Features

• Precision Control of Low-Pressure Settings

• Corrosion Resistance

• Tamper-Resistant Adjustment

Body Sizes and End Connection Styles

Cast Iron1-1/2-inch (DN 40) body size NPT end connection2-inch (DN 50) body size NPT or 125 FF end connections

Steel or Stainless Steel1-1/2 or 2-inch (DN 40 or 50) body size NPT, SWE, 150 RF, 300 RF, or PN 16/25/40 end connections

Hastelloy C1-1/2 or 2-inch (DN 40 or 50) body size 150 RF end connections

Pressure Registration

Y692VB: InternalY692VBM: External

Maximum Allowable Inlet Pressure

1-3/16-inch (30,2 mm) Orifice: 13 psig (0,9 bar)3/4-inch (19,1 mm) Orifice: 30 psig (2,1 bar)

Maximum Outlet (Casing) Pressure

8 psig (0,55 bar) vacuum

Vacuum Control Pressure Ranges

1-inch w.c. to 3 psig (2 to 207 mbar) in six ranges

Temperature Capabilities

Nitrile: -20 to 180°F (-29 to 82°C)Fluoroelastomer (FKM): 40 to 300°F (4 to 149°C)Perfluoroelastomer (FFKM): -20 to 300°F (-29 to 149°C)Ethylenepropylene (EPDM): -20 to 275°F (-29 to 135°C)Silicone: -40 to 300°F (-40 to 149°C)