Series 2000 Single Seated Globe Control Valves with Top Guide

Single Seated Globe Valve with Top Guide

Description

Promotes tightness and heavy duty control.

  • Flow Direction: Flow to Open or Flow to Close
  • Max. Fluid Temperature: 1049°F
  • Min. Fluid Temperature: -320°F
  • Seat Leakages: ANSI B16.104 Class IV
    • Option 1: ANSI B16.104 Class V for Metal Seat Tight Shut off
    • Option 2: ANSI B16.104 Class VI for Teflon Soft Seat & Seal (-22°F ~446°F)
  • Body: Globe Single Seated Top Guide
  • Bonnet Type: Stud Bolted
    • Standard Type: -0.4°F ~ 536°F
    • Extension Type: 538°F ~ 1049°F & under -0.4°F
  • Flow Characteristics: Linear, Equal Percentage, Modified %, Semi-Throtle
  • Cv Ratio: 50:1
  • Diaphragm actuators enclosed, heavy duty Cylinders (spring-cylinder and double-cylinder) available
  • Applicable for various instruments (positioner, SOV, limit switch)

Contoured Trim (Thread & Quick Change Trim)

The contoured plug is design with a specially represented valve plug head. The plug head represent defines the flow characteristic through the valve, and offers a smooth profile to the flow leading to a high pressure recovery. The trim is most suited to low pressure drop application and is used in the majority of control applications.

Contoured Soft Seat Trim

An alternative of the standard contoured plug is the soft seated option. The plug head is manufactured with a clamped on shroud which locks the soft seated ring in position. When the soft face contacts the seating point it deforms the softer ring ensuring a high degree of closure. The soft faced plug is used on applications where bubble tight shut off is required.

Tendril (Multi-hole, Multi-stage) Trim

The trim design presented is a multi-stage, multi-hole trim. There are 1 ~ 5 Stage designs available depending on pressure drop and potential for cavitation. The fluid passes through the flow path generated by incorporating angled flats onto the surface of the plug, together with a cut out on the internal diameter of the seat. The pressure drop is apportioned across the stages of letdown so that the pressure drop progressively reduces as it passes through the stages of the trim. This gives excellent resistance to cavitation on high pressure drop applications. For very high pressure drop applications the plug and seat insert would be manufactured from tungsten carbide or glass metallic optionally.

Multi-Grooved (Cascade) Trim

Cascade trim for non-compressible fluid applications is designed for any number of grooves of required pressure drop to meet the specifications for preventing cavitation from occurring and eventual erosion. There are 8~9 grooves designs available depending on pressure drop and potential for cavitation. The fluid passes through the flow path generated by incorporating angled flats onto the surface of the plug, together with a cut out on the internal surface of the seat. The pressure drop is apportioned across the stages of letdown so that the pressure drop progressively reduces as it passes through the grooves of the trim. This gives excellent resistance to cavitation on high pressure drop applications. For very high pressure drop applications the plug and seat insert would be manufactured from tungsten carbide or advanced glass metallic optionally.

Micro Trim

The micro trim designs a seat guided construction, capable of handling high pressure drops, without instability problems. This trim design has an inherent flow characteristic of Linear of Modified Equal Percentage, and has excellent rangeability. It is an ideal selection for the control of very low flow rates. For very high pressure drop applications, or flows which would have potential cavitation, there are multi-stage options of this design (5 stages maximum), and there are also applicable tungsten carbide and advanced glass metallic options for pressure drops greater than 1450 psi.

Series 2000 Single-Seated Globe Control Valve Brochure

Coming soon…