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• Dampers can be produced in any size diameter, length x width, or face-to-face.
• Carbon steel or stainless steel are standard for body and blade construction, but any weldable alloy can be used. FRP (Fiberglass Reinforced Plastic) can also be used for body and blade construction.
• Design pressures are normally up to 60" wc but higher design pressure dampers are available.
• Dampers are available with several different types of seating configurations: scissor seat, metal-to-metal seat, step seat, resilient seat, tadpole seat, or teflon o-ring seat.
• Castable or blanket refractory is utilized for higher temperature applications; up to 2200ºF.
• Solid plate blade design is standard. For higher pressures, dampers ...
  
  

• Damprs are available in butterfly, louver and guillotine types.
• Offered in a wide range of commercially available resins and cloths.
• Shafts are of alloy construction to match your service conditions (greater strength and reliability over fiberglass shafting).
• Various seating styles available including clearance, step and elastomer.

• Frames and blades are of 12 to 16 gauge construction depending on size.
• These valves should be used in clean gas systems where particulate matter is not a concern.
• These dampers offer light weight, economy and durability in low pressure systems.
• Standard material is carbon steel but are available in a wide variety of alloy materials (304 S/S, 316 S/S aluminum, etc.).

• Various seat styles available: tadpole, clearance, scissors, and step (machined or non machined).
• Alloys to suit your needs: inconel, hastalloy, micro alloys, 310 S/S, 330 S/S and other commercially available alloys.
• Refractory lined dampers available with floating metallic liners to eliminate the erosive conditions found in many refractory lined dampers.
• Field proven designs (references upon request).

Our standard valves are:

• Availabe in wafer or lug.
• Suitable for 25 psi differential pressure through the 12" size and 15 psi differential in sizes 14" and above.
• Designed to fit between ANSI 125/150 LB. or RPM flanges.
• Able to handle temperature from -20ºF to +450ºF.

• Elastomers include Teflon*, Viton*, Neoprene, Buna, EPT, and other commercially available elastomers.
• Designs for low pressure gas and liquid handling systems means lower operating torques which reduces the cost of actuation packages.
• Carbon steel and stainless steel are standard construction but any weldable alloy can be used.
• Can be constructed for food grade service.
• AWWA type valves also available to handle higher pressures.

• Valve Assembly
• Damper Assembly
• Slidegate Assembly