Globe valves, as is the case with all valve designs, have both
advantages and disadvantages. Like a gate, they close slowly to
prevent fluid hammer. You can throttle the flow and they will not
leak under low pressure when they are shut off. Flow and pressure
control valves as well as hose bibs generally use the globe
pattern. The disadvantage of this design is that the "Z" pattern
restricts flow more than the gate, ball, or butterfly valves.
All psi ratings apply to water, oil, or gas. Steam is usually
derated by one half. (250 psi water or 125 psi steam). For more
information on valve selection and service, see our catalog's
Reference section or look in the index for the book, "Valve
Selection and Maintenance Guide".
Design & manufacture standard: ANSI/ASME B16.34, BS1873.
Face to face dimensions: ANSI/ASME B16.10.
Flange connection: ANSI/ASME B16.5 for NPS24, ASME B16.47A/MSS
SP-44 for NPS>24.
Butt-welding end dimensions: ANSI/ASME B16.25.
Inspection & test standard: API598.
Pressure: 150Lb, 300Lb, 600Lb, 900Lb or PN10~PN160 or JIS 10K ~ JIS
Nominal diameters: 1 1/2~ 24 or DN40~DN600.
Major materials: WCB, WC1, WC6, WC9, LCC, LCB, CF8(304), CF8M(316),
CF3(304L), CF3M(316L), etc.
Driving styles: manual/bevel gear/electric/pneumatic,etc.