Features

• Common Spare Parts

• Tamper-Resistant Adjustment

• Easy Conversion

• Precision Control of Low-Pressure Settings

• Corrosion Resistance

Body Sizes

3/4 or 1-inch (DN 20 or 25)

Maximum Allowable Inlet (Positive) Pressure

150 psig (10,3 bar)

Maximum Outlet (Casing) Pressure

Full Vacuum

Maximum Emergency Outlet Pressure to Avoid Internal Parts Damage

150 psig (10,3 bar)

Spring Case Connection

1/4-inch NPT

Orifice Size

1/4-inch (6,4 mm) or 1/2-inch (12,7 mm)

Pressure Registration

Type Y690VB: InternalType Y690VBM: External

Material Temperature Capabilities

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

Approximate Weight

19 pounds (8,62 kg)