Features

• Simple, Reliable Design

• Compact and Lightweight

• Convenient Installation in any Position

• Quick Disassembly

• Optional External Registration for Reduced Buildup

• High Capacity

Body Size and End Connection Style

2-inch NPT screwed

Maximum Relief (Inlet) Pressure

150 psig (10,3 bar), including buildup

Relief Set Pressure Range

5 to 125 psig (0,34 to 8,6 bar)

Wide-Open Sizing Coefficients

Type 1808: Cg 1410, Cv: 40.1, C1: 35.2Type 1808A: Cg: 1808, Cv: 51.7, C1: 35

Temperature Capabilities

-20 to 180°F (-29 to 82°C)

Pilot Tubing and Connections

1/4-inch NPT with or without P590 Series Filter

Options

Upstream control line construction

Approximate Weight

1808: 22 pounds (10 kg)1808A: 25 pounds (11 kg) 

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