F289 Pilot Operated Back Pressure Regulator

Product catalog summary

Overview: The document provides detailed specifications and information about the F289 Pilot Operated Back Pressure Regulator, a high-flow relief valve designed for over-pressurization protection in downstream systems. It highlights the regulator's features, applications, specifications, materials of construction, and part matrices.

Key Features:

Throttling type relief with high flow rates.
Compact design ensuring reliability due to simplicity.
Tight shutoff capability.

Applications:

Fuel Gas Relief
Gas Gathering Relief

Specifications:

Available in 1" and 2" port sizes with maximum relief inlet pressure of 50 PSIG above max output or 110 PSIG max.
Relief set pressure ranges from 10 to 100 PSIG.
Temperature range from -20 to 150 ºF with Nitrile and Neoprene, and 0 to 300 ºF with Fluoroelastomer.
Approximate weight: 2.5 lbs for 1" and 15.5 lbs for 2".

Materials of Construction:

Body and Bonnet: Aluminum for 1", Cast Iron with Aluminum Bonnet for 2".
Diaphragm and O-rings: Nitrile or Fluoroelastomer.
Gaskets: Neoprene or Composite.
Other components include stainless steel, brass, and zinc-plated steel.

Performance and Capacities:

Wide-open flow coefficients provided for different inlet piping sizes.
Capacities for natural gas with specific gravity of 0.6 detailed for various set pressures.

Part Matrices:

F289 1" and 2" part matrices include output ranges, O-ring/diaphragm material, and trim material options.

Rebuild Kits:

Available for both 1" and 2" regulators, including diaphragms, screens, gaskets, and O-rings.

Dimensions and Part Numbers:

Detailed dimensions and part numbers for components of both 1" and 2" regulators are provided.

Catalog excerpts

F289 Pilot Operated Back Pressure Regulator-1

Throttling Type Relief Compact Tight Shutoff High Flow Rates Reliability Due to Simplicity The Type F289 is a Pilot Operated Back Pressure Regulator that functions as a high flow relief valve with an adjustable set point. The F289 can be used in place of a standard relief valve to provide protection against over pressurization in the downstream system. The pilot regulator allows for accurate back pressure control with minimal buildup over the set pressure for full opening of the main valve. Applications • Fuel Gas Relief • Gas Gathering Relief Specifications

Open the catalog to page 1

F289 Pilot Operated Back Pressure Regulator-2

F289 1 NPT Main Valve Capacities and PL82 Pilot Line Size Equals Body Size [1-inch (25 mm) Inlet Piping] 2:1 Line Size to Body Size Piping [2-inch (51 mm) Inlet Piping] Line Size Equals Body Size [2-inch (51 mm) Inlet Piping] 2:1 Line Size to Body Size Piping [4-inch (102 mm) Inlet Piping] 1. Wide-open flow coefficients without outlet piping and outlet screen.

Open the catalog to page 2

F289 Pilot Operated Back Pressure Regulator-3

1" Aluminum 3/4" x 1" Aluminum Diaphragm Nitrile Assembly Fluoroelastomer Pipe Plug, Plated Steel Machine Screw 10 - 30 PSIG, Pink Range Spring 30 - 100 PSIG, Red Spring Guide, Steel Gasket, Copper Adjustment Screw, Plated Steel Bonnet, Aluminum Machine Screw, Stainless Steel Gasket, Neoprene Screen, Stainless Steel Retaining Ring, Steel 1/4” to 1/4” Pipe Nipple 10-18 PSI, Nitrile 10-18 PSI, Fluoroelastomer 18-30 PSI, Nitrile PL82 Pilot 18-30 PSI, Fluoroelastomer 30-100 PSI, Nitrile 30-100 PSI, Fluoroelastomer Body Part Number F289 1" Regulator Rebuild Kits Kit Includes Part Number Nitrile Diaphragms,...

Open the catalog to page 3