EMERSON 1805-16BF

EMERSON 1805-16BF Product Details

The EMERSON 1805-16BF is part of the Fisher™ 1805 Series of backpressure regulators and relief valves. These valves are designed for use in applications where a relief valve is needed between the first-stage and second-stage regulators, commonly found in farm tap setups. They are suitable for controlling the pressure of natural gas, air, propane, or other media compatible with the internal valve components.

Product Parameters

Here are the key specifications for the Fisher 1805 Series, which includes the 1805-16BF:

• Body Size and End Connection Styles: Available in 3/4, 1, 1-1/2, or 2 NPT (National Pipe Thread) connections.

• Maximum Inlet Pressure: 150 psig / 10,3 bar, including buildup.

• Relief Set Pressure Ranges: 5 to 125 psig / 0,34 to 8,6 bar, offered in six different spring ranges to allow for precise pressure setting.

• Temperature Capabilities: -20 to 150°F / -29 to 66°C.

• Body Material: Cast Iron (all sizes), with Ductile Iron available for 3/4 and 1 NPT body sizes for NACE (National Association of Corrosion Engineers) compliance in sour gas service.

• Internal Components: Materials include Nitrile (NBR) for the diaphragm and O-rings, Aluminum for the valve guide orifice and O-ring holder, Brass for the diaphragm plate, and Stainless Steel for the O-ring washer and vent screen.

• Approximate Weights:

• 3/4 to 1 NPT bodies: 5 pounds / 2 kg

• 1-1/2 to 2 NPT bodies: 13 pounds / 6 kg

Product Advantages

The Fisher 1805 Series relief valves offer several benefits:

• Tight Shutoff: Designed to provide reliable sealing to prevent leakage below the set pressure.

• Easy Maintenance: The internal parts can be removed for inspection and maintenance without removing the valve body from the pipeline, simplifying servicing.

• Simple Adjustment: The relief pressure setting can be easily adjusted using the adjusting screw.

• Complete Venting: Features a design that allows for full discharge of overpressure.

• Sour Gas Service Capability: Certain constructions with Ductile Iron bodies are suitable for use in sour gas environments.

• Versatile Application: Compatible with natural gas, air, propane, and other compatible media.

• Reliable Overpressure Protection: Designed to automatically relieve excess pressure and reseal when the system returns to normal operating conditions.

Precautions

When installing and operating the EMERSON 1805-16BF (or any 1805 Series relief valve), observe the following precautions:

• Installation by Qualified Personnel: Only qualified personnel should install, operate, and maintain the regulator.

• Compliance with Codes and Regulations: Ensure installation, operation, and maintenance comply with all applicable federal, state, and local codes, rules, and regulations, as well as Emerson's instructions.

• Pressure and Temperature Limits: Do not exceed the pressure and temperature limits specified on the product nameplate and in the instruction manual.

• Physical Damage Protection: Protect the installation from physical damage.

• Overpressure Hazards: Overpressuring any part of the equipment can cause damage, leaks, or personal injury. Inspect the relief valve regularly and after any overpressure event.

• Venting: Venting gas can be a safety hazard in enclosed areas. If necessary, install remote vent lines to a safe outdoor location. Ensure vent lines are of adequate size and as short as possible with minimal bends. Protect vents from blockage by rain, snow, insects, or other foreign materials.