GLOBE VALVE

GLOBE VALVE

GLOBE VALVES HAVE SEVERAL ADVANTAGES AND DISADVANTAGES, INCLUDING:

ADVANTAGES

  • SHUTOFF: GLOBE VALVES HAVE A GOOD SHUTOFF CAPABILITY. THROTTLING: GLOBE VALVES HAVE MODERATE TO GOOD THROTTLING CAPABILITY.
  • STROKE: GLOBE VALVES HAVE A SHORTER STROKE THAN GATE VALVES. MAINTENANCE: GLOBE VALVES ARE RELATIVELY EASY TO MACHINE OR RESURFACE THE SEATS.
  • USE: GLOBE VALVES CAN BE USED AS A STOP-CHECK VALVE. WEAR AND TEAR: GLOBE VALVES HAVE RELATIVELY LESS WEAR AND TEAR COMPARED TO OTHER VALVES.
  • HIGH PRESSURE AND TEMPERATURE RESISTANCE: GLOBE VALVES CAN WITHSTAND HIGH PRESSURES AND TEMPERATURES.

DISADVANTAGES

  • UNI-DIRECTIONAL: GLOBE VALVES CAN ONLY START, STOP, AND REGULATE THE FLUID FLOW IN ONE DIRECTION.
  • PRESSURE DROP: GLOBE VALVES CAN SUFFER FROM A HIGH PRESSURE DROP WHEN THE VALVE IS THROTTLED.
  • WEIGHT: GLOBE VALVES CAN BE HEAVY.
  • FLUID RESISTANCE: GLOBE VALVES HAVE HIGH FLUID RESISTANCE.
  • FORCE REQUIRED: GLOBE VALVES REQUIRE A LARGE FORCE FOR OPENING AND CLOSING.
  • SLOWER OPERATION: GLOBE VALVES ARE NOT SUITED FOR SITUATIONS REQUIRING QUICK OPENING OR CLOSING. GLOBE VALVES ARE TYPICALLY MADE OF STAINLESS STEEL, SUCH AS GRADES 304 AND 316. STANDARDS SUCH AS API 600 STAINLESS STEEL THREADED GLOBE VALVES DENOTE THE SIZES, PRESSURE CAPACITIES, AND OTHER PROPERTIES.