high capacity, law pressure valve for settings psi) rising over several ranges. Applications Include sensing low pressure low pressure gas, water, fuel, oil, or for liquid level sensing and control. By piping to the vacuum port, the valve can be used to sense vacuum pressure from overload on gas engines by sensing the vacuum Typical applications • Sense low pressure or vacuum of water, • Detection of overload on gas engines • Sensing of vacuum Intake air manifold • 3-way valve has balanced force design • Pressure can be applied at any port • Buna N (Mitrile) "tadpole" seals are easily • Bubble-tight seals with center dead spot • Gulfproof finish standard

Low Pressure Valve - Model 4047 Operation 2-WAY Valve to open on rising pressure Port 1 must be plugged. Rising pressure will open Port 2 to Port 3 above the trip point. Valve to open on falling pressure Port 3 must be plugged. Falling pressure will open Port 2 to Port 1 below the set trip point. 3-WAY Valve operation for 3-way action is identical with that for 2-way except that there will be no plugged ports. On valves set to trip on rising pressure, Port 1 will open to Port 2 until just below the trip point. Port 3 will open to Port 2 at the trip point. On falling pressure, Port 3 will close...

Low Pressure Valve - Model 4047 Use the table below to select the unique specification of your 4047 Low Pressure Valve:

Low Pressure Valve - Model 4047 Maintenance Properly applied and installed, Model 4047 requires minimal maintenance. Unless leakage or other problems are noticed sooner, an inspection of the units at yearly intervals is adequate to detect and make provision for normal wear and preventative maintenance. It is recommended that the valve be checked monthly if possible for proper functioning by simulating an unsafe condition. Service kits Service Kit No. 9169X001 - Buna N Service Kit No. 9169X002 - Viton Ref Qty Description Ref Qty Description 8 1 O-ring 8 1 O-ring 10 1 Diaphragm 10 1 Diaphragm 12...

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