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All Categories > Regulators (Water, Steam, Air) > Main Valves > Type E8 Main Valve  

Type E8 Main Valve

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Features
  • Air Loaded
  • Normally Closed
  • Single Seat
  • Balanced Metal Diaphragms
  • ANSI/FCI 70-2 Class IV Shutoff
  • No Minimum Operating Differential Pressure
  • Packless Construction
  • No Pilot Needed
  • Maximum 50 PSI Air Delivery Pressure
  • Permits Remote Operation and Control
  • Economical Alternative to Control Valve
Typical Configurations
  • Pressure Reducing - Type E8 65A
  • Pressure Reducing - Type E8 A Panel
  • Pressure Reducing - Type E8 B Panel
  • Pressure Reducing - Type E8EPC
  • Temperature Control - TypeE8T61
  • Temperature Control - Type E8EPC
Applicable Data
  • Pressure Regulating for Steam Distribution
  • Regulating for Process Control (Temperature or Pressure)
  • Maintain Back Pressure or Differential Pressure
  • To use Air Load Pressure to Control Delivery Pressure
  • Single Point or Multiple Use Applications
  • Slow Start-up or Shutdown
  • Use where "Dirty Steam" Conditions Exist
Specification

The valve shall be air operated, single seated, metal diaphragm actuated, normally closed design. The valve will function quickly and shut tight on dead end service. Internal parts including seats, discs, stems and diaphragms shall be of stainless steel. There shall be no springs in the steam space and no stuffing box. The valve shall be easy to maintain with all parts accessible without removal from the line.





Specifications

Size
3/8 to 12 in

Pressure at 406ºF
250 psig

Body Material
Cast Iron - ASTM A126 Cl. B

Stem Material
303 Stainless Steel ASTM A582

Disc Material
3/4 - 5" - 420 Stainless Steel ASTM A743 CA-40
6 - 12" - 304 Stainless Steel ASTM A167/A240

Seat Material
3/4 - 5" - 420 Stainless Steel ASTM A743 CA-40
6 - 12" - 316 Stainless Steel ASTM A743-79 CF-8M

Gasket Material
Non-asbestos

Diaphragm Material
Stainless Steel MIL-S-5059C

Spring Material
Steel

Options
Balanced Construction
Composition Disc
Dashpot
EZ Connections
Insulcap Insulating Jacket
Parabolic Disc


 MORE IMAGES 

·  Valve Rating (Type E8 Main Valve)

·  Dimensions & Weight (Type E8 Main Valve)

·  Rated Flow Coefficients (Type E8 Main Valve)


 DOWNLOADS 

Main Valve Options
(PDF, 192KB)


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