GFLO Globe Control Valve

The GFLO globe control valve offers superior performance in liquid and gaseous services, while permitting easy, fast and inexpensive maintenance. Unlike diaphragm-operated control valves, the spring cylinder-actuated GFLO provides stiffness and maintains high positioning accuracy, repeatability, controlled high speed and faithful response. And since it handles up to 150 psig / 10.3 Barg supply air, it also has the thrust to shut off against much higher fluid pressures.

Most diaphragm actuators rely entirely on springs to close the valve. But the design of the GFLO is such that the spring, the supply air pressure, and the fluid pressure itself combine to produce exceptionally tight shutoff. A self-aligning seat ring further enhances the shutoff capability of the GFLO.

Many common maintenance problems with globe valves can be traced to cage-guiding. The close metal-to-metal contact between the cage and plug often result in galling and sticking. That is why the GFLO is double-top stem guided. It completely avoids contact between the plug and seat retainer.

The clamped-in seat and top entry trim permits easy, quick maintenance. Plus, with GFLO's high degree of parts interchangeability, fewer inventory parts are needed. The actuator is also lighter, smaller and easier to handle than comparable diaphragm actuators.

With MASCOT's customer first approach standard GFLO's can be delivered in 1 to 2 weeks. MASCOT's GFLO... the simple, reliable, tough globe valve.

GFLO Control Valve Advantages and Feature

Does Exactly What It's Commanded to do

  • Stiff, high-thrust cylinder actuator
  • Accurate positioning
  • High repeatability
  • Faithful response
  • Controlled, high-speed stroking action

Won't Stick and Shut down the Process

  • Cage guiding eliminated
  • Double stem guiding located out of flow stream
  • Generous clearance between plug head and seat retainer

Easy, Fast and Inexpensive to Maintain

  • Top-entry servicing
  • Clamped-in seat ring
  • Evenly-compressed gasket – controlled gasket compression
  • Separable flanges
  • High degree of parts interchangeability Small, lightweight design

Won't Leak When Commanded to Close

  • High-thrust, spring-cylinder actuator
  • Self-aligning seat ring
  • Assisted shutoff from fluid pressure, cylinder spring, cylinder pressure
  • Spring fails valve to desired position, pneumatics provide additional force

Built for Toughest Service

  • Corrosion resistant construction
  • High thrust overcomes high pressures
  • Anti-cavitation and noise trim options
  • Heavy-duty plug stem
  • Factory Mutual Approved as a fuel service valve (¾ - 3-inch)

Compact and easy to install

  • Cylinder actuator is smaller than comparable diaphragm actuators
  • Lower center of gravity than comparable diaphragm actuators
  • Light weight means less pipe stress from static and dynamic loads
  • Separable end flanges allow the valve to be installed in many orientations and compensate for flange misalignment

Design provides lower total life-time cost

  • High interchangeability between sizes and other MASCOT products
  • Valve design minimizes requirements for stocking spare parts
  • Rugged, heavy-duty parts provide extended life
  • Actuator design allows simple, easy maintenance

Technical Specifications

Body Type : 2 way, 3 way, Angle & Jacketed
Size Range : 1/2" to 30.0"
Pressure Class : ANSI CL150 to ANSI CL4500
Body Materials : All Castable Alloys materials & From Bar Stock up to 2.0"
End Connections: Flanged ( Integaral & Separable ), Screwed, Butt and Socket weld
Bonnet : Standard, Extended, Cryogenic & Bellow Sealed
Guiding : Heavy duty double top stem
Gland Packing : PTFE, Braided PTFE, Grafoil, Fugitive Emission, Vaccum
Gaskets : PTFE, Spiral Grafoil, Glass filled SS
Seat Ring : Clamped - in self aligned
Plug : Large seat contact area large diameter stem is an integral part
Charactristics : Equal Percentage, Linear and Quick-open (On - Off)
Rangeability : 50 : 1
Special Trims : Cavflo, Megaflo, Gflo ZZ, Gflo ED, dB Plates
Actuator : Spring Cylinder Linear, Fully Field Reversible
Air pressure : 2.0 to 10.0 Bar
Shut off class : With Metal seat - ANSI IV or V and replaceable Soft seat - ANSI VI

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