The Fisher D3 valve - a general use pneumatic on-off control valve for oil & gas applications.  The D3 valve can be applied in a wide range of oil & gas production applications such as; separator dump, blowdown, storage tank pump out line and blow case.  It is available as a 1" or 2" construction with NPT or 2" Class 600 flanges.  The actuator is attached via a hammer union.  Flow can be up or down and the actuator can be assembled air to open or air to close. 

Bringing you these advantages:

• Safer Bonnet / Valve Body Connection - The unique design provides additional protection if disassembly of bonnet/valve body connection is inadvertently started while there is still pressure in the valve body. Pins mounted in the valve bonnet help ensure the bonnet disengages from the valve body as the hammer nut is loosened, while the threads are still engaged. This allows internal pressure to be vented, while keeping the actuator retained to the valve body.
  
• Field-Selectable Flow Rates -The FloPro feature allows adjustment of the flow capacity without changing the trim. In this way, a single trim set can be used for more than one flow requirement, reducing inventory and maintenance costs.
  
• Two End Connection Styles -The D3 FloPro control valve is available in both Class 900 screwed-end and Class 600 RF flanged construction.
  
• Live-loaded Packing System- The packing system provides an improved stem seal to help prevent the loss of valuable or hazardous process fluids or gases. It features Fisher ENVIRO-SEAL packing technology to provide reduced packing maintenance and excellent emissions control.
  
• Low Temperature Materials -Valve construction materials allow use in applications as low as −46°C (−50°F).
  
• Severe Service Capability with ST Carbide^TM Trim - D3 valves are available with ST (super-tough) tungsten carbide trim for erosive service. Fisher ST Carbide trim is designed specifically for severe service applications in the oil and gas industry.
  
• NACE MR0175/ISO 15156 Service-Ready - The standard D3 FloPro trim, valve body, and bonnet meet the metallurgical requirements of NACE MR0175/ISO 15156.
  
• Field-Reversible Actuator - The D3 FloPro actuator can be field-converted from spring-to-close to spring-to-open action.
  
• Three trim sizes are available but they can be set to five different capacities using Fisher FloPro technology. 

For additional information on the D3 FloPro Control Valve contact your Spartan Controls representative.

Fisher D3 FloPro will be available for sale in October 2006.

Fisher D3 FloPro Control Valve Brochure