"Rectangular Port" - Homestead® Lubricated Plug Valves have rectangular shaped ports through the plug and body. The area of the port is either equal to 100% of the area of standard pipe, or restricted (standard opening); but in either case it is clearly marked for the various figure numbers.
"100% Area" (Full Port) - means the area through the valve is equal to or greater than the area of standard pipe.
"Standard Opening" - means that the area through the valve is less than the area of standard pipe, and therefore these valves should be used only where restriction of flow is unimportant.
"Round Port" - means that the valve has a full round opening through the plug and body, of the same size and area as standard pipe.
"Diamond Port" - means the opening through the plug is diamond shaped. All diamond port valves are restricted flow type.
"WOG" - Water, oil, gas (Cold working pressure)
"SWP" - Steam Working Pressure
"ANSI" - American National Standards Institute
"CWP" - Cold Working Pressure
All Valves in this Reference Book Equal of Exceed the Requirements of the Following Specifications:
Semi-Steel-125#
1.ANSI B2.1 - American Standard Taper Pipe Threads.
2. Faced and drilled in accordance with ANSI B16.1 125# Cast Iron Pipe Flanges and Flanged Fittings.
3. ANSI B16.10 - Face to Face Dimensions of Ferrous Flanged End Valves; Class 125. multiple port and round port valves not covered by this specification.
4. ASTM - A-126 Grade B - Body and Plug Material
Homestead® Lubricated Plug Valves are cast in ASTM A126 CLB. Inquires for quantities of valves in metals other than semi-steel, and port arrangements other than those shown in this catalog, are welcome.