised face ANSI 150# with a pressure rating of 275 PSI. ANSI 300# flanges are available as an option
6.LUG STYLE valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side. There are two different types of flange connections: either ANSI standard (primarily used in US) or metric/DN flanges (European). Both versions are available from Stv Valve Automation
7.WAFER STYLE valves have open (non-threaded) holes that allow a single bolt to go through each hole. The threaded bolts are then secured with a washer and nut to hold the valve between two flanges. There are two different types of flange connections: either ANSI standard (primarily used in US) or metric/DN flanges (European). Both versions are available from STV Valve Automation.
1.NPT (THREADED) END The valve is threaded into line with male threaded pipe going into the female threads of the valve. These come in 1-piece, 2-piece and 3-piece designs.
2.SANITARY (CLAMP) END Sanitary, or “clamp” valves have a flat face, o-ring groove that is suitable for mating with another clamp (or “ferrule”) end. This is the most common type of end connection used with sanitary/food applications because it is easy to remove from line for cleaning or repair.
3.SOCKET (WELDED) END The valve is welded in line to a mating piece of nonthreaded pipe. Valves have to be 3-piece design because body section needs to be removed prior to welding. Socket weld ends nds are not as extended as with butt weld valve; valve ends have to be cut out if replaced with another manufacturer’s valve (not universal).
4.BUTT WELD (EXTENDED) END Butt weld ends are used for actually welding the valve in line without having to remove the center section because the ends are extended. This is the 2nd most commonly used valve in sanitary applications and is used when the valve does not need to be regularly maintained or pulled out of line.
5.FLANGED END ANSI flanged valves meet international standards so that end-to-end (face-to-face) dimensions and mating flanges are the same with every manufacturer. The most common type of flanged valve is “raised face.”stv Valve Automation’s standard flange type is raised face ANSI 150# with a pressure rating of 275 PSI. ANSI 300# flanges are available as an option
6.LUG STYLE valves have threaded inserts at both sides of the valve body. This allows them to be installed into a system using two sets of bolts and no nuts. The valve is installed between two flanges using a separate set of bolts for each flange. This setup permits either side of the piping system to be disconnected without disturbing the other side. There are two different types of flange connections: either ANSI standard (primarily used in US) or metric/DN flanges (European). Both versions are available from Stv Valve Automation
7.WAFER STYLE valves have open (non-threaded) holes that allow a single bolt to go through each hole. The threaded bolts are then secured with a washer and nut to hold the valve between two flanges. There are two different types of flange connections: either ANSI standard (primarily used in US) or metric/DN flanges (European). Both versions are available from STV Valve Automation.
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